{"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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/","title":{"rendered":"PCB'ler neden diren\u00e7li kapasitif ba\u011flant\u0131lar kullan\u0131larak metal \u015fasiye topraklan\u0131r?"},"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\">\u0130\u00e7indekiler<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#1_Core_Objectives_of_RC_Connection\" >1. RC Ba\u011flant\u0131s\u0131n\u0131n Temel Hedefleri<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#11_Electromagnetic_Compatibility_EMC_Requirements\" >1.1 Elektromanyetik Uyumluluk (EMC) Gereklilikleri<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#12_Safety_Protection_Requirements\" >1.2 G\u00fcvenlik Koruma Gereklilikleri<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#2_Key_Functions_and_Selection_of_Capacitors\" >2. Kondansat\u00f6rlerin Temel \u0130\u015flevleri ve Se\u00e7imi<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#21_High-Frequency_Noise_Management\" >2.1 Y\u00fcksek Frekansl\u0131 G\u00fcr\u00fclt\u00fc Y\u00f6netimi<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#22_Hazardous_Voltage_Isolation\" >2.2 Tehlikeli Gerilim \u0130zolasyonu<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#3_Resistor_Design_for_Protection_Mechanisms\" >3. Koruma Mekanizmalar\u0131 i\u00e7in Diren\u00e7 Tasar\u0131m\u0131<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#31_ESD_Protection\" >3.1 ESD Korumas\u0131<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#32_Current_Limiting_Protection\" >3.2 Ak\u0131m S\u0131n\u0131rlama Korumas\u0131<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#4_Engineering_Practices_and_Test_Verification\" >4. M\u00fchendislik Uygulamalar\u0131 ve Test Do\u011frulamas\u0131<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#41_Typical_Connection_Scheme\" >4.1 Tipik Ba\u011flant\u0131 \u015eemas\u0131<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#42_Key_Test_Items\" >4.2 Anahtar Test \u00d6\u011feleri<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#5_Industry_Applications_and_Optimization\" >5. End\u00fcstri Uygulamalar\u0131 ve Optimizasyon<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#51_Parameter_Selection_by_Application\" >5.1 Uygulamaya G\u00f6re Parametre Se\u00e7imi<\/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\/tr\/blog\/why-are-pcbs-grounded-to-metal-chassis-using-resistive-capacitive-connections\/#52_Reliability_Enhancement\" >5.2 G\u00fcvenilirli\u011fin Art\u0131r\u0131lmas\u0131<\/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. RC Ba\u011flant\u0131s\u0131n\u0131n Temel Hedefleri<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 Elektromanyetik Uyumluluk (EMC) Gereklilikleri<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Y\u00fcksek frekansl\u0131 g\u00fcr\u00fclt\u00fc bast\u0131rma<\/strong>: 30MHz'in \u00fczerindeki g\u00fcr\u00fclt\u00fc i\u00e7in d\u00fc\u015f\u00fck empedansl\u0131 bir yol sa\u011flar (kapasit\u00f6r i\u015flevi)<\/li>\n\n<li><strong>D\u00fc\u015f\u00fck frekans izolasyonu<\/strong>: 50Hz g\u00fc\u00e7 parazitini engeller (y\u00fcksek diren\u00e7 karakteristi\u011fi)<\/li>\n\n<li><strong>Tipik parametreler<\/strong>: 1-100nF\/Y-kapasit\u00f6r + 1-2M\u03a9 diren\u00e7<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"12_Safety_Protection_Requirements\"><\/span>1.2 