{"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\/pt\/5-pin-relay\/","title":{"rendered":"Rel\u00e9 de 5 pinos"},"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\">\u00cdndice<\/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\/pt\/5-pin-relay\/#What_is_a_5-pin_relay\" >O que \u00e9 um rel\u00e9 de 5 pinos?<\/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\/pt\/5-pin-relay\/#1Structure\" >1.Estrutura<\/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\/pt\/5-pin-relay\/#2Types\" >2.Tipos<\/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\/pt\/5-pin-relay\/#5-Pin_Relay_Pinout_and_Functions_Explained\" >Pinagem e fun\u00e7\u00f5es do rel\u00e9 de 5 pinos explicadas<\/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\/pt\/5-pin-relay\/#Operation_Logic\" >L\u00f3gica de opera\u00e7\u00e3o<\/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\/pt\/5-pin-relay\/#Advantages_and_Disadvantages_of_5-Pin_Relays\" >Vantagens e desvantagens dos rel\u00e9s de 5 pinos<\/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\/pt\/5-pin-relay\/#1Key_Advantages\" >1. principais vantagens<\/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\/pt\/5-pin-relay\/#2Main_Disadvantages\" >2. principais desvantagens<\/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\/pt\/5-pin-relay\/#3Usage_Recommendations\" >3.Recomenda\u00e7\u00f5es de uso<\/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\/pt\/5-pin-relay\/#Working_Principle_of_a_5-Pin_Relay\" >Princ\u00edpio de funcionamento de um rel\u00e9 de 5 pinos<\/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\/pt\/5-pin-relay\/#5-Pin_Relay_Connection_Guide_Safe_Installation_Procedure\" >Guia de conex\u00e3o de rel\u00e9 de 5 pinos (procedimento de instala\u00e7\u00e3o segura)<\/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\/pt\/5-pin-relay\/#1_Safety_Preparation\" >1. Prepara\u00e7\u00e3o para a seguran\u00e7a<\/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\/pt\/5-pin-relay\/#2_Standard_Wiring_Procedure\" >2.Procedimento de fia\u00e7\u00e3o padr\u00e3o<\/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\/pt\/5-pin-relay\/#3_Enhanced_Protection_Measures\" >3.Medidas de prote\u00e7\u00e3o aprimoradas<\/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\/pt\/5-pin-relay\/#4_Verification_Testing\" >4.Verifica\u00e7\u00e3o e teste<\/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\/pt\/5-pin-relay\/#Professional_Tips\" >Dicas profissionais:<\/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\/pt\/5-pin-relay\/#How_to_test_a_5-pin_relay\" >Como testar um rel\u00e9 de 5 pinos<\/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\/pt\/5-pin-relay\/#1_Identify_the_pins\" >1. Identifique os pinos<\/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\/pt\/5-pin-relay\/#2_Measuring_contact_resistance\" >2.Medi\u00e7\u00e3o da resist\u00eancia de contato<\/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\/pt\/5-pin-relay\/#3_Detecting_coil_voltage\" >3.Detec\u00e7\u00e3o da tens\u00e3o da bobina<\/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\/pt\/5-pin-relay\/#4_Functional_Test\" >4.Teste funcional<\/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\/pt\/5-pin-relay\/#5-Pin_Relay_Applications_in_PCBA_Design\" >Aplica\u00e7\u00f5es de rel\u00e9s de 5 pinos em projetos de PCBA<\/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\/pt\/5-pin-relay\/#1_Layout_Considerations\" >1. Considera\u00e7\u00f5es sobre o layout<\/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\/pt\/5-pin-relay\/#2_Electrical_Interconnection\" >2.Interconex\u00e3o el\u00e9trica<\/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\/pt\/5-pin-relay\/#3_Driver_Circuit_Implementation\" >3.Implementa\u00e7\u00e3o do circuito do driver<\/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\/pt\/5-pin-relay\/#4_EMI_Mitigation_Techniques\" >4.T\u00e9cnicas de atenua\u00e7\u00e3o de EMI<\/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\/pt\/5-pin-relay\/#5_Load_Matching_Methodology\" >5.Metodologia de correspond\u00eancia