{"id":6715,"date":"2025-05-26T14:31:07","date_gmt":"2025-05-26T06:31:07","guid":{"rendered":"https:\/\/topfastpcba.com\/?p=6715"},"modified":"2025-10-22T17:08:22","modified_gmt":"2025-10-22T09:08:22","slug":"what-is-pcb-relay","status":"publish","type":"post","link":"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/","title":{"rendered":"What is PCB Relay\uff1f"},"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\/what-is-pcb-relay\/#What_is_a_PCB_relay\" >Qu'est-ce qu'un relais PCB ?<\/a><\/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\/what-is-pcb-relay\/#Core_Advantages\" >Avantages principaux<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#1_Compact_Integration\" >1. Int\u00e9gration compacte<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#2_Electrical_Safety\" >2.S\u00e9curit\u00e9 \u00e9lectrique<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#3_Flexible_Adaptation\" >3.Adaptation souple<\/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\/what-is-pcb-relay\/#PCB_Relay_Characteristics\" >Caract\u00e9ristiques des relais du circuit imprim\u00e9<\/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\/what-is-pcb-relay\/#1_High_voltagecurrent_carrying_capacity\" >1. Capacit\u00e9 de transport de tension\/courant \u00e9lev\u00e9e<\/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\/what-is-pcb-relay\/#2_Semiconductor_Technology_Solid_State_RelaySSR\" >2.Technologie des semi-conducteurs (relais \u00e0 semi-conducteurs)<\/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\/what-is-pcb-relay\/#3_Delay_trigger_function\" >3.Fonction de d\u00e9clenchement \u00e0 retardement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#4_Temperature_protection_thermal_relay\" >4.Protection de la temp\u00e9rature (relais thermique)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#5_Frequency_protection_AC_system_specific\" >5.Protection de la fr\u00e9quence (sp\u00e9cifique au syst\u00e8me AC)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#Core_Structure_Composition\" >Structure de base Composition<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#How_does_a_PCB_relay_work\" >Comment fonctionne un relais de circuit imprim\u00e9 ?<\/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:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#1_Excitation_Stage\" >1. Phase d'excitation<\/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\/what-is-pcb-relay\/#2_Contact_action\" >2.Action de contact<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#3_Reset_stage\" >3.Remise \u00e0 z\u00e9ro<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#Relay_PCB_Types\" >Types de circuits imprim\u00e9s de relais<\/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\/what-is-pcb-relay\/#1_Single_Pole_Single_Throw_SPST_Single_Pole_Single_Throw\" >1. Unipolaire unidirectionnel (SPST, Single Pole Single Throw)<\/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\/what-is-pcb-relay\/#2_Single_Pole_Double_Throw_SPDT_Single_Pole_Double_Throw\" >2.Unipolaire double (SPDT, Single Pole Double Throw)<\/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\/what-is-pcb-relay\/#3_Double_Pole_Single_Throw_DPST_Double_Pole_Single_Throw\" >3.Double p\u00f4le unidirectionnel (DPST, Double Pole Single Throw)<\/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\/what-is-pcb-relay\/#4_Double_Pole_Double_Throw_DPDT_Double_Pole_Double_Throw\" >4.Double Pole Double Throw (DPDT, Double Pole Double Throw)<\/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\/what-is-pcb-relay\/#Basic_Design_Requirements_for_PCB_Relays\" >Exigences de base pour la conception des relais pour 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\/what-is-pcb-relay\/#1_PCB_Material_and_Thickness\" >1. Mat\u00e9riau et \u00e9paisseur du circuit imprim\u00e9<\/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\/what-is-pcb-relay\/#2_Conductor_Copper_Foil_Thickness\" >2.