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class="tags tagsa trans"> 陶瓷管保險絲 </a> <a href="/products-list/i-17/" class="tags tagsa trans"> 精密貼片電阻 </a> <a href="/products-list/i-21/" class="tags tagsa trans"> 華德合金電阻MSTC系列 </a> <a href="/products-list/i-11/" class="tags tagsa trans"> 玻璃管保險絲 </a> <a href="/products-list/i-18/" class="tags tagsa trans"> 功率貼片電阻 </a> <a href="/products-list/i-22/" class="tags tagsa trans"> 華德合金電阻STE系列 </a> <a href="/products-list/i-14/" class="tags tagsa trans"> 車規貼片電阻 </a> <a href="/products-list/i-20/" class="tags tagsa trans"> 華德合金電阻HTE系列 </a> <a href="/products-list/i-30/" class="tags tagsa trans"> 超小型保險絲 </a> <a href="/products-list/i-19/" class="tags tagsa trans"> 溫度保險絲 </a> <a href="/products-list/i-29/" class="tags tagsa trans"> 保險電阻 </a> <a href="/products-list/i-25/" class="tags tagsa trans"> 晶圓電阻 </a> <a href="/products-list/i-26/" class="tags tagsa trans"> 防浪涌電阻 </a> <a href="/products/i-1/" class="tags tagsa trans"> 合金電阻 </a> <a href="/products/i-2/" class="tags tagsa trans"> 保險絲 </a> <a href="/products/i-3/" class="tags tagsa trans"> 貼片電阻 </a> <a href="/products/i-31/" class="tags tagsa trans"> 貼片電容 </a> <a href="/products-list/i-34/" class="tags tagsa trans"> 村田貼片電容 </a> <a href="/products/i-40/" class="tags tagsa trans"> 靜電保護器件 </a> <a href="/products-list/i-41/" class="tags tagsa trans"> 薩瑞微ESD </a> <a href="/products-list/i-42/" class="tags tagsa trans"> 薩瑞微TVS </a> <a href="/products-list/i-43/" class="tags tagsa trans"> 大毅合金電阻LRP系列 </a> <a href="/products-list/i-44/" class="tags tagsa trans"> 大毅合金電阻LRM系列 </a> </div> <div class="detail"> <span style="font-family:新宋體,arial;"><span style="font-size:16px;"><span style="line-height:200%;">原標題：<strong>穩壓電路原理</strong><br /> <strong>什么是穩壓電路原理？</strong>穩壓電路是指在輸出電網的電壓波動或負載發生變化是，但乃然保持輸出電壓的基本不變電源電路，英文稱：Voltage Stabilizing Circuit。<br /> <br /> 但是穩壓電路分類有很多種，比如根據輸出電路的類型可分為DC直流穩壓電路和AC交流穩壓電路；按穩壓電路和負載的連接方式可分為串聯穩壓電路和并聯穩壓電路；按調節管的工作狀態可分為線性穩壓電源和開關穩壓電源；按電路類型可分為簡單穩壓電源和反饋穩壓電源及帶有放大環節的穩壓電路。<br /> <br /> 其學科領域屬于物理學、電子學、電路與電子技術等；基本結構在于電源、檢測控制電路與過壓保護，那么小編根據穩壓電路原理介紹直流穩壓原來、DC直流穩壓電路、開關穩壓電路、串聯穩壓電路及相關的詳情圖方便大家學習如下。<br /> <br /> （1）穩壓電路原理<br /> 以下穩壓電路原理是典型的DC穩壓器框圖。<br /> <img src="/u_file/photo/20210528/1a1904a38f.jpg" /> <br /> 從以上圖看出交流輸入電壓e1由變壓器Tp變為電壓e2，通過整流和濾波。后向調整電路（穩壓電路）輸送一個不穩定的脈動的直流電壓Ui 。因Ui或穩壓電路輸出電流Io的變動而引起輸出電壓Uo變化時,調整電路使Uo保持原值或者只有極小的變動。調整電路中的調整管工作在線性放大區的稱為線性電源，工作在非線性區的則稱為開關電源。線性電源分為簡單穩壓電路、并聯穩壓電路、串聯穩壓電路和集成化穩壓電路。<br /> <br /> （2）DC直流穩壓電路<br /> 在輸出DC直流電壓和負載之間串聯連接三極管，用三極管的壓降代替穩壓二極管電路中的穩壓電阻R。當Ui或RL變化引起輸出電壓Uo變化時，Uo的變化將反映到三極管的發射結電壓UBE上，引起UCE的變化，從而調整Uo，以保持輸出電壓的基本穩定。根據三極管所起的作用，稱為調整管。由于調整管與負載是串聯關系，因此以下圖稱為串聯型穩壓電路。<br /> <img src="/u_file/photo/20210528/b9da9e373d.jpg" /> <br /> <br /> 它主要由基準電壓、比較放大、取樣電路和調整元件組成。比較放大可以是單管放大電路、差動放大電路、集成運算放大器。調整元件可以是單個功率管，復合管或用幾個功率管并聯，取樣電路取出輸出電壓Uo的一部分和基準電壓VREF比較。<br /> <br /> （3）開關穩壓電路<br /> 開關型穩壓電路具有體積小、效率高的特點，而且線性電源的效率為30%~55%，另外開關穩壓器可達60%~85~，可省去工頻變壓器和巨大散熱器以及體積和重量大幅減少。該電路在各種電子設備中能夠廣泛應用。常用的開關控制方法有自激式開關穩定器、脈寬調制式開關穩定器和直流轉換式開關穩定器等。<br /> <img src="/u_file/photo/20210528/e2168c7b16.jpg" /> <br /> <br /> 如上圖是采用DC直流變換器的開關穩壓電路的框圖。而工作頻率電壓直接整流-濾波器得到的DC直流電壓從開關管變為高頻電壓。后者通過高頻換流變壓器變為一定的電壓，通過高頻整流-濾波器提供必要的輸出電壓u0。開關管的工作由脈沖調制器和驅動放大器控制。當輸出電壓u0改變時，來自輸出端的取樣信號通過比較電路產生誤差信號，然后通過脈沖調制器控制開關管的開關工作比，從而保持DC轉換器的輸出穩定。開關管在飽和區間斷續工作，因此功耗比線性電源小，效率高。大功率電力穩壓器由補償變壓器、調壓器、控制電路、檢測電路和操作電路組成。<br /> <br /> （4）串聯穩壓電路<br /> 下圖所表示的是簡單的串聯穩壓電路框圖。<br /> <img src="/u_file/photo/20210528/0b4a2c1a3a.jpg" /> <br /> 從圖中可看出V1是調整管，調節輸出電壓，它與負載電阻是串聯的，所以稱為串聯型穩壓電源。R1給V1提供合適的偏置,使V1工作在放大狀態;利用三極管電流放大作用可以提高輸出電流。同時R1還是限流電阻，保護V2管。V2管穩定三極管V1基極的電位。<br /> <br /> 簡單串聯型穩壓電路的優點是電路簡單，調試方便。由于三極管具有電流放大作用，使它的輸出電流較大。但是它的輸出電壓仍然不能調節，Vo=Vz－VBE1而基本上是不變。穩壓靈敏度不夠，穩壓效果差，所以要進行改進。<br /> <br /> 看完這篇文章想必大家都了解到穩壓電路原理、DC直流穩壓電路、開關穩壓電路、串聯穩壓電路了吧，好了今天就介紹到這。