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MOSFETS </a> </div> </div> <div class="rig_con"> <div class="top"> <h1 class="title"> 分享“TVS選型”及“應用”篇 </h1> <div class="meg"> <div class="firsts">發布時間：2021-10-08</div> <div class="">已被瀏覽：<span>1575</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-470/"><span style="color:#FF0000;"><strong>瞬態電壓抑制二極管</strong></span></a>(TransientVoltage.Suppressor簡稱TVS，是二極管形式的高性能保護設備。TVS二極管的兩極受反向瞬態高能沖擊時，可以以10次負12秒的速度將兩極間的高阻抗變成低阻抗。吸收高達數千瓦的浪涌功率，使兩極之間的電壓鉗位于預定值，有效保護電子線路中的精密元件，不受各種浪涌脈沖的破壞。而TVS選型及應用想必不少用戶不是很了解，那么今天小編分享TVS選型及應用。</span></span></span><br /> <img alt="分享“TVS選型”及“應用”篇" src="/u_file/2104/photo/2104/2021040717342770.jpeg" /><br /> <span style="font-family:新宋體,arial;"><span style="font-size:16px;"><span style="line-height:200%;">TVS選型及應用<br /> （1）TVS是用來防護浪涌電流的，如果知道要防護的最大電流Ipp最好。選型時首先確定TVS的Ipp；<br /> （2）再其次確定待防護電路的直流電壓或持續工作電壓。如果是交流電，應計算出最大值，即用有效值*1.414；<br /> （3）根據2中已知工作電壓，選擇TVS的Vrwm，要求Vrwm要大于工作電壓，否則工作電壓大于Vrwm會導致TVS反向漏電流增大，接近導通，或者雪崩擊穿，影響正常電路工作。<br /> （4）所選TVS的最大箝位電壓Vc不能大于被防護電路可以承受的最大電壓。否則，當TVS鉗在Vc時會對電路造成損壞；<br /> （5）其中2-4步可以先于1，如果不知Ipp，可以根據信號的功率確定Ipp；<br /> （6）單極性還是雙極性-常常會出現這樣的誤解即雙向TVS用來抑制反向浪涌脈沖，其實并非如此。雙向TVS用于交流電或來自正負雙向脈沖的場合。TVS有時也用于減少電容。如果電路只有正向電平信號，那麼單向TVS就足夠了。TVS操作方式如下：正向浪涌時,TVS處于反向雪崩擊穿狀態；反向浪涌時，TVS類似正向偏置二極管一樣導通并吸收浪涌能量。<br /> 這個時候需要參考TVS的正向導通峰值電流，Ifsm。5.0SMDJ系列的最大正向導通電流為300A；<br /> <br /> 以上內容主要介紹TVS選型及應用，如需要TVS二極管相關產品請留言聯系或<span style="color:#FF0000;">撥打：0755-28100016；</span>海量TVS瞬態抑制二極管現貨庫存，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-i01572i1.html">一篇關于“MOS管選型”指南</a></div> <div class="page-btn next">下一篇 : <a href="/faq/news-i01570i1.html">講解“TVS二極管原理”及選用時“考慮因素”有哪些</a></div> </div> <div class="returns"> <a href="/faq/category-15/page-1.html" class="returns"><img oncontextmenu="return false;" src="/images/return.png" /> 返回列表</a> </div> <div class="relate-title">相關知識解答</div> <div class="relate-list"> <div class="list fl"> <div class="list-title fl text-over"><span>» </span><a href="/faq/news-i01572i1.html">一篇關于“MOS管選型”指南</a></div> <div class="list-time fr text-right">2021-10-08</div> <div class="clear"></div> </div> <div class="list fl"> 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