{"id":5932,"date":"2026-07-17T08:47:00","date_gmt":"2026-07-17T00:47:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=5932"},"modified":"2026-06-25T15:27:42","modified_gmt":"2026-06-25T07:27:42","slug":"dk-and-df-values-in-pcb-materials","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/","title":{"rendered":"\u0417\u043d\u0430\u0447\u0435\u043d\u0438\u044f Dk \u0438 Df \u0432 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430\u0445 \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442"},"content":{"rendered":"<p>\u041f\u0440\u0438 \u043e\u0446\u0435\u043d\u043a\u0435 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u0432 \u0434\u043b\u044f \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442 \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0432 \u043a\u0430\u0436\u0434\u043e\u043c \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u043f\u0430\u0441\u043f\u043e\u0440\u0442\u0435 \u043b\u0430\u043c\u0438\u043d\u0430\u0442\u0430 \u0443\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0442\u0441\u044f \u0434\u0432\u0430 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430: \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u044c (Dk) \u0438 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u043f\u043e\u0442\u0435\u0440\u044c (Df). \u042d\u0442\u0438 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0432\u043b\u0438\u044f\u044e\u0442 \u043d\u0430 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435 \u0441\u0438\u0433\u043d\u0430\u043b\u0430, \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0438\u043c\u043f\u0435\u0434\u0430\u043d\u0441\u0430, \u0432\u043d\u043e\u0441\u0438\u043c\u044b\u0435 \u043f\u043e\u0442\u0435\u0440\u0438 \u0438 \u043e\u0431\u0449\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0441\u0445\u0435\u043c\u044b.<\/p><p>\u0412 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u0438\u043a\u0435 \u0441 \u043d\u0438\u0437\u043a\u0438\u043c\u0438 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044f\u043c\u0438 \u043d\u0435\u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u043a\u043e\u043b\u0435\u0431\u0430\u043d\u0438\u044f \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0439 Dk \u0438 Df \u043c\u043e\u0433\u0443\u0442 \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043d\u0435 \u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0442\u044c \u0432\u043b\u0438\u044f\u043d\u0438\u044f. \u041e\u0434\u043d\u0430\u043a\u043e \u0432 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441\u0432\u044f\u0437\u0438, \u0432\u044b\u0441\u043e\u043a\u043e\u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u044b\u0445 \u0446\u0438\u0444\u0440\u043e\u0432\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445, \u0440\u0430\u0434\u0438\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445 \u0441\u0445\u0435\u043c\u0430\u0445 \u0438 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0438 \u0446\u0435\u043d\u0442\u0440\u043e\u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u0432 \u043f\u0440\u0438\u043e\u0431\u0440\u0435\u0442\u0430\u044e\u0442 \u0432\u0441\u0451 \u0431\u043e\u043b\u044c\u0448\u0435\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435.<\/p><p>\u041f\u043e\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u0442\u043e\u0433\u043e, \u0447\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u044e\u0442 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b Dk \u0438 Df, \u043f\u043e\u043c\u043e\u0433\u0430\u0435\u0442 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0430\u043c \u0432\u044b\u0431\u0438\u0440\u0430\u0442\u044c \u043f\u043e\u0434\u0445\u043e\u0434\u044f\u0449\u0438\u0435 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0438 \u0438\u0437\u0431\u0435\u0433\u0430\u0442\u044c \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u0441 \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c\u044e \u0441\u0438\u0433\u043d\u0430\u043b\u0430 \u043d\u0430 \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0437\u0434\u043d\u0438\u0445 \u044d\u0442\u0430\u043f\u0430\u0445 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"350\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values.jpg\" alt=\"\u0417\u043d\u0430\u0447\u0435\u043d\u0438\u044f Dk \u0438 Df\" class=\"wp-image-5933\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-300x175.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Ii. \u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#What_Is_Dielectric_Constant_Dk\" >\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u044c (Dk)?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#What_Is_Dissipation_Factor_Df\" >\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0440\u0430\u0441\u0441\u0435\u0438\u0432\u0430\u043d\u0438\u044f (Df)?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Why_Dk_Matters_in_PCB_Design\" >\u041f\u043e\u0447\u0435\u043c\u0443 Dk \u0438\u043c\u0435\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u043f\u0440\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Impedance_Control\" >\u041a\u043e\u043d\u0442\u0440\u043e\u043b\u044c \u0438\u043c\u043f\u0435\u0434\u0430\u043d\u0441\u0430<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Signal_Propagation_Delay\" >\u0417\u0430\u0434\u0435\u0440\u0436\u043a\u0430 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0441\u0438\u0433\u043d\u0430\u043b\u0430<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#RF_Circuit_Performance\" >\u0425\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0440\u0430\u0434\u0438\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445 \u0446\u0435\u043f\u0435\u0439<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Why_Df_Matters_in_High-Speed_Design\" >\u041f\u043e\u0447\u0435\u043c\u0443 Df \u0438\u043c\u0435\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u043f\u0440\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0432\u044b\u0441\u043e\u043a\u043e\u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Signal_Loss\" >\u041f\u043e\u0442\u0435\u0440\u044f \u0441\u0438\u0433\u043d\u0430\u043b\u0430.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Eye_Diagram_Performance\" >\u0425\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0434\u0438\u0430\u0433\u0440\u0430\u043c\u043c\u044b \u0433\u043b\u0430\u0437<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Longer_Routing_Distances\" >\u0411\u043e\u043b\u0435\u0435 \u0434\u043b\u0438\u043d\u043d\u044b\u0435 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u044b<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Dk_and_Df_are_frequency-dependent\" >Dk \u0438 Df \u0437\u0430\u0432\u0438\u0441\u044f\u0442 \u043e\u0442 \u0447\u0430\u0441\u0442\u043e\u0442\u044b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Typical_Material_Categories\" >\u0422\u0438\u043f\u0438\u0447\u043d\u044b\u0435 \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u0438 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u0432<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Standard_FR4\" >\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0439 FR4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#High_TG_FR4\" >FR4 \u0441 \u0432\u044b\u0441\u043e\u043a\u0438\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435\u043c \u0422\u0413<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Low-Loss_Materials\" >\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0441 \u043d\u0438\u0437\u043a\u0438\u043c\u0438 \u043f\u043e\u0442\u0435\u0440\u044f\u043c\u0438<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#RF_and_Microwave_Materials\" >\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0434\u043b\u044f \u0440\u0430\u0434\u0438\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u043e\u0433\u043e \u0438 \u043c\u0438\u043a\u0440\u043e\u0432\u043e\u043b\u043d\u043e\u0432\u043e\u0433\u043e \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u043e\u0432<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Material_Selection_Considerations\" >\u0421\u043e\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f \u043f\u043e \u0432\u044b\u0431\u043e\u0440\u0443 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Common_Engineering_Misconceptions\" >\u0420\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043d\u044b\u0435 \u0437\u0430\u0431\u043b\u0443\u0436\u0434\u0435\u043d\u0438\u044f \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0438\u0438<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Lower_Dk_Is_Always_Better\" >\u0427\u0435\u043c \u043d\u0438\u0436\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Dk, \u0442\u0435\u043c \u043b\u0443\u0447\u0448\u0435<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#Df_Only_Matters_in_RF_Design\" >Df \u0438\u043c\u0435\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0440\u0430\u0434\u0438\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#All_FR4_Materials_Have_the_Same_Dk_and_Df\" >\u0412\u0441\u0435 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b FR4 \u0438\u043c\u0435\u044e\u0442 \u043e\u0434\u0438\u043d\u0430\u043a\u043e\u0432\u044b\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f Dk \u0438 Df<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/#FAQ\" >\u0427\u0410\u0421\u0422\u041e \u0417\u0410\u0414\u0410\u0412\u0410\u0415\u041c\u042b\u0415 \u0412\u041e\u041f\u0420\u041e\u0421\u042b<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_Dielectric_Constant_Dk\"><\/span>\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u044c (Dk)?