{"id":6644,"date":"2025-05-15T15:37:08","date_gmt":"2025-05-15T07:37:08","guid":{"rendered":"https:\/\/topfastpcba.com\/?p=6644"},"modified":"2025-05-15T15:40:14","modified_gmt":"2025-05-15T07:40:14","slug":"5-pin-relay","status":"publish","type":"post","link":"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/","title":{"rendered":"Relais \u00e0 5 broches"},"content":{"rendered":"<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' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#What_is_a_5-pin_relay\" >Qu'est-ce qu'un relais \u00e0 5 broches ?<\/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:\/\/topfastpcba.com\/fr\/5-pin-relay\/#1Structure\" >1.Structure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#2Types\" >2.Types<\/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:\/\/topfastpcba.com\/fr\/5-pin-relay\/#5-Pin_Relay_Pinout_and_Functions_Explained\" >Explication du brochage et des fonctions des relais \u00e0 5 broches<\/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:\/\/topfastpcba.com\/fr\/5-pin-relay\/#Operation_Logic\" >Logique de fonctionnement<\/a><\/li><\/ul><\/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\/5-pin-relay\/#Advantages_and_Disadvantages_of_5-Pin_Relays\" >Avantages et inconv\u00e9nients des relais \u00e0 5 broches<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#1Key_Advantages\" >1. les principaux avantages<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#2Main_Disadvantages\" >2. les principaux inconv\u00e9nients<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#3Usage_Recommendations\" >3.Utilisation Recommandations<\/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:\/\/topfastpcba.com\/fr\/5-pin-relay\/#Working_Principle_of_a_5-Pin_Relay\" >Principe de fonctionnement d'un relais \u00e0 5 broches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#5-Pin_Relay_Connection_Guide_Safe_Installation_Procedure\" >Guide de connexion des relais \u00e0 5 broches (proc\u00e9dure d'installation s\u00e9curis\u00e9e)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#1_Safety_Preparation\" >1. Pr\u00e9paration \u00e0 la s\u00e9curit\u00e9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#2_Standard_Wiring_Procedure\" >2.Proc\u00e9dure de c\u00e2blage standard<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#3_Enhanced_Protection_Measures\" >3.Mesures de protection renforc\u00e9e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#4_Verification_Testing\" >4.V\u00e9rification et essais<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#Professional_Tips\" >Conseils professionnels :<\/a><\/li><\/ul><\/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:\/\/topfastpcba.com\/fr\/5-pin-relay\/#How_to_test_a_5-pin_relay\" >Comment tester un relais \u00e0 5 broches<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#1_Identify_the_pins\" >1. Identifier les broches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#2_Measuring_contact_resistance\" >2.Mesure de la r\u00e9sistance de contact<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#3_Detecting_coil_voltage\" >3.D\u00e9tection de la tension de la bobine<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#4_Functional_Test\" >4.Test fonctionnel<\/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:\/\/topfastpcba.com\/fr\/5-pin-relay\/#5-Pin_Relay_Applications_in_PCBA_Design\" >Applications des relais \u00e0 5 broches dans la conception des circuits imprim\u00e9s<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#1_Layout_Considerations\" >1. Consid\u00e9rations relatives \u00e0 la pr\u00e9sentation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#2_Electrical_Interconnection\" >2.Interconnexion \u00e9lectrique<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#3_Driver_Circuit_Implementation\" >3.Mise en \u0153uvre du circuit de commande<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#4_EMI_Mitigation_Techniques\" >4.Techniques d'att\u00e9nuation des interf\u00e9rences \u00e9lectromagn\u00e9tiques<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#5_Load_Matching_Methodology\" >5.M\u00e9thodologie d'adaptation de la charge<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#1_Electrical_Parameter_Matching_Principles\" >1.Principes d'adaptation des param\u00e8tres \u00e9lectriques<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#2_Installation_Standards\" >2.Normes d'installation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#3_Operation_and_Maintenance\" >3.Fonctionnement et entretien<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#4_Safety_Operation_Procedures\" >4.Proc\u00e9dures d'exploitation