<br /> <br /> 深圳市順?？萍加邢薰臼且患覍I的保險絲、貼片保險絲、合金電阻、貼片電阻、貼片電感、一體成型電感、TVS、ESD、 PPTC、GDT、TSS、MOS、LDO等保護器件、靜電管代理品牌有華德、薩瑞微、碩凱、天二、國巨、厚聲、旺詮、TDK、大毅、光頡、威世、ELLON、EVER、OHMS、MURATA、TAIYO、SUNLROP、TDK、LRC、ITE、SAMSUNG，專業的銷售團隊以及海量現貨庫存，為客戶提供更優質的服務，歡迎咨詢合作。<br /> 標簽：穩壓電路原理、穩壓電路原理圖、串聯穩壓電路原理、串聯型穩壓電路原理、穩壓管穩壓電路原理、穩壓電路原理分析、串聯穩壓電路原理</span></span></span> </div> </div> <div class="bottoms clear-both"> <div class="left fl clear-both"> <div class="font fl"> 熱門文章： </div> <div class="hot-list fl"> <a href="/info-detail/i-1267.html" class="a trans text-over">?Fuse principle\Fuse的工作原理</a> <a href="/info-detail/i-1266.html" class="a trans text-over">精密合金電阻器在快速充電中有哪些應用？</a> <a href="/info-detail/i-1265.html" class="a trans text-over">你知道貼片電阻器選擇的所有這些參數嗎？</a> </div> </div> <div class="right fr"> <div class="share-list clear-both"> <div class="font fl"> 分享： </div> <div class="bshare-custom fr"> <a title="分享到微信" class="bshare-weixin"></a> <a title="分享到QQ好友" class="bshare-qqim"></a> <a title="分享到新浪微博" class="bshare-sinaminiblog"></a> <a title="分享到QQ空間" class="bshare-qzone"></a> </div> </div> </div> </div> <div class="page-wrap clear-both"> <a href="/info-detail/i-816.html" class="btn prev trans fl">上一篇</a> <a href="/info/" class="btnlist trans">返回列表</a> <a 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trans wow fadeInUp" data-wow-delay="0.3s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/f8f65cba04f912e7423d7a5ca88029b9.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">精密貼片電阻</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：0201~2512 </div> <div class="attr fl "> 阻值：1R~10M </div> <div class="attr fl "> 功率：0.0125W~2W </div> <div class="attr fl w100"> 精度：0.01%,0.05%,0.1%,0.5%,1% </div> <div class="attr fl "> 溫漂：1ppm~75ppm </div> <div class="attr fl w100"> 材質：厚膜電阻、精密電阻、薄膜電阻 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-18/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="0.4s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/6bceb7e7f35737f2b30806c8171c05ed.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">功率貼片電阻</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：0402~2512 </div> <div class="attr fl "> 阻值：所有阻值 </div> <div class="attr fl "> 功率：0.125W~2W </div> <div class="attr fl w100"> 精度：0.1%,0.5%,1%,5% </div> <div class="attr fl w100"> 溫漂：100ppm及其他 </div> <div class="attr fl w100"> 材質：厚膜電阻,薄膜電阻 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-22/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="0.5s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/9c56177cacd8b04a4c17858db6198e6a.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">華德合金電阻STE系列</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：0603~4527 </div> <div class="attr fl "> 阻值：2mR~750mR </div> <div class="attr fl "> 功率：0.5W~5W </div> <div class="attr fl "> 精度：0.5%，1% </div> <div class="attr fl "> 溫漂：50ppm </div> <div class="attr fl "> 材質：陶瓷合金 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-14/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="0.6s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/bb5037b4518315a5466df63356c37705.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">車規貼片電阻</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：0201~2512 </div> <div class="attr fl "> 阻值：系列阻值 </div> <div class="attr fl "> 功率：0.125W~2W </div> <div class="attr fl w100"> 精度：0.1%,0.5%,1%,5% </div> <div class="attr fl w100"> 溫漂：100ppm及其他 </div> <div class="attr fl w100"> 材質：厚膜車規電阻與薄膜精密車規電阻 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-30/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="0.7s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/edc51266bf475aa6c61e512affc728ce.