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>\u0414\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u044c, \u0447\u0430\u0441\u0442\u043e \u043e\u0431\u043e\u0437\u043d\u0430\u0447\u0430\u0435\u043c\u0430\u044f \u0441\u043e\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u0435\u043c Dk, \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0437\u0443\u0435\u0442 \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0441\u0442\u044c \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u043e\u043d\u043d\u043e\u0433\u043e \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430 \u043d\u0430\u043a\u0430\u043f\u043b\u0438\u0432\u0430\u0442\u044c \u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0443\u044e \u044d\u043d\u0435\u0440\u0433\u0438\u044e.<\/p><p>\u041f\u0440\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u0438 (Dk) \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u0435\u0442 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0441\u0438\u0433\u043d\u0430\u043b\u043e\u0432 \u0432 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0435.<\/p><p>\u0411\u043e\u043b\u0435\u0435 \u043d\u0438\u0437\u043a\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Dk, \u043a\u0430\u043a \u043f\u0440\u0430\u0432\u0438\u043b\u043e, \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a:<\/p><ul class=\"wp-block-list\"><li>\u0411\u043e\u043b\u0435\u0435 \u0431\u044b\u0441\u0442\u0440\u043e\u0435 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435 \u0441\u0438\u0433\u043d\u0430\u043b\u0430<\/li>\n\n<li>\u0423\u043c\u0435\u043d\u044c\u0448\u0435\u043d\u0438\u0435 \u0437\u0430\u0434\u0435\u0440\u0436\u043a\u0438 \u0441\u0438\u0433\u043d\u0430\u043b\u0430<\/li>\n\n<li>\u0421\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043f\u0430\u0440\u0430\u0437\u0438\u0442\u043d\u043e\u0439 \u0451\u043c\u043a\u043e\u0441\u0442\u0438<\/li><\/ul><p>\u0411\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Dk, \u043a\u0430\u043a \u043f\u0440\u0430\u0432\u0438\u043b\u043e, \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a:<\/p><ul class=\"wp-block-list\"><li>\u0411\u043e\u043b\u0435\u0435 \u043d\u0438\u0437\u043a\u0430\u044f \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0441\u0438\u0433\u043d\u0430\u043b\u0430<\/li>\n\n<li>\u0423\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u0435 \u0451\u043c\u043a\u043e\u0441\u0442\u0438<\/li>\n\n<li>\u0411\u043e\u043b\u0435\u0435 \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u044b\u0435 \u0420\u0427-\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b<\/li><\/ul><p>\u041a\u0430\u0436\u0434\u044b\u0439 \u043b\u0430\u043c\u0438\u043d\u0430\u0442\u043d\u044b\u0439 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b \u0438\u043c\u0435\u0435\u0442 \u0441\u0432\u043e\u0439 \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u0438.<\/p><p>\u041a \u0442\u0438\u043f\u0438\u0447\u043d\u044b\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f\u043c \u043e\u0442\u043d\u043e\u0441\u044f\u0442\u0441\u044f:<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u043f\u043e \u0442\u0435\u043c\u0435<\/th><th>\u0422\u0438\u043f\u0438\u0447\u043d\u044b\u0439 Dk<\/th><\/tr><tr><td>\u041f\u04424 (\u0444\u0440.)<\/td><td>4,2 \u2013 4,8<\/td><\/tr><tr><td>FR4 \u0441 \u0432\u044b\u0441\u043e\u043a\u0438\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435\u043c \u0422\u0413<\/td><td>4.1 \u2013 4.7<\/td><\/tr><tr><td>Rogers 4350B<\/td><td>3.48<\/td><\/tr><tr><td>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0438\u0437 \u041f\u0422\u0424\u042d<\/td><td>2.1 \u2013 2.6<\/td><\/tr><tr><td>\u041c\u0435\u0433\u0442\u0440\u043e\u043d 6<\/td><td>3,3 \u2013 3,5<\/td><\/tr><\/tbody><\/table><\/figure><p>\u041a\u0430\u043a \u0443\u0436\u0435 \u0443\u043f\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0441\u044c \u0432 <strong><a href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/fr4-pcb-material\/\">\u041e\u0431\u0437\u043e\u0440 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430 FR4 \u0434\u043b\u044f \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442<\/a><\/strong>, \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0439 FR4 \u043f\u043e-\u043f\u0440\u0435\u0436\u043d\u0435\u043c\u0443 \u043f\u043e\u0434\u0445\u043e\u0434\u0438\u0442 \u0434\u043b\u044f \u0431\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u0430 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043e\u0431\u0449\u0435\u0433\u043e \u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f, \u043d\u0435\u0441\u043c\u043e\u0442\u0440\u044f \u043d\u0430 \u0442\u043e, \u0447\u0442\u043e \u0435\u0433\u043e \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u0438 (Dk) \u0432\u044b\u0448\u0435, \u0447\u0435\u043c \u0443 \u043c\u043d\u043e\u0433\u0438\u0445 \u0432\u044b\u0441\u043e\u043a\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u0432.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_Dissipation_Factor_Df\"><\/span>\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0440\u0430\u0441\u0441\u0435\u0438\u0432\u0430\u043d\u0438\u044f (Df)?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>\u041a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0440\u0430\u0441\u0441\u0435\u0438\u0432\u0430\u043d\u0438\u044f \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0437\u0443\u0435\u0442, \u043a\u0430\u043a\u0430\u044f \u0447\u0430\u0441\u0442\u044c \u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u044d\u043d\u0435\u0440\u0433\u0438\u0438 \u0442\u0435\u0440\u044f\u0435\u0442\u0441\u044f \u0432 \u0432\u0438\u0434\u0435 \u0442\u0435\u043f\u043b\u0430 \u043f\u0440\u0438 \u043f\u0440\u043e\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0438 \u0441\u0438\u0433\u043d\u0430\u043b\u043e\u0432 \u0447\u0435\u0440\u0435\u0437 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b.<\/p><p>\u0418\u043d\u043e\u0433\u0434\u0430 \u0435\u0433\u043e \u043d\u0430\u0437\u044b\u0432\u0430\u044e\u0442:<\/p><ul class=\"wp-block-list\"><li>\u0422\u0430\u043d\u0433\u0435\u043d\u0441 \u043f\u043e\u0442\u0435\u0440\u044c<\/li>\n\n<li>\u0422\u0430\u043d\u0433\u0435\u043d\u0441 \u03b4<\/li>\n\n<li>\u0414\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043f\u043e\u0442\u0435\u0440\u0438<\/li><\/ul><p>\u0411\u043e\u043b\u0435\u0435 \u043d\u0438\u0437\u043a\u0438\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f Df \u0441\u0432\u0438\u0434\u0435\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u0443\u044e\u0442 \u043e \u043c\u0435\u043d\u044c\u0448\u0438\u0445 \u043f\u043e\u0442\u0435\u0440\u044f\u0445 \u0441\u0438\u0433\u043d\u0430\u043b\u0430.<\/p><p>\u0411\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u0438\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f Df \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0442 \u043a:<\/p><ul class=\"wp-block-list\"><li>\u0411\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u0438\u0435 \u0432\u043d\u043e\u0441\u0438\u043c\u044b\u0435 \u043f\u043e\u0442\u0435\u0440\u0438<\/li>\n\n<li>\u0421\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430 \u0441\u0438\u0433\u043d\u0430\u043b\u0430<\/li>\n\n<li>\u041c\u0435\u043d\u044c\u0448\u0438\u0435 \u0440\u0430\u0441\u0441\u0442\u043e\u044f\u043d\u0438\u044f \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438<\/li><\/ul><p>\u041a \u0442\u0438\u043f\u0438\u0447\u043d\u044b\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f\u043c Df \u043e\u0442\u043d\u043e\u0441\u044f\u0442\u0441\u044f:<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u043f\u043e \u0442\u0435\u043c\u0435<\/td><td>\u0422\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Df<\/td><\/tr><tr><td>\u041f\u04424 (\u0444\u0440.)