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</div> <div class="clear"></div> </div> </div> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://#/hm.js?81af46131e60f4bfc57b89a0f7f2cdbc"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script> <div class="banner"><a href="#" class="dis swiper-slide "><img oncontextmenu="return false;" 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 "> 公司新聞 </a> <a href="/info/category-5/" class="trans on"> 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"> <div class="wrap"> <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="md">12-30</span> <span class="y">2022</span> <a href="/info/news-i02186i1.html" class="imgs trans" title="分流器電阻材料與傳統繞線精密電阻介紹"></a> </div> <div class="info absolute"> <div class="title trans text-over"> <a class="trans" href="/info/news-i02186i1.html" title="分流器電阻材料與傳統繞線精密電阻介紹">分流器電阻材料與傳統繞線精密電阻介紹</a> </div> <div class="brief trans"> 分流器電阻也是很常用的，甚至一度是高準確設備的主打電阻。采用的電阻絲材料現在有三種：康銅，比較古老，耐熱但溫度系數不太好，與銅的熱電動勢較高。錳銅，有精密錳銅，盡管熱但溫度不太高但溫度系數很小，與銅的熱電動勢小，是廣泛采用的線繞電阻材料。鎳鉻鋁銅合金，也可以簡稱鎳鉻電阻合金，溫度系數最小，材料比較硬，焊接性能不太好。塊電阻，又叫金屬箔電阻，國外廠家以Vishay為代表，是在陶瓷基片粘上合金電阻層然后無感光刻，不僅采用了鎳鉻電阻合金材料，而且陶瓷襯底做進一步溫度補償，使得溫度系數非常小，很多能做到<1ppm/℃。 </div> </div> <div class="img trans absolute"><a href="/info/news-i02186i1.html"><img oncontextmenu="return false;" src="/u_file/2012/photo/2012/2020121809232169.jpeg" width="265" height="152" alt="分流器電阻材料與傳統繞線精密電阻介紹" title="分流器電阻材料與傳統繞線精密電阻介紹" /></a></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="md">12-30</span> <span class="y">2022</span> <a href="/info/news-i02185i1.html" class="imgs trans" title="貼片精密電阻參數特點"></a> </div> <div class="info absolute"> <div class="title trans text-over"> <a class="trans" href="/info/news-i02185i1.html" title="貼片精密電阻參數特點">貼片精密電阻參數特點</a> </div> <div class="brief trans"> 談到貼片精密電阻的特點，我們需要找幾個參照物。本文將主要就精密薄膜電阻與厚膜電阻的對比說明其特點。貼片精密電阻有分為薄膜精密電阻與厚膜精密電阻。薄膜精密電阻主要是體現在低溫度系數，最低可以達1ppm。而厚膜精密電阻溫度系數與普通厚膜貼片電阻的溫度系數一致，但是阻值精度可以做到更高，而且耐電壓性能比較好。目前生產厚膜精密電阻與薄膜精密電阻的主要廠家有：麗智LIZ，天二EVER OHMS，國巨Yageo，光頡Viking，億能ELLON等。 </div> </div> <div class="img trans absolute"><a href="/info/news-i02185i1.html"><img oncontextmenu="return false;" src="/u_file/2205/photo/2205/2022051714053670.png" width="265" height="152" alt="貼片精密電阻參數特點" title="貼片精密電阻參數特點" /></a></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="md">12-28</span> <span class="y">2022</span> <a href="/info/news-i02184i1.html" class="imgs trans" title="精密電阻的選型"></a> </div> <div class="info absolute"> <div class="title trans text-over"> <a class="trans" href="/info/news-i02184i1.html" title="精密電阻的選型">精密電阻的選型</a> </div> <div class="brief trans"> 阻值從1毫歐到1歐姆之間的精密取樣電阻需求，一般只能使用精密箔電阻。