{"id":6653,"date":"2025-05-16T11:44:58","date_gmt":"2025-05-16T03:44:58","guid":{"rendered":"https:\/\/topfastpcba.com\/?p=6653"},"modified":"2025-10-22T17:09:52","modified_gmt":"2025-10-22T09:09:52","slug":"4-pin-vs-5-pin-relay-depth-technology-comparison","status":"publish","type":"post","link":"https:\/\/topfastpcba.com\/fr\/4-pin-vs-5-pin-relay-depth-technology-comparison\/","title":{"rendered":"Comparaison des technologies de profondeur de relais \u00e0 4 broches et \u00e0 5 broches"},"content":{"rendered":"<h2>1 Diff\u00e9rence entre les d\u00e9finitions des relais \u00e0 quatre et \u00e0 cinq broches<\/h2>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 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\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/topfastpcba.com\/fr\/4-pin-vs-5-pin-relay-depth-technology-comparison\/#What_is_a_4-pin_relay\" >Qu'est-ce qu'un relais \u00e0 4 broches ?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/topfastpcba.com\/fr\/4-pin-vs-5-pin-relay-depth-technology-comparison\/#2_Structural_Design_and_Functional_Differences\" >2. Conception structurelle et diff\u00e9rences fonctionnelles<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topfastpcba.com\/fr\/4-pin-vs-5-pin-relay-depth-technology-comparison\/#3_Electrical_Parameters_and_Reliability_Comparison\" >3.Comparaison des param\u00e8tres \u00e9lectriques et de la fiabilit\u00e9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topfastpcba.com\/fr\/4-pin-vs-5-pin-relay-depth-technology-comparison\/#4_Application_Scenario_Analysis\" >4.Analyse des sc\u00e9narios d'application<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/topfastpcba.com\/fr\/4-pin-vs-5-pin-relay-depth-technology-comparison\/#5_Selection_Decision_Flowchart\" >5.Diagramme de d\u00e9cision de s\u00e9lection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/topfastpcba.com\/fr\/4-pin-vs-5-pin-relay-depth-technology-comparison\/#6_Design_Risk_Mitigation\" >6.Att\u00e9nuation des risques de conception<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/topfastpcba.com\/fr\/4-pin-vs-5-pin-relay-depth-technology-comparison\/#7_Technology_Trends\" >7.Tendances technologiques<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_4-pin_relay\"><\/span>Qu'est-ce qu'un relais \u00e0 4 broches ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Le relais \u00e0 quatre broches est un relais \u00e9lectromagn\u00e9tique de type unipolaire, unidirectionnel (SPST) qui se compose de deux parties : un syst\u00e8me de commande de la bobine et un syst\u00e8me de contact.Le relais utilise une configuration de broches standard : 85 et 86 sont les bornes de commande de la bobine et 30 et 87 sont les bornes de contact. Lorsque la tension nominale est appliqu\u00e9e \u00e0 la borne de la bobine, le m\u00e9canisme \u00e9lectromagn\u00e9tique fonctionne pour fermer les contacts mobiles et statiques, et les broches 30 et 87 sont connect\u00e9es pour former un circuit. Apr\u00e8s une coupure de courant, le m\u00e9canisme de r\u00e9armement \u00e0 ressort r\u00e9tablit automatiquement l'\u00e9tat normalement ouvert, ce qui permet une coupure rapide du circuit.<\/p>\n\n\n\n<h3><a href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/\">Qu'est-ce qu'un relais \u00e0 5 broches ?<\/a>?<\/h3>\n\n\n\n<p>Le relais \u00e0 cinq broches est un relais \u00e9lectromagn\u00e9tique de type unipolaire, double effet (SPDT) qui permet la commutation bidirectionnelle du circuit gr\u00e2ce \u00e0 l'action synergique des bornes de commande de la bobine (85, 86) et des bornes de contact (30, 87, 87a).<br>Par rapport aux relais \u00e0 quatre broches, les relais \u00e0 cinq broches peuvent r\u00e9pondre \u00e0 des besoins de contr\u00f4le plus complexes gr\u00e2ce \u00e0 leur capacit\u00e9 de commutation \u00e0 double circuit et \u00e0 leurs caract\u00e9ristiques de retour d'\u00e9tat, et sont largement utilis\u00e9s dans les syst\u00e8mes \u00e9lectriques n\u00e9cessitant une commutation multi-\u00e9tats ou une protection contre les d\u00e9fauts.