<\/td><td>0,015 \u2013 0,025<\/td><\/tr><tr><td>FR4 \u0441 \u0432\u044b\u0441\u043e\u043a\u0438\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435\u043c \u0422\u0413<\/td><td>0,012 \u2013 0,020<\/td><\/tr><tr><td>Rogers 4350B<\/td><td>0.0037<\/td><\/tr><tr><td>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0438\u0437 \u041f\u0422\u0424\u042d<\/td><td>0,0009 \u2013 0,002<\/td><\/tr><tr><td>\u041c\u0435\u0433\u0442\u0440\u043e\u043d 6<\/td><td>0.002<\/td><\/tr><\/tbody><\/table><\/figure><p>\u041f\u043e \u043c\u0435\u0440\u0435 \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u044f \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 Df \u0447\u0430\u0441\u0442\u043e \u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u0441\u044f \u0431\u043e\u043b\u0435\u0435 \u0432\u0430\u0436\u043d\u044b\u043c, \u0447\u0435\u043c Dk.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Dk_Matters_in_PCB_Design\"><\/span>\u041f\u043e\u0447\u0435\u043c\u0443 Dk \u0438\u043c\u0435\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u043f\u0440\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Impedance_Control\"><\/span>\u041a\u043e\u043d\u0442\u0440\u043e\u043b\u044c \u0438\u043c\u043f\u0435\u0434\u0430\u043d\u0441\u0430<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 \u0441 \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u043c \u0438\u043c\u043f\u0435\u0434\u0430\u043d\u0441\u043e\u043c \u0432 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0441\u0442\u0435\u043f\u0435\u043d\u0438 \u0437\u0430\u0432\u0438\u0441\u044f\u0442 \u043e\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0439 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u0438.<\/p><p>\u0418\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f Dk \u043d\u0430\u043f\u0440\u044f\u043c\u0443\u044e \u0432\u043b\u0438\u044f\u044e\u0442 \u043d\u0430:<\/p><ul class=\"wp-block-list\"><li>\u0420\u0430\u0441\u0447\u0435\u0442 \u0448\u0438\u0440\u0438\u043d\u044b \u0442\u0440\u0430\u0441\u0441\u044b<\/li>\n\n<li>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f \u0434\u0438\u0444\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0439 \u043f\u0430\u0440\u044b<\/li>\n\n<li>\u0425\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u043b\u0438\u043d\u0438\u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438<\/li><\/ul><p>\u0414\u0430\u0436\u0435 \u043d\u0435\u0431\u043e\u043b\u044c\u0448\u0438\u0435 \u043a\u043e\u043b\u0435\u0431\u0430\u043d\u0438\u044f Dk \u043c\u043e\u0433\u0443\u0442 \u043f\u043e\u0432\u043b\u0438\u044f\u0442\u044c \u043d\u0430 \u0438\u043c\u043f\u0435\u0434\u0430\u043d\u0441 \u0446\u0435\u043b\u0435\u0432\u043e\u0433\u043e \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430.<\/p><p>\u041f\u043e \u044d\u0442\u043e\u0439 \u043f\u0440\u0438\u0447\u0438\u043d\u0435 \u043f\u0440\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043c\u043d\u043e\u0433\u043e\u0441\u043b\u043e\u0439\u043d\u043e\u0439 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 \u0432\u0441\u0435\u0433\u0434\u0430 \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u0443\u0447\u0438\u0442\u044b\u0432\u0430\u0442\u044c \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0434\u0430\u043d\u043d\u044b\u0435 \u043e \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430\u0445, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c \u043b\u0430\u043c\u0438\u043d\u0430\u0442\u0430.<\/p><p>\u0412\u0437\u0430\u0438\u043c\u043e\u0441\u0432\u044f\u0437\u044c \u043c\u0435\u0436\u0434\u0443 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430\u043c\u0438 \u0438 \u0440\u0430\u0441\u0441\u0442\u043e\u044f\u043d\u0438\u0435\u043c \u043c\u0435\u0436\u0434\u0443 \u0441\u043b\u043e\u044f\u043c\u0438 \u0442\u0430\u043a\u0436\u0435 \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0432 <strong><a href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/pcb-core-and-prepreg\/\">\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0434\u043b\u044f \u0438\u0437\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0435\u0440\u0434\u0435\u0447\u043d\u0438\u043a\u043e\u0432 \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442 \u0438 \u043f\u0440\u0435\u043f\u0440\u0435\u0433\u043e\u0432<\/a><\/strong>.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Signal_Propagation_Delay\"><\/span>\u0417\u0430\u0434\u0435\u0440\u0436\u043a\u0430 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0441\u0438\u0433\u043d\u0430\u043b\u0430<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u0421\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0441\u0438\u0433\u043d\u0430\u043b\u0430 \u0437\u0430\u0432\u0438\u0441\u0438\u0442 \u043e\u0442 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u0438.<\/p><p>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0441 \u0431\u043e\u043b\u0435\u0435 \u043d\u0438\u0437\u043a\u0438\u043c \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u043e\u043c \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u0438 (Dk) \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0442 \u0431\u043e\u043b\u0435\u0435 \u0431\u044b\u0441\u0442\u0440\u043e\u0435 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435 \u0441\u0438\u0433\u043d\u0430\u043b\u043e\u0432 \u043f\u043e \u043f\u0435\u0447\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0435.<\/p><p>\u042d\u0442\u043e \u043f\u0440\u0438\u043e\u0431\u0440\u0435\u0442\u0430\u0435\u0442 \u0432\u0441\u0451 \u0431\u043e\u043b\u044c\u0448\u0435\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0432 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0445 \u043e\u0431\u043b\u0430\u0441\u0442\u044f\u0445:<\/p><ul class=\"wp-block-list\"><li>\u0412\u044b\u0441\u043e\u043a\u043e\u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u044b\u0435 \u0441\u0435\u0442\u0438<\/li>\n\n<li>\u0421\u0435\u0440\u0432\u0435\u0440\u044b \u0438\u0441\u043a\u0443\u0441\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0438\u043d\u0442\u0435\u043b\u043b\u0435\u043a\u0442\u0430<\/li>\n\n<li>\u041e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435 \u0434\u043b\u044f \u0446\u0435\u043d\u0442\u0440\u043e\u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0434\u0430\u043d\u043d\u044b\u0445<\/li>\n\n<li>\u0421\u0438\u0441\u0442\u0435\u043c\u044b \u0437\u0430\u0434\u043d\u0435\u0439 \u043f\u0430\u043d\u0435\u043b\u0438<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"RF_Circuit_Performance\"><\/span>\u0425\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0440\u0430\u0434\u0438\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445 \u0446\u0435\u043f\u0435\u0439<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u0418\u043d\u0436\u0435\u043d\u0435\u0440\u044b-\u0440\u0430\u0434\u0438\u043e\u0442\u0435\u0445\u043d\u0438\u043a\u0438 \u0447\u0430\u0441\u0442\u043e \u0432\u044b\u0431\u0438\u0440\u0430\u044e\u0442 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b, \u0447\u0430\u0441\u0442\u0438\u0447\u043d\u043e \u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u0443\u044f\u0441\u044c \u043d\u0430 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u0430 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u0438 (Dk) \u0432 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445 \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0430\u0445.<\/p><p>\u0423\u043b\u0443\u0447\u0448\u0430\u044e\u0442\u0441\u044f \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0435 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438:<\/p><ul class=\"wp-block-list\"><li>\u0425\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0430\u043d\u0442\u0435\u043d\u043d\u044b<\/li>\n\n<li>\u041a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f \u0444\u0438\u043b\u044c\u0442\u0440\u0430<\/li>\n\n<li>\u0424\u0430\u0437\u043e\u0432\u0430\u044f \u0441\u043e\u0433\u043b\u0430\u0441\u043e\u0432\u0430\u043d\u043d\u043e\u0441\u0442\u044c<\/li>\n\n<li>\u041f\u043e\u0432\u0442\u043e\u0440\u044f\u0435\u043c\u043e\u0441\u0442\u044c \u0420\u0427<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"318\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-1.jpg\" alt=\"\u0417\u043d\u0430\u0447\u0435\u043d\u0438\u044f Dk \u0438 Df\" class=\"wp-image-5934\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-1-300x159.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-1-18x10.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Df_Matters_in_High-Speed_Design\"><\/span>\u041f\u043e\u0447\u0435\u043c\u0443 Df \u0438\u043c\u0435\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u043f\u0440\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0432\u044b\u0441\u043e\u043a\u043e\u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c<span class=\"ez-toc-section-end\"><\/span><\/h2><p>\u041d\u0430 \u043d\u0438\u0437\u043a\u0438\u0445 \u0447\u0430\u0441\u0442\u043e\u0442\u0430\u0445 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043f\u043e\u0442\u0435\u0440\u0438 \u0437\u0430\u0447\u0430\u0441\u0442\u0443\u044e \u043f\u0440\u0435\u043d\u0435\u0431\u0440\u0435\u0436\u0438\u043c\u043e \u043c\u0430\u043b\u044b.