de la s\u00e9curit\u00e9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#5_Failure_Prevention_Measures\" >5.Mesures de pr\u00e9vention des d\u00e9faillances<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/#5-Pin_Relay_Application_Scope\" >Relais \u00e0 5 broches Champ d'application<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_5-pin_relay\"><\/span>Qu'est-ce qu'un relais \u00e0 5 broches ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Un relais \u00e0 5 broches est un dispositif de commande \u00e9lectronique \u00e0 cinq broches, largement utilis\u00e9 dans la commande de commutation de divers circuits \u00e9lectroniques. Les cinq broches correspondent \u00e0 diff\u00e9rentes connexions \u00e9lectriques, et la commande marche-arr\u00eat du circuit est r\u00e9alis\u00e9e par le biais du principe \u00e9lectromagn\u00e9tique.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1Structure\"><\/span>1.Structure<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Noyau de fer : <\/strong>En tant qu'\u00e9l\u00e9ment central du syst\u00e8me \u00e9lectromagn\u00e9tique, il est responsable de la conduite et de la concentration des lignes de force magn\u00e9tiques.<br><strong>Syst\u00e8me de contact :<\/strong> contient des contacts dynamiques et statiques, responsables de la commande marche-arr\u00eat du circuit principal.<br><strong>Bobine \u00e9lectromagn\u00e9tique :<\/strong> g\u00e9n\u00e8re une force \u00e9lectromagn\u00e9tique apr\u00e8s avoir \u00e9t\u00e9 aliment\u00e9, et entra\u00eene l'action du contact.<br>Bo\u00eetier : assure la protection m\u00e9canique et l'isolation \u00e9lectrique<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2Types\"><\/span>2.Types<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Selon la configuration des contacts, on peut distinguer<br><strong>Type \u00e0 contact unique :<\/strong> un ensemble de contacts normalement ouverts ou normalement ferm\u00e9s.<br><strong>Type \u00e0 double contact :<\/strong> comprenant deux s\u00e9ries de contacts normalement ouverts et normalement ferm\u00e9s.<br><strong>Type multi-contact : <\/strong>convient \u00e0 des sc\u00e9narios de contr\u00f4le complexes.<br>Dans les applications pratiques, il est n\u00e9cessaire de s\u00e9lectionner le mod\u00e8le de relais appropri\u00e9 en fonction des caract\u00e9ristiques de la charge (courant\/tension), des param\u00e8tres du signal de commande, de l'espace d'installation et d'autres facteurs. Des exigences particuli\u00e8res telles que la r\u00e9sistance aux vibrations et l'\u00e9tanch\u00e9it\u00e9 doivent \u00e9galement \u00eatre prises en compte pour des conditions de travail sp\u00e9ciales.<\/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-2.jpg\" alt=\"Relais \u00e0 5 broches\" class=\"wp-image-6646\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-2.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-2-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-2-150x101.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=\"5-Pin_Relay_Pinout_and_Functions_Explained\"><\/span><strong>Explication du brochage et des fonctions des relais \u00e0 5 broches<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Un relais \u00e0 5 broches comporte g\u00e9n\u00e9ralement cinq bornes \u00e9tiquet\u00e9es <strong>30, 85, 86, 87<\/strong>et <strong>87a<\/strong>Chacun d'entre eux remplit une fonction \u00e9lectrique sp\u00e9cifique :<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Pin<\/th><th>Fonction<\/th><th>Connexion typique<\/th><\/tr><\/thead><tbody><tr><td><strong>30<\/strong><\/td><td><strong>Entr\u00e9e de l'alimentation principale<\/strong>directement connect\u00e9 \u00e0 la batterie ou \u00e0 l'alimentation \u00e0 fusible<\/td><td>Alimentation principale du v\u00e9hicule (+12V\/24V)<\/td><\/tr><tr><td><strong>85<\/strong><\/td><td><strong>Entr\u00e9e d'alimentation du circuit de commande<\/strong>re\u00e7oit le signal d'un commutateur ou d'un module de commande<\/td><td>Connect\u00e9 \u00e0 un commutateur de commande (par exemple, commutateur d'allumage, signal de l'ECU)<\/td><\/tr><tr><td><strong>86<\/strong><\/td><td><strong>Masse du circuit de commande<\/strong>compl\u00e8te le circuit de la bobine avec la broche <strong>85<\/strong><\/td><td>Connect\u00e9 \u00e0 la masse du v\u00e9hicule (ch\u00e2ssis)<\/td><\/tr><tr><td><strong>87<\/strong><\/td><td><strong>Contact normalement ferm\u00e9 (NC)<\/strong>connect\u00e9e \u00e0 <strong>30<\/strong> lorsque le relais est hors tension, et s'ouvre lorsqu'il est sous tension<\/td><td>Connexion \u00e0 une charge active par d\u00e9faut<\/td><\/tr><tr><td><strong>87a<\/strong><\/td><td><strong>Contact normalement ouvert (NO)<\/strong>d\u00e9connect\u00e9 de <strong>30<\/strong> lorsqu'il est hors tension, et se ferme lorsqu'il est sous tension<\/td><td>Se connecte \u00e0 une charge qui ne s'active que lorsqu'elle est aliment\u00e9e.