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alt="貼片電阻，合金電阻，保險絲產品新聞中心" src="/u_file/2206/photo/2206/2022062314432921.jpeg" width="100%"></a></div>  <div id="nav"> <div class="wrap"> <div id="side"> <a href="/info/category-4/" class="trans on"> 公司新聞 </a> <a href="/info/category-5/" class="trans "> 行業新聞 </a> <a href="/info/category-6/" class="trans "> 產品新聞 </a> <a href="/faq/" class="trans "> 知識解答 </a> </div> </div> </div>  <div id="info-detail"> <div class="wrap"> <div class="top"> <h1 class="title"> 壓敏電阻的作用 </h1> <div class="meg"> <div class="firsts">發布時間：2019-10-30</div> <div class="">已被瀏覽：<span>3127</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="line-height:200%;"><span style="font-size:16px;"><span style="font-family:微軟雅黑,arial;"><strong><span style="font-weight:bold;">壓敏電阻的作用</span></strong><br /> 壓敏電阻它的最大特性是當增加到它的電壓低于其閥值時，而流過它的電流非常小，就好比一個關閉的閥門，當電壓超過閥值時，流過它的電流增加相當于打開了閥門。利用該功能，可以抑制異常過電壓，保護電路不受過電壓損壞。<br /> 壓敏電阻是一種具有非線性伏安特性的電阻器件，可以代替瞬態控制二極管、齊納二極管和電容器等的組合。壓敏變阻器可以保護集成電路和其他器件的電路免受靜電放電、浪涌和其他瞬變電流（如雷擊）造成的損壞。<br /> 使用壓敏電阻并把它接于要保護的IC或者設備電路上，當電壓高于某一值時，壓敏電阻的電阻值迅速減小，并開啟大電流保護IC或電氣設備。當電壓低于壓敏電阻的工作電壓值時，壓敏電阻的電阻值很高，接近開路，不會影響器件或電氣設備的正常工作。<br /> <strong><span style="font-weight:bold;">壓敏電阻在電路中的作用</span></strong></span></span></span><br /> <span style="line-height:200%;"><span style="font-size:16px;"><span style="font-family:微軟雅黑,arial;"><strong> 1、過電壓保護</strong></span></span></span><br /> <span style="line-height:200%;"><span style="font-size:16px;"><span style="font-family:微軟雅黑,arial;">電路中變阻器的電壓保護功能可配合熔斷器進行雷擊或其它過保護消費者的安全，保護消費者的利益，國家制定了一系列法律來規范市場上的這些情況，電壓保護。它通常用于防雷；當發生過電壓時，壓敏電阻器發生故障，顯示短路狀態，從而將兩端的電壓固定在較低的水平上。同時，短路引起的過流會燒毀前面的安全管，或迫使空氣開關跳閘，從而導致電源被切斷。常規來說，損壞后對其他產品其他部件影響不大。只有連接到它的電路元件才能被檢查。如果它壞了，保險絲就會燒斷。壓敏電阻器在電路中能夠起到電路保護。<br /> <br /> 　<strong><span style="font-weight:bold;">2、耐雷擊要求</span></strong><br /> 變阻器具有抗雷擊的能力；防雷，當被大電流擊中時，變阻器會突破短路，立即使保險絲短路，達到電路保護的目的。<br /> <br /> <strong><span style="font-weight:bold;">3、安規測試需要</span></strong><br /> 壓敏電阻器安全量規的測試需要，隨著現代科學技術的發展，人們生活水平的提高，生活質量的需要，大量的電子產品進入我們的生活，包括我們常用的家用電器，電子產品等。因此對電子產品的安全性能提出了更高的要求。用作電子元件的變阻器也被列為安全認證要求。為了以整頓不良產品。如果沒有經過安全監控的電子產品不能在市場上銷售，這是基于客戶的安全，必須進行。如果他們被發現不遵守規定，他們應該受到法律的懲罰，甚至被追究刑事責任。</span></span></span><br /> <br /> <span style="line-height:200%;"><span style="font-size:16px;"><span style="font-family:微軟雅黑,arial;">深圳市順?？萍加邢薰臼且患覍I代理銷售電子元器件的元器件服務商，主要產品品類有：電容器，電阻器，電感器，保險絲，二三極管，傳感器等產品。</span></span></span> </div> <div id="page" class="wow fadeInUp wrap"> <div class="prev fl">上一篇 : <a href="/info/news-i00255i1.html" title="村田220UF電容">村田220UF電容</a></div> <div class="next fr">下一篇 : <a href="/info/news-i00244i1.html" title="華德保險絲簡介">華德保險絲簡介</a></div> <div class="clear"></div> </div> <div class="returns"> <a href="/info/category-4/page-5.html" class="returns" title="返回列表"><img oncontextmenu="return false;" src="/images/return.png" alt="返回列表" title="返回列表" /> 返回列表</a> </div> <div class="relate-title">相關新聞</div> <div class="relate-list"> <div class="list fl"> <div 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