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">超小型保險絲</div> <div class="brief clear-both"> <div class="attr fl w100"> 尺寸范圍：8*5*4~8*8*4~*8.5*8 </div> <div class="attr fl "> 電流：100mA~10A </div> <div class="attr fl "> 電壓：125V~250V </div> <div class="attr fl "> 特性：一次性 </div> <div class="attr fl "> 安規：認證齊全 </div> <div class="attr fl "> 材質：塑料 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-19/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="0.8s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/e218575befe15df8fca8109a1d020d43.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">溫度保險絲</div> <div class="brief clear-both"> <div class="attr fl w100"> 尺寸范圍：4.3*11~6*6*2 </div> <div class="attr fl "> 電流：2A~15A </div> <div class="attr fl "> 電壓：250V </div> <div class="attr fl "> 特性：一次性 </div> <div class="attr fl "> 安規：認證齊全 </div> <div class="attr fl "> 材質： </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-4/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="0.9s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/2161c7528e53d7e860c56beb3b6b459c.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">天二合金電阻MA系列</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：1206~4527 </div> <div class="attr fl "> 阻值：0.2mR~1R </div> <div class="attr fl "> 功率：0.5W~4W </div> <div class="attr fl "> 精度：0.5%，1% </div> <div class="attr fl "> 溫漂：50ppm </div> <div class="attr fl "> 材質：金屬合金 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-28/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="1s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/b5ffcfb4edf5abeb605e4cc34181ce1c.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">排阻，貼片排阻</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：0402~1206 </div> <div class="attr fl "> 阻值：所有阻值 </div> <div class="attr fl "> 功率：0.125W~0.25W </div> <div class="attr fl "> 精度：1%,5% </div> <div class="attr fl w100"> 溫漂：100ppm及其他 </div> <div class="attr fl "> 材質：厚膜電阻 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-5/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="1.1s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/54aafab6962c3e5603811eac5b0cdcc7.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">天二合金電阻MR系列</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：0805~4527 </div> <div class="attr fl "> 阻值：0.2mR~750mR </div> <div class="attr fl "> 功率：0.5W~4W </div> <div class="attr fl "> 精度：0.5%，1% </div> <div class="attr fl "> 溫漂：50ppm </div> <div class="attr fl "> 材質：金屬合金 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-29/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="1.2s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/8826b157f07885c853dc0f74ef3c5387.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">保險電阻</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：0204~0309 </div> <div class="attr fl "> 阻值：1R~2K </div> <div class="attr fl "> 功率：1/16W~3W </div> <div class="attr fl "> 精度：0.5%，1%，5% </div> <div class="attr fl w100"> 溫漂：200ppm及其他 </div> <div class="attr fl "> 材質： </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-25/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="1.3s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/faa674d5748c66fb9050cdb7449a8f69.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">晶圓電阻</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：0204~0207 </div> <div class="attr fl "> 阻值：系列阻值 </div> <div class="attr fl "> 功率：0.25W~2W </div> <div class="attr fl w100"> 精度：0.1%,0.5%,1%,5% </div> <div class="attr fl "> 溫漂：75ppm及其他 </div> <div class="attr fl w100"> 材質：炭膜晶圓電阻與金屬膜晶圓電阻 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-26/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="1.4s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/41e785cf04a7e4a2c7a3b9e4c1b5ec57.