\u00c9paisseur du conducteur (feuille de cuivre)<\/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\/what-is-pcb-relay\/#3_Layout_and_Spacing_Specifications\" >3.Sp\u00e9cifications relatives \u00e0 la disposition et \u00e0 l'espacement<\/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\/what-is-pcb-relay\/#4_Mounting_and_Mechanical_Protection\" >4.Montage et protection m\u00e9canique<\/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\/what-is-pcb-relay\/#5_Cleaning_and_Protection\" >5.Nettoyage et protection<\/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\/what-is-pcb-relay\/#Design_Pitfalls_and_Common_Mistakes\" >Pi\u00e8ges de la conception et erreurs courantes<\/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\/what-is-pcb-relay\/#Relay_Selection_Reference_Table\" >Tableau de r\u00e9f\u00e9rence pour la s\u00e9lection des relais<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#PCB_Relay_Mounting_Techniques\" >Techniques de montage des relais sur circuit imprim\u00e9<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#I_Soldering_Process_Specifications\" >I. Sp\u00e9cifications du processus de brasage<\/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\/what-is-pcb-relay\/#II_Installation_Electrical_Connection\" >II.Installation &amp;amp ; Raccordement \u00e9lectrique<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#III_Post-Installation_Steps\" >III.\u00c9tapes post\u00e9rieures \u00e0 l'installation<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#IV_Common_Pitfalls_Solutions\" >IV.Pi\u00e8ges courants et solutions<\/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-35\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#Testing_PCB_Relays\" >Test des relais de circuits imprim\u00e9s<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/topfastpcba.com\/fr\/what-is-pcb-relay\/#Related_reading\" >Lecture associ\u00e9e<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_PCB_relay\"><\/span>Qu'est-ce qu'un relais PCB ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Les relais PCB (Printed Circuit Board Relays) sont des relais miniatures qui peuvent \u00eatre mont\u00e9s directement sur un PCB afin d'alimenter et de d\u00e9salimenter des circuits par le biais de signaux de commande de mani\u00e8re intelligente. Leur fonction principale est de contr\u00f4ler en toute s\u00e9curit\u00e9 des circuits haute tension \u00e0 l'aide de circuits de faible puissance tout en assurant l'isolation du courant &amp;#8211 un avantage cl\u00e9 que les interrupteurs transistoris\u00e9s ne peuvent pas remplacer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Core_Advantages\"><\/span>Avantages principaux<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Compact_Integration\"><\/span>1. Int\u00e9gration compacte<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Con\u00e7u pour les circuits imprim\u00e9s, il est petit et l\u00e9ger, prend en charge l'installation de processus de trous traversants et convient \u00e0 la mise en page de circuits imprim\u00e9s \u00e0 haute densit\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Electrical_Safety\"><\/span>2.S\u00e9curit\u00e9 \u00e9lectrique<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>L'isolation physique (s\u00e9paration des contacts et des bobines) prot\u00e8ge le c\u00f4t\u00e9 commande basse tension des interf\u00e9rences du c\u00f4t\u00e9 haute tension, r\u00e9duisant ainsi les risques pour le syst\u00e8me.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Flexible_Adaptation\"><\/span>3.Adaptation souple<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Diff\u00e9rents types (par exemple, relais de signalisation, relais de puissance, relais \u00e0 semi-conducteurs, etc.) sont disponibles pour r\u00e9pondre aux diff\u00e9rentes exigences en mati\u00e8re de tension\/courant.<\/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\/PCB-Relay.jpg\" alt=\"Relais PCB\" class=\"wp-image-6717\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/PCB-Relay.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/PCB-Relay-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/PCB-Relay-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=\"PCB_Relay_Characteristics\"><\/span>Caract\u00e9ristiques des relais du circuit imprim\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_High_voltagecurrent_carrying_capacity\"><\/span>1. Capacit\u00e9 de transport de tension\/courant \u00e9lev\u00e9e<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Con\u00e7us pour des applications \u00e0 haute tension (par exemple 220V AC\/DC dans le contr\u00f4le industriel) et \u00e0 haute intensit\u00e9 (10A+) afin d'assurer une commutation stable des charges de puissance.<br>Applications typiques : contr\u00f4le des moteurs, syst\u00e8mes de distribution d'\u00e9nergie, protection des armoires \u00e9lectriques.