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Operation_Logic\"><\/span><strong>Logique de fonctionnement<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00c9tat hors tension<\/strong> (bobine non aliment\u00e9e) :<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>30 \u2194 87<\/strong> ferm\u00e9 (NC)<\/li>\n\n\n\n<li><strong>30 \u2194 87a<\/strong> ouvert (NO)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00c9tat d'excitation<\/strong> (85-86 aliment\u00e9s, activ\u00e9s par bobine) :<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>30 \u2194 87<\/strong> ouvre<\/li>\n\n\n\n<li><strong>30 \u2194 87a<\/strong> ferme<\/li>\n<\/ul>\n\n\n\n<p>Cette conception permet au <a href=\"https:\/\/topfastpcba.com\/fr\/songle-spdt-5-pin-miniature-pcb-mount-relay\/\">Relais \u00e0 5 broches<\/a> d'effectuer <strong>commutation de circuits<\/strong> (par exemple, les phares, la commande du ventilateur), tout en soutenant \u00e9galement les activit\u00e9s de l'entreprise. <strong>commutation \u00e0 double charge<\/strong> (par exemple, ventilateurs \u00e0 haute\/basse vitesse, moteur en avant\/en arri\u00e8re, etc.)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Advantages_and_Disadvantages_of_5-Pin_Relays\"><\/span>Avantages et inconv\u00e9nients des relais \u00e0 5 broches<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1Key_Advantages\"><\/span>1. les principaux avantages<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Capacit\u00e9 de contr\u00f4le multi-circuits<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Peut contr\u00f4ler simultan\u00e9ment plusieurs circuits ind\u00e9pendants pour des op\u00e9rations de commutation complexes<\/li>\n\n\n\n<li>Prend en charge les configurations de contact normalement ouvert (NO) et normalement ferm\u00e9 (NC)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Capacit\u00e9 de charge \u00e9lev\u00e9e<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Capacit\u00e9 de charge typique : 10-40A, adapt\u00e9 aux appareils de grande puissance<\/li>\n\n\n\n<li>Compatible avec diff\u00e9rents niveaux de tension (12V\/24V\/220V AC\/DC)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Large \u00e9ventail d'applications<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Syst\u00e8mes de contr\u00f4le de l'automatisation industrielle<\/li>\n\n\n\n<li>\u00c9lectronique automobile (par exemple, phares, ventilateurs de refroidissement)<\/li>\n\n\n\n<li>Contr\u00f4le des appareils domestiques intelligents<\/li>\n\n\n\n<li>\u00c9quipement de protection du syst\u00e8me \u00e9lectrique<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2Main_Disadvantages\"><\/span>2. les principaux inconv\u00e9nients<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Complexit\u00e9 accrue du c\u00e2blage<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00e9cessite l'identification correcte des 5 bornes (30\/85\/86\/87\/87a)<\/li>\n\n\n\n<li>Un c\u00e2blage incorrect peut entra\u00eener une d\u00e9faillance du relais ou endommager l'\u00e9quipement.<\/li>\n\n\n\n<li>Il est souvent n\u00e9cessaire de se r\u00e9f\u00e9rer \u00e0 des sch\u00e9mas de c\u00e2blage<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Consid\u00e9rations sur les co\u00fbts<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le co\u00fbt unitaire est 2 \u00e0 5 fois plus \u00e9lev\u00e9 que celui des interrupteurs simples.<\/li>\n\n\n\n<li>Frais de c\u00e2blage suppl\u00e9mentaires pour l'int\u00e9gration du syst\u00e8me<\/li>\n\n\n\n<li>Prix nettement plus \u00e9lev\u00e9 pour les mod\u00e8les \u00e0 courant \u00e9lev\u00e9<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Autres limitations<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Les contacts m\u00e9caniques ont une dur\u00e9e de vie limit\u00e9e (~100 000 op\u00e9rations).<\/li>\n\n\n\n<li>G\u00e9n\u00e8re des interf\u00e9rences \u00e9lectromagn\u00e9tiques lors de la commutation<\/li>\n\n\n\n<li>Plus encombrants que les relais \u00e0 semi-conducteurs<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3Usage_Recommendations\"><\/span>3.Utilisation Recommandations<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Id\u00e9al pour contr\u00f4ler de mani\u00e8re fiable des charges de puissance moyenne \u00e0 \u00e9lev\u00e9e. Pour les applications de contr\u00f4le simple de faible puissance, des solutions plus \u00e9conomiques peuvent \u00eatre pr\u00e9f\u00e9rables. Pour une installation professionnelle, il convient d'utiliser des bornes clairement identifi\u00e9es et correctement isol\u00e9es.