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       直插鋁電解電容是由鋁圓筒做負極，里面裝有液體電解質，[敏感詞]一片彎曲的鋁帶做正極制成。還需要經過直流電壓處理，使正極片上形成一層氧化膜做介質。它的特點是容量大，但是漏電大，穩定性差，有正負極性，適宜用于電源濾波或者低頻電路中。那么鋁電解電容的電流電壓是什么？

       直插鋁電(dian)(dian)(dian)解電(dian)(dian)(dian)容(rong)電(dian)(dian)(dian)流電(dian)(dian)(dian)壓(ya)(ya)也稱(cheng)作漣波(bo)電(dian)(dian)(dian)流和漣波(bo)電(dian)(dian)(dian)壓(ya)(ya)，其(qi)實就是 ripple current，ripple voltage。含(han)義就是電(dian)(dian)(dian)容(rong)器(qi)所能耐受紋(wen)波(bo)電(dian)(dian)(dian)流/電(dian)(dian)(dian)壓(ya)(ya)值。紋(wen)波(bo)電(dian)(dian)(dian)壓(ya)(ya)等(deng)于(yu)紋(wen)波(bo)電(dian)(dian)(dian)流與ESR的乘積(ji)。

       當紋(wen)波(bo)(bo)電(dian)(dian)(dian)流增(zeng)大(da)的(de)時候(hou)，即(ji)使在ESR保(bao)持不變(bian)的(de)情(qing)況(kuang)下，紋(wen)波(bo)(bo)電(dian)(dian)(dian)壓也會(hui)成倍(bei)提高(gao)。換言之(zhi)，當紋(wen)波(bo)(bo)電(dian)(dian)(dian)壓增(zeng)大(da)時，紋(wen)波(bo)(bo)電(dian)(dian)(dian)流也隨之(zhi)增(zeng)大(da)，這也是要求電(dian)(dian)(dian)容具備(bei)更低(di)(di) ESR 值的(de)原因(yin)。疊加入紋(wen)波(bo)(bo)電(dian)(dian)(dian)流后，由于電(dian)(dian)(dian)容內部的(de)等效串(chuan)連電(dian)(dian)(dian)阻（ESR）引起(qi)發熱(re)，從而影(ying)響到(dao)電(dian)(dian)(dian)容器的(de)使用壽命。一般的(de)，紋(wen)波(bo)(bo)電(dian)(dian)(dian)流與頻率成正(zheng)比，因(yin)此低(di)(di)頻時紋(wen)波(bo)(bo)電(dian)(dian)(dian)流也比較低(di)(di)。

       額定(ding)紋(wen)(wen)波(bo)電流(liu)是在(zai)(zai)高工作溫(wen)(wen)度(du)(du)條(tiao)(tiao)件下定(ding)義的(de)(de)數(shu)值。而實際應用(yong)中電容(rong)的(de)(de)紋(wen)(wen)波(bo)承受(shou)度(du)(du)還跟其使(shi)用(yong)環境(jing)溫(wen)(wen)度(du)(du)及(ji)電容(rong)自身(shen)溫(wen)(wen)度(du)(du)等級有關。規格書目(mu)通常會提(ti)供(gong)一(yi)(yi)個(ge)在(zai)(zai)特(te)定(ding)溫(wen)(wen)度(du)(du)條(tiao)(tiao)件下各溫(wen)(wen)度(du)(du)等級電容(rong)所能夠(gou)承受(shou)的(de)(de)大(da)紋(wen)(wen)波(bo)電流(liu)。甚至(zhi)提(ti)供(gong)一(yi)(yi)個(ge)詳細圖表以(yi)幫助(zhu)使(shi)用(yong)者(zhe)迅速(su)查找到(dao)在(zai)(zai)一(yi)(yi)定(ding)環境(jing)溫(wen)(wen)度(du)(du)條(tiao)(tiao)件下要達到(dao)某期望使(shi)用(yong)壽命所允許的(de)(de)電容(rong)紋(wen)(wen)波(bo)量。