{"type":"product","schema_version":"1.0","item_id":"101599640440","canonical_url":"https://tw.bid.yahoo.com/item/101599640440","title":"光華CUMA散熱精品*Honeywell 霍尼韋爾 PTM7950 相變導熱貼片 相變化導熱片 相變化導熱材料~現貨","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-07-13T12:52:08.949Z","current_price":200,"original_price":null,"stock_status":"in_stock","available_quantity":18,"sold_quantity":9,"seller":{"id":"Y0887632011","name":"光華CUMA散熱精品","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/5e1d9fc9-1513-4427-9c59-8fde8568a752.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/ca5a2a03-a4d5-4691-aa6f-c213d6782b31.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/859f488b-e10c-482d-9efd-32192b29c341.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/33361892-ef38-4a46-adb3-ac1c4d95ac50.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/17a50222-4b54-4e0a-9517-3e213e8adefe.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null},{"url":"https://img.yec.tw/cl/api/res/1.2/xxLPLr3U5YVH9yj4bJugQg--/YXBwaWQ9cHJvZHVjdDtoPTY0MDtxPTg1O3JvdGF0ZT1hdXRvO3c9ODAw/https://img.yec.tw/oj/image/55a11ac0-a48b-4c38-9375-1acf7d2c197f.jpg.cf.jpg","role":"detail","alt":"商品圖片 6","width":null,"height":null},{"url":"https://img.yec.tw/cl/api/res/1.2/iA7Rhaj19d.MUvDK6cgt_A--/YXBwaWQ9cHJvZHVjdDtoPTY0MDtxPTg1O3JvdGF0ZT1hdXRvO3c9ODAw/https://img.yec.tw/oj/image/d9bba294-c2ea-47a9-878d-33825d4a45ff.jpg.cf.jpg","role":"detail","alt":"商品圖片 7","width":null,"height":null},{"url":"https://img.yec.tw/cl/api/res/1.2/xsK2iyUs4KfFG00wAo.I8Q--/YXBwaWQ9cHJvZHVjdDtoPTY0MDtxPTg1O3JvdGF0ZT1hdXRvO3c9ODAw/https://img.yec.tw/oj/image/6fc4324f-7482-44dc-b840-484643e22c75.jpg.cf.jpg","role":"detail","alt":"商品圖片 8","width":null,"height":null},{"url":"https://img.yec.tw/cl/api/res/1.2/BaY3Q.xPYJLUzC2Sg.IWgg--/YXBwaWQ9cHJvZHVjdDtoPTY0MDtxPTg1O3JvdGF0ZT1hdXRvO3c9ODAw/https://img.yec.tw/oj/image/896a9324-fdc5-43fb-b291-7e345faf2b41.jpg.cf.jpg","role":"detail","alt":"商品圖片 9","width":null,"height":null}],"description":"本賣場商品只有相變導熱貼片，並不包含其它產品\n包裝為簡易袋裝\n\n商品寄送時，溫度32度以上會開始有融化的可能，相變材料邊緣可能會溢出，此為正常現象，不影響性能。\n商品寄送時，溫度32度以上會開始有融化的可能，相變材料邊緣可能會溢出，此為正常現象，不影響性能。\n商品寄送時，溫度32度以上會開始有融化的可能，相變材料邊緣可能會溢出，此為正常現象，不影響性能。\n此商品為消耗品，經售出不得退貨。\n\n請注意\n1.本產品為相變材料. 運送過程中,可能因溫度較高，會造成產品邊緣輕微變形,不過不影響正常使用.如果不能接受請勿購買。\n2.商品為台灣代理商貨，由於相變材料原材料尺寸較大，為了零售就只能手工裁切，所以如手工裁切有些誤差或者不平整，請多見諒，不能接受請勿購買。\n\n特性\n1.不會有矽油，不導電，壽命長。\n2.