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MOSFETS </a> </div> </div> <div class="rig_con"> <div class="top"> <h1 class="title"> 什么是“可恢復保險絲”？ </h1> <div class="meg"> <div class="firsts">發布時間：2021-09-28</div> <div class="">已被瀏覽：<span>3082</span>次</div> <div class="shape"> <span>分享到：</span> <div class="bdsharebuttonbox" style="display:inline-block;vertical-align:middle;"><a href="#" class="bds_more" data-cmd="more"></a><a href="#" class="bds_qzone" data-cmd="qzone" title="分享到QQ空間"></a><a href="#" class="bds_tsina" data-cmd="tsina" title="分享到新浪微博"></a><a href="#" class="bds_sqq" data-cmd="sqq" title="分享到QQ好友"></a><a href="#" class="bds_weixin" data-cmd="weixin" title="分享到微信"></a><a href="#" class="bds_renren" data-cmd="renren" title="分享到人人網"></a></div> <script> window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdMiniList":false,"bdPic":"","bdStyle":"0","bdSize":"16"},"share":{}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)]; </script> </div> </div> </div> <div class="con"> <span style="font-family:新宋體,arial;"><span style="font-size:16px;"><span style="line-height:200%;">前言：<a href="http://www.forsakring-online.com/products/category-88/"><span style="color:#FF0000;"><strong>可恢復保險絲</strong></span></a>又稱<a href="http://www.forsakring-online.com/products/category-88/"><span style="color:#FF0000;"><strong>自恢復保險絲</strong></span></a>，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。</span></span></span><br /> <img alt="什么是“可恢復保險絲”？" src="/u_file/2103/photo/2103/2021032910500651.jpeg" /><br /> <span style="font-family:新宋體,arial;"><span style="font-size:16px;"><span style="line-height:200%;">可恢復保險絲工作原理<br /> 可恢復保險絲元件串聯在電路中，正常情況下處于低阻狀態，保證電路正常工作。當電路短路或進入異常大電流時，元件的自熱增加了阻抗，將電流限制到足夠小，起到過電流保護的作用。同時，當外界環境溫度急劇上升時，當環境達到產品開關溫度時，可以起到過溫保護的作用。<br /> <br /> 可恢復保險絲優勢<br /> （1）當排除過流過熱的故障時，保險絲元件可以自動恢復到低阻狀態。這不僅避免了維護和更換，也避免了可能造成電路損壞的連續循環的開閉狀態?？苫謴捅ｋU絲由聚合物和導電材料制成。聚合物可恢復保險絲由聚合物樹脂基體和分布在其中的導電顆粒組成。正常情況下，導電顆粒在樹脂基體中形成鏈狀導電通路，聚合物可恢復保險絲阻抗低。當電路中發生過流時，流經聚合物可以恢復保險絲大電流產生的熱量，使聚合物樹脂基體體積膨脹，切斷導電顆粒形成的鏈狀導電通路，導致聚合物可以恢復保險絲阻抗的快速增加，從而保護電路過流。<br /> （2）JKPPTC元件過過電流條件消失后的幾秒鐘內，JKPPTC元件的溫度迅速下降，JKPPTC元件迅速恢復<br /> （3）環境溫度越高，通過的電流越大。動作時間越短，當環境溫度超過25℃時，可恢復保險絲的電流速度就會降低。當環境溫度為25℃時，線路上的電流100%通過可恢復保險絲，但如果產生超過兩倍的額定電流，可以恢復保險絲。<br /> <br /> 可恢復保險絲應用<br /> 通迅設備領域：程控交換機、用戶終端設備、總配線保安單元等；<br /> 汽車電子領域：汽車線束、汽車防盜器、汽車微電機、汽車電子產品等；<br /> 電子行業領域：電源鎮流器、微電機、火災報警、儀器儀表等；<br /> 電器設備領域：衛星接收機、安防設備、揚聲器、工業自動控制等；<br /> <br /> 可恢復保險絲無極性，電容小，適用于AC和DC電源，與被保護電器串聯在線路上。鋰離子電池經常因短路或過充而發生燃燒、爆炸等事故，可恢復保險絲可以起到有效的保護作用。<br /> <br /> 以上內容主要介紹可恢復保險絲相關信息，如需要可恢復保險絲相關產品請留言聯系或<span style="color:#FF0000;">撥打：0755-28100016；</span>海量可恢復保險絲現貨庫存，規格齊全。歡迎來咨詢價格或拿樣測試。<br /> <br /> 深圳順?？萍加邢薰臼且患乙源頌橹鞯碾娮釉骷?、半導體器件、保護器件的整合供應商，主營TVS瞬態抑制二極管、ESD靜電保護器、GDT陶瓷氣體放電管、TSS半導體放電管、NTC熱敏電阻、壓敏電阻、保險絲、合金電阻、貼片電阻、精密電阻、晶圓電阻、貼片保險絲、自恢復保險絲、貼片電容、鉭電容、電解電容、鋁電解電容、超級電容、連接器等相關產品線，品牌可選華德、碩凱、薩瑞微、億能、特思嘉、基美(KEMET)、天二、旺詮、大毅、村田、太誘、TDK、AVX、威世、風華、華新科、三瑩、國巨、立隆、厚聲、光頡、順絡、麥捷、禾伸堂等知名品牌。</span></span></span> </div> <div id="page" class="wow fadeInUp wrap"> <div class="page-btn prev">上一篇 : <a 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="page-btn next">下一篇 : <a 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