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">防浪涌電阻</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸：0201~2512 </div> <div class="attr fl w100"> 精度：±0.01%、±0.05%、±0.1%、±0.25%、±0.5%、±1% </div> <div class="attr fl w100"> 功率：1/32W、1/16W、1/10W、1/8W、1/5W、1/4W、1/2W等 </div> <div class="attr fl w100"> 阻值范圍：1~3M可選 </div> <div class="attr fl w100"> TCR(溫度系數)：±5、±10、±15、±25、±50PPM/℃ </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products/i-31/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="1.5s" data-wow-duration="2s"> <div class="img m-pic"> <img src=""> </div> <div class="bot"> <div class="title trans text-over">貼片電容</div> <div class="brief clear-both"> <div class="attr fl "> </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-34/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="1.6s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/b595ff460d37fdad5f99a7a3050d4791.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">村田貼片電容</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：01005~2220 </div> <div class="attr fl "> 容值：0.1PF~330UF </div> <div class="attr fl "> 耐壓值：4V~2KV </div> <div class="attr fl w100"> 精度：1%,2%,5%,10%,20% </div> <div class="attr fl w100"> 材質：COG，X7R，X5R等 </div> <div class="attr fl "> 材質：陶瓷 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-35/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="1.7s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/66d3dec91f378175a96ced53f2ee247b.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">三星貼片電容</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：01005~2220 </div> <div class="attr fl "> 容值：0.1PF~330UF </div> <div class="attr fl "> 耐壓值：4V~2KV </div> <div class="attr fl w100"> 精度：1%,2%,5%,10%,20% </div> <div class="attr fl w100"> 材質：COG，X7R，X5R等 </div> <div class="attr fl "> 材質：陶瓷 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-36/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="1.8s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/9a9b988d87b2abcb6ecf4619780077da.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">國巨貼片電容</div> <div class="brief clear-both"> <div class="attr fl "> 尺寸范圍：01005~2220 </div> <div class="attr fl "> 容值：0.1PF~330UF </div> <div class="attr fl "> 耐壓值：4V~2KV </div> <div class="attr fl w100"> 精度：1%,2%,5%,10%,20% </div> <div class="attr fl w100"> 材質：COG，X7R，X5R等 </div> <div class="attr fl "> 材質：陶瓷 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products/i-40/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="1.9s" data-wow-duration="2s"> <div class="img m-pic"> <img src=""> </div> <div class="bot"> <div class="title trans text-over">靜電保護器件</div> <div class="brief clear-both"> <div class="attr fl "> </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-41/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="2s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/f4148f8ba3edf1cb93beb640e95528f6.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">薩瑞微ESD</div> <div class="brief clear-both"> <div class="attr fl "> 特性：常規/低容 </div> <div class="attr fl "> 尺寸：貼片/插腳 </div> <div class="attr fl "> 電流：2A-400A </div> <div class="attr fl "> 電壓:3.3V-36V </div> <div class="attr fl w100"> 標準：靜電標準IEC61000-4-2/浪涌標準IEC61000-4-5 </div> </div> <div class="detail trans">了解詳情 <img src="/images/img31.png"></div> </div> </a> <a href="/products-list/i-42/" class="swiper-slide item fl trans wow fadeInUp" data-wow-delay="2.1s" data-wow-duration="2s"> <div class="img m-pic"> <img src="/tmp/thumbnail/4a9568add9e56e69fda87325c02d5800.338x178.0.jpg"> </div> <div class="bot"> <div class="title trans text-over">薩瑞微TVS</div> <div class="brief clear-both"> <div class="attr fl w100"> 特性：車規AECQ-101/AECQ-200 </div> <div 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