{"id":3622,"date":"2025-07-14T16:09:52","date_gmt":"2025-07-14T08:09:52","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=3622"},"modified":"2025-07-14T16:13:43","modified_gmt":"2025-07-14T08:13:43","slug":"why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/","title":{"rendered":"\u0644\u0645\u0627\u0630\u0627 \u064a\u062a\u0645 \u062a\u0623\u0631\u064a\u0636 \u0645\u0631\u0643\u0628\u0627\u062a \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0641\u064a\u0646\u064a\u0644 \u0645\u062a\u0639\u062f\u062f \u0627\u0644\u0643\u0644\u0648\u0631 \u0628\u0627\u0644\u0647\u064a\u0643\u0644 \u0627\u0644\u0645\u0639\u062f\u0646\u064a \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0648\u0635\u0644\u0627\u062a \u0633\u0639\u0648\u064a\u0629 \u0645\u0642\u0627\u0648\u0645\u0629\u061f"},"content":{"rendered":"<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\">\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a<\/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\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#1_Core_Objectives_of_RC_Connection\" >1. \u0627\u0644\u0623\u0647\u062f\u0627\u0641 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0644\u0627\u062a\u0635\u0627\u0644 \u0627\u0644\u0645\u0646\u0633\u0642\u064a\u0646 \u0627\u0644\u0645\u0642\u064a\u0645\u064a\u0646<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#11_Electromagnetic_Compatibility_EMC_Requirements\" >1.1 \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a (EMC)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#12_Safety_Protection_Requirements\" >1.2 \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0633\u0644\u0627\u0645\u0629 1.2<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#2_Key_Functions_and_Selection_of_Capacitors\" >2. \u0627\u0644\u0648\u0638\u0627\u0626\u0641 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0648\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0643\u062b\u0641\u0627\u062a \u0648\u0627\u062e\u062a\u064a\u0627\u0631\u0647\u0627<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#21_High-Frequency_Noise_Management\" >2.1 \u0625\u062f\u0627\u0631\u0629 \u0627\u0644\u0636\u0648\u0636\u0627\u0621 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0631\u062f\u062f\u0627\u062a \u0627\u0644\u0639\u0627\u0644\u064a\u0629<\/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\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#22_Hazardous_Voltage_Isolation\" >2.2 \u0639\u0632\u0644 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u062e\u0637\u064a\u0631<\/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\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#3_Resistor_Design_for_Protection_Mechanisms\" >3. \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0645\u0642\u0627\u0648\u0645 \u0644\u0622\u0644\u064a\u0627\u062a \u0627\u0644\u062d\u0645\u0627\u064a\u0629<\/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\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#31_ESD_Protection\" >3.1 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a<\/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\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#32_Current_Limiting_Protection\" >3.2 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0645\u062d\u062f\u0648\u062f\u0629 \u0627\u0644\u062d\u0627\u0644\u064a\u0629<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.topfastpcb.com\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#4_Engineering_Practices_and_Test_Verification\" >4. \u0627\u0644\u0645\u0645\u0627\u0631\u0633\u0627\u062a \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629 \u0648\u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#41_Typical_Connection_Scheme\" >4.1 \u0645\u062e\u0637\u0637 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#42_Key_Test_Items\" >4.2 \u0639\u0646\u0627\u0635\u0631 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.topfastpcb.com\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#5_Industry_Applications_and_Optimization\" >5. \u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u0629 \u0648\u0627\u0644\u062a\u062d\u0633\u064a\u0646<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.topfastpcb.com\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#51_Parameter_Selection_by_Application\" >5.1 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0639\u0644\u0645\u0629 \u062d\u0633\u0628 \u0627\u0644\u062a\u0637\u0628\u064a\u0642<\/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\/ar\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#52_Reliability_Enhancement\" >5.2 \u062a\u0639\u0632\u064a\u0632 \u0627\u0644\u0645\u0648\u062b\u0648\u0642\u064a\u0629<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Core_Objectives_of_RC_Connection\"><\/span>1. \u0627\u0644\u0623\u0647\u062f\u0627\u0641 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0644\u0627\u062a\u0635\u0627\u0644 \u0627\u0644\u0645\u0646\u0633\u0642\u064a\u0646 \u0627\u0644\u0645\u0642\u064a\u0645\u064a\u0646<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"11_Electromagnetic_Compatibility_EMC_Requirements\"><\/span>1.1 \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a (EMC)<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>\u0625\u062e\u0645\u0627\u062f \u0627\u0644\u0636\u0648\u0636\u0627\u0621 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0631\u062f\u062f<\/strong>: \u064a\u0648\u0641\u0631 \u0645\u0633\u0627\u0631\u064b\u0627 \u0645\u0646\u062e\u0641\u0636 \u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0644\u0644\u0636\u0648\u0636\u0627\u0621 \u0641\u0648\u0642 30 \u0645\u064a\u062c\u0627 \u0647\u0631\u062a\u0632 (\u0648\u0638\u064a\u0641\u0629 \u0627\u0644\u0645\u0643\u062b\u0641)<\/li>\n\n<li><strong>\u0639\u0632\u0644 \u0627\u0644\u062a\u0631\u062f\u062f\u0627\u062a \u0627\u0644\u0645\u0646\u062e\u0641\u0636\u0629<\/strong>: \u064a\u062d\u062c\u0628 \u062a\u062f\u0627\u062e\u0644 \u0627\u0644\u0637\u0627\u0642\u0629 50 \u0647\u0631\u062a\u0632 (\u062e\u0627\u0635\u064a\u0629 \u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629)<\/li>\n\n<li><strong>\u0627\u0644\u0645\u0639\u0644\u0645\u0627\u062a \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a\u0629<\/strong>: 1-100nF\/100nF\/Y \u0645\u0643\u062b\u0641 + 1-2M\u03a9 \u0645\u0642\u0627\u0648\u0645<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"12_Safety_Protection_Requirements\"><\/span>1.2 \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0633\u0644\u0627\u0645\u0629 1.2<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a<\/strong>: \u0645\u0642\u0627\u0648\u0645 1M\u03a9 1M\u03a9 \u064a\u0641\u064a \u0628\u0645\u0639\u064a\u0627\u0631 IEC61000-4-2 (\u064a\u0641\u0631\u063a 2 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u062b\u0627\u0628\u062a \u0641\u064a \u226410 \u062b\u0648\u0627\u0646\u064d)<\/li>\n\n<li><strong>\u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0633\u0631\u0628<\/strong>: \u064a\u062d\u062f \u0645\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0625\u0644\u0649 \u22640.1 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 (\u0645\u062a\u0648\u0627\u0641\u0642 \u0645\u0639 UL1950)<\/li><\/ul><p>\u0647\u0644 \u062a\u062d\u062a\u0627\u062c \u0625\u0644\u0649 \u062f\u0639\u0645 \u062a\u0635\u0645\u064a\u0645 EMC \u0627\u062d\u062a\u0631\u0627\u0641\u064a\u061f <a href=\"https:\/\/www.topfastpcb.com\/ar\/contact\/\">\u0627\u0646\u0642\u0631 \u0644\u0627\u0633\u062a\u0634\u0627\u0631\u0629 \u0641\u0631\u064a\u0642 \u062e\u0628\u0631\u0627\u0621 EMC \u0644\u062f\u064a\u0646\u0627<\/a> \u0648\u0627\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u062d\u0644\u0648\u0644 \u0645\u062e\u0635\u0635\u0629.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection.jpg\" alt=\"\u0648\u0635\u0644\u0629 \u0627\u0644\u0645\u0642\u0627\u0648\u0645-\u0627\u0644\u0645\u0643\u062b\u0641\" class=\"wp-image-3624\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Key_Functions_and_Selection_of_Capacitors\"><\/span>2. \u0627\u0644\u0648\u0638\u0627\u0626\u0641 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0648\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0643\u062b\u0641\u0627\u062a \u0648\u0627\u062e\u062a\u064a\u0627\u0631\u0647\u0627<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"21_High-Frequency_Noise_Management\"><\/span>2.1 \u0625\u062f\u0627\u0631\u0629 \u0627\u0644\u0636\u0648\u0636\u0627\u0621 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0631\u062f\u062f\u0627\u062a \u0627\u0644\u0639\u0627\u0644\u064a\u0629<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0643\u062b\u0641 Y-\u0627\u0644\u0645\u0643\u062b\u0641<\/strong>:<\/li>\n\n<li>\u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u0637\u0628\u064a\u0629: \u0625\u0639\u0637\u0627\u0621 \u0627\u0644\u0623\u0648\u0644\u0648\u064a\u0629 \u0644\u0644\u0641\u0626\u0629 Y1 (\u062c\u0647\u062f \u062a\u062d\u0645\u0644 8 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a)<\/li>\n\n<li>\u0627\u0644\u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a\u0627\u062a \u0627\u0644\u0627\u0633\u062a\u0647\u0644\u0627\u0643\u064a\u0629: \u0641\u0626\u0629 Y2 (5 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a) \u0644\u062a\u062d\u0633\u064a\u0646 \u0627\u0644\u0623\u062f\u0627\u0621 \u0645\u0646 \u062d\u064a\u062b \u0627\u0644\u062a\u0643\u0644\u0641\u0629<\/li>\n\n<li><strong>\u062a\u0623\u062b\u064a\u0631 \u0627\u0644\u0633\u0639\u0629<\/strong>:<\/li>\n\n<li>\u0645\u0643\u062b\u0641 1nF 1: ~ 3.2M\u03a9 \u0645\u0642\u0627\u0648\u0645\u0629 \u0639\u0646\u062f 50 \u0647\u0631\u062a\u0632 (\u0639\u0632\u0644 \u0641\u0639\u0627\u0644)<\/li>\n\n<li>\u0645\u0643\u062b\u0641 100nF: 0.016\u03a9 \u062a\u0642\u0631\u064a\u0628\u064b\u0627 \u0645\u0642\u0627\u0648\u0645\u0629 \u0639\u0646\u062f 100 \u0645\u064a\u062c\u0627 \u0647\u0631\u062a\u0632 (\u0645\u0633\u0627\u0631 \u0645\u0646\u062e\u0641\u0636 \u0627\u0644\u0645\u0639\u0627\u0648\u0642\u0629)<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"22_Hazardous_Voltage_Isolation\"><\/span>2.2 \u0639\u0632\u0644 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u062e\u0637\u064a\u0631<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0633\u0644\u0627\u0645\u0629<\/strong>:<\/li>\n\n<li>\u0627\u0644\u0639\u0632\u0644 \u0627\u0644\u0645\u0642\u0648\u0649: \u22652.5 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0645\u0646 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u0642\u0627\u0648\u0645 (IEC62368-1)<\/li>\n\n<li>\u0645\u0633\u0627\u0641\u0629 \u0627\u0644\u0632\u062d\u0641: \u2265 6 \u0645\u0645 (\u0623\u0646\u0638\u0645\u0629 220 \u0641\u0648\u0644\u062a \u062a\u064a\u0627\u0631 \u0645\u062a\u0631\u062f\u062f)<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Resistor_Design_for_Protection_Mechanisms\"><\/span>3. <a href=\"https:\/\/www.topfastpcb.com\/ar\/products\/resistors\/\">\u0627\u0644\u0645\u0642\u0627\u0648\u0645<\/a> \u062a\u0635\u0645\u064a\u0645 \u0622\u0644\u064a\u0627\u062a \u0627\u0644\u062d\u0645\u0627\u064a\u0629<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"31_ESD_Protection\"><\/span>3.1 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a<span class=\"ez-toc-section-end\"><\/span><\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u0627\u0644\u0645\u0639\u0644\u0645\u0629<\/th><th>\u0627\u0644\u0642\u064a\u0645\u0629 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629<\/th><th>\u0645\u0639\u064a\u0627\u0631 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631<\/th><\/tr><\/thead><tbody><tr><td>\u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629<\/td><td>1M\u03a9 \u00b1 5%<\/td><td>IEC61000-4-2<\/td><\/tr><tr><td>\u0648\u0642\u062a \u0627\u0644\u062a\u0641\u0631\u064a\u063a<\/td><td>\u226410 \u062b\u0648\u0627\u0646\u064d<\/td><td>\u062a\u0641\u0631\u064a\u063a \u062a\u0644\u0627\u0645\u0633 2 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a<\/td><\/tr><tr><td>\u0645\u0639\u0627\u0645\u0644 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629<\/td><td>\u226450 \u062c\u0632\u0621 \u0641\u064a \u0627\u0644\u0645\u0644\u064a\u0648\u0646\/\u2103<\/td><td>JEDEC JESD22<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"32_Current_Limiting_Protection\"><\/span>3.2 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0645\u062d\u062f\u0648\u062f\u0629 \u0627\u0644\u062d\u0627\u0644\u064a\u0629<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>\u0639\u0646\u062f\u0645\u0627 \u064a\u0643\u0648\u0646 \u0644\u0644\u0647\u064a\u0643\u0644 1 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0633\u0627\u0643\u0646:<\/li>\n\n<li>\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 \u0627\u0644\u0645\u0628\u0627\u0634\u0631: \u0646\u0638\u0631\u064a\u0627\u064b \u221e (\u062e\u0637\u064a\u0631)<\/li>\n\n<li>\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0642\u0627\u0648\u0645 1M\u03a9: 1 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 (\u0627\u0644\u0646\u0637\u0627\u0642 \u0627\u0644\u0622\u0645\u0646)<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection-1.jpg\" alt=\"\u0648\u0635\u0644\u0629 \u0627\u0644\u0645\u0642\u0627\u0648\u0645-\u0627\u0644\u0645\u0643\u062b\u0641\" class=\"wp-image-3625\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection-1-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Engineering_Practices_and_Test_Verification\"><\/span>4. \u0627\u0644\u0645\u0645\u0627\u0631\u0633\u0627\u062a \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629 \u0648\u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"41_Typical_Connection_Scheme\"><\/span>4.1 \u0645\u062e\u0637\u0637 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a<span class=\"ez-toc-section-end\"><\/span><\/h3><pre class=\"wp-block-code\"><code>pcb_gnd \u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500 1m\u03c9 \u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500 egnd\n             \u2502 \u2502\n             \u7b80 \u2500\u2500 100nF\/Y2\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2518  <\/code><\/pre><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"42_Key_Test_Items\"><\/span>4.2 \u0639\u0646\u0627\u0635\u0631 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<span class=\"ez-toc-section-end\"><\/span><\/h3><ol