常溫下，相變材料為固態。\n3.隨著溫度上升，相變材料開始軟化，軟化會使裡面空氣排出。\n4.當溫度達到相變溫度，相變材料變成液體，裡面空氣盡可能排出，如此便會減少空氣熱阻，相變材料內縫隙變小了，熱源(晶片)跟散熱器接觸面更大，導熱就會更好。\n5.當機器處於非工作狀態，相變材料將變回固體，並可維持熱源(晶片)跟散熱器緊密接觸。\n從官方的文件可以看到他在多次的高低溫循環之後，會有更好的效果(因為空氣排出)，雖然不是很大幅度的。\n\n使用方式參考：\n1.清除晶片跟散熱片的導熱膏。\n2.裁切所需的相變材料大小。(如要黏貼在晶片上，請裁成晶片大小黏貼；如要黏貼在散熱器上，請觀察晶片跟散熱器接觸的位置，裁切成適合的大小黏貼)\n3.撕開一邊的透明膠膜，按壓相變材料至晶片或者散熱器上(讓材料黏住物體)，指甲刮一圈後，取下另一面膠膜，安裝回原散熱器。\n4.如要拆下散熱器，可先使機器運作一段時間，讓相變材料軟化會比較好拆卸。\n\n註:\n使用環境如果溫度比較高，可以放置冰箱裡冷藏幾分鐘在拿出來使用會比較好撕開膜片(建議使用就直接先放到冰箱冷藏一下在使用)。\n上述文字操作說明如果沒有把握，就麻煩請使用谷歌大神，找一下其他人所分享操作的圖片或影片。\n\nPTM7950規格: \n尺寸: 40x40x0.25mm / 40x80x0.25mm / 40x160x0.25mm / 80x80x0.25mm 四種尺寸可選\n材質: 矽膠\n熱阻抗: 0.04 ̊ C - cm2/W \n導熱率: 8.5 w/mk \n厚度: 0.25 mm\n相變化溫度：45°\n密度 ：2.8 g/cm3\n保存方式:冷藏\n通過150 ̊ C烘烤1000小時，並保持低熱阻<0.04 ̊ C - cm2/W\n溫度循環 ''B'' (- 55 ̊ C 至+125 ̊ C, 1000 次循環) 0.045 ̊ C - cm2/W\n\nProduct Description\nPTM7950 is a super highly thermally conductive Phase Change Material (PCM) in both pad and paste formats. It is designed to minimize thermal resistance at interfaces, maintain excellent performance through reliability testing, and provide scalable application at a competitive cost.\nPTM7950, based on a novel polymer PCM system, exhibits excellent interface wetability during typical operating temperature ranges, resulting in extremely low surface contact resistance. Since PTM7950 comes only in 0.25mm (thicker versions are under development) you need to be sure that this thickness is compatible and suitable for the flatness of your package.\nPTM7950 is a proprietary material that provides superior reliability (pass 150˚C baking 1000 hours, T/C-B 1000 cycles) and maintains low thermal impedance (<0.04˚Ccm2/W @ no shim), making ...","shipping_methods":[{"name":"郵局掛號","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"},{"name":"面交/自取/不寄送","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","信用卡一次付清","萊爾富取貨付款","7-ELEVEN取貨付款"],"category_id":"2092097673","category_name":"其他散熱配件","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":"2092072521","name":"電腦零組件","url":"/tw/%E9%9B%BB%E8%85%A6%E9%9B%B6%E7%B5%84%E4%BB%B6-2092072521-category.html"},{"id":"2092097671","name":"散熱裝置","url":"/tw/%E6%95%A3%E7%86%B1%E8%A3%9D%E7%BD%AE-2092097671-category.html"},{"id":"2092097673","name":"其他散熱配件","url":"/tw/%E5%85%B6%E4%BB%96%E6%95%A3%E7%86%B1%E9%85%8D%E4%BB%B6-2092097673-category.html"}],"view_count":31,"watch_count":3}