de carga<\/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\/pt\/5-pin-relay\/#1_Electrical_Parameter_Matching_Principles\" >1.Princ\u00edpios de correspond\u00eancia de par\u00e2metros el\u00e9tricos<\/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\/pt\/5-pin-relay\/#2_Installation_Standards\" >2.Padr\u00f5es de instala\u00e7\u00e3o<\/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\/pt\/5-pin-relay\/#3_Operation_and_Maintenance\" >3.Opera\u00e7\u00e3o e manuten\u00e7\u00e3o<\/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\/pt\/5-pin-relay\/#4_Safety_Operation_Procedures\" >4.Procedimentos de opera\u00e7\u00e3o de seguran\u00e7a<\/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\/pt\/5-pin-relay\/#5_Failure_Prevention_Measures\" >5.Medidas de preven\u00e7\u00e3o de falhas<\/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\/pt\/5-pin-relay\/#5-Pin_Relay_Application_Scope\" >Escopo de aplica\u00e7\u00e3o do rel\u00e9 de 5 pinos<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_5-pin_relay\"><\/span>O que \u00e9 um rel\u00e9 de 5 pinos?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Um rel\u00e9 de 5 pinos \u00e9 um dispositivo de controle eletr\u00f4nico com cinco pinos, amplamente utilizado no controle de comuta\u00e7\u00e3o de v\u00e1rios circuitos eletr\u00f4nicos. Os cinco pinos correspondem a diferentes conex\u00f5es el\u00e9tricas, e o controle liga-desliga do circuito \u00e9 realizado por meio do princ\u00edpio eletromagn\u00e9tico.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1Structure\"><\/span>1.Estrutura<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>N\u00facleo de ferro: <\/strong>Como componente central do sistema eletromagn\u00e9tico, ele \u00e9 respons\u00e1vel por conduzir e concentrar as linhas de for\u00e7a magn\u00e9ticas.<br><strong>Sistema de contato:<\/strong> cont\u00e9m contatos din\u00e2micos e est\u00e1ticos, respons\u00e1veis pelo controle liga-desliga do circuito principal.<br><strong>Bobina eletromagn\u00e9tica:<\/strong> gera for\u00e7a eletromagn\u00e9tica depois de energizado e aciona a a\u00e7\u00e3o do contato.<br>Carca\u00e7a: fornece prote\u00e7\u00e3o mec\u00e2nica e isolamento el\u00e9trico<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2Types\"><\/span>2.Tipos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>De acordo com a configura\u00e7\u00e3o do contato, podem ser divididos em<br><strong>Tipo de contato \u00fanico:<\/strong> um conjunto de contatos normalmente abertos ou normalmente fechados.<br><strong>Tipo de contato duplo:<\/strong> incluindo dois conjuntos de contatos normalmente abertos e normalmente fechados.<br><strong>Tipo de m\u00faltiplos contatos: <\/strong>adequado para cen\u00e1rios de controle complexos.<br>Em aplica\u00e7\u00f5es pr\u00e1ticas, \u00e9 necess\u00e1rio selecionar o modelo de rel\u00e9 adequado de acordo com as caracter\u00edsticas da carga (corrente\/tens\u00e3o), os par\u00e2metros do sinal de controle, o espa\u00e7o de instala\u00e7\u00e3o e outros fatores. Requisitos especiais, como resist\u00eancia \u00e0 vibra\u00e7\u00e3o e veda\u00e7\u00e3o, tamb\u00e9m devem ser considerados para condi\u00e7\u00f5es especiais de trabalho.<\/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=\"Rel\u00e9 de 5 pinos\" 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>Pinagem e fun\u00e7\u00f5es do rel\u00e9 de 5 pinos explicadas<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Um rel\u00e9 de 5 pinos normalmente tem cinco terminais rotulados <strong>30, 85, 86, 87<\/strong>e <strong>87a<\/strong>Cada um deles tem uma fun\u00e7\u00e3o el\u00e9trica espec\u00edfica, como segue:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Pino<\/th><th>Fun\u00e7\u00e3o<\/th><th>Conex\u00e3o t\u00edpica<\/th><\/tr><\/thead><tbody><tr><td><strong>30<\/strong><\/td><td><strong>Entrada de energia principal<\/strong>conectado diretamente \u00e0 bateria ou \u00e0 fonte de alimenta\u00e7\u00e3o com fus\u00edvel<\/td><td>Alimenta\u00e7\u00e3o principal do ve\u00edculo (+12V\/24V)<\/td><\/tr><tr><td><strong>85<\/strong><\/td><td><strong>Entrada de energia do circuito de controle<\/strong>recebe sinal de um interruptor ou m\u00f3dulo de controle<\/td><td>Conectado a uma chave de controle (por exemplo, chave de igni\u00e7\u00e3o, sinal da ECU)<\/td><\/tr><tr><td><strong>86<\/strong><\/td><td><strong>Terra do circuito de controle<\/strong>completa o circuito da bobina com o pino <strong>85<\/strong><\/td><td>Conectado ao aterramento do ve\u00edculo (chassi)<\/td><\/tr><tr><td><strong>87<\/strong><\/td><td><strong>Contato normalmente fechado (NC)<\/strong>, conectado a <strong>30<\/strong> quando o rel\u00e9 \u00e9 desenergizado e abre quando \u00e9 energizado<\/td><td>Conecta-se a uma carga ativa padr\u00e3o<\/td><\/tr><tr><td><strong>87a<\/strong><\/td><td><strong>Contato normalmente aberto (NA)<\/strong>, desconectado de <strong>30<\/strong> quando desenergizado, e fecha quando energizado<\/td><td>Conecta-se a uma carga que \u00e9 ativada somente quando alimentada<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Operation_Logic\"><\/span><strong>L\u00f3gica de opera\u00e7\u00e3o<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Estado desenergizado<\/strong> (bobina n\u00e3o alimentada):<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>30 \u2194 87<\/strong> fechado (NC)<\/li>\n\n\n\n<li><strong>30 \u2194 87a<\/strong> aberto (NO)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Estado energizado<\/strong> (85-86 alimentado, ativado por bobina):<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>30 \u2194 87<\/strong> abre<\/li>\n\n\n\n<li><strong>30 \u2194 87a<\/strong> fecha<\/li>\n<\/ul>\n\n\n\n<p>Esse design permite que o <a href=\"https:\/\/topfastpcba.com\/pt\/songle-spdt-5-pin-miniature-pcb-mount-relay\/\">Rel\u00e9 de 5 pinos<\/a> para executar <strong>comuta\u00e7\u00e3o de circuitos<\/strong> (por exemplo, far\u00f3is, controle do ventilador) e, ao mesmo tempo, oferece suporte a <strong>comuta\u00e7\u00e3o de carga dupla<\/strong> (por exemplo, ventiladores de alta\/baixa velocidade, avan\u00e7o\/retrocesso do motor, 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>Vantagens e desvantagens dos rel\u00e9s de 5 pinos<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. principais vantagens<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Capacidade de controle de m\u00faltiplos circuitos<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pode controlar v\u00e1rios circuitos independentes simultaneamente para opera\u00e7\u00f5es de comuta\u00e7\u00e3o complexas<\/li>\n\n\n\n<li>Suporta as configura\u00e7\u00f5es de contato Normalmente Aberto (NO) e Normalmente Fechado (NC)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Alta capacidade de carga<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Manuseio t\u00edpico de carga: 10-40A, adequado para dispositivos de alta pot\u00eancia<\/li>\n\n\n\n<li>Compat\u00edvel com v\u00e1rios n\u00edveis de tens\u00e3o (12V\/24V\/220V CA\/CC)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ampla gama de aplica\u00e7\u00f5es<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sistemas de controle de automa\u00e7\u00e3o industrial<\/li>\n\n\n\n<li>Eletr\u00f4nicos automotivos (por exemplo, far\u00f3is, ventiladores de arrefecimento)<\/li>\n\n\n\n<li>Controle de dispositivos dom\u00e9sticos inteligentes<\/li>\n\n\n\n<li>Equipamento de prote\u00e7\u00e3o do sistema de energia<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2Main_Disadvantages\"><\/span>2. principais desvantagens<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Maior complexidade de fia\u00e7\u00e3o<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Requer a identifica\u00e7\u00e3o correta de todos os 5 terminais (30\/85\/86\/87\/87a)<\/li>\n\n\n\n<li>A fia\u00e7\u00e3o incorreta pode causar falha no rel\u00e9 ou danos ao equipamento<\/li>\n\n\n\n<li>Frequentemente requer refer\u00eancia a diagramas de fia\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Considera\u00e7\u00f5es sobre custos<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>O