class=\"wp-block-list\"><li><strong>\u0627\u062e\u062a\u0628\u0627\u0631 \u062c\u0647\u062f \u0627\u0644\u062a\u062d\u0645\u0644<\/strong>: 3 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u062a\u064a\u0627\u0631 \u0645\u062a\u0631\u062f\u062f\/60 \u062b\u0627\u0646\u064a\u0629 (\u0628\u064a\u0646 GND \u0648EGND)<\/li>\n\n<li><strong>\u0627\u0644\u0627\u0646\u0628\u0639\u0627\u062b\u0627\u062a \u0627\u0644\u0645\u0634\u0639\u0629<\/strong>: \u0646\u0637\u0627\u0642 30 \u0645\u064a\u062c\u0627 \u0647\u0631\u062a\u0632 - 1 \u062c\u064a\u062c\u0627 \u0647\u0631\u062a\u0632 (\u064a\u062c\u0628 \u0623\u0646 \u064a\u0643\u0648\u0646 \u0623\u0642\u0644 \u0645\u0646 30 \u062f\u064a\u0633\u064a\u0628\u0644 \u0645\u064a\u0643\u0631\u0648\u0641\u0648\u0644\u062a\/\u0645)<\/li>\n\n<li><strong>\u0627\u062e\u062a\u0628\u0627\u0631 ESD<\/strong>:: \u062a\u0641\u0631\u064a\u063a \u062a\u0644\u0627\u0645\u0633 \u00b1 8 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a (\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0641\u0626\u0629 A)<\/li><\/ol><p><strong>\u0639\u0631\u0636 \u0645\u062d\u062f\u0648\u062f<\/strong>:\u00a0\u00a0<a href=\"https:\/\/www.topfastpcb.com\/ar\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0627\u062a\u0635\u0644 \u0628\u0627\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646<\/a><\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Industry_Applications_and_Optimization\"><\/span>5. \u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u0629 \u0648\u0627\u0644\u062a\u062d\u0633\u064a\u0646<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"51_Parameter_Selection_by_Application\"><\/span>5.1 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0639\u0644\u0645\u0629 \u062d\u0633\u0628 \u0627\u0644\u062a\u0637\u0628\u064a\u0642<span class=\"ez-toc-section-end\"><\/span><\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u0627\u0644\u062a\u0637\u0628\u064a\u0642<\/th><th>\u0646\u0648\u0639 \u0627\u0644\u0645\u0643\u062b\u0641<\/th><th>\u0642\u064a\u0645\u0629 \u0627\u0644\u0645\u0642\u0627\u0648\u0645<\/th><th>\u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u062e\u0627\u0635\u0629<\/th><\/tr><\/thead><tbody><tr><td>\u0627\u0644\u0637\u0628 \u0627\u0644\u0628\u0627\u0637\u0646\u064a<\/td><td>Y1\/10nF<\/td><td>2M\u03a9<\/td><td>\u0627\u0644\u062a\u0648\u0627\u0641\u0642 \u0645\u0639 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0629 IEC60601-1<\/td><\/tr><tr><td>\u0635\u0646\u0627\u0639\u064a<\/td><td>Y2\/47nF<\/td><td>1M\u03a9<\/td><td>\u062d\u0645\u0627\u064a\u0629 \u0645\u0639\u0632\u0632\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a<\/td><\/tr><tr><td>\u0627\u0644\u0645\u0633\u062a\u0647\u0644\u0643<\/td><td>X7R7R\/1nF<\/td><td>1.2M\u03a9<\/td><td>\u0627\u0644\u062a\u0643\u0644\u0641\u0629 \u0627\u0644\u0645\u062d\u0633\u0651\u0646\u0629<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"52_Reliability_Enhancement\"><\/span>5.2 \u062a\u0639\u0632\u064a\u0632 \u0627\u0644\u0645\u0648\u062b\u0648\u0642\u064a\u0629<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>\u062d\u0644 \u0645\u062a\u0642\u062f\u0645<\/strong>: \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u062b\u0646\u0627\u0626\u064a TVS \u0627\u0644\u0645\u062a\u0648\u0627\u0632\u064a (\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c SMBJ15CA)<\/li>\n\n<li><strong>\u062a\u062d\u0633\u064a\u0646 \u0627\u0644\u062a\u062e\u0637\u064a\u0637<\/strong>: \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062d\u0632\u0645\u0629 0201 \u0644\u062a\u0648\u0641\u064a\u0631 \u0645\u0633\u0627\u062d\u0629 