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Semiconductor_Technology_Solid_State_RelaySSR\"><\/span>2.Technologie des semi-conducteurs (relais \u00e0 semi-conducteurs)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Conception sans contact : Commutation \u00e9lectronique par semi-conducteurs (par exemple, MOSFET, thyristors), pas d'usure m\u00e9canique et dur\u00e9e de vie plus longue.<br>Faible interf\u00e9rence : \u00e9vite les \u00e9tincelles et le bruit \u00e9lectromagn\u00e9tique des contacts de relais traditionnels, convient aux \u00e9quipements \u00e9lectroniques de pr\u00e9cision.<br>Sc\u00e9narios applicables : commutation \u00e0 haute fr\u00e9quence (comme le contr\u00f4le des signaux PLC), environnement antid\u00e9flagrant.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Delay_trigger_function\"><\/span>3.Fonction de d\u00e9clenchement \u00e0 retardement<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Module de relais temporel int\u00e9gr\u00e9, le d\u00e9lai d'action peut \u00eatre r\u00e9gl\u00e9 (par exemple 0,1s~10s) pour le contr\u00f4le du temps ou la pr\u00e9vention des d\u00e9clenchements intempestifs.<br>Exemple : d\u00e9marrage progressif du moteur, protection tampon en cas de panne de courant.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Temperature_protection_thermal_relay\"><\/span>4.Protection de la temp\u00e9rature (relais thermique)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Integrated temperature sensor or bimetal to automatically disconnect the circuit when the ambient\/load temperature exceeds the threshold value (e.g. 85\u00b0C).<br>Objets de protection : modules de puissance, transformateurs, dispositifs semi-conducteurs de haute puissance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Frequency_protection_AC_system_specific\"><\/span>5.Protection de la fr\u00e9quence (sp\u00e9cifique au syst\u00e8me AC)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Monitors AC frequency (e.g. 50\/60Hz) and triggers tripping when abnormal (\u00b15% offset) to prevent equipment damage.<br>Applications typiques : protection des g\u00e9n\u00e9rateurs connect\u00e9s au r\u00e9seau, surveillance de la sortie des onduleurs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Core_Structure_Composition\"><\/span>Structure de base Composition<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Les relais pour circuits imprim\u00e9s sont principalement compos\u00e9s des \u00e9l\u00e9ments cl\u00e9s suivants :<br>Bobine \u00e9lectromagn\u00e9tique : le composant du noyau qui g\u00e9n\u00e8re un champ magn\u00e9tique lorsqu'il est aliment\u00e9.<br>Armature (armature) : pi\u00e8ce de fer mobile entra\u00een\u00e9e par le champ magn\u00e9tique, qui commande directement l'ouverture et la fermeture des contacts.<br>Contacts : y compris les contacts normalement ouverts (NO), normalement ferm\u00e9s (NC) et communs (COM), utilis\u00e9s pour alimenter et couper le circuit.<br>M\u00e9canisme \u00e0 ressort\/r\u00e9initialisation : Ram\u00e8ne l'armature \u00e0 l'\u00e9tat initial des contacts en cas de coupure de courant.<br>Culasse :Un cadre magn\u00e9tiquement conducteur qui concentre le champ magn\u00e9tique afin d'augmenter le rendement de l'appareil.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_does_a_PCB_relay_work\"><\/span>Comment fonctionne un relais de circuit imprim\u00e9 ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Excitation_Stage\"><\/span>1. Phase d'excitation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Lorsque le circuit de commande applique une tension nominale (par exemple 5V DC\/24V DC) \u00e0 la bobine, un courant passe \u00e0 travers la bobine.<br>La bobine g\u00e9n\u00e8re un champ \u00e9lectromagn\u00e9tique qui magn\u00e9tise la culasse et attire l'armature vers le noyau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Contact_action\"><\/span>2.Action de contact<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>L'armature entra\u00eene le m\u00e9canisme de contact :<br>Contact normalement ferm\u00e9 (NC) : interrompt la connexion.<br>Contact normalement ouvert (NO) : connexion ferm\u00e9e.<br>\u00c0 ce stade, le circuit de charge est connect\u00e9 ou coup\u00e9 (selon la configuration du contact).