custo unit\u00e1rio \u00e9 de 2 a 5 vezes maior do que o dos interruptores simples<\/li>\n\n\n\n<li>Despesas adicionais com fia\u00e7\u00e3o para integra\u00e7\u00e3o do sistema<\/li>\n\n\n\n<li>Pre\u00e7o significativamente mais alto para modelos de alta corrente<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Outras limita\u00e7\u00f5es<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Os contatos mec\u00e2nicos t\u00eam vida \u00fatil limitada (~100.000 opera\u00e7\u00f5es)<\/li>\n\n\n\n<li>Gera interfer\u00eancia eletromagn\u00e9tica durante a comuta\u00e7\u00e3o<\/li>\n\n\n\n<li>Mais volumosos do que os rel\u00e9s de estado s\u00f3lido<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3Usage_Recommendations\"><\/span>3.Recomenda\u00e7\u00f5es de uso<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Ideal para o controle confi\u00e1vel de cargas de pot\u00eancia m\u00e9dia a alta. Para aplica\u00e7\u00f5es de controle simples de baixa pot\u00eancia, solu\u00e7\u00f5es mais econ\u00f4micas podem ser prefer\u00edveis. A instala\u00e7\u00e3o profissional deve usar terminais claramente identificados com isolamento adequado.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Working_Principle_of_a_5-Pin_Relay\"><\/span>Princ\u00edpio de funcionamento de um rel\u00e9 de 5 pinos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Um rel\u00e9 de 5 pinos opera por meio de uma a\u00e7\u00e3o de comuta\u00e7\u00e3o eletromagn\u00e9tica, seguindo esta sequ\u00eancia:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Estado padr\u00e3o (desenergizado)<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A armadura interna do rel\u00e9 \u00e9 mantida por uma mola<\/li>\n\n\n\n<li><strong>O terminal 30 conecta-se ao 87<\/strong> (Circuito normalmente fechado)<\/li>\n\n\n\n<li><strong>O terminal 30 se desconecta de 87a<\/strong> (Circuito normalmente aberto)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ativa\u00e7\u00e3o (bobina energizada)<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Quando a energia \u00e9 aplicada nos pinos <strong>85 (+)<\/strong> e <strong>86 (-)<\/strong>:<\/li>\n\n\n\n<li>A bobina do eletro\u00edm\u00e3 gera um campo magn\u00e9tico<\/li>\n\n\n\n<li>A for\u00e7a magn\u00e9tica supera a tens\u00e3o da mola<\/li>\n\n\n\n<li>A armadura se move fisicamente, causando:\n<ul class=\"wp-block-list\">\n<li><strong>30 desconex\u00f5es de 87<\/strong> (O circuito NF abre)<\/li>\n\n\n\n<li><strong>30 conecta-se ao 87a<\/strong> (O circuito N\u00c3O fecha)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Desativa\u00e7\u00e3o (bobina desenergizada)<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Quando a energia \u00e9 removida da bobina:<\/li>\n\n\n\n<li>O campo magn\u00e9tico entra em colapso instantaneamente<\/li>\n\n\n\n<li>A mola retorna a armadura para a posi\u00e7\u00e3o padr\u00e3o<\/li>\n\n\n\n<li>Todos os contatos voltam ao seu estado original<\/li>\n<\/ul>\n\n\n\n<p><strong>Principais caracter\u00edsticas:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Comuta\u00e7\u00e3o r\u00e1pida<\/strong>: Tempo de resposta t\u00edpico de 5 a 15 ms<\/li>\n\n\n\n<li><strong>Clique aud\u00edvel<\/strong>: O movimento mec\u00e2nico produz um som caracter\u00edstico<\/li>\n\n\n\n<li><strong>Controle isolado<\/strong>: O circuito da bobina de baixa pot\u00eancia (normalmente 12V\/24V CC) controla o circuito de carga de alta pot\u00eancia (at\u00e9 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=\"Rel\u00e9 de 5 pinos\" 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>Guia de conex\u00e3o de rel\u00e9 de 5 pinos (procedimento de instala\u00e7\u00e3o segura)<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. Prepara\u00e7\u00e3o para a seguran\u00e7a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Isolamento de energia<\/strong>: Verifique se todas as fontes de alimenta\u00e7\u00e3o est\u00e3o desconectadas usando um mult\u00edmetro<\/li>\n\n\n\n<li><strong>Prepara\u00e7\u00e3o de ferramentas<\/strong>: Prepare ferramentas isoladas (l\u00e2mpada de teste de 