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Working_Principle_of_a_5-Pin_Relay\"><\/span>Principe de fonctionnement d'un relais \u00e0 5 broches<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Un relais \u00e0 5 broches fonctionne par commutation \u00e9lectromagn\u00e9tique, selon la s\u00e9quence suivante :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00c9tat par d\u00e9faut (hors tension)<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L'armature interne du relais est maintenue par un ressort.<\/li>\n\n\n\n<li><strong>La borne 30 est reli\u00e9e \u00e0 la borne 87<\/strong> (circuit normalement ferm\u00e9)<\/li>\n\n\n\n<li><strong>La borne 30 se d\u00e9connecte de 87a<\/strong> (circuit normalement ouvert)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Activation (bobine excit\u00e9e)<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lorsque l'alimentation est appliqu\u00e9e aux broches <strong>85 (+)<\/strong> and <strong>86 (-)<\/strong>:<\/li>\n\n\n\n<li>La bobine de l'\u00e9lectroaimant g\u00e9n\u00e8re un champ magn\u00e9tique<\/li>\n\n\n\n<li>La force magn\u00e9tique surmonte la tension du ressort<\/li>\n\n\n\n<li>L'armature se d\u00e9place physiquement, ce qui provoque :\n<ul class=\"wp-block-list\">\n<li><strong>30 se d\u00e9connecte de 87<\/strong> (le circuit NC s'ouvre)<\/li>\n\n\n\n<li><strong>30 se connecte \u00e0 87a<\/strong> (Le circuit NO se ferme)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D\u00e9sactivation (bobine hors tension)<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lorsque la bobine n'est plus aliment\u00e9e en \u00e9lectricit\u00e9 :<\/li>\n\n\n\n<li>Le champ magn\u00e9tique s'effondre instantan\u00e9ment<\/li>\n\n\n\n<li>Le ressort ram\u00e8ne l'armature \u00e0 sa position par d\u00e9faut<\/li>\n\n\n\n<li>Tous les contacts reviennent \u00e0 leur \u00e9tat initial<\/li>\n<\/ul>\n\n\n\n<p><strong>Caract\u00e9ristiques principales :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Commutation rapide<\/strong>: Temps de r\u00e9ponse typique 5-15ms<\/li>\n\n\n\n<li><strong>Clic audible<\/strong>: Le mouvement m\u00e9canique produit un son caract\u00e9ristique<\/li>\n\n\n\n<li><strong>Contr\u00f4le isol\u00e9<\/strong>: Le circuit de la bobine \u00e0 faible puissance (typiquement 12V\/24V DC) contr\u00f4le le circuit de la charge \u00e0 forte puissance (jusqu'\u00e0 40A).<\/li>\n<\/ul>\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-1.jpg\" alt=\"Relais \u00e0 5 broches\" class=\"wp-image-6647\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-1.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-1-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-1-150x101.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=\"5-Pin_Relay_Connection_Guide_Safe_Installation_Procedure\"><\/span>Guide de connexion des relais \u00e0 5 broches (proc\u00e9dure d'installation s\u00e9curis\u00e9e)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Safety_Preparation\"><\/span>1. Pr\u00e9paration \u00e0 la s\u00e9curit\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Isolation de la puissance<\/strong>: V\u00e9rifiez que toutes les sources d'alimentation sont d\u00e9connect\u00e9es \u00e0 l'aide d'un multim\u00e8tre.<\/li>\n\n\n\n<li><strong>Pr\u00e9paration des outils<\/strong>: Pr\u00e9parer les outils isol\u00e9s (lampe de test 12V, pince \u00e0 d\u00e9nuder)<\/li>\n\n\n\n<li><strong>Inspection des relais<\/strong>: V\u00e9rifier les sp\u00e9cifications du relais (tension\/courant de la bobine, valeur nominale du contact).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Standard_Wiring_Procedure\"><\/span>2.Proc\u00e9dure de c\u00e2blage standard<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Point de connexion<\/th><th>Sp\u00e9cification de c\u00e2blage<\/th><\/tr><\/thead><tbody><tr><td><strong>Broche 30<\/strong><\/td><td>Connect to fused power source (max current \u2264 relay rating)<\/td><\/tr><tr><td><strong>Broche 85<\/strong><\/td><td>Lien avec la sortie de l'interrupteur de contr\u00f4le (d\u00e9clenchement positif)<\/td><\/tr><tr><td><strong>Broche 86<\/strong><\/td><td>Route to reliable ground point (resistance &lt;0.5\u03a9)<\/td><\/tr><tr><td><strong>Broche 87<\/strong><\/td><td>C\u00e2ble vers le dispositif de charge NC (Normalement Ferm\u00e9)<\/td><\/tr><tr><td><strong>Broche 87a<\/strong><\/td><td>Connexion \u00e0 un dispositif de charge NO (Normalement Ouvert)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Enhanced_Protection_Measures\"><\/span>3.Mesures de protection renforc\u00e9e<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Protection contre les surintensit\u00e9s<\/strong>: Installer un fusible \u00e0 action rapide (125% du courant de charge) sur la broche 30.