鉭(tan)電(dian)(dian)容(rong)的(de)作用及(ji)注意事項有(you)哪些？鉭(tan)電(dian)(dian)容(rong)的(de)性能(neng)(neng)(neng)優異，是電(dian)(dian)容(rong)器中體積(ji)小而(er)又(you)能(neng)(neng)(neng)達(da)到較大電(dian)(dian)容(rong)量(liang)(liang)的(de)產(chan)品，在(zai)電(dian)(dian)源(yuan)濾波、交流旁路等用途上少有(you)競爭(zheng)對(dui)手。鉭(tan)電(dian)(dian)解電(dian)(dian)容(rong)器具有(you)儲藏電(dian)(dian)量(liang)(liang)、進行充放電(dian)(dian)等性能(neng)(neng)(neng)，主要應用于濾波、能(neng)(neng)(neng)量(liang)(liang)貯存與(yu)轉換，記(ji)號旁路，耦合與(yu)退耦以及(ji)作時間常(chang)數元件等。

在應用(yong)中(zhong)要(yao)注意其(qi)性能特點，正(zheng)確使(shi)用(yong)會有助于充(chong)分發揮(hui)其(qi)功能，其(qi)中(zhong)諸如(ru)考慮產品工作環境(jing)及其(qi)發熱溫(wen)度，以及采取降(jiang)額(e)使(shi)用(yong)等措施，如(ru)果使(shi)用(yong)不(bu)(bu)當會影響產品的(de)工作壽命(ming)。另外，貼片鉭電(dian)容有標記的(de)一端(duan)是正(zheng)極，另外一端(duan)是負極，引線鉭長腿的(de)正(zheng)極，鉭電(dian)容不(bu)(bu)能接反，接反后(hou)就(jiu)不(bu)(bu)起作用(yong)了。

我(wo)們在使(shi)用鉭(tan)電容的(de)時候，要(yao)特別(bie)注意以下幾點(dian)：

①鉭電(dian)容(rong)器(qi)(qi)是有極性的電(dian)解電(dian)容(rong)器(qi)(qi)（有“+”符號端為正極），使用(yong)(yong)時(shi)(shi)不可反(fan)極性。反(fan)極性使用(yong)(yong)時(shi)(shi)會增加漏電(dian)或可能引起短(duan)路甚至冒煙爆(bao)炸。

②不能應用的(de)電(dian)路如(ru)下(xia)：高阻抗電(dian)壓保持電(dian)路、耦合電(dian)路、時(shi)間(jian)常數(shu)電(dian)路、漏電(dian)流有影響的(de)電(dian)路、用串聯(lian)方式增加(jia)耐壓的(de)電(dian)路。

③不能(neng)超過額定(ding)電(dian)壓使用，否則(ze)有可能(neng)引起(qi)短路。

④要限制急速(su)地充電(dian)或放電(dian)。建議在(zai)充、放電(dian)電(dian)路中加一個(ge)限流(liu)電(dian)阻，使沖擊電(dian)流(liu)小于20A。

⑤在設計(ji)時，電容(rong)的容(rong)量、耐(nai)壓、阻抗等要留(liu)一(yi)定的裕度，使(shi)更為(wei)安全、可靠。

⑥要(yao)確認(ren)使(shi)用(yong)的(de)(de)溫度范(fan)圍(wei)在(zai)電(dian)(dian)容(rong)器的(de)(de)工作(zuo)溫度范(fan)圍(wei)內(nei)(nei)。電(dian)(dian)源電(dian)(dian)流不(bu)超過(guo)容(rong)許的(de)(de)紋(wen)波電(dian)(dian)流，當超過(guo)容(rong)許的(de)(de)紋(wen)波電(dian)(dian)流時，電(dian)(dian)容(rong)器內(nei)(nei)部會增加熱量，降低使(shi)用(yong)壽(shou)命。

⑦建議電(dian)(dian)(dian)(dian)容器施加的電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)為額(e)(e)(e)定電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)的90%，若額(e)(e)(e)定電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)大于10V時，取額(e)(e)(e)定電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)的80%為好；若直(zhi)(zhi)流電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)加上(shang)交變電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)，則(ze)其峰值電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)不(bu)(bu)能超過額(e)(e)(e)定電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)；若總(zong)的直(zhi)(zhi)流電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)加上(shang)負峰值交變電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)，不(bu)(bu)允(yun)許出現負壓(ya)(ya)(ya)(ya)。