<\/p><p>\u041e\u0434\u043d\u0430\u043a\u043e \u043f\u043e \u043c\u0435\u0440\u0435 \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u044f \u0447\u0430\u0441\u0442\u043e\u0442\u044b Df \u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u0441\u044f \u043e\u0434\u043d\u0438\u043c \u0438\u0437 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0445 \u0444\u0430\u043a\u0442\u043e\u0440\u043e\u0432, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u0443\u0447\u0438\u0442\u044b\u0432\u0430\u0442\u044c \u043f\u0440\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Signal_Loss\"><\/span>\u041f\u043e\u0442\u0435\u0440\u044f \u0441\u0438\u0433\u043d\u0430\u043b\u0430.<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u0412\u044b\u0441\u043e\u043a\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Df \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a \u0431\u043e\u043b\u044c\u0448\u0435\u043c\u0443 \u0437\u0430\u0442\u0443\u0445\u0430\u043d\u0438\u044e \u043d\u0430 \u0434\u043b\u0438\u043d\u043d\u044b\u0445 \u0442\u0440\u0430\u0441\u0441\u0430\u0445 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438.<\/p><p>\u042d\u0442\u043e \u043c\u043e\u0436\u0435\u0442 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432:<\/p><ul class=\"wp-block-list\"><li>\u0421\u0435\u0442\u0438 25G<\/li>\n\n<li>\u0421\u0438\u0441\u0442\u0435\u043c\u044b 56G PAM4<\/li>\n\n<li>112G-\u043a\u043e\u043c\u043f\u043e\u0437\u0438\u0442\u043d\u044b\u0435 \u043f\u043b\u0430\u0442\u044b<\/li>\n\n<li>\u0412\u044b\u0441\u043e\u043a\u043e\u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u044b\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Eye_Diagram_Performance\"><\/span>\u0425\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0434\u0438\u0430\u0433\u0440\u0430\u043c\u043c\u044b \u0433\u043b\u0430\u0437<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0441 \u043c\u0435\u043d\u044c\u0448\u0438\u043c\u0438 \u043f\u043e\u0442\u0435\u0440\u044f\u043c\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0441\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u044c \u0431\u043e\u043b\u0435\u0435 \u0447\u0438\u0441\u0442\u044b\u0435 \u0444\u043e\u0440\u043c\u044b \u0441\u0438\u0433\u043d\u0430\u043b\u0430.<\/p><p>\u041f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u0430 \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0442:<\/p><ul class=\"wp-block-list\"><li>\u0421\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u0434\u0436\u0438\u0442\u0442\u0435\u0440\u0430<\/li>\n\n<li>\u041b\u0443\u0447\u0448\u0435 \u043e\u0442\u043a\u0440\u044b\u0442\u044c \u0433\u043b\u0430\u0437\u0430<\/li>\n\n<li>\u0423\u043b\u0443\u0447\u0448\u0435\u043d\u043d\u0430\u044f \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0441\u0438\u0433\u043d\u0430\u043b\u0430<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Longer_Routing_Distances\"><\/span>\u0411\u043e\u043b\u0435\u0435 \u0434\u043b\u0438\u043d\u043d\u044b\u0435 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u044b<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0441 \u043d\u0438\u0437\u043a\u0438\u043c\u0438 \u043f\u043e\u0442\u0435\u0440\u044f\u043c\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c \u043f\u0440\u043e\u043a\u043b\u0430\u0434\u044b\u0432\u0430\u0442\u044c \u0432\u044b\u0441\u043e\u043a\u043e\u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u044b\u0435 \u0441\u0438\u0433\u043d\u0430\u043b\u044b \u043d\u0430 \u0431\u043e\u043b\u044c\u0448\u0438\u0435 \u0440\u0430\u0441\u0441\u0442\u043e\u044f\u043d\u0438\u044f \u0431\u0435\u0437 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0447\u0440\u0435\u0437\u043c\u0435\u0440\u043d\u043e\u0433\u043e \u0432\u044b\u0440\u0430\u0432\u043d\u0438\u0432\u0430\u043d\u0438\u044f.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dk_and_Df_are_frequency-dependent\"><\/span>Dk \u0438 Df \u0437\u0430\u0432\u0438\u0441\u044f\u0442 \u043e\u0442 \u0447\u0430\u0441\u0442\u043e\u0442\u044b<span class=\"ez-toc-section-end\"><\/span><\/h2><p>\u041e\u0434\u043d\u043e\u0439 \u0438\u0437 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043d\u044b\u0445 \u043e\u0448\u0438\u0431\u043e\u043a \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u0435\u0434\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0435, \u0447\u0442\u043e Dk \u0438 Df \u044f\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u0444\u0438\u043a\u0441\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c\u0438 \u0432\u0435\u043b\u0438\u0447\u0438\u043d\u0430\u043c\u0438.<\/p><p>\u041d\u0430 \u0441\u0430\u043c\u043e\u043c \u0434\u0435\u043b\u0435 \u043e\u0431\u0430 \u044d\u0442\u0438\u0445 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430 \u0437\u0430\u0432\u0438\u0441\u044f\u0442 \u043e\u0442:<\/p><ul class=\"wp-block-list\"><li>\u0447\u0430\u0441\u0442\u043e\u0442\u0430<\/li>\n\n<li>\u0422\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0430<\/li>\n\n<li>\u0421\u043e\u0441\u0442\u0430\u0432 \u0441\u043c\u043e\u043b\u044b<\/li>\n\n<li>\u041c\u0435\u0442\u043e\u0434\u0438\u043a\u0430 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f<\/li><\/ul><p>\u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b \u043c\u043e\u0436\u0435\u0442 \u043e\u0431\u043b\u0430\u0434\u0430\u0442\u044c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c\u0438 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430\u043c\u0438:<\/p><ul class=\"wp-block-list\"><li>Dk, \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u043d\u043e\u0435 \u043d\u0430 \u0447\u0430\u0441\u0442\u043e\u0442\u0435 1 \u0413\u0413\u0446<\/li>\n\n<li>Dk, \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u043d\u043e\u0435 \u043d\u0430 \u0447\u0430\u0441\u0442\u043e\u0442\u0435 10 \u0413\u0413\u0446<\/li>\n\n<li>Dk, \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u043d\u043e\u0435 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u043c\u0435\u0442\u043e\u0434\u043e\u0432 \u0438\u0441\u043f\u044b\u0442\u0430\u043d\u0438\u0439<\/li><\/ul><p>\u0418\u043d\u0436\u0435\u043d\u0435\u0440\u044b \u0434\u043e\u043b\u0436\u043d\u044b \u0432\u0441\u0435\u0433\u0434\u0430 \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0442\u044c \u0443\u0441\u043b\u043e\u0432\u0438\u044f \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u044f, \u0443\u043a\u0430\u0437\u0430\u043d\u043d\u044b\u0435 \u0432 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u043f\u0430\u0441\u043f\u043e\u0440\u0442\u0435 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Typical_Material_Categories\"><\/span>\u0422\u0438\u043f\u0438\u0447\u043d\u044b\u0435 \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u0438 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u0432<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Standard_FR4\"><\/span>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0439 FR4<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u041f\u043e\u0434\u0445\u043e\u0434\u0438\u0442 \u0434\u043b\u044f:<\/p><ul class=\"wp-block-list\"><li>\u041f\u043e\u0442\u0440\u0435\u0431\u0438\u0442\u0435\u043b\u044c\u0441\u043a\u0430\u044f \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u0438\u043a\u0430<\/li>\n\n<li>\u041f\u0440\u043e\u0434\u0443\u043a\u0446\u0438\u044f \u0434\u043b\u044f \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/li>\n\n<li>\u041f\u0435\u0447\u0430\u0442\u043d\u044b\u0435 \u043f\u043b\u0430\u0442\u044b \u043e\u0431\u0449\u0435\u0433\u043e \u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f<\/li><\/ul><p>\u041f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u0430:<\/p><ul class=\"wp-block-list\"><li>\u042d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u0430\u044f \u0441 \u0442\u043e\u0447\u043a\u0438 \u0437\u0440\u0435\u043d\u0438\u044f \u0437\u0430\u0442\u0440\u0430\u0442<\/li>\n\n<li>\u0428\u0438\u0440\u043e\u043a\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u0439<\/li>\n\n<li>\u041e\u0442\u043b\u0430\u0436\u0435\u043d\u043d\u044b\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"High_TG_FR4\"><\/span>FR4 \u0441 \u0432\u044b\u0441\u043e\u043a\u0438\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435\u043c \u0422\u0413<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u0427\u0430\u0441\u0442\u043e \u0432\u044b\u0431\u0438\u0440\u0430\u044e\u0442 \u0434\u043b\u044f:<\/p><ul class=\"wp-block-list\"><li>\u0410\u0432\u0442\u043e\u043c\u043e\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u0438\u043a\u0430<\/li>\n\n<li>\u042d\u043d\u0435\u0440\u0433\u0435\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b<\/li>\n\n<li>\u041c\u0430\u0442\u0435\u0440\u0438\u043d\u0441\u043a\u0438\u0435 \u043f\u043b\u0430\u0442\u044b \u0434\u043b\u044f \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432<\/li><\/ul><p>\u041e\u0441\u043d\u043e\u0432\u043d\u044b\u043c \u043f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u043c \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0435 \u0442\u0435\u0440\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043d\u0430\u0434\u0451\u0436\u043d\u043e\u0441\u0442\u0438, \u0430 \u043d\u0435 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043f\u043e\u0442\u0435\u0440\u044c.