<\/li>\n\n\n\n<li><strong>Suppression de la tension<\/strong>: Ajouter une diode flyback (1N4007) entre les broches de la bobine (85-86).<\/li>\n\n\n\n<li><strong>Protection des contacts<\/strong>: Parallel RC snubber circuit (100\u03a9 + 0.1\u03bcF) for inductive loads<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Verification_Testing\"><\/span>4.V\u00e9rification et essais<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Contr\u00f4le avant mise sous tension<\/strong>:<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Continuity test between 30-87 (should show 0\u03a9)<\/li>\n\n\n\n<li>Open circuit between 30-87a (should show \u221e\u03a9)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Test op\u00e9rationnel<\/strong>:<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Appliquer la tension de commande (mesurer le courant de la bobine 40-100mA typique)<\/li>\n\n\n\n<li>V\u00e9rifier la transition du contact (clic audible dans les 20 ms)<\/li>\n\n\n\n<li>Mesure du courant de charge (doit correspondre aux sp\u00e9cifications de l'appareil)<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Professional_Tips\"><\/span>Conseils professionnels :<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pour les applications automobiles : Utiliser une embase de relais avec un indice de protection IP67<\/li>\n\n\n\n<li>Environnements \u00e0 fortes vibrations :Appliquer du frein-filet sur les vis des bornes<\/li>\n\n\n\n<li>Syst\u00e8mes critiques :Mise en place d'une configuration de relais redondante<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_test_a_5-pin_relay\"><\/span>Comment tester un relais \u00e0 5 broches<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>La m\u00e9thode de mesure du bon ou du mauvais fonctionnement du relais \u00e0 cinq broches comprend principalement les \u00e9tapes suivantes :<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Identify_the_pins\"><\/span>1. Identifier les broches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Tout d'abord, vous devez identifier les deux broches de la bobine et les trois broches de contact du relais \u00e0 cinq broches. Les broches de la bobine ont g\u00e9n\u00e9ralement une tension \u00e9lev\u00e9e (par exemple 12 ou 24 V), tandis que les broches de contact ont une tension relativement faible (de 0 \u00e0 5 V).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Measuring_contact_resistance\"><\/span>2.Mesure de la r\u00e9sistance de contact<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>En utilisant le r\u00e9glage de la r\u00e9sistance d'un multim\u00e8tre, mesurez la r\u00e9sistance de chaque contact par rapport aux autres contacts et \u00e0 lui-m\u00eame.Dans des circonstances normales, deux contacts doivent pr\u00e9senter une grande r\u00e9sistance entre eux, ce qui indique qu'ils ne forment pas un chemin. Si la r\u00e9sistance est faible, il peut y avoir un court-circuit. Dans le m\u00eame temps, la r\u00e9sistance d'un seul contact doit \u00e9galement \u00eatre \u00e9lev\u00e9e, sinon cela peut indiquer qu'il y a un court-circuit entre le contact et l'enveloppe du relais.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Detecting_coil_voltage\"><\/span>3.D\u00e9tection de la tension de la bobine<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>D\u00e9tectez la tension entre les broches de la bobine en utilisant l'engrenage de tension du multim\u00e8tre.Si une tension est d\u00e9tect\u00e9e, la bobine est en bon \u00e9tat ; si aucune tension n'est d\u00e9tect\u00e9e, cela peut signifier que la bobine est d\u00e9connect\u00e9e.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Functional_Test\"><\/span>4.Test fonctionnel<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Si toutes les mesures ci-dessus sont conformes aux attentes, le relais peut \u00eatre connect\u00e9 au circuit pour des essais fonctionnels suppl\u00e9mentaires afin de v\u00e9rifier s'il peut engager et rel\u00e2cher correctement les contacts.<br>Veuillez pr\u00eater attention aux points suivants lors de la mesure :<br>Veillez \u00e0 ce que la mesure soit effectu\u00e9e hors tension afin d'\u00e9viter tout risque d'\u00e9lectrocution.<br>Gardez les deux mains et la sonde du multim\u00e8tre isol\u00e9es des parties m\u00e9talliques du relais pendant la mesure.