G\u00fcvenlik Koruma Gereklilikleri<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>ESD de\u015farj\u0131<\/strong>: 1M\u03a9 diren\u00e7 IEC61000-4-2 standard\u0131n\u0131 kar\u015f\u0131lar (\u226410 saniyede 2kV statik bo\u015falt\u0131r)<\/li>\n\n<li><strong>Ka\u00e7ak ak\u0131m kontrol\u00fc<\/strong>: Ak\u0131m\u0131 \u22640,1mA ile s\u0131n\u0131rlar (UL1950 ile uyumlu)<\/li><\/ul><p>Profesyonel EMC tasar\u0131m deste\u011fine mi ihtiyac\u0131n\u0131z var? <a href=\"https:\/\/www.topfastpcb.com\/tr\/contact\/\">EMC uzman ekibimize dan\u0131\u015fmak i\u00e7in t\u0131klay\u0131n<\/a> ve \u00f6zelle\u015ftirilmi\u015f \u00e7\u00f6z\u00fcmler elde edin.<\/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=\"diren\u00e7-kapasit\u00f6r ba\u011flant\u0131s\u0131\" 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. Kondansat\u00f6rlerin Temel \u0130\u015flevleri ve Se\u00e7imi<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 Y\u00fcksek Frekansl\u0131 G\u00fcr\u00fclt\u00fc Y\u00f6netimi<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Y-kapasit\u00f6r se\u00e7imi<\/strong>:<\/li>\n\n<li>T\u0131bbi cihazlar: Y1 s\u0131n\u0131f\u0131na \u00f6ncelik verin (8kV dayanma gerilimi)<\/li>\n\n<li>T\u00fcketici elektroni\u011fi: Daha iyi maliyet-performans i\u00e7in Y2 s\u0131n\u0131f\u0131 (5kV)<\/li>\n\n<li><strong>Kapasitans etkisi<\/strong>:<\/li>\n\n<li>1nF kondansat\u00f6r: 50Hz'de ~3,2M\u03a9 empedans (etkin izolasyon)<\/li>\n\n<li>100nF kapasit\u00f6r: 100MHz'de ~0,016\u03a9 empedans (d\u00fc\u015f\u00fck empedansl\u0131 yol)<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"22_Hazardous_Voltage_Isolation\"><\/span>2.2 Tehlikeli Gerilim \u0130zolasyonu<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>G\u00fcvenlik standartlar\u0131<\/strong>:<\/li>\n\n<li>G\u00fc\u00e7lendirilmi\u015f yal\u0131t\u0131m: \u22652,5kV dayan\u0131m gerilimi (IEC62368-1)<\/li>\n\n<li>Ka\u00e7ak mesafesi: \u22656mm (220VAC sistemler)<\/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\/tr\/products\/resistors\/\">Diren\u00e7<\/a> Koruma Mekanizmalar\u0131 i\u00e7in Tasar\u0131m<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 ESD Korumas\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Parametre<\/th><th>Standart De\u011fer<\/th><th>Test Standard\u0131<\/th><\/tr><\/thead><tbody><tr><td>Diren\u00e7<\/td><td>1M\u03a9\u00b15%<\/td><td>IEC61000-4-2<\/td><\/tr><tr><td>De\u015farj S\u00fcresi<\/td><td>\u226410 saniye<\/td><td>2kV kontak de\u015farj\u0131<\/td><\/tr><tr><td>S\u0131cakl\u0131k Katsay\u0131s\u0131<\/td><td>\u226450ppm\/\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 Ak\u0131m S\u0131n\u0131rlama Korumas\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>\u015easide 1kV statik oldu\u011funda:<\/li>\n\n<li>Do\u011frudan ba\u011flant\u0131 ak\u0131m\u0131: Teorik \u221e (tehlikeli)<\/li>\n\n<li>1M\u03a9 diren\u00e7 ak\u0131m\u0131: 1mA (g\u00fcvenli aral\u0131k)<\/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=\"diren\u00e7-kapasit\u00f6r ba\u011flant\u0131s\u0131\" 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. M\u00fchendislik Uygulamalar\u0131 ve Test Do\u011frulamas\u0131<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 Tipik Ba\u011flant\u0131 \u015eemas\u0131<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\u03a9 \u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500 EGND\n             \u2502 \u2502\n             \u2514\u2500\u2500 100nF\/Y2 \u2500\u2500\u2500\u2518  <\/code><\/pre><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"42_Key_Test_Items\"><\/span>4.2 Anahtar Test \u00d6\u011feleri<span class=\"ez-toc-section-end\"><\/span><\/h3><ol class=\"wp-block-list\"><li><strong>Dayan\u0131m Gerilimi Testi<\/strong>: 3kVAC\/60s (GND ve EGND aras\u0131nda)<\/li>\n\n<li><strong>Yay\u0131lan Emisyon<\/strong>: 30MHz-1GHz band\u0131 (&lt;30dB\u03bcV\/m olmal\u0131d\u0131r)<\/li>\n\n<li><strong>ESD Testi<\/strong>: \u00b18kV kontak de\u015farj\u0131 (S\u0131n\u0131f A kriterleri)<\/li><\/ol><p><strong>S\u0131n\u0131rl\u0131 Teklif<\/strong>:\u00a0\u00a0<a href=\"https:\/\/www.topfastpcb.com\/tr\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0130leti\u015fim M\u00fchendisleri<\/a><\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Industry_Applications_and_Optimization\"><\/span>5. End\u00fcstri Uygulamalar\u0131 ve Optimizasyon<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 Uygulamaya G\u00f6re Parametre Se\u00e7imi<span class=\"ez-toc-section-end\"><\/span><\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Uygulama<\/th><th>Kondansat\u00f6r Tipi<\/th><th>Diren\u00e7 De\u011feri<\/th><th>\u00d6zel Gereksinimler<\/th><\/tr><\/thead><tbody><tr><td>T\u0131bbi<\/td><td>Y1\/10nF<\/td><td>2M\u03a9<\/td><td>IEC60601-1 uyumlulu\u011fu<\/td><\/tr><tr><td>End\u00fcstriyel<\/td><td>Y2\/47nF<\/td><td>1M\u03a9<\/td><td>Geli\u015ftirilmi\u015f a\u015f\u0131r\u0131 gerilim korumas\u0131<\/td><\/tr><tr><td>T\u00fcketici<\/td><td>X7R\/1nF<\/td><td>1.2M\u03a9<\/td><td>Maliyet a\u00e7\u0131s\u0131ndan optimize edilmi\u015f<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"52_Reliability_Enhancement\"><\/span>5.2 G\u00fcvenilirli\u011fin Art\u0131r\u0131lmas\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Geli\u015fmi\u015f \u00e7\u00f6z\u00fcm<\/strong>: Paralel TVS diyot (\u00f6rn. SMBJ15CA)<\/li>\n\n<li><strong>Yerle\u015fim optimizasyonu<\/strong>: 30% PCB alan\u0131ndan tasarruf etmek i\u00e7in 0201 paketini kullan\u0131n<\/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=\"diren\u00e7-kapasit\u00f6r ba\u011flant\u0131s\u0131\" 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>Diren\u00e7-kapasit\u00f6r ba\u011flant\u0131s\u0131, hassas parametre tasar\u0131m\u0131 yoluyla g\u00fcvenlik izolasyonu ve EMC performans\u0131 aras\u0131nda bir denge sa\u011flar (1M\u03a9+100nF en uygun kombinasyondur). Ger\u00e7ek tasar\u0131mda, g\u00fcvenlik standartlar\u0131na (IEC62368 gibi), test verilerine ve maliyet fakt\u00f6rlerine dayal\u0131 olarak kapsaml\u0131 bir \u015fekilde optimize etmek gerekir. Bu \u00e7\u00f6z\u00fcm, t\u00fcketici elektroni\u011fi ve t\u0131bbi ekipman gibi alanlarda standart bir uygulama haline gelmi\u015ftir.<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>PCB topra\u011f\u0131 (GND) ve metal \u015fasi (EGND), y\u00fcksek frekansl\u0131 g\u00fcr\u00fclt\u00fcy\u00fc bast\u0131rmak, elektrostatik koruma sa\u011flamak, g\u00fc\u00e7 frekanslar\u0131n\u0131 izole etmek ve EMC'yi optimize etmek i\u00e7in bir diren\u00e7-kapasit\u00f6r kombinasyonu (tipik olarak 1-100nF kapasit\u00f6r ile paralel 1M\u03a9 diren\u00e7) arac\u0131l\u0131\u011f\u0131yla ba\u011flan\u0131r.<\/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? 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