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Reset_stage\"><\/span>3.Remise \u00e0 z\u00e9ro<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Lorsque la bobine est hors tension, le champ magn\u00e9tique dispara\u00eet et la force du ressort pousse l'armature \u00e0 se r\u00e9enclencher.<br>Les contacts reviennent \u00e0 leur \u00e9tat initial (NC ferm\u00e9, NO d\u00e9connect\u00e9).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"655\" height=\"427\" src=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/pcb-relay-2.jpg\" alt=\"Relais PCB\" class=\"wp-image-6718\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/pcb-relay-2.jpg 655w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/pcb-relay-2-300x196.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/pcb-relay-2-150x98.jpg 150w\" sizes=\"auto, (max-width: 655px) 100vw, 655px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Relay_PCB_Types\"><\/span>Types de circuits imprim\u00e9s de relais<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The \u201cPole\u201d and \u201cThrow\u201d of a relay are key parameters describing its contact configuration, which directly affects the circuit control capability. The following are common types and characteristics of PCB relays:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Single_Pole_Single_Throw_SPST_Single_Pole_Single_Throw\"><\/span>1. Unipolaire unidirectionnel (SPST, Single Pole Single Throw)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Structure : 1 jeu de contacts, 1 seule position de conduction (normalement ouverte ou normalement ferm\u00e9e).<br>Fonction :La forme la plus simple de commutation, un seul circuit peut \u00eatre aliment\u00e9.<br>Symbole :<br>\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br>\u2502 \u25cb\u2500\u2500\u2500\u2524 (Normally open type)<br>\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br>Applications typiques : commutation d'alimentation, contr\u00f4le des LED, et autres sc\u00e9narios de base on\/off.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Single_Pole_Double_Throw_SPDT_Single_Pole_Double_Throw\"><\/span>2. Unipolaire double (SPDT), <a href=\"https:\/\/topfastpcba.com\/fr\/songle-spdt-miniature-pcb-mount-relay\/\">Unipolaire \u00e0 double d\u00e9tente<\/a>)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Structure : 1 jeu de contacts, 2 positions de conduction (normalement ouvert + normalement ferm\u00e9 + borne commune).<br>Fonction :La borne commune (COM) peut \u00eatre commut\u00e9e sur deux circuits ind\u00e9pendants, r\u00e9alisant ainsi deux contr\u00f4les s\u00e9lectifs.<br>Symbole :<br>\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br>\u2502 \u25cb\u2500\u2500\u2500\u2524 (COM\u2192NO)<br>\u2502 \u25cb\u2500\u2500\u2500\u2524 (COM\u2192NC)<br>\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br>Caract\u00e9ristiques :<br>Deux \u00e9tats : ferm\u00e9 par d\u00e9faut (NC) ou d\u00e9connect\u00e9 par d\u00e9faut (NO).<br>Une br\u00e8ve d\u00e9connexion se produit lors de la commutation (Break-before-make).<br>Applications : commutation de signaux, commande de moteur en marche avant et en marche arri\u00e8re.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Double_Pole_Single_Throw_DPST_Double_Pole_Single_Throw\"><\/span>3.Double p\u00f4le unidirectionnel (DPST, Double Pole Single Throw)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Structure : 2 groupes de contacts ind\u00e9pendants, chaque groupe de 1 position de conduction (\u00e9quivalent \u00e0 deux SPST en parall\u00e8le).<br>Fonction : Commande synchronis\u00e9e de deux circuits, mais chaque groupe de contacts n'est activ\u00e9 et d\u00e9sactiv\u00e9 qu'une seule fois.<br>Symbole :<br>\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br>\u2502 \u25cb\u2500\u2500\u2500\u2524 (Contact 1)<br>\u2502 \u25cb\u2500\u2500\u2500\u2524 (Contact 2)<br>\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br>Application :Coupure simultan\u00e9e de la ligne feu\/z\u00e9ro (par exemple, interrupteur de s\u00e9curit\u00e9), contr\u00f4le de la double puissance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Double_Pole_Double_Throw_DPDT_Double_Pole_Double_Throw\"><\/span>4.Double Pole Double Throw (DPDT, Double Pole Double Throw)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Structure : 2 groupes de contacts, chaque groupe de 2 positions de conduction (\u00e9quivalent \u00e0 deux SPDT en parall\u00e8le).