<br>Si des conditions anormales sont constat\u00e9es, telles qu'une valeur de r\u00e9sistance anormale, l'absence de tension, etc., le relais ou les circuits connexes doivent faire l'objet d'un contr\u00f4le plus approfondi.<\/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-4.jpg\" alt=\"\" class=\"wp-image-6650\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-4.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-4-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-4-150x101.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=\"5-Pin_Relay_Applications_in_PCBA_Design\"><\/span>Applications des relais \u00e0 5 broches dans les <a href=\"https:\/\/topfastpcba.com\/fr\/pcb-assembly\/\">PCBA<\/a> Conception<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Layout_Considerations\"><\/span>1. Consid\u00e9rations relatives \u00e0 la pr\u00e9sentation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Placement strat\u00e9gique<\/strong>:<\/li>\n\n\n\n<li>Positionner pr\u00e8s du bord de la carte pour faciliter l'entretien<\/li>\n\n\n\n<li>Distance minimale de 5 mm par rapport aux circuits analogiques sensibles<\/li>\n\n\n\n<li>Orientation parall\u00e8le aux circuits d'alimentation pour minimiser la surface de la boucle<\/li>\n\n\n\n<li><strong>Gestion thermique<\/strong>:<\/li>\n\n\n\n<li>\u00c9viter de placer l'appareil \u00e0 proximit\u00e9 de composants g\u00e9n\u00e9rant de la chaleur<\/li>\n\n\n\n<li>Pr\u00e9voir un relief en cuivre ad\u00e9quat pour la dissipation de la puissance de la bobine.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Electrical_Interconnection\"><\/span>2.Interconnexion \u00e9lectrique<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Acheminement des terminaux<\/strong>:<\/li>\n\n\n\n<li>Largeur de trace de 30-40 millim\u00e8tres pour les chemins porteurs (10A+)<\/li>\n\n\n\n<li>Couches de routage s\u00e9par\u00e9es pour les courants forts (&gt;5A) et les signaux<\/li>\n\n\n\n<li>Mise en place d'une mise \u00e0 la terre en \u00e9toile pour les terminaux des bobines\/commandes<\/li>\n\n\n\n<li><strong>Circuits de protection<\/strong>:<\/li>\n\n\n\n<li>Diodes TVS pour la commutation de charges inductives<\/li>\n\n\n\n<li>Suppression de l'ARC pour les contacts (r\u00e9seaux RC\/MOV)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Driver_Circuit_Implementation\"><\/span>3.Mise en \u0153uvre du circuit de commande<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Type de MCU<\/th><th>Solution pour les conducteurs<\/th><th>Gain actuel<\/th><\/tr><\/thead><tbody><tr><td>STM32F1<\/td><td>2N7002 MOSFET<\/td><td>20:1<\/td><\/tr><tr><td>STM32H7<\/td><td>ULN2003 Darlington<\/td><td>50:1<\/td><\/tr><tr><td>ESP32<\/td><td>BSS138 FET de niveau logique<\/td><td>15:1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Notes de conception<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Include base\/gate resistors (1-10k\u03a9)<\/li>\n\n\n\n<li>Impl\u00e9menter des diodes flyback (1N4148 pour &lt;500mA)<\/li>\n\n\n\n<li>Pr\u00e9voir un d\u00e9couplage du circuit d'attaque (c\u00e9ramique 100nF)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_EMI_Mitigation_Techniques\"><\/span>4.Techniques d'att\u00e9nuation des interf\u00e9rences \u00e9lectromagn\u00e9tiques<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Solutions au niveau du conseil d'administration<\/strong>:<\/li>\n\n\n\n<li>Anneaux de protection autour de la bobine du relais<\/li>\n\n\n\n<li>Empilement de quatre couches avec plan de masse d\u00e9di\u00e9<\/li>\n\n\n\n<li>Perles de ferrite sur les lignes d'alimentation des bobines<\/li>\n\n\n\n<li><strong>S\u00e9lection des composants<\/strong>:<\/li>\n\n\n\n<li>Optez pour des mod\u00e8les de relais scell\u00e9s (s\u00e9rie RT1)<\/li>\n\n\n\n<li>Pr\u00e9f\u00e9rer les contacts plaqu\u00e9s or pour une commutation \u00e0 faible bruit<\/li>\n\n\n\n<li>S\u00e9lectionner les variantes \u00e0 faible \u00e9mission avec suppression int\u00e9gr\u00e9e<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Load_Matching_Methodology\"><\/span>5.M\u00e9thodologie d'adaptation de la charge<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Matrice de s\u00e9lection<\/strong>:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Param\u00e8tres<\/th><th>Norme industrielle<\/th><th>Qualit\u00e9 automobile<\/th><th>Qualit\u00e9 consommateur<\/th><\/tr><\/thead><tbody><tr><td>Cote de contact<\/td><td>10A@250VAC<\/td><td>15A@14VDC<\/td><td>5A@120VAC<\/td><\/tr><tr><td>Dur\u00e9e de vie m\u00e9canique<\/td><td>100 000 op\u00e9rations<\/td><td>50 000 op\u00e9rations<\/td><td>10 000 op\u00e9rations<\/td><\/tr><tr><td>Temp\u00e9rature de fonctionnement<\/td><td>-40\u00b0C~85\u00b0C<\/td><td>-40\u00b0C~125\u00b0C<\/td><td>0\u00b0C~70\u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Protocole