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Structural_Design_and_Functional_Differences\"><\/span><strong>2. Conception structurelle et diff\u00e9rences fonctionnelles<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>1. Relais \u00e0 4 broches (type SPST)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structure de base<\/strong>:<\/li>\n\n\n\n<li>Bornes de la bobine : 85\/86 (Tension d'entra\u00eenement standard : 5-48VDC)<\/li>\n\n\n\n<li>Bornes de contact :30 (commun) &amp;#8211 ; 87 (normalement ouvert, NO)<\/li>\n\n\n\n<li><strong>Caract\u00e9ristiques op\u00e9rationnelles<\/strong>:<\/li>\n\n\n\n<li>\u00c9tat par d\u00e9faut : 30-87 circuit ouvert<\/li>\n\n\n\n<li>\u00c9tat activ\u00e9 :30-87 ferm\u00e9 (commutation \u00e0 une voie)<\/li>\n\n\n\n<li><strong>Caract\u00e9ristiques de la conception<\/strong>: Pas de r\u00e9tention d'\u00e9tat, commutation pure \u00e0 deux \u00e9tats<\/li>\n<\/ul>\n\n\n\n<p><strong>2.Relais \u00e0 5 broches (type SPDT)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structure de base<\/strong>:<\/li>\n\n\n\n<li>Bornes de la bobine :85\/86 (compatible avec la tension d'entra\u00eenement \u00e0 4 broches)<\/li>\n\n\n\n<li>Bornes de contact :30 (commun) &amp;#8211 ; 87 (NO) &amp;#8211 ; 87a (normalement ferm\u00e9, NC)<\/li>\n\n\n\n<li><strong>Caract\u00e9ristiques op\u00e9rationnelles<\/strong>:<\/li>\n\n\n\n<li>\u00c9tat par d\u00e9faut :30-87a ferm\u00e9, 30-87 ouvert<\/li>\n\n\n\n<li>\u00c9tat d'excitation :30-87 ferm\u00e9, 30-87a ouvert<\/li>\n\n\n\n<li><strong>Caract\u00e9ristiques de la conception<\/strong>:Commutation \u00e0 trois bornes avec m\u00e9moire d'\u00e9tat<\/li>\n<\/ul>\n\n\n\n<p>\u25b6 <strong>Principale diff\u00e9rence<\/strong>: La borne 87a permet un fonctionnement de type \"rupture avant fabrication\" (temps de commutation typique &lt;3ms), \u00e9vitant les courts-circuits transitoires lors de la commutation.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-5.jpg\" alt=\"Comparaison des technologies de profondeur de relais \u00e0 4 broches et \u00e0 5 broches\" class=\"wp-image-6655\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-5.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-5-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-5-150x101.jpg 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Electrical_Parameters_and_Reliability_Comparison\"><\/span><strong>3.Comparaison des param\u00e8tres \u00e9lectriques et de la fiabilit\u00e9<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Param\u00e8tres<\/strong><\/th><th><strong>Relais \u00e0 4 broches<\/strong><\/th><th><strong>Relais \u00e0 5 broches<\/strong><\/th><\/tr><\/thead><tbody><tr><td>Cote de contact<\/td><td>\u226440A (resistive load)<\/td><td>\u226430A (per contact)<\/td><\/tr><tr><td>Tension d'isolement<\/td><td>1,5kV (contact bobine)<\/td><td>3kV (contact bobine)<\/td><\/tr><tr><td>R\u00e9sistance des contacts<\/td><td>20m\u03a9 (silver alloy)<\/td><td>35m\u03a9 (dual-path)<\/td><\/tr><tr><td>Dur\u00e9e de vie m\u00e9canique<\/td><td>10^6 cycles (@10A)<\/td><td>5\u00d710^5 cycles (@10A)<\/td><\/tr><tr><td>Fr\u00e9quence de fonctionnement<\/td><td>\u22640.5Hz<\/td><td>\u22642Hz<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Aper\u00e7u des donn\u00e9es<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La 4-pin excelle en <strong>cycle \u00e0 forte charge<\/strong> (par exemple, contr\u00f4le des moteurs industriels)<\/li>\n\n\n\n<li>Les 5 broches dominent <strong>commutation \u00e0 haute fr\u00e9quence<\/strong> and <strong>isolation de s\u00e9curit\u00e9<\/strong> (par exemple, l'\u00e9clairage automobile)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Application_Scenario_Analysis\"><\/span><strong>4.Analyse des sc\u00e9narios d'application<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>4-Pin