<br>Fonction : Commutation ind\u00e9pendante de deux circuits bidirectionnels pour soutenir une logique de commande complexe.<br>Symbole :<br>\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br>\u2502 \u25cb\u2500\u2500\u2500\u2524 (COM1\u2192NO1)<br>\u2502 \u25cb\u2500\u2500\u2500\u2524 (COM1\u2192NC1)<br>\u2502 \u25cb\u2500\u2500\u2500\u2524 (COM2\u2192NO2)<br>\u2502 \u25cb\u2500\u2500\u2500\u2524 (COM2\u2192NC2)<br>\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br>Caract\u00e9ristiques :<br>Peut contr\u00f4ler deux charges dans le sens avant\/arri\u00e8re en m\u00eame temps (par exemple, moteur CC \u00e0 pont en H).<br>Applications : automatisation industrielle, contr\u00f4le des articulations des robots.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Basic_Design_Requirements_for_PCB_Relays\"><\/span><strong>Exigences de base pour la conception des relais pour circuits imprim\u00e9s<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Pour garantir la fiabilit\u00e9 et la stabilit\u00e9 \u00e0 long terme des relais sur les circuits imprim\u00e9s, la conception doit tenir compte des \u00e9l\u00e9ments suivants <strong>s\u00e9lection des mat\u00e9riaux, optimisation de l'agencement, sp\u00e9cifications du processus<\/strong>et <strong>protection de l'environnement<\/strong>. Les principes de base de la conception sont d\u00e9crits ci-dessous :<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_PCB_Material_and_Thickness\"><\/span><strong>1. Mat\u00e9riau et \u00e9paisseur du circuit imprim\u00e9<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00c9paisseur du substrat<\/strong>:<\/li>\n\n\n\n<li><strong>Recommand\u00e9 : 1,6 mm<\/strong> (standard pour le montage \u00e0 travers le trou) pour assurer la r\u00e9sistance m\u00e9canique et minimiser la d\u00e9formation de la soudure.<\/li>\n\n\n\n<li>For high-frequency\/high-density applications, 0.8\u20131.0mm may be used (evaluate bending resistance).<\/li>\n\n\n\n<li><strong>Type de substrat<\/strong>:<\/li>\n\n\n\n<li><strong>FR-4 Verre Epoxy<\/strong>: General-purpose, heat-resistant (Tg \u2265 130\u00b0C), cost-effective.<\/li>\n\n\n\n<li><strong>CEM-1\/Papier Epoxy<\/strong>: Peu co\u00fbteux, il convient aux applications \u00e0 faible consommation d'\u00e9nergie.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Conductor_Copper_Foil_Thickness\"><\/span><strong>2.\u00c9paisseur du conducteur (feuille de cuivre)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Options standard<\/strong>:<\/li>\n\n\n\n<li><strong>35\u03bcm (1oz)<\/strong>: Traces de signaux \u00e0 faible courant (&lt;2A).<\/li>\n\n\n\n<li><strong>70\u03bcm (2oz)<\/strong>: High-current load paths (e.g., contact circuits, \u22655A) to reduce temperature rise.<\/li>\n\n\n\n<li><strong>Exigences particuli\u00e8res<\/strong>: For high-current relays (&gt;10A), consider localized copper thickening (e.g., 105\u03bcm).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Layout_and_Spacing_Specifications\"><\/span><strong>3.Sp\u00e9cifications relatives \u00e0 la disposition et \u00e0 l'espacement<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Protection contre les interf\u00e9rences \u00e9lectromagn\u00e9tiques (EMI)<\/strong>:<\/li>\n\n\n\n<li>Maintenir les bobines de relais au moins <strong>5mm de distance<\/strong> des composants sensibles (par exemple, MCU, puces ADC).<\/li>\n\n\n\n<li>Maintenir <strong>\u22652.5mm spacing<\/strong> entre les contacts haute tension et les traces de contr\u00f4le basse tension (250V AC).<\/li>\n\n\n\n<li><strong>Gestion thermique<\/strong>:<\/li>\n\n\n\n<li>\u00c9vitez de placer le produit \u00e0 proximit\u00e9 de composants g\u00e9n\u00e9rateurs de chaleur (par exemple, circuits int\u00e9gr\u00e9s de puissance, transformateurs) ou ajoutez des vias thermiques.<\/li>\n\n\n\n<li>For high-temperature environments (&gt;85\u00b0C), use heat-resistant relays (e.g., OMRON G5V series).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Mounting_and_Mechanical_Protection\"><\/span><strong>4.Montage et protection m\u00e9canique<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Processus de soudure<\/strong>:<\/li>\n\n\n\n<li><strong>Relais \u00e0 trous traversants<\/strong>: Soudure \u00e0 la vague ou \u00e0 la main, assurant des joints de soudure complets sans vides.