de validation<\/strong>:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Test de courant d'appel (10x nominal)<\/li>\n\n\n\n<li>Mesure du rebond de contact (&lt;5ms)<\/li>\n\n\n\n<li>Imagerie thermique \u00e0 100 % du cycle de travail<\/li>\n<\/ol>\n\n\n\n<p><strong>V\u00e9rification de la conception<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Perform HALT testing (85\u00b0C\/85%RH)<\/li>\n\n\n\n<li>Effectuer des analyses de pr\u00e9-conformit\u00e9 CEM<\/li>\n\n\n\n<li>Valider les pr\u00e9visions de MTBF via MIL-HDBK-217F<\/li>\n<\/ul>\n\n\n\n<p>Remarque : pour les conceptions \u00e0 haute densit\u00e9, envisagez des relais CMS (par exemple, s\u00e9rie TQ2-L2) avec des empreintes compatibles. Effectuez toujours un examen de la conception pour la fabrication (DFM) avec votre assembleur de circuits imprim\u00e9s.<\/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-3.jpg\" alt=\"Relais \u00e0 5 broches\" class=\"wp-image-6648\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-3.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-3-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/5-Pin-Relay-3-150x101.jpg 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2>5 Consignes de s\u00e9curit\u00e9 pour les relais \u00e0 broches<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Electrical_Parameter_Matching_Principles\"><\/span>1.Principes d'adaptation des param\u00e8tres \u00e9lectriques<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Compatibilit\u00e9 de tension<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Strictly verify coil rated voltage (\u00b110% tolerance)<\/li>\n\n\n\n<li>Sp\u00e9cifications standard : 12VDC\/24VDC\/220VAC<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Capacit\u00e9 actuelle<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Le courant de contact ne doit pas d\u00e9passer la valeur nominale (un d\u00e9classement de 80 % est recommand\u00e9).<\/li>\n\n\n\n<li>Normes de r\u00e9f\u00e9rence :\n<ul class=\"wp-block-list\">\n<li>Charge r\u00e9sistive : 100% de la valeur nominale<\/li>\n\n\n\n<li>Charge inductive :50% de la valeur nominale<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>S\u00e9lection du calibre des fils<\/strong>:Load CurrentMinimum CSARecommended AWG\u22645A0.5mm\u00b2AWG205-10A1.0mm\u00b2AWG1810-20A2.5mm\u00b2AWG14<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Installation_Standards\"><\/span>2.Normes d'installation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Montage m\u00e9canique<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Utiliser le montage sur rail DIN (conforme \u00e0 la norme IEC60715)<\/li>\n\n\n\n<li>Installer des rondelles anti-vibration dans les environnements \u00e0 fortes vibrations<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Isolation \u00e9lectrique<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Maintain \u22656mm spacing between high\/low voltage terminals<\/li>\n\n\n\n<li>Installer des manchons isolants sur les lignes \u00e0 haute tension<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Gestion thermique<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Provide \u226520mm clearance for heat dissipation<\/li>\n\n\n\n<li>Maintain \u226515mm spacing between multiple relays<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Operation_and_Maintenance\"><\/span>3.Fonctionnement et entretien<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\u00c9l\u00e9ments d'inspection p\u00e9riodique<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Monthly: Contact resistance measurement (\u2264100m\u03a9)<\/li>\n\n\n\n<li>Quarterly: Coil insulation test (\u226510M\u03a9)<\/li>\n\n\n\n<li>Annually: Mechanical operation test (operating force \u22641.5N)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Proc\u00e9dure de traitement des d\u00e9faillances<\/strong>:<\/li>\n<\/ol>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"706\" height=\"382\" src=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Fault-Handling-Procedure.jpg\" alt=\"Proc\u00e9dure de traitement des d\u00e9faillances\" class=\"wp-image-6645\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Fault-Handling-Procedure.jpg 706w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Fault-Handling-Procedure-300x162.