12V, decapadores de fios)<\/li>\n\n\n\n<li><strong>Inspe\u00e7\u00e3o do rel\u00e9<\/strong>: Verifique as especifica\u00e7\u00f5es do rel\u00e9 (tens\u00e3o\/corrente da bobina, classifica\u00e7\u00e3o do contato)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Standard_Wiring_Procedure\"><\/span>2.Procedimento de fia\u00e7\u00e3o padr\u00e3o<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>Ponto de conex\u00e3o<\/th><th>Especifica\u00e7\u00e3o da fia\u00e7\u00e3o<\/th><\/tr><\/thead><tbody><tr><td><strong>Pino 30<\/strong><\/td><td>Connect to fused power source (max current \u2264 relay rating)<\/td><\/tr><tr><td><strong>Pino 85<\/strong><\/td><td>Link para a sa\u00edda do interruptor de controle (disparo positivo)<\/td><\/tr><tr><td><strong>Pino 86<\/strong><\/td><td>Route to reliable ground point (resistance &lt;0.5\u03a9)<\/td><\/tr><tr><td><strong>Pino 87<\/strong><\/td><td>Fio para dispositivo de carga NF (normalmente fechado)<\/td><\/tr><tr><td><strong>Pino 87a<\/strong><\/td><td>Conecte ao dispositivo de carga NO (Normalmente Aberto)<\/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.Medidas de prote\u00e7\u00e3o aprimoradas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Prote\u00e7\u00e3o contra sobrecorrente<\/strong>: Instale um fus\u00edvel de sopro r\u00e1pido (125% da corrente de carga) no pino 30<\/li>\n\n\n\n<li><strong>Supress\u00e3o de tens\u00e3o<\/strong>: Adicione um diodo flyback (1N4007) nos pinos da bobina (85-86)<\/li>\n\n\n\n<li><strong>Prote\u00e7\u00e3o de contato<\/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.Verifica\u00e7\u00e3o e teste<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Verifica\u00e7\u00e3o de pr\u00e9-energiza\u00e7\u00e3o<\/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>Teste operacional<\/strong>:<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aplique a tens\u00e3o de controle (me\u00e7a a corrente da bobina 40-100mA tipicamente)<\/li>\n\n\n\n<li>Verifique a transi\u00e7\u00e3o do contato (clique aud\u00edvel em 20 ms)<\/li>\n\n\n\n<li>Medi\u00e7\u00e3o da corrente de carga (deve corresponder \u00e0s especifica\u00e7\u00f5es do dispositivo)<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Professional_Tips\"><\/span>Dicas profissionais:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Para aplica\u00e7\u00f5es automotivas: Use um soquete de rel\u00e9 com classifica\u00e7\u00e3o IP67<\/li>\n\n\n\n<li>Ambientes com alta vibra\u00e7\u00e3o:Aplique trava-roscas nos parafusos dos terminais<\/li>\n\n\n\n<li>Sistemas cr\u00edticos:Implementar configura\u00e7\u00e3o de rel\u00e9 redundante<\/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>Como testar um rel\u00e9 de 5 pinos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>O m\u00e9todo de medi\u00e7\u00e3o do estado bom ou ruim do rel\u00e9 de cinco pinos inclui principalmente as seguintes etapas:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Identify_the_pins\"><\/span>1. Identifique os pinos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Primeiro, \u00e9 necess\u00e1rio identificar os dois pinos da bobina e os tr\u00eas pinos de contato do rel\u00e9 de cinco pinos. Os pinos da bobina geralmente t\u00eam uma tens\u00e3o alta (por exemplo, 12 V ou 24 V), enquanto os pinos de contato t\u00eam uma tens\u00e3o relativamente baixa (faixa de 0 a 5 V).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Measuring_contact_resistance\"><\/span>2.Medi\u00e7\u00e3o da resist\u00eancia de contato<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Usando a configura\u00e7\u00e3o de resist\u00eancia de um mult\u00edmetro, me\u00e7a a resist\u00eancia de cada contato em rela\u00e7\u00e3o aos outros contatos e a si mesmo.Em circunst\u00e2ncias normais, dois contatos quaisquer devem apresentar uma grande resist\u00eancia entre eles, indicando que n\u00e3o formam um caminho. Se a resist\u00eancia for baixa, pode haver um curto-circuito. Ao mesmo tempo, a resist\u00eancia de um \u00fanico contato por si s\u00f3 tamb\u00e9m deve ser grande, caso contr\u00e1rio, isso pode indicar que h\u00e1 um curto-circuito entre o contato e o inv\u00f3lucro do rel\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Detecting_coil_voltage\"><\/span>3.Detec\u00e7\u00e3o da tens\u00e3o da bobina<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Detecte a tens\u00e3o nos pinos da bobina usando a engrenagem de tens\u00e3o do mult\u00edmetro.Se a tens\u00e3o for detectada, a bobina est\u00e1 em boas condi\u00e7\u00f5es; se n\u00e3o houver tens\u00e3o, isso pode significar que a bobina est\u00e1 desconectada.