<\/li>\n\n\n\n<li><strong>Relais SMT<\/strong>: Reflow soldering temperature profile must match relay specifications (typically \u2264260\u00b0C).<\/li>\n\n\n\n<li><strong>R\u00e9sistance aux vibrations<\/strong>:<\/li>\n\n\n\n<li>Orienter les relais de mani\u00e8re \u00e0 ce que <strong>les forces de vibration\/choc sont perpendiculaires au mouvement de l'armature<\/strong> (r\u00e9duit les d\u00e9clenchements intempestifs).<\/li>\n\n\n\n<li>Pour les environnements soumis \u00e0 de fortes vibrations (par exemple, l'automobile), utilisez des relais avec un adh\u00e9sif absorbant les chocs ou des ressorts renforc\u00e9s.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Cleaning_and_Protection\"><\/span><strong>5.Nettoyage et protection<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Nettoyage apr\u00e8s soudure<\/strong>:<\/li>\n\n\n\n<li>Utilisez de la p\u00e2te \u00e0 braser non nettoyante ou de l'alcool isopropylique pour \u00e9liminer les r\u00e9sidus de flux, afin d'\u00e9viter la corrosion par contact.<\/li>\n\n\n\n<li><strong>Rev\u00eatement conforme<\/strong>:<\/li>\n\n\n\n<li>Dans les environnements humides\/contamin\u00e9s, appliquer un rev\u00eatement protecteur (par exemple, du polyur\u00e9thane) pour couvrir les broches du relais et les traces du circuit imprim\u00e9.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Design_Pitfalls_and_Common_Mistakes\"><\/span><strong>Pi\u00e8ges de la conception et erreurs courantes<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Premi\u00e8re erreur<\/strong>: Running high-voltage contacts parallel to signal traces \u2192 causes crosstalk.<br><strong>Solution<\/strong>: Utiliser le routage orthogonal ou ajouter des fentes d'isolation.<\/li>\n\n\n\n<li><strong>Erreur 2<\/strong>: Insufficient coil drive current \u2192 incomplete contact engagement.<br><strong>Solution<\/strong>: S'assurer que le circuit d'entra\u00eenement fournit une tension\/un courant nominal (par exemple, 5V\/20mA).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Relay_Selection_Reference_Table\"><\/span><strong>Tableau de r\u00e9f\u00e9rence pour la s\u00e9lection des relais<\/strong><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><strong>Param\u00e8tres<\/strong><\/th><th><strong>Valeur\/m\u00e9thode recommand\u00e9e<\/strong><\/th><th><strong>Notes<\/strong><\/th><\/tr><\/thead><tbody><tr><td>\u00c9paisseur du circuit imprim\u00e9<\/td><td>1,6 mm (trou de passage)<\/td><td>Augmentation \u00e0 2,0 mm pour les vibrations \u00e9lev\u00e9es<\/td><\/tr><tr><td>\u00c9paisseur du cuivre<\/td><td>\u226570\u03bcm for contacts, 35\u03bcm for coil<\/td><td>\u00c9paissir les trajectoires des courants forts<\/td><\/tr><tr><td>Espacement des bobines et des contacts<\/td><td>\u22655mm (low voltage) or per rating<\/td><td>\u22652.5mm for 250V AC<\/td><\/tr><tr><td>Temp\u00e9rature de soudure<\/td><td>\u2264260\u00b0C (SMT)<\/td><td>V\u00e9rifier la fiche technique du relais<\/td><\/tr><\/tbody><\/table><\/figure>\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\/PCB-Relay-2-1.jpg\" alt=\"Relais PCB\" class=\"wp-image-6719\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/PCB-Relay-2-1.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/PCB-Relay-2-1-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/PCB-Relay-2-1-150x101.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=\"PCB_Relay_Mounting_Techniques\"><\/span><strong>Techniques de montage des relais sur circuit imprim\u00e9<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"I_Soldering_Process_Specifications\"><\/span><strong>I. Sp\u00e9cifications du processus de brasage<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u00e9thodes de soudage<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Soudure manuelle<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Utiliser un 30- 6<strong>Fer \u00e0 souder 0W<\/strong> avec un embout propre.<\/li>\n\n\n\n<li>Maintenir la temp\u00e9rature de la pointe \u00e0 <strong>350\u00b0C max<\/strong> pour \u00e9viter tout dommage thermique.<\/li>\n\n\n\n<li>Souder chaque broche pour <strong>\u22643 seconds<\/strong> pour \u00e9viter la surchauffe.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Brasage automatis\u00e9<\/strong>:\n<ul class=\"wp-block-list\">\n<li><strong>Soudure \u00e0 la vague<\/strong>:<\/li>\n\n\n\n<li>R\u00e9gler la hauteur de la vague de soudure pour \u00e9viter tout d\u00e9bordement sur le circuit imprim\u00e9.