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/Fault-Handling-Procedure-150x81.jpg 150w\" sizes=\"auto, (max-width: 706px) 100vw, 706px\" \/><\/figure>\n<\/div>\n\n\n<p> 3. <strong>Contr\u00f4le de l'environnement<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Plage d'humidit\u00e9 : 20 %-85 %HR (sans condensation)<\/li>\n\n\n\n<li>Protection contre la poussi\u00e8re : IP40 ou sup\u00e9rieur<\/li>\n<\/ul>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\"><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Safety_Operation_Procedures\"><\/span>4.Proc\u00e9dures d'exploitation de la s\u00e9curit\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>S\u00e9quence de mise hors tension<\/strong>:\n<ol start=\"1\" class=\"wp-block-list\">\n<li>D\u00e9connecter l'alimentation de la charge<\/li>\n\n\n\n<li>V\u00e9rifier la mise hors tension \u00e0 l'aide d'un testeur de tension<\/li>\n\n\n\n<li>Installer la balise &#8220;Do Not Operate&amp;#8221 ; (Ne pas faire fonctionner)<\/li>\n\n\n\n<li>Attendre 5 minutes (d\u00e9charge de la charge capacitive)<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>Pr\u00e9cautions de d\u00e9montage<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Utiliser des outils s\u00e9curis\u00e9s contre les d\u00e9charges \u00e9lectrostatiques (ESD)<\/li>\n\n\n\n<li>Retirer les bornes de charge avant les bornes de contr\u00f4le<\/li>\n\n\n\n<li>\u00c9tiqueter tous les terminaux (recommander une documentation photographique)<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Failure_Prevention_Measures\"><\/span>5.Mesures de pr\u00e9vention des d\u00e9faillances<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Protection des contacts<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Charges DC : Diode de roue libre parall\u00e8le<\/li>\n\n\n\n<li>AC loads: Install RC snubber circuit (0.1\u03bcF+100\u03a9)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Strat\u00e9gies de prolongation de la vie<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u00c9viter les commutations fr\u00e9quentes (&lt;10 op\u00e9rations\/minute)<\/li>\n\n\n\n<li>Pour les charges \u00e0 courant \u00e9lev\u00e9, il est recommand\u00e9 d'utiliser un contacteur de pr\u00e9-connexion.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>Remarque : conform\u00e9ment aux normes UL508, les relais industriels doivent \u00eatre remplac\u00e9s \u00e0 titre pr\u00e9ventif toutes les 50 000 op\u00e9rations ou tous les 3 ans (le premier des deux pr\u00e9valant). Dans les syst\u00e8mes d'alimentation critiques, une configuration redondante doit \u00eatre mise en \u0153uvre pour r\u00e9pondre aux exigences de fiabilit\u00e9 SIL2.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5-Pin_Relay_Application_Scope\"><\/span>Relais \u00e0 5 broches Champ d'application<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Projets de domotique<br><\/strong>Dans les projets domotiques, les relais \u00e0 5 broches sont couramment utilis\u00e9s pour commuter des charges CA, par exemple pour contr\u00f4ler l'allumage des lumi\u00e8res, des prises de courant et d'autres dispositifs.<\/li>\n\n\n\n<li><strong>Contr\u00f4le industriel<br><\/strong>Dans le domaine du contr\u00f4le industriel, les relais \u00e0 5 broches sont utilis\u00e9s pour contr\u00f4ler le d\u00e9marrage et l'arr\u00eat de gros \u00e9quipements ou de machines afin d'assurer le fonctionnement normal et la s\u00e9curit\u00e9 de l'\u00e9quipement.<\/li>\n\n\n\n<li><strong>\u00c9lectronique automobile<br><\/strong>Dans l'\u00e9lectronique automobile, les relais \u00e0 5 broches sont utilis\u00e9s pour contr\u00f4ler les voyants lumineux, les l\u00e8ve-vitres, etc. afin d'am\u00e9liorer la s\u00e9curit\u00e9 et le confort des v\u00e9hicules.<\/li>\n\n\n\n<li><strong>Circuit de s\u00e9curit\u00e9<br><\/strong>Dans les circuits de s\u00e9curit\u00e9, les relais \u00e0 5 broches sont utilis\u00e9s pour d\u00e9connecter la charge de l'alimentation en cas de dysfonctionnement, assurant ainsi la s\u00e9curit\u00e9 du syst\u00e8me.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>Ce guide complet explore les relais \u00e0 5 broches, en d\u00e9taillant leurs fonctions (30, 85, 86, 87, 87a), leurs m\u00e9canismes de fonctionnement (commutation par sol\u00e9no\u00efde) et les meilleures pratiques de c\u00e2blage. Il pr\u00e9sente \u00e9galement les applications dans les syst\u00e8mes automobiles, industriels et domestiques intelligents.<\/p>","protected":false},"author":2,"featured_media":6649,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-6644","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>5 Pin Relay - Topfastpcba<\/title>\n<meta name=\"description\" content=\"Learn all about 5-pin relays - pinouts, how they work, how to wire them, best practices in PCB design, safety precautions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"5 Pin Relay - 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