{"type":"product","schema_version":"1.0","item_id":"100320662271","canonical_url":"https://tw.bid.yahoo.com/item/100320662271","title":"《德源科技》r)四路/4路繼電器模組 雙電源 5V/12V 帶光耦保護 電流負載 單片機IO","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-05-06T16:37:57.824Z","current_price":203,"original_price":null,"stock_status":"in_stock","available_quantity":4,"sold_quantity":0,"seller":{"id":"Y9895025221","name":"Deryuan 德源科技","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/04db40d0-425a-4586-87ee-71c83c333999.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/10065717-efc1-440e-b88c-c72f30ba8285.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/fab3d0d3-b4f6-42ba-aeee-72a8c213cd10.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null}],"description":"5779\n\n4路繼電器擴展板，可以控制各種家用電器，及大電流負載本模組為5V控制電壓。\n\n該模組為低電平觸發，充分考慮到單片機的灌電流大於拉電流，所以不需要增加上拉電阻便可直接驅動。\n\n　　同時在使用單片機控制時，有的模塊用高電平觸發，在單片機上電初始化瞬間IO口會輸出瞬間高電平，這樣對於高電平觸發的模塊就會瞬間吸和一下，再斷開。\n\n也就是上電誤動作現象，這是非常危險的。\n\n本模組是低電平觸發不會出現這樣的情況。\n\n用途：\n\n1、繼電器使用5V直流電源，控制信號可以直接接單片機IO口，也可以使用5V直接控制繼電器。\n\n2、低電平觸發，避免上電誤動作現象。\n\n3、增加濾波電容，有的模塊在信號關斷時指示燈會微量，同時會有噪音，這就是沒有增加濾波電容的原因。\n\n4、每組繼電器有常開、常閉觸點各一組。\n\n5、輸入控制信號線：\n\n   VCC接5V直流正極\n\n   GND接5V直流負極\n\n   IN1   IN2  IN3  IN4接控制信號，低電平繼電器吸合，高電平繼電器斷開，不接電繼電器也斷開。\n\n6、有4路繼電器工作狀態指示燈，貼片。\n\n7、有貼片二極管IN4148，反向保護。\n\n8、線路板動靜觸頭3.5mm線路,保證10A電流可靠。\n\n9、高低壓線路通過割穿電路板隔離，高低壓隔離更可靠，保證線路安全。\n\n10、有4個3mm直徑螺絲孔，便於安裝。螺絲孔中心間距68mm X 49mm\n\n11、尺寸小巧，安裝方便。線路板尺寸：75mm X 55mm  高20mm\n\n繼電器模組正面\n\n繼電器模組反面\n\n \n\n1、支持所有單片機控制。\n\n2、工業領域；\n\n3、PLC控制；\n\n4、家居智能控制；\n\n送資料和驅動程序並提供技術支持","shipping_methods":[{"name":"郵局掛號","fee":0,"currency":"TWD"},{"name":"7-ELEVEN取貨付款","fee":0,"currency":"TWD"},{"name":"7-ELEVEN取貨不付款","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","7-ELEVEN取貨付款"],"category_id":"2092072544","category_name":"其他電腦周邊","breadcrumb":[{"id":"23336","name":"電腦、平板與周邊","url":"/tw/%E9%9B%BB%E8%85%A6%E3%80%81%E5%B9%B3%E6%9D%BF%E8%88%87%E5%91%A8%E9%82%8A-23336-category.html"},{"id":"2092072522","name":"電腦/筆電周邊","url":"/tw/%E9%9B%BB%E8%85%A6-%E7%AD%86%E9%9B%BB%E5%91%A8%E9%82%8A-2092072522-category.html"},{"id":"2092072544","name":"其他電腦周邊","url":"/tw/%E5%85%B6%E4%BB%96%E9%9B%BB%E8%85%A6%E5%91%A8%E9%82%8A-2092072544-category.html"}],"view_count":0,"watch_count":1}