Preferred Cases<\/strong>:<br>\u2713 Unidirectional switching (lighting\/power circuits)<br>\u2713 Space-constrained designs (PCB area &lt;100mm\u00b2)<br>\u2713 Cost-sensitive projects (30% BOM reduction)<\/p>\n\n\n\n<p><strong>Bo\u00eetiers obligatoires \u00e0 5 broches<\/strong>:<br>\u2713 Dual-state control (motor reversal\/headlight beam switching)<br>\u2713 Fail-safe systems (87a as safety loop)<br>\u2713 Smart devices with state feedback (self-diagnosis via 87a)<\/p>\n\n\n\n<p><strong>Donn\u00e9es sur l'industrie<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Automobile : 65% d'adoption de la technologie \u00e0 5 broches (sous l'impulsion des syst\u00e8mes d'aide \u00e0 la conduite automobile)<\/li>\n\n\n\n<li>Industriel : 72% de dominance de 4 broches (fiabilit\u00e9 critique)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Selection_Decision_Flowchart\"><\/span><strong>5.Diagramme de d\u00e9cision de s\u00e9lection<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1021\" height=\"1024\" src=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Flowchart-1021x1024.png\" alt=\"Organigramme de d\u00e9cision de s\u00e9lection\" class=\"wp-image-6654\" style=\"width:700px\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Flowchart-1021x1024.png 1021w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Flowchart-300x300.png 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Flowchart-150x150.png 150w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Flowchart-768x770.png 768w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Flowchart-1532x1536.png 1532w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Flowchart-2043x2048.png 2043w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Flowchart-400x400.png 400w\" sizes=\"auto, (max-width: 1021px) 100vw, 1021px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Design_Risk_Mitigation\"><\/span><strong>6.Att\u00e9nuation des risques de conception<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Limites des 4 broches<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Voltage spikes: Add RC snubber (100\u03a9+0.1\u03bcF recommended)<\/li>\n\n\n\n<li>Pas de retour d'\u00e9tat : Capteur de courant externe (par exemple, ACS712)<\/li>\n<\/ul>\n\n\n\n<p><strong>Am\u00e9lioration des avantages \u00e0 5 broches<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L'effet de levier 87a pour :<\/li>\n\n\n\n<li>Verrouillage du mat\u00e9riel (isolation galvanique)<\/li>\n\n\n\n<li>Autocontr\u00f4le \u00e0 la mise sous tension (v\u00e9rification de l'\u00e9tat de l'unit\u00e9 centrale)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_Technology_Trends\"><\/span><strong>7.Tendances technologiques<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>4 broches<\/strong>: Adaptation HV-DC (versions 1000VDC compatibles EV)<\/li>\n\n\n\n<li><strong>5 broches<\/strong>: Diagnostics int\u00e9gr\u00e9s (par exemple, s\u00e9rie IMRS de TE Connectivity)<\/li>\n<\/ul>\n\n\n\n<p><strong>Recommandation<\/strong>Donner la priorit\u00e9 \u00e0 la validation de la dur\u00e9e de vie du contact (selon la norme CEI 61810-7).<\/p>","protected":false},"excerpt":{"rendered":"<p>Relais \u00e0 4 ou 5 broches : Principales diff\u00e9rences dans les structures SPDT\/SPST, les configurations de contact (30\/87\/87a) et les applications automobiles\/industrielles. 65% des syst\u00e8mes automobiles utilisent des relais \u00e0 5 broches pour une conception \u00e0 s\u00e9curit\u00e9 int\u00e9gr\u00e9e.<\/p>","protected":false},"author":2,"featured_media":6656,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[140],"class_list":["post-6653","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-relay"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>4-Pin vs 5-Pin Relay Depth Technology Comparison - Topfastpcba<\/title>\n<meta name=\"description\" content=\"4-Pin vs 5-Pin Relay: 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