30% PCB<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection-2.jpg\" alt=\"\u0648\u0635\u0644\u0629 \u0627\u0644\u0645\u0642\u0627\u0648\u0645-\u0627\u0644\u0645\u0643\u062b\u0641\" class=\"wp-image-3626\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/resistor-capacitor-connection-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><p>\u062a\u062d\u0642\u0642 \u0648\u0635\u0644\u0629 \u0627\u0644\u0645\u0642\u0627\u0648\u0645-\u0627\u0644\u0645\u0643\u062b\u0641 \u062a\u0648\u0627\u0632\u0646\u0627\u064b \u0628\u064a\u0646 \u0639\u0632\u0644 \u0627\u0644\u0633\u0644\u0627\u0645\u0629 \u0648\u0623\u062f\u0627\u0621 \u0627\u0644\u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a (EMC) \u0645\u0646 \u062e\u0644\u0627\u0644 \u062a\u0635\u0645\u064a\u0645 \u062f\u0642\u064a\u0642 \u0644\u0644\u0645\u0639\u0644\u0645\u0627\u062a (1M\u03a9+100nF \u0647\u0648 \u0627\u0644\u062a\u0631\u0643\u064a\u0628\u0629 \u0627\u0644\u0645\u062b\u0644\u0649). \u0641\u064a \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0641\u0639\u0644\u064a\u060c \u0645\u0646 \u0627\u0644\u0636\u0631\u0648\u0631\u064a \u0627\u0644\u062a\u062d\u0633\u064a\u0646 \u0627\u0644\u0634\u0627\u0645\u0644 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0633\u0644\u0627\u0645\u0629 (\u0645\u062b\u0644 IEC62368) \u0648\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0648\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u062a\u0643\u0644\u0641\u0629. \u0648\u0642\u062f \u0623\u0635\u0628\u062d \u0647\u0630\u0627 \u0627\u0644\u062d\u0644 \u0645\u0645\u0627\u0631\u0633\u0629 \u0642\u064a\u0627\u0633\u064a\u0629 \u0641\u064a \u0645\u062c\u0627\u0644\u0627\u062a \u0645\u062b\u0644 \u0627\u0644\u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a\u0627\u062a \u0627\u0644\u0627\u0633\u062a\u0647\u0644\u0627\u0643\u064a\u0629 \u0648\u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u0637\u0628\u064a\u0629.<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u064a\u062a\u0645 \u062a\u0648\u0635\u064a\u0644 \u0623\u0631\u0636\u064a\u0629 \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0641\u064a\u0646\u064a\u0644 \u0645\u062a\u0639\u062f\u062f \u0627\u0644\u0643\u0644\u0648\u0631 (GND) \u0648\u0627\u0644\u0647\u064a\u0643\u0644 \u0627\u0644\u0645\u0639\u062f\u0646\u064a (EGND) \u0639\u0628\u0631 \u0645\u062c\u0645\u0648\u0639\u0629 \u0645\u0642\u0627\u0648\u0645-\u0645\u0643\u062b\u0641 (\u0639\u0627\u062f\u0629\u064b \u0645\u0642\u0627\u0648\u0645 1M\u03a9 \u0628\u0627\u0644\u062a\u0648\u0627\u0632\u064a \u0645\u0639 \u0645\u0643\u062b\u0641 1-100nF) \u0644\u0645\u0646\u0639 \u0627\u0644\u0636\u0648\u0636\u0627\u0621 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0631\u062f\u062f\u060c \u0648\u062a\u0648\u0641\u064a\u0631 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0633\u062a\u0627\u062a\u064a\u0643\u064a\u0629\u060c \u0648\u0639\u0632\u0644 \u062a\u0631\u062f\u062f\u0627\u062a \u0627\u0644\u0637\u0627\u0642\u0629\u060c \u0648\u062a\u062d\u0633\u064a\u0646 \u0627\u0644\u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a EMC.<\/p>","protected":false},"author":1,"featured_media":3623,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[109],"tags":[196],"class_list":["post-3622","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","tag-resistor"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Why are PCBs grounded to metal chassis using resistive capacitive connections? - Topfastpcb<\/title>\n<meta name=\"description\" content=\"The PCB 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