貼片電阻是利便布線的;可以使我們在PCB上的調試更加利便;利便測耗電流。還可以起到熔絲作用，可以代替開關等在板子上，以防用戶亂動設置;可以在高頻信號下。可以充當電感或電容使用;在電路參數不確定時，也可以先用貼片電阻代替。確定后再更改;可以用于在回流路徑斷裂時提供較小的回流路徑，減小干擾;可以的環路電流，使噪聲得到按捺。

貼片(pian)電(dian)阻在(zai)實際的生(sheng)產生(sheng)活中，電(dian)阻仍是(shi)有它自己的生(sheng)產價值的。 貼片(pian)電(dian)阻的使用較多(duo)時(shi)候都是(shi)出于對(dui)策的需要，但是(shi)也不乏一下幾種原因。

將貼(tie)(tie)(tie)片(pian)電(dian)(dian)(dian)阻(zu)與陶瓷氣(qi)體放(fang)電(dian)(dian)(dian)管(guan)串(chuan)聯之后，因為放(fang)電(dian)(dian)(dian)管(guan)的(de)(de)寄生電(dian)(dian)(dian)容很小。可使整個(ge)(ge)串(chuan)聯支路(lu)的(de)(de)總(zong)電(dian)(dian)(dian)容減到幾個(ge)(ge)微(wei)法(fa)。在(zai)這種(zhong)串(chuan)聯組合(he)支路(lu)中(zhong).放(fang)電(dian)(dian)(dian)管(guan)起著一個(ge)(ge)開關作用(yong)(yong).當沒(mei)有(you)暫態過(guo)電(dian)(dian)(dian)壓(ya)作用(yong)(yong)時(shi)。它能夠將貼(tie)(tie)(tie)片(pian)電(dian)(dian)(dian)阻(zu)與系統隔離(li)開，使貼(tie)(tie)(tie)片(pian)電(dian)(dian)(dian)阻(zu)中(zhong)幾乎無泄(xie)(xie)漏電(dian)(dian)(dian)流。這就能降(jiang)低貼(tie)(tie)(tie)片(pian)電(dian)(dian)(dian)阻(zu)的(de)(de)參(can)考電(dian)(dian)(dian)壓(ya).而(er)不必顧(gu)及由(you)此會(hui)引起泄(xie)(xie)漏電(dian)(dian)(dian)流的(de)(de)，從而(er)能較(jiao)為地(di)減緩貼(tie)(tie)(tie)片(pian)電(dian)(dian)(dian)阻(zu)機能的(de)(de)衰退。在(zai)固(gu)定(ding)電(dian)(dian)(dian)阻(zu)中(zhong)還(huan)有(you)一類比較(jiao)特(te)殊的(de)(de)電(dian)(dian)(dian)阻(zu)，就是(shi)貼(tie)(tie)(tie)片(pian)電(dian)(dian)(dian)阻(zu)。

信息來源(yuan)：合金電阻(zu)，貼片(pian)電阻(zu)，旺(wang)詮電阻(zu)，旺(wang)詮合金電阻(zu)