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Functional_Test\"><\/span>4.Teste funcional<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Se todas as medi\u00e7\u00f5es acima estiverem de acordo com o esperado, o rel\u00e9 poder\u00e1 ser conectado ao circuito para testes funcionais adicionais, a fim de verificar se ele consegue engatar e soltar os contatos corretamente.<br>Preste aten\u00e7\u00e3o aos seguintes aspectos durante a medi\u00e7\u00e3o:<br>Certifique-se de que a medi\u00e7\u00e3o seja realizada em um estado desligado para evitar o perigo de choque el\u00e9trico.<br>Mantenha as duas m\u00e3os e a sonda do mult\u00edmetro isoladas das partes met\u00e1licas do rel\u00e9 durante a medi\u00e7\u00e3o.<br>Se forem encontradas condi\u00e7\u00f5es anormais, como valor de resist\u00eancia anormal, aus\u00eancia de tens\u00e3o, etc., o rel\u00e9 ou os circuitos relacionados devem ser verificados com mais aten\u00e7\u00e3o.<\/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>Aplica\u00e7\u00f5es de rel\u00e9s de 5 pinos em <a href=\"https:\/\/topfastpcba.com\/pt\/pcb-assembly\/\">PCBA<\/a> Design<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. Considera\u00e7\u00f5es sobre o layout<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Posicionamento estrat\u00e9gico<\/strong>:<\/li>\n\n\n\n<li>Posicione pr\u00f3ximo \u00e0 borda da placa para facilitar a manuten\u00e7\u00e3o<\/li>\n\n\n\n<li>Dist\u00e2ncia m\u00ednima de 5 mm dos circuitos anal\u00f3gicos sens\u00edveis<\/li>\n\n\n\n<li>Orienta\u00e7\u00e3o paralela aos tra\u00e7os de energia para minimizar a \u00e1rea de loop<\/li>\n\n\n\n<li><strong>Gerenciamento t\u00e9rmico<\/strong>:<\/li>\n\n\n\n<li>Evite coloc\u00e1-lo pr\u00f3ximo a componentes que geram calor<\/li>\n\n\n\n<li>Fornecer al\u00edvio de cobre adequado para a dissipa\u00e7\u00e3o de energia da bobina<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Electrical_Interconnection\"><\/span>2.Interconex\u00e3o el\u00e9trica<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Roteamento de terminais<\/strong>:<\/li>\n\n\n\n<li>Largura de rastreamento de 30-40mil para caminhos de carga (10A+)<\/li>\n\n\n\n<li>Camadas separadas de roteamento de alta corrente (&gt;5A) e de n\u00edvel de sinal<\/li>\n\n\n\n<li>Implementar aterramento em estrela para terminais de bobina\/comum<\/li>\n\n\n\n<li><strong>Circuitos de prote\u00e7\u00e3o<\/strong>:<\/li>\n\n\n\n<li>Diodos TVS para comuta\u00e7\u00e3o de cargas indutivas<\/li>\n\n\n\n<li>Supress\u00e3o de ARC para contatos (redes RC\/MOVs)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Driver_Circuit_Implementation\"><\/span>3.Implementa\u00e7\u00e3o do circuito do driver<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>Tipo de MCU<\/th><th>Solu\u00e7\u00e3o de driver<\/th><th>Ganho atual<\/th><\/tr><\/thead><tbody><tr><td>STM32F1<\/td><td>MOSFET 2N7002<\/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 n\u00edvel l\u00f3gico<\/td><td>15:1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Notas de design<\/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>Implementar diodos flyback (1N4148 para &lt;500mA)<\/li>\n\n\n\n<li>Fornecer desacoplamento do CI do driver (cer\u00e2mica de 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.T\u00e9cnicas de atenua\u00e7\u00e3o de EMI<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Solu\u00e7\u00f5es em n\u00edvel de diretoria<\/strong>:<\/li>\n\n\n\n<li>An\u00e9is de prote\u00e7\u00e3o ao redor da bobina do rel\u00e9<\/li>\n\n\n\n<li>Empilhamento