<\/p><p>\u0411\u043e\u043b\u0435\u0435 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u0443\u044e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044e \u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u0432 <strong><a href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/high-tg-fr4-pcb\/\">\u041f\u0435\u0447\u0430\u0442\u043d\u0430\u044f \u043f\u043b\u0430\u0442\u0430 \u0438\u0437 FR4 \u0441 \u0432\u044b\u0441\u043e\u043a\u0438\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435\u043c TG<\/a><\/strong>.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Low-Loss_Materials\"><\/span>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0441 \u043d\u0438\u0437\u043a\u0438\u043c\u0438 \u043f\u043e\u0442\u0435\u0440\u044f\u043c\u0438<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u041f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043e \u0434\u043b\u044f:<\/p><ul class=\"wp-block-list\"><li>\u0421\u0435\u0442\u0435\u0432\u043e\u0435 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435<\/li>\n\n<li>\u041e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435 \u0434\u043b\u044f \u0446\u0435\u043d\u0442\u0440\u043e\u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0434\u0430\u043d\u043d\u044b\u0445<\/li>\n\n<li>\u0412\u044b\u0447\u0438\u0441\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u043d\u0430 \u0431\u0430\u0437\u0435 \u0438\u0441\u043a\u0443\u0441\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0438\u043d\u0442\u0435\u043b\u043b\u0435\u043a\u0442\u0430<\/li><\/ul><p>\u042d\u0442\u0438 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0442 \u043e\u043f\u0442\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u0431\u0430\u043b\u0430\u043d\u0441 \u043c\u0435\u0436\u0434\u0443 \u0441\u0442\u043e\u0438\u043c\u043e\u0441\u0442\u044c\u044e \u0438 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0430\u043c\u0438 \u0441\u0438\u0433\u043d\u0430\u043b\u0430.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"RF_and_Microwave_Materials\"><\/span>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0434\u043b\u044f \u0440\u0430\u0434\u0438\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u043e\u0433\u043e \u0438 \u043c\u0438\u043a\u0440\u043e\u0432\u043e\u043b\u043d\u043e\u0432\u043e\u0433\u043e \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u043e\u0432<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u041f\u0440\u0438\u043c\u0435\u0440\u044b \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0442:<\/p><ul class=\"wp-block-list\"><li>\u041b\u0430\u043c\u0438\u043d\u0430\u0442 Rogers<\/li>\n\n<li>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u041f\u0422\u0424\u042d<\/li>\n\n<li>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b Taconic<\/li><\/ul><p>\u042d\u0442\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043e\u0442\u043b\u0438\u0447\u0430\u044e\u0442\u0441\u044f \u043e\u0447\u0435\u043d\u044c \u043d\u0438\u0437\u043a\u0438\u043c\u0438 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 \u043f\u043e\u0442\u0435\u0440\u044f\u043c\u0438 \u0438 \u043f\u0440\u0435\u0432\u043e\u0441\u0445\u043e\u0434\u043d\u043e\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u044c\u044e \u043d\u0430 \u0432\u044b\u0441\u043e\u043a\u0438\u0445 \u0447\u0430\u0441\u0442\u043e\u0442\u0430\u0445.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Material_Selection_Considerations\"><\/span>\u0421\u043e\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f \u043f\u043e \u0432\u044b\u0431\u043e\u0440\u0443 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430<span class=\"ez-toc-section-end\"><\/span><\/h2><p>\u041f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u0432 \u0434\u043b\u044f \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u0438 Dk \u0438 Df \u043d\u0435 \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u043e\u0446\u0435\u043d\u0438\u0432\u0430\u0442\u044c \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e \u0434\u0440\u0443\u0433 \u043e\u0442 \u0434\u0440\u0443\u0433\u0430.<\/p><p>\u041a \u0434\u0440\u0443\u0433\u0438\u043c \u0444\u0430\u043a\u0442\u043e\u0440\u0430\u043c \u043e\u0442\u043d\u043e\u0441\u044f\u0442\u0441\u044f:<\/p><ul class=\"wp-block-list\"><li>\u0420\u0430\u0431\u043e\u0447\u0430\u044f \u0447\u0430\u0441\u0442\u043e\u0442\u0430<\/li>\n\n<li>\u0422\u0435\u043f\u043b\u043e\u0432\u044b\u0435 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f<\/li>\n\n<li>\u041f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438<\/li>\n\n<li>\u0426\u0435\u043b\u0435\u0432\u044b\u0435 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u0438 \u0437\u0430\u0442\u0440\u0430\u0442<\/li>\n\n<li>\u041e\u0436\u0438\u0434\u0430\u043d\u0438\u044f \u043d\u0430\u0434\u0435\u0436\u043d\u043e\u0441\u0442\u0438<\/li><\/ul><p>\u041a\u0430\u043a \u043e\u0431\u044a\u044f\u0441\u043d\u044f\u0435\u0442\u0441\u044f \u0432 <strong><a href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/pcb-laminate-materials\/\">\u041e\u0431\u0437\u043e\u0440 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u0432 \u0434\u043b\u044f \u043b\u0430\u043c\u0438\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442<\/a><\/strong>, \u0432\u044b\u0431\u043e\u0440 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430 \u0432\u0441\u0435\u0433\u0434\u0430 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u043a\u043e\u043c\u043f\u0440\u043e\u043c\u0438\u0441\u0441 \u043c\u0435\u0436\u0434\u0443 \u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0430\u043c\u0438 \u0438 \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 \u0441\u043e\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f\u043c\u0438, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u043c\u0438 \u0441 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u043e\u043c.<\/p><p>\u041b\u0443\u0447\u0448\u0438\u0439 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b \u2014 \u044d\u0442\u043e \u043d\u0435 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u043e \u0442\u043e\u0442, \u0443 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0441\u0430\u043c\u043e\u0435 \u043d\u0438\u0437\u043a\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Df. \u042d\u0442\u043e \u0442\u043e\u0442 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c \u043f\u0440\u043e\u0435\u043a\u0442\u0430, \u043f\u0440\u0438 \u044d\u0442\u043e\u043c \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044f \u0440\u0430\u0437\u0443\u043c\u043d\u0443\u044e \u0441\u0442\u043e\u0438\u043c\u043e\u0441\u0442\u044c \u0438 \u043d\u0430\u0434\u0435\u0436\u043d\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Engineering_Misconceptions\"><\/span>\u0420\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043d\u044b\u0435 \u0437\u0430\u0431\u043b\u0443\u0436\u0434\u0435\u043d\u0438\u044f \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0438\u0438<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Lower_Dk_Is_Always_Better\"><\/span>\u0427\u0435\u043c \u043d\u0438\u0436\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Dk, \u0442\u0435\u043c \u043b\u0443\u0447\u0448\u0435<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u041d\u0435 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u043e.<\/p><p>\u041c\u043d\u043e\u0433\u0438\u0435 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 \u043e\u0442\u043b\u0438\u0447\u043d\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0442 \u0441 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430\u043c\u0438 FR4.<\/p><p>\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0441 \u0431\u043e\u043b\u0435\u0435 \u043d\u0438\u0437\u043a\u0438\u043c \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u043e\u043c Dk \u0446\u0435\u043b\u0435\u0441\u043e\u043e\u0431\u0440\u0430\u0437\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0442\u043e\u043b\u044c\u043a\u043e \u0432 \u0442\u0435\u0445 \u0441\u043b\u0443\u0447\u0430\u044f\u0445, \u043a\u043e\u0433\u0434\u0430 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f \u043e\u043f\u0440\u0430\u0432\u0434\u044b\u0432\u0430\u044e\u0442 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0437\u0430\u0442\u0440\u0430\u0442\u044b.