因為只有合金材料的電阻才能在低阻值大電流的情況下保持穩定，溫飄可以低至±5ppm/°C，精度可以到±0.1%甚至更高。溫飄的大小是決定這類電阻價格的主要因素。由于其主要應用是電流檢測，所以四腳的結構有利于精密采樣。使用更大尺寸或預留更多的功率空間，并且增加輔助散熱器有利于降低電阻表面的溫度，改良取樣電阻的穩定性。精密的電流取樣電阻可以替代霍爾電流傳感器，并且具有成本優勢。 </div> </div> <div class="img trans absolute"><a href="/info/news-i02184i1.html"><img oncontextmenu="return false;" src="/u_file/2205/photo/2205/2022051714053670.png" width="265" height="152" alt="精密電阻的選型" title="精密電阻的選型" /></a></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="md">12-28</span> <span class="y">2022</span> <a href="/info/news-i02183i1.html" class="imgs trans" title="精密電阻技術及其優缺點"></a> </div> <div class="info absolute"> <div class="title trans text-over"> <a class="trans" href="/info/news-i02183i1.html" title="精密電阻技術及其優缺點">精密電阻技術及其優缺點</a> </div> <div class="brief trans"> 精密電阻技術及其優缺點：精密電阻按材料分，有金屬膜精密電阻、線繞精密電阻和金屬箔精密電阻幾類。金屬膜精密電阻的精度較高，但阻值溫度系數和分布參數指標略低；線繞精密電阻的阻值精度和溫度系數指標很高，但分布參數指標偏低；金屬箔精密電阻的精度、阻值溫度系數和分布參數各項指標都很高： </div> </div> <div class="img trans absolute"><a href="/info/news-i02183i1.html"><img oncontextmenu="return false;" src="/u_file/2212/photo/2212/2022122815063733.png" width="265" height="152" alt="精密電阻技術及其優缺點" title="精密電阻技術及其優缺點" /></a></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="md">12-28</span> <span class="y">2022</span> <a href="/info/news-i02182i1.html" class="imgs trans" title="精密電阻的特性"></a> </div> <div class="info absolute"> <div class="title trans text-over"> <a class="trans" href="/info/news-i02182i1.html" title="精密電阻的特性">精密電阻的特性</a> </div> <div class="brief trans"> 精密電阻的特性精密電阻要求電阻的阻值誤差、電阻的熱穩定性（溫度系數）、電阻器的分布參數（分布電容和分布電感）等項指標均達到一定標準的電阻器。精密電阻分類：精密電阻按材料分，有金屬膜精密電阻、線繞精密電阻和金屬箔精密電阻幾類。金屬膜精密電阻的精度較高，但阻值溫度系數和分布參數指標略低；線繞精密電阻的阻值精度和溫度系數指標很高，但分布參數指標偏低；金屬箔精密電阻的精度、阻值溫度系數和分布參數各項指標都很高：精度可達10-6，溫度系數可達±0.3&TImes;10-6/℃，分布電容可低于0.5pF，分布電感可低于0.1μH。由于上述三類精密電阻器的價格隨性能而提高，所以在應用中應根據實際情況合理選用。例如，在直流或頻率很低的交流電路中，一般只需選用線繞精密電阻或金屬膜精密電阻即可，沒有必要選用價格高昂的金屬箔精密電阻。 </div> </div> <div class="img trans absolute"><a href="/info/news-i02182i1.html"><img oncontextmenu="return false;" src="/u_file/2212/photo/2212/2022122814280922.png" width="265" height="152" alt="精密電阻的特性" title="精密電阻的特性" /></a></div> <div class="clear"></div> </li> <div class="borders"></div> </ul> <div class="blank50"></div> <div id="turn_page"><span><font class='page_noclick'><em class='icon_page_prev'></em> 上一頁</font></span><span class='haha'><font class='page_item_current'>1</font></span><span class='haha2'><a href='/info/category-5/page-2.html' class='page_item'>2</a></span><span class='haha2'><a 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