{"type":"product","schema_version":"1.0","item_id":"100199470504","canonical_url":"https://tw.bid.yahoo.com/item/100199470504","title":"光展 穩壓IC-7805 7809 7810 7812 適合各種led穩壓電路","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-04-23T21:35:14.541Z","current_price":6,"original_price":"10.00","stock_status":"in_stock","available_quantity":955,"sold_quantity":219,"seller":{"id":"Y7158261619","name":"【光展LED照明 】","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/72d3e730-0031-4532-98cf-1b62e17ab723.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/b5fdb9c5-db7e-4cc3-ace3-d2b1a5b56550.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/114796a7-e5a2-4513-b0e0-303e99ada71b.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/89a2a97d-2554-448c-884f-90059dedf9fb.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/259bcc02-75fd-457b-b755-eac28015b5d9.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null}],"description":"穩壓IC 7805 7809 7810 7812 \n\n適合各種led穩壓電路 大盤價12元\n\n 最大入電壓35v\n\n輸出最大負載電流1.2A\n\n請加裝散熱鋁座使用\n\n7805穩壓ic可將直流輸入電壓.大於5v的電壓..穩定在5v輸出\n\n 7809穩壓ic可將直流輸入電壓.大於9v的電壓..穩定在9v輸出\n\n 7810穩壓ic可將直流輸入電壓 大於10v的電壓..穩定在10v輸出\n\n 7812穩壓ic可將直流輸入電壓大於12v的電壓..穩定在12v輸出\n\n 　\n\n 應用範例\n\n 7810穩壓ic可將直流輸入電壓\n\n 大於10v的電壓..穩定在10v輸出\n\n 可以應用在汽車室內燈改裝\n \n 汽車電壓是分發動車和不發動車兩個情況下的.\n\n 未發動車時,這時的電力.\n\n 主要來於汽車電瓶的供電,\n\n 這時的電壓大約在11-12V左右.\n\n 而當車起動後的電壓就會到13.5-14.5V左右.\n\n 一般都是用電阻來降壓啦.都是用車的最大電壓14.5V來計算.\n\n 一般串連三個白光LED的話要用120-180歐姆左右的電阻才可以.\n\n 但當車未起動時.因電壓大約在11-12V左右.\n\n 電壓也就低了很多.LED會比較暗..\n\n 車子發動後.電壓就會到13.5-14.5V左右..\n\n 這時.LED的亮度.才是最大亮度.\n\n 如果你用7810穩壓IC...\n\n 大於10v的電壓..穩定在10v輸出.\n\n 所以串連三個白光LED的話.只要用1/4瓦16歐姆電阻.就可以了.\n\n 而且車子發動前和發動後..LED的亮度都是一樣的..\n\n 而且還有穩定車子啟動時的脈衝...\n 　\n \n 7812穩壓ic可將直流輸入電壓\n\n 大於12v的電壓...穩定在12v輸出\n\n 可以用在煞車燈和小燈","shipping_methods":[{"name":"7-ELEVEN取貨付款","fee":0,"currency":"TWD"},{"name":"郵局掛號","fee":0,"currency":"TWD"},{"name":"面交/自取/不寄送","fee":0,"currency":"TWD"},{"name":"萊爾富取貨付款","fee":0,"currency":"TWD"},{"name":"宅配/貨運","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","信用卡一次付清","萊爾富取貨付款","7-ELEVEN取貨付款"],"category_id":"2092080825","category_name":"車燈燈泡","breadcrumb":[{"id":"2092105204","name":"汽機車精品百貨","url":"/tw/%E6%B1%BD%E6%A9%9F%E8%BB%8A%E7%B2%BE%E5%93%81%E7%99%BE%E8%B2%A8-2092105204-category.html"},{"id":"2092105211","name":"汽車精品","url":"/tw/%E6%B1%BD%E8%BB%8A%E7%B2%BE%E5%93%81-2092105211-category.html"},{"id":"2092073843","name":"精品百貨","url":"/tw/%E7%B2%BE%E5%93%81%E7%99%BE%E8%B2%A8-2092073843-category.html"},{"id":"2092080825","name":"車燈燈泡","url":"/tw/%E8%BB%8A%E7%87%88%E7%87%88%E6%B3%A1-2092080825-category.html"}],"view_count":0,"watch_count":17}