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Df_Only_Matters_in_RF_Design\"><\/span>Df \u0438\u043c\u0435\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0440\u0430\u0434\u0438\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u0421\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u044b\u0435 \u0446\u0438\u0444\u0440\u043e\u0432\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0437\u0430\u0447\u0430\u0441\u0442\u0443\u044e \u0441\u0442\u0430\u043b\u043a\u0438\u0432\u0430\u044e\u0442\u0441\u044f \u0441 \u0442\u0435\u043c\u0438 \u0436\u0435 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u043c\u0438 \u043f\u043e\u0442\u0435\u0440\u0438 \u0441\u0438\u0433\u043d\u0430\u043b\u0430, \u0447\u0442\u043e \u0438 \u0440\u0430\u0434\u0438\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0435 \u0441\u0445\u0435\u043c\u044b.<\/p><p>\u0412 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f Df \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0434\u043d\u0438\u043c \u0438\u0437 \u043a\u043b\u044e\u0447\u0435\u0432\u044b\u0445 \u0444\u0430\u043a\u0442\u043e\u0440\u043e\u0432, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u0443\u0447\u0438\u0442\u044b\u0432\u0430\u0442\u044c \u043f\u0440\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043c\u043d\u043e\u0433\u0438\u0445 \u0446\u0438\u0444\u0440\u043e\u0432\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"All_FR4_Materials_Have_the_Same_Dk_and_Df\"><\/span>\u0412\u0441\u0435 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b FR4 \u0438\u043c\u0435\u044e\u0442 \u043e\u0434\u0438\u043d\u0430\u043a\u043e\u0432\u044b\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f Dk \u0438 Df<span class=\"ez-toc-section-end\"><\/span><\/h3><p>\u0412 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u0442 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f \u0438 \u0442\u0438\u043f\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0441\u043c\u043e\u043b \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 \u043c\u043e\u0433\u0443\u0442 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0440\u0430\u0437\u043b\u0438\u0447\u0430\u0442\u044c\u0441\u044f.<\/p><p>\u0412\u0441\u0435\u0433\u0434\u0430 \u043e\u0437\u043d\u0430\u043a\u043e\u043c\u044c\u0442\u0435\u0441\u044c \u0441 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u043c \u043f\u0430\u0441\u043f\u043e\u0440\u0442\u043e\u043c \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u043e\u0433\u043e \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430, \u0430 \u043d\u0435 \u043f\u043e\u043b\u0430\u0433\u0430\u0439\u0442\u0435\u0441\u044c \u043d\u0430 \u043e\u0431\u0449\u0438\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"334\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-2.jpg\" alt=\"\u0417\u043d\u0430\u0447\u0435\u043d\u0438\u044f Dk \u0438 Df\" class=\"wp-image-5935\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-2-300x167.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-2-18x10.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>\u0427\u0410\u0421\u0422\u041e \u0417\u0410\u0414\u0410\u0412\u0410\u0415\u041c\u042b\u0415 \u0412\u041e\u041f\u0420\u041e\u0421\u042b<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1782366823894\"><strong class=\"schema-faq-question\">\u0412\u043e\u043f\u0440\u043e\u0441: \u0427\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 \u0430\u0431\u0431\u0440\u0435\u0432\u0438\u0430\u0442\u0443\u0440\u0430 \u00abDk\u00bb \u043f\u0440\u0438\u043c\u0435\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043a \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430\u043c \u0434\u043b\u044f \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442?<\/strong> <p class=\"schema-faq-answer\">A: Dk \u2014 \u044d\u0442\u043e \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u044c \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430. \u041e\u043d\u0430 \u0432\u043b\u0438\u044f\u0435\u0442 \u043d\u0430 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0441\u0438\u0433\u043d\u0430\u043b\u0430, \u0438\u043c\u043f\u0435\u0434\u0430\u043d\u0441 \u0438 \u0451\u043c\u043a\u043e\u0441\u0442\u044c.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782366885560\"><strong class=\"schema-faq-question\">\u0412\u043e\u043f\u0440\u043e\u0441: \u0427\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 \u0430\u0431\u0431\u0440\u0435\u0432\u0438\u0430\u0442\u0443\u0440\u0430 \u00abDf\u00bb \u043f\u0440\u0438\u043c\u0435\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043a \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430\u043c \u0434\u043b\u044f \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442?<\/strong> <p class=\"schema-faq-answer\">A: Df \u2014 \u044d\u0442\u043e \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0434\u0438\u0441\u0441\u0438\u043f\u0430\u0446\u0438\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0438\u0437\u043c\u0435\u0440\u044f\u0435\u0442 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043f\u043e\u0442\u0435\u0440\u0438 \u0438 \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442, \u043a\u0430\u043a\u0430\u044f \u0434\u043e\u043b\u044f \u044d\u043d\u0435\u0440\u0433\u0438\u0438 \u0441\u0438\u0433\u043d\u0430\u043b\u0430 \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u0443\u0435\u0442\u0441\u044f \u0432 \u0442\u0435\u043f\u043b\u043e.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782366895721\"><strong class=\"schema-faq-question\">\u0412\u043e\u043f\u0440\u043e\u0441: \u0427\u0442\u043e \u0432\u0430\u0436\u043d\u0435\u0435 \u2014 Dk \u0438\u043b\u0438 Df?<\/strong> <p class=\"schema-faq-answer\">A: \u041e\u0431\u0430 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430 \u0432\u0430\u0436\u043d\u044b, \u043d\u043e Df \u0447\u0430\u0441\u0442\u043e \u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u0441\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u044e\u0449\u0438\u043c \u0444\u0430\u043a\u0442\u043e\u0440\u043e\u043c \u0432 \u0432\u044b\u0441\u043e\u043a\u043e\u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u044b\u0445 \u0438 \u0432\u044b\u0441\u043e\u043a\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u043e\u043d \u043d\u0430\u043f\u0440\u044f\u043c\u0443\u044e \u0432\u043b\u0438\u044f\u0435\u0442 \u043d\u0430 \u043f\u043e\u0442\u0435\u0440\u0438 \u0441\u0438\u0433\u043d\u0430\u043b\u0430.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782366907089\"><strong class=\"schema-faq-question\">\u0412\u043e\u043f\u0440\u043e\u0441: \u0418\u043c\u0435\u0435\u0442 \u043b\u0438 FR4 \u0432\u044b\u0441\u043e\u043a\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Df?<\/strong> <p class=\"schema-faq-answer\">A: \u041f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441\u043e \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c\u0438 \u0420\u0427-\u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430\u043c\u0438 FR4 \u0438\u043c\u0435\u0435\u0442 \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0432\u044b\u0441\u043e\u043a\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Df, \u0447\u0442\u043e \u043c\u043e\u0436\u0435\u0442 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u0442\u044c \u0435\u0433\u043e \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u043d\u0430 \u043e\u0447\u0435\u043d\u044c \u0432\u044b\u0441\u043e\u043a\u0438\u0445 \u0447\u0430\u0441\u0442\u043e\u0442\u0430\u0445.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782366959550\"><strong class=\"schema-faq-question\">\u0412\u043e\u043f\u0440\u043e\u0441: \u041f\u043e\u0447\u0435\u043c\u0443 \u0443 \u0420\u0427-\u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u0432 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f Df \u043d\u0438\u0436\u0435?<\/strong> <p class=\"schema-faq-answer\">A: \u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b \u0434\u043b\u044f \u0440\u0430\u0434\u0438\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u043e\u0433\u043e \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u044b \u0441 \u0446\u0435\u043b\u044c\u044e \u043c\u0438\u043d\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043f\u043e\u0442\u0435\u0440\u044c, \u0447\u0442\u043e \u0441\u043f\u043e\u0441\u043e\u0431\u0441\u0442\u0432\u0443\u0435\u0442 \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044e \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430 \u0441\u0438\u0433\u043d\u0430\u043b\u0430 \u043d\u0430 \u0432\u044b\u0441\u043e\u043a\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445 \u043b\u0438\u043d\u0438\u044f\u0445 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438.