de quatro camadas com plano de aterramento dedicado<\/li>\n\n\n\n<li>Contas de ferrite nas linhas de alimenta\u00e7\u00e3o da bobina<\/li>\n\n\n\n<li><strong>Sele\u00e7\u00e3o de componentes<\/strong>:<\/li>\n\n\n\n<li>Opte por modelos de rel\u00e9s selados (s\u00e9rie RT1)<\/li>\n\n\n\n<li>Prefira contatos banhados a ouro para uma comuta\u00e7\u00e3o de baixo ru\u00eddo<\/li>\n\n\n\n<li>Selecione variantes de baixa EMI com supress\u00e3o integrada<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Load_Matching_Methodology\"><\/span>5.Metodologia de correspond\u00eancia de carga<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Matriz de sele\u00e7\u00e3o<\/strong>:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Par\u00e2metro<\/th><th>Padr\u00e3o industrial<\/th><th>Grau automotivo<\/th><th>Grau de consumidor<\/th><\/tr><\/thead><tbody><tr><td>Classifica\u00e7\u00e3o de contato<\/td><td>10A@250VAC<\/td><td>15A@14VDC<\/td><td>5A@120VAC<\/td><\/tr><tr><td>Vida mec\u00e2nica<\/td><td>100.000 opera\u00e7\u00f5es<\/td><td>50.000 opera\u00e7\u00f5es<\/td><td>10.000 opera\u00e7\u00f5es<\/td><\/tr><tr><td>Temperatura de opera\u00e7\u00e3o<\/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>Protocolo de valida\u00e7\u00e3o<\/strong>:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Teste de corrente de inrush (10x nominal)<\/li>\n\n\n\n<li>Medi\u00e7\u00e3o de salto de contato (&lt;5ms)<\/li>\n\n\n\n<li>Imagem t\u00e9rmica com ciclo de trabalho de 100%<\/li>\n<\/ol>\n\n\n\n<p><strong>Verifica\u00e7\u00e3o de projeto<\/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>Realizar varreduras de pr\u00e9-conformidade EMC<\/li>\n\n\n\n<li>Validar as previs\u00f5es de MTBF via MIL-HDBK-217F<\/li>\n<\/ul>\n\n\n\n<p>Observa\u00e7\u00e3o: para projetos de alta densidade, considere alternativas de rel\u00e9s SMD (por exemplo, s\u00e9rie TQ2-L2) com pegadas compat\u00edveis. Sempre fa\u00e7a uma revis\u00e3o do projeto para fabrica\u00e7\u00e3o (DFM) com seu montador de PCB.<\/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=\"Rel\u00e9 de 5 pinos\" 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 Diretrizes de seguran\u00e7a para rel\u00e9s de pino<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Electrical_Parameter_Matching_Principles\"><\/span>1.Princ\u00edpios de correspond\u00eancia de par\u00e2metros el\u00e9tricos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Compatibilidade de tens\u00e3o<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Strictly verify coil rated voltage (\u00b110% tolerance)<\/li>\n\n\n\n<li>Especifica\u00e7\u00f5es padr\u00e3o: 12VDC\/24VDC\/220VAC<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Capacidade atual<\/strong>:\n<ul class=\"wp-block-list\">\n<li>A corrente de contato n\u00e3o deve exceder o valor nominal (recomenda-se uma redu\u00e7\u00e3o de 80%)<\/li>\n\n\n\n<li>Padr\u00f5es de refer\u00eancia:\n<ul class=\"wp-block-list\">\n<li>Carga resistiva: 100% do valor nominal<\/li>\n\n\n\n<li>Carga indutiva:50% do valor nominal<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Sele\u00e7\u00e3o da bitola do fio<\/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.Padr\u00f5es de instala\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Montagem mec\u00e2nica<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Use a montagem em trilho DIN (em conformidade com a norma IEC60715)<\/li>\n\n\n\n<li>Instale arruelas antivibra\u00e7\u00e3o em ambientes de alta vibra\u00e7\u00e3o<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Isolamento el\u00e9trico<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Maintain \u22656mm spacing between high\/low voltage terminals<\/li>\n\n\n\n<li>Instalar luvas de isolamento em linhas de alta tens\u00e3o<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Gerenciamento t\u00e9rmico<\/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.Opera\u00e7\u00e3o e manuten\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Itens de inspe\u00e7\u00e3o peri\u00f3dica<\/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>Procedimento