<\/li>\n\n\n\n<li>Profil standard : <strong>260\u00b0C (\u00b15\u00b0C) for 6 seconds<\/strong>.<\/li>\n\n\n\n<li><strong>Soudure par refusion (SMT)<\/strong>:<\/li>\n\n\n\n<li>Respecter les courbes de temp\u00e9rature sp\u00e9cifiques aux relais (typiquement les valeurs de cr\u00eate <strong>\u2264260\u00b0C<\/strong>).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Notes critiques<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Circuits imprim\u00e9s multicouches<\/strong>: Une masse thermique plus \u00e9lev\u00e9e peut n\u00e9cessiter un pr\u00e9chauffage prolong\u00e9 pour assurer une bonne formation du joint de soudure.<\/li>\n\n\n\n<li><strong>Application du flux<\/strong>: Utiliser un flux sans nettoyage pour minimiser les r\u00e9sidus de soudure.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"II_Installation_Electrical_Connection\"><\/span><strong>II.Installation &amp;amp ; Raccordement \u00e9lectrique<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Types de montage<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Trou de passage (THT)<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Les broches sont ins\u00e9r\u00e9es dans les trous perc\u00e9s et soud\u00e9es sur le c\u00f4t\u00e9 oppos\u00e9.<\/li>\n\n\n\n<li>Assure une forte adh\u00e9rence m\u00e9canique dans les environnements soumis \u00e0 de fortes vibrations.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Montage en surface (SMT)<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Soud\u00e9 par refusion directement sur les plaquettes ; id\u00e9al pour les conceptions compactes.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Lignes directrices pour le c\u00e2blage<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bornes de la bobine<\/strong>: Connecter aux signaux de contr\u00f4le (par exemple, MCU GPIO) avec des r\u00e9sistances de limitation de courant si n\u00e9cessaire.<\/li>\n\n\n\n<li><strong>Bornes de contact<\/strong>:\n<ul class=\"wp-block-list\">\n<li><strong>NO\/NC\/COM<\/strong> les broches c\u00e2bl\u00e9es en s\u00e9rie avec les circuits de charge (moteurs, lampes).<\/li>\n\n\n\n<li>S'assurer que la largeur de la trace est compatible avec le courant de charge (par ex, <strong>70\u03bcm Cu for 5A+<\/strong>).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Exigences en mati\u00e8re d'isolement<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Maintenir <strong>\u22652.5mm creepage distance<\/strong> entre la bobine et les contacts haute tension (250V AC).<\/li>\n\n\n\n<li>V\u00e9rifier la rigidit\u00e9 di\u00e9lectrique (<strong>1kV+ isolation<\/strong>) entre les circuits de commande et de charge.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"III_Post-Installation_Steps\"><\/span><strong>III.\u00c9tapes post\u00e9rieures \u00e0 l'installation<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Refroidissement &amp;amp ; Nettoyage<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Laisser la carte refroidir naturellement ; \u00e9viter le refroidissement forc\u00e9 afin d'\u00e9viter toute contrainte thermique.<\/li>\n\n\n\n<li>Nettoyer les r\u00e9sidus de flux avec de l'alcool isopropylique (IPA) si un flux non nettoyant est utilis\u00e9.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Inspection et essais<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Contr\u00f4le visuel<\/strong>: V\u00e9rifier que les joints de soudure sont brillants, concaves et exempts de ponts ou de fissures.<\/li>\n\n\n\n<li><strong>Test de continuit\u00e9<\/strong>Utiliser un multim\u00e8tre pour confirmer :\n<ul class=\"wp-block-list\">\n<li>La r\u00e9sistance de la bobine correspond aux valeurs de la fiche technique.<\/li>\n\n\n\n<li>La continuit\u00e9 du contact (\u00e9tats NO\/NC) se d\u00e9clenche correctement lorsqu'il est sous tension.