<\/p> <\/div> <\/div><p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u0414\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u043d\u0438\u0446\u0430\u0435\u043c\u043e\u0441\u0442\u044c (Dk) \u0438 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u043f\u043e\u0442\u0435\u0440\u044c (Df) \u2014 \u0434\u0432\u0430 \u0438\u0437 \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0432\u0430\u0436\u043d\u044b\u0445 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430 \u043f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430 \u0434\u043b\u044f \u043f\u0435\u0447\u0430\u0442\u043d\u044b\u0445 \u043f\u043b\u0430\u0442. \u041e\u043d\u0438 \u0432\u043b\u0438\u044f\u044e\u0442 \u043d\u0430 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0441\u0438\u0433\u043d\u0430\u043b\u0430, \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0438\u043c\u043f\u0435\u0434\u0430\u043d\u0441\u0430, \u0432\u043d\u043e\u0441\u0438\u043c\u044b\u0435 \u043f\u043e\u0442\u0435\u0440\u0438 \u0438 \u043e\u0431\u0449\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0441\u0445\u0435\u043c\u044b. \u041f\u043e\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u0442\u043e\u0433\u043e, \u043a\u0430\u043a Dk \u0438 Df \u0438\u0437\u043c\u0435\u043d\u044f\u044e\u0442\u0441\u044f \u0432 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430\u0445 FR4, \u043b\u0430\u043c\u0438\u043d\u0430\u0442\u0430\u0445 \u0441 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u043e\u0439 \u0441\u0442\u0435\u043a\u043d\u043e\u0432\u0435\u043d\u0438\u044f (TG), \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430\u0445 Rogers, PTFE \u0438 \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441 \u043d\u0438\u0437\u043a\u0438\u043c\u0438 \u043f\u043e\u0442\u0435\u0440\u044f\u043c\u0438, \u043f\u043e\u043c\u043e\u0433\u0430\u0435\u0442 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0430\u043c \u0432\u044b\u0431\u0440\u0430\u0442\u044c \u043f\u043e\u0434\u0445\u043e\u0434\u044f\u0449\u0438\u0439 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b \u0434\u043b\u044f \u0432\u044b\u0441\u043e\u043a\u043e\u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u044b\u0445, \u0440\u0430\u0434\u0438\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445 \u0438 \u0441\u0438\u0441\u0442\u0435\u043c \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0434\u0430\u043d\u043d\u044b\u0445.<\/p>","protected":false},"author":1,"featured_media":5936,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[487,488,484],"class_list":["post-5932","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-df-values","tag-dk-values","tag-pcb-material"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Dk and Df Values in PCB Materials<\/title>\n<meta name=\"description\" content=\"Dk and Df values in PCB materials, how dielectric constant and dissipation factor affect impedance, signal integrity, insertion loss, and high-speed PCB performance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dk and Df Values in PCB Materials\" \/>\n<meta property=\"og:description\" content=\"Dk and Df values in PCB materials, how dielectric constant and dissipation factor affect impedance, signal integrity, insertion loss, and high-speed PCB performance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/\" \/>\n<meta property=\"og:site_name\" content=\"Topfastpcb\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-17T00:47:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-3.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"329\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u6258\u666e\u6cd5\u65af\u7279\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u041d\u0430\u043f\u0438\u0441\u0430\u043d\u043e \u0430\u0432\u0442\u043e\u0440\u043e\u043c\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6258\u666e\u6cd5\u65af\u7279\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u041f\u0440\u0438\u043c\u0435\u0440\u043d\u043e\u0435 \u0432\u0440\u0435\u043c\u044f \u0434\u043b\u044f \u0447\u0442\u0435\u043d\u0438\u044f\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 \u043c\u0438\u043d\u0443\u0442\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/\"},\"author\":{\"name\":\"\u6258\u666e\u6cd5\u65af\u7279\",\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a\"},\"headline\":\"Dk and Df Values in PCB Materials\",\"datePublished\":\"2026-07-17T00:47:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/\"},\"wordCount\":975,\"publisher\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-3.jpg\",\"keywords\":[\"Df Values\",\"Dk Values\",\"PCB Material\"],\"articleSection\":[\"News\"],\"inLanguage\":\"ru-RU\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/\",\"url\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/\",\"name\":\"Dk and Df Values in PCB Materials\",\"isPartOf\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-3.jpg\",\"datePublished\":\"2026-07-17T00:47:00+00:00\",\"description\":\"Dk and Df values in PCB materials, how dielectric constant and dissipation factor affect impedance, signal integrity, insertion loss, and high-speed PCB performance.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#breadcrumb\"},\"mainEntity\":[{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366823894\"},{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366885560\"},{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366895721\"},{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366907089\"},{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366959550\"}],\"inLanguage\":\"ru-RU\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ru-RU\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#primaryimage\",\"url\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-3.jpg\",\"contentUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-3.jpg\",\"width\":600,\"height\":329,\"caption\":\"Dk and Df Values\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.topfastpcb.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Dk and Df Values in PCB Materials\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.topfastpcb.com\/#website\",\"url\":\"https:\/\/www.topfastpcb.com\/\",\"name\":\"Topfastpcb\",\"description\":\"Topfast Prime Choice for Global Electronics Manufacturing\",\"publisher\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.topfastpcb.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ru-RU\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.topfastpcb.com\/#organization\",\"name\":\"Topfastpcb\",\"url\":\"https:\/\/www.topfastpcb.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ru-RU\",\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png\",\"contentUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png\",\"width\":144,\"height\":56,\"caption\":\"Topfastpcb\"},\"image\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a\",\"name\":\"\u6258\u666e\u6cd5\u65af\u7279\",\"sameAs\":[\"http:\/\/www.topfastpcb.com\"],\"url\":\"https:\/\/www.topfastpcb.com\/ru\/blog\/author\/admin\/\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366823894\",\"position\":1,\"url\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366823894\",\"name\":\"Q: What does Dk mean in PCB materials?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: Dk is the dielectric constant of the material. It affects signal speed, impedance, and capacitance.\",\"inLanguage\":\"ru-RU\"},\"inLanguage\":\"ru-RU\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366885560\",\"position\":2,\"url\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366885560\",\"name\":\"Q: What does Df mean in PCB materials?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: Df is the dissipation factor, which measures dielectric loss and indicates how much signal energy is converted into heat.\",\"inLanguage\":\"ru-RU\"},\"inLanguage\":\"ru-RU\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366895721\",\"position\":3,\"url\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366895721\",\"name\":\"Q: Which is more important, Dk or Df?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: Both are important, but Df often becomes the dominant factor in high-speed and high-frequency applications because it directly affects signal loss.\",\"inLanguage\":\"ru-RU\"},\"inLanguage\":\"ru-RU\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366907089\",\"position\":4,\"url\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366907089\",\"name\":\"Q: Does FR4 have a high Df value?