de tratamento de falhas<\/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=\"Procedimento de tratamento de falhas\" 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>Controle ambiental<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Faixa de umidade: 20%-85%RH (sem condensa\u00e7\u00e3o)<\/li>\n\n\n\n<li>Prote\u00e7\u00e3o contra poeira: IP40 ou superior<\/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.Procedimentos de opera\u00e7\u00e3o de seguran\u00e7a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Sequ\u00eancia de desligamento<\/strong>:\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Desconectar a energia da carga<\/li>\n\n\n\n<li>Verifique a desenergiza\u00e7\u00e3o com o testador de tens\u00e3o<\/li>\n\n\n\n<li>Instale a etiqueta \"Do Not Operate\" (N\u00e3o operar)<\/li>\n\n\n\n<li>Aguarde 5 minutos (descarga de carga capacitiva)<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>Precau\u00e7\u00f5es de desmontagem<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Use ferramentas seguras contra ESD<\/li>\n\n\n\n<li>Remova os terminais de carga antes dos terminais de controle<\/li>\n\n\n\n<li>Identifique todos os terminais (recomendamos documenta\u00e7\u00e3o fotogr\u00e1fica)<\/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.Medidas de preven\u00e7\u00e3o de falhas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Prote\u00e7\u00e3o de contato<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Cargas CC: Diodo de roda livre paralelo<\/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>Estrat\u00e9gias de extens\u00e3o da vida<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Evite trocas frequentes (&lt;10 opera\u00e7\u00f5es\/minuto)<\/li>\n\n\n\n<li>Para cargas de alta corrente, recomende o contator de pr\u00e9-conex\u00e3o<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>Observa\u00e7\u00e3o: de acordo com os padr\u00f5es UL508, os rel\u00e9s industriais devem ser substitu\u00eddos preventivamente a cada 50.000 opera\u00e7\u00f5es ou 3 anos (o que ocorrer primeiro). Em sistemas de energia cr\u00edticos, a configura\u00e7\u00e3o redundante deve ser implementada para atingir os requisitos de confiabilidade SIL2.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5-Pin_Relay_Application_Scope\"><\/span>Escopo de aplica\u00e7\u00e3o do rel\u00e9 de 5 pinos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Projetos de automa\u00e7\u00e3o residencial<br><\/strong>Em projetos de automa\u00e7\u00e3o residencial, os rel\u00e9s de 5 pinos s\u00e3o comumente usados para comutar cargas de CA, como o controle de comuta\u00e7\u00e3o de luzes, tomadas e outros dispositivos.<\/li>\n\n\n\n<li><strong>Controle industrial<br><\/strong>No controle industrial, os rel\u00e9s de 5 pinos s\u00e3o usados para controlar a partida e a parada de grandes equipamentos ou m\u00e1quinas para garantir a opera\u00e7\u00e3o normal e a seguran\u00e7a do equipamento.<\/li>\n\n\n\n<li><strong>Eletr\u00f4nica automotiva<br><\/strong>Na eletr\u00f4nica automotiva, os rel\u00e9s de 5 pinos s\u00e3o usados para controlar luzes indicadoras, levantadores de vidro etc. para melhorar a seguran\u00e7a e o conforto dos ve\u00edculos.<\/li>\n\n\n\n<li><strong>Circuito de seguran\u00e7a<br><\/strong>Nos circuitos de seguran\u00e7a, os rel\u00e9s de 5 pinos s\u00e3o usados para desconectar a carga da fonte de alimenta\u00e7\u00e3o em caso de mau funcionamento, garantindo a seguran\u00e7a do sistema.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>Este guia abrangente explora os rel\u00e9s de 5 pinos, detalhando suas fun\u00e7\u00f5es de pinos (30, 85, 86, 87, 87a), mecanismos operacionais (comuta\u00e7\u00e3o de solenoides) e pr\u00e1ticas recomendadas de fia\u00e7\u00e3o. Al\u00e9m de aplica\u00e7\u00f5es em sistemas automotivos, industriais e dom\u00e9sticos inteligentes.<\/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\/pt\/5-pin-relay\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"5 Pin Relay - 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