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MOSFETS </a> </div> </div> <ul class="info_list"> <li class="item relative wow fadeInUp" data-wow-delay="0s" data-wow-duration="1.2s"> <div class="date absolute"> <span class="d">28</span> <span class="ym">2021-09</span> </div> <div class="info absolute"> <div class="title trans text-over"> <a class="trans" href="/faq/news-i01569i1.html">自恢復保險絲能改變狀態嗎？如何保持狀態不變？</a> </div> <div class="brief text-line trans"> 在不排除設備工作保護的情況下，自恢復保險絲在正常狀態和工作狀態之間不會發生變化。工作時，電阻由低變高。在高電阻狀態下，仍有少量故障電流。這個小的故障電流足以使它保持在高電阻狀態。故障排除后，可冷卻至低電阻狀態。 </div> </div> <div class="clear"></div> </li> <li class="item relative wow fadeInUp" data-wow-delay="0.1s" data-wow-duration="1.2s"> <div class="date absolute"> <span class="d">28</span> <span class="ym">2021-09</span> </div> <div class="info absolute"> <div class="title trans text-over"> <a class="trans" href="/faq/news-i01568i1.html">自恢復保險絲工作的最高環境溫度是多少？</a> </div> <div class="brief text-line trans"> 答：工作狀態下的自恢復保險絲取決于產品類型。對于我們的大多數產品，這個范圍可以高達85°C，有些可以高達125°C。有些在非工作狀態下可以承受較短的回流焊溫度。 </div> </div> <div class="clear"></div> </li> <li class="item relative wow fadeInUp" data-wow-delay="0.2s" data-wow-duration="1.2s"> <div class="date absolute"> <span class="d">28</span> <span class="ym">2021-09</span> </div> <div class="info absolute"> <div class="title trans text-over"> <a class="trans" href="/faq/news-i01567i1.html">聚合物自恢復保險絲多久才能不損壞？</a> </div> <div class="brief text-line trans"> 根據安全規定，聚合物自恢復保險絲在常溫常壓下必須在最高電壓下保持1000小時，而不喪失其PTC特性。聚合物自恢復保險絲在運行狀態下的時間越長，其電阻值越難恢復，可能達不到初凝的要求。每個聚合物自恢復保險絲的停留時間隨著故障事件和類型的不同而變化，其使用條件是需要考慮的重要因素之一。 </div> </div> <div class="clear"></div> </li> <li class="item relative wow fadeInUp" data-wow-delay="0.3s" data-wow-duration="1.2s"> <div class="date absolute"> <span class="d">28</span> <span class="ym">2021-09</span> </div> <div class="info absolute"> <div class="title trans text-over"> <a class="trans" href="/faq/news-i01566i1.html">什么是“可恢復保險絲”？</a> </div> <div class="brief text-line trans"> 前言：可恢復保險絲又稱自恢復保險絲，由聚合樹脂和分布在其中的導電顆粒組成。在正常工作環境下，聚合樹脂將導電顆粒緊密地束縛在晶體結構外，形成鏈式導電電路。此時，可恢復保險絲處于低阻狀態。在這種狀態下，可恢復保險絲電流產生的熱能很小，不會改變晶體結構。當線路短路或過載時，流經可恢復保險絲的大電流產生的熱量融化聚合樹脂，體積迅速增加，形成高阻狀態，工作電流迅速減小，從而限制和保護電路。故障排除后，可恢復保險絲重新冷卻晶體，體積收縮，導電顆粒重新形成導電通路，保險絲可恢復低阻。與傳統保險絲相比，可恢復保險絲具有自動恢復、體積小、更堅固的優點。 </div> </div> <div class="clear"></div> </li> <li class="item relative wow fadeInUp" data-wow-delay="0.4s" data-wow-duration="1.2s"> <div class="date absolute"> <span class="d">28</span> <span class="ym">2021-09</span> </div> <div class="info absolute"> <div class="title trans text-over"> <a class="trans" href="/faq/news-i01565i1.html">保險絲電阻為什么不能代替保險絲原因</a> </div> <div class="brief text-line trans"> 答：如果電路中使用電阻進行過載保護有一定的限制，原因是當通過電阻的電流超過電阻的大承載能力時，電阻會被燒毀，使電阻開路，使電路過載時電路被過大電流燒毀。因此，雖然電阻具有類似保險絲的過載保護功能，但在電路過載保護中并不能起到很好的保護作用，因此用電阻代替保險絲是不安全的。 </div> </div> <div class="clear"></div> </li>  </ul> </div> <div class="wrap"> <div class="blank50"></div> <div id="turn_page"><span><a 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