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: Compared with specialized RF materials, FR4 has a relatively high Df, which can limit performance at very high frequencies.\",\"inLanguage\":\"ru-RU\"},\"inLanguage\":\"ru-RU\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366959550\",\"position\":5,\"url\":\"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366959550\",\"name\":\"Q: Why do RF materials have lower Df values?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: RF materials are engineered to minimize dielectric loss, helping preserve signal quality across high-frequency transmission paths.\",\"inLanguage\":\"ru-RU\"},\"inLanguage\":\"ru-RU\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Dk and Df Values in PCB Materials","description":"Dk and Df values in PCB materials, how dielectric constant and dissipation factor affect impedance, signal integrity, insertion loss, and high-speed PCB performance.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/","og_locale":"ru_RU","og_type":"article","og_title":"Dk and Df Values in PCB Materials","og_description":"Dk and Df values in PCB materials, how dielectric constant and dissipation factor affect impedance, signal integrity, insertion loss, and high-speed PCB performance.","og_url":"https:\/\/www.topfastpcb.com\/ru\/blog\/dk-and-df-values-in-pcb-materials\/","og_site_name":"Topfastpcb","article_published_time":"2026-07-17T00:47:00+00:00","og_image":[{"width":600,"height":329,"url":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-3.jpg","type":"image\/jpeg"}],"author":"\u6258\u666e\u6cd5\u65af\u7279","twitter_card":"summary_large_image","twitter_misc":{"\u041d\u0430\u043f\u0438\u0441\u0430\u043d\u043e \u0430\u0432\u0442\u043e\u0440\u043e\u043c":"\u6258\u666e\u6cd5\u65af\u7279","\u041f\u0440\u0438\u043c\u0435\u0440\u043d\u043e\u0435 \u0432\u0440\u0435\u043c\u044f \u0434\u043b\u044f \u0447\u0442\u0435\u043d\u0438\u044f":"6 \u043c\u0438\u043d\u0443\u0442"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#article","isPartOf":{"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/"},"author":{"name":"\u6258\u666e\u6cd5\u65af\u7279","@id":"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a"},"headline":"Dk and Df Values in PCB Materials","datePublished":"2026-07-17T00:47:00+00:00","mainEntityOfPage":{"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/"},"wordCount":975,"publisher":{"@id":"https:\/\/www.topfastpcb.com\/#organization"},"image":{"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#primaryimage"},"thumbnailUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-3.jpg","keywords":["Df Values","Dk Values","PCB Material"],"articleSection":["News"],"inLanguage":"ru-RU"},{"@type":["WebPage","FAQPage"],"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/","url":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/","name":"Dk and Df Values in PCB Materials","isPartOf":{"@id":"https:\/\/www.topfastpcb.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#primaryimage"},"image":{"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#primaryimage"},"thumbnailUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-3.jpg","datePublished":"2026-07-17T00:47:00+00:00","description":"Dk and Df values in PCB materials, how dielectric constant and dissipation factor affect impedance, signal integrity, insertion loss, and high-speed PCB performance.","breadcrumb":{"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#breadcrumb"},"mainEntity":[{"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366823894"},{"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366885560"},{"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366895721"},{"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366907089"},{"@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366959550"}],"inLanguage":"ru-RU","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/"]}]},{"@type":"ImageObject","inLanguage":"ru-RU","@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#primaryimage","url":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-3.jpg","contentUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/Dk-and-Df-Values-3.jpg","width":600,"height":329,"caption":"Dk and Df Values"},{"@type":"BreadcrumbList","@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.topfastpcb.com\/"},{"@type":"ListItem","position":2,"name":"Dk and Df Values in PCB Materials"}]},{"@type":"WebSite","@id":"https:\/\/www.topfastpcb.com\/#website","url":"https:\/\/www.topfastpcb.com\/","name":"Topfastpcb","description":"Topfast Prime Choice for Global Electronics Manufacturing","publisher":{"@id":"https:\/\/www.topfastpcb.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.topfastpcb.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ru-RU"},{"@type":"Organization","@id":"https:\/\/www.topfastpcb.com\/#organization","name":"Topfastpcb","url":"https:\/\/www.topfastpcb.com\/","logo":{"@type":"ImageObject","inLanguage":"ru-RU","@id":"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png","contentUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png","width":144,"height":56,"caption":"Topfastpcb"},"image":{"@id":"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a","name":"\u6258\u666e\u6cd5\u65af\u7279","sameAs":["http:\/\/www.topfastpcb.com"],"url":"https:\/\/www.topfastpcb.com\/ru\/blog\/author\/admin\/"},{"@type":"Question","@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366823894","position":1,"url":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366823894","name":"Q: What does Dk mean in PCB materials?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: Dk is the dielectric constant of the material. It affects signal speed, impedance, and capacitance.","inLanguage":"ru-RU"},"inLanguage":"ru-RU"},{"@type":"Question","@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366885560","position":2,"url":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366885560","name":"Q: What does Df mean in PCB materials?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: Df is the dissipation factor, which measures dielectric loss and indicates how much signal energy is converted into heat.","inLanguage":"ru-RU"},"inLanguage":"ru-RU"},{"@type":"Question","@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366895721","position":3,"url":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366895721","name":"Q: Which is more important, Dk or Df?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: Both are important, but Df often becomes the dominant factor in high-speed and high-frequency applications because it directly affects signal loss.","inLanguage":"ru-RU"},"inLanguage":"ru-RU"},{"@type":"Question","@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366907089","position":4,"url":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366907089","name":"Q: Does FR4 have a high Df value?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: Compared with specialized RF materials, FR4 has a relatively high Df, which can limit performance at very high frequencies.","inLanguage":"ru-RU"},"inLanguage":"ru-RU"},{"@type":"Question","@id":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366959550","position":5,"url":"https:\/\/www.topfastpcb.com\/blog\/dk-and-df-values-in-pcb-materials\/#faq-question-1782366959550","name":"Q: Why do RF materials have lower Df values?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: RF materials are engineered to minimize dielectric loss, helping preserve signal quality across high-frequency transmission paths.","inLanguage":"ru-RU"},"inLanguage":"ru-RU"}]}},"_links":{"self":[{"href":"https:\/\/www.topfastpcb.com\/ru\/wp-json\/wp\/v2\/posts\/5932","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.topfastpcb.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.topfastpcb.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/ru\/wp-json\/wp\/v2\/comments?post=5932"}],"version-history":[{"count":1,"href":"https:\/\/www.topfastpcb.com\/ru\/wp-json\/wp\/v2\/posts\/5932\/revisions"}],"predecessor-version":[{"id":5937,"href":"https:\/\/www.topfastpcb.com\/ru\/wp-json\/wp\/v2\/posts\/5932\/revisions\/5937"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/ru\/wp-json\/wp\/v2\/media\/5936"}],"wp:attachment":[{"href":"https:\/\/www.topfastpcb.com\/ru\/wp-json\/wp\/v2\/media?parent=5932"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/ru\/wp-json\/wp\/v2\/categories?post=5932"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/ru\/wp-json\/wp\/v2\/tags?post=5932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}