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"IV_Common_Pitfalls_Solutions\"><\/span><strong>IV.Pi\u00e8ges courants et solutions<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Enjeu<\/strong><\/th><th><strong>Cause<\/strong><\/th><th><strong>Solution<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Ponts de soudure<\/strong><\/td><td>Exc\u00e8s de soudure ou d\u00e9faut d'alignement<\/td><td>Ajuster l'\u00e9paisseur du pochoir\/le profil de d\u00e9bordement<\/td><\/tr><tr><td><strong>Relais surchauff\u00e9<\/strong><\/td><td>Temps de soudure prolong\u00e9<\/td><td>Strictly limit soldering to \u22643s per pin<\/td><\/tr><tr><td><strong>Contact intermittent<\/strong><\/td><td>Mauvais joint de soudure ou contamination<\/td><td>Refusion\/retouche avec un nouveau flux<\/td><\/tr><\/tbody><\/table><\/figure>\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\/PCB-Relay-3.jpg\" alt=\"\" class=\"wp-image-6720\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/PCB-Relay-3.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/PCB-Relay-3-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/05\/PCB-Relay-3-150x101.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=\"Testing_PCB_Relays\"><\/span>Test des relais de circuits imprim\u00e9s<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Lorsqu'un relais n'est pas aliment\u00e9, le NO et le NC restent respectivement ouverts et ferm\u00e9s. Un multim\u00e8tre est n\u00e9cessaire pour tester le relais. Ensuite, vous pouvez vous r\u00e9f\u00e9rer aux \u00e9tapes suivantes pour tester le relais du circuit imprim\u00e9 :<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Vous devez r\u00e9gler le multim\u00e8tre en mode contr\u00f4le de continuit\u00e9.<\/li>\n\n\n\n<li>Vous devez tester la continuit\u00e9 entre les contacts NC et les p\u00f4les.<\/li>\n\n\n\n<li>Il faut v\u00e9rifier la discontinuit\u00e9 entre les contacts normalement ouverts et les p\u00f4les.<\/li>\n\n\n\n<li>Ensuite, mettez le relais sous tension pour alimenter la bobine. Un d\u00e9clic se fait alors entendre. En effet, les contacts passent de la position normalement ferm\u00e9e (NC) \u00e0 la position normalement ouverte (NO) en r\u00e9ponse au champ magn\u00e9tique.<\/li>\n\n\n\n<li>Vous devez v\u00e9rifier la continuit\u00e9 entre les contacts normalement ouverts et les p\u00f4les.<\/li>\n\n\n\n<li>V\u00e9rifier qu'il n'y a pas de discontinuit\u00e9 entre le contact NF et le p\u00f4le.<\/li>\n\n\n\n<li>Enfin, mesurez la r\u00e9sistance de la bobine \u00e0 l'aide d'un multim\u00e8tre. V\u00e9rifiez qu'elle correspond \u00e0 la r\u00e9sistance indiqu\u00e9e sur le relais du fabricant.<\/li>\n<\/ol>\n\n\n\n<p>Les relais pour circuits imprim\u00e9s peuvent \u00eatre utilis\u00e9s comme syst\u00e8me de protection pour l'ensemble d'un circuit.Bien que de petite taille, ils prot\u00e8gent efficacement l'ensemble du syst\u00e8me contre les dommages et fonctionnent selon le m\u00eame principe que les relais de taille standard.La conception des circuits imprim\u00e9s n\u00e9cessite une prise en compte compl\u00e8te de tous les aspects des relais pour circuits imprim\u00e9s.<\/p>\n\n\n\n<p>Vous avez besoin d'aide ?Contactez nous \u00e0 l'adresse suivante <a href=\"mailto:op@topfastpcb.com\">op@topfastpcb.com<\/a><br>Besoin d'un devis pour un PCB ou un PCBA ? <a href=\"https:\/\/topfastpcba.com\/fr\/contact\/\">Demander un devis<\/a>!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Related_reading\"><\/span><strong>Lecture associ\u00e9e<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>1.<a href=\"https:\/\/topfastpcba.com\/fr\/songle-spdt-miniature-pcb-mount-relay\/\">Songle Spdt Miniature PCB Mount Relay<\/a><br>2.<a href=\"https:\/\/topfastpcba.com\/fr\/12v-spdt-super-miniature-pcb-mount-relay\/\">12v Spdt Super Miniature PCB Mount Relay<\/a><br>3.<a href=\"https:\/\/topfastpcba.com\/fr\/songle-spdt-5-pin-miniature-pcb-mount-relay\/\">Songle Spdt 5 Pin Miniature PCB Mount Relay<\/a><br>4.<a href=\"https:\/\/topfastpcba.com\/fr\/5-pin-relay\/\">Relais \u00e0 5 broches<\/a><br>5.<a href=\"https:\/\/topfastpcba.com\/fr\/30-amp-relay\/\">Relais 30 amp\u00e8res<\/a><br>6.<a href=\"https:\/\/topfastpcba.com\/fr\/voltage-sensing-relay\/\">Relais de d\u00e9tection de tension<\/a><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Apprenez tout sur les relais pour circuits imprim\u00e9s &amp;#8211 ; leur fonctionnement, les types (SPST, SPDT, DPST, DPDT), les techniques de montage et les meilleures pratiques en mati\u00e8re de conception.<\/p>","protected":false},"author":2,"featured_media":6716,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[52],"class_list":["post-6715","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-pcb"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - 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