電容器種類之多，形同外表類型不同，類型相同可是電壓和其它方面還是不相同的，就比如說安規電容。安規電容是指用于這樣的場合，即電容器失效后，不會導致電擊，不危及人身。因為外部電源斷開后安規電容會迅速放電，人用手觸摸不會有觸電感。          
安(an)規(gui)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)又分安(an)規(gui)X電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)和(he)(he)(he)安(an)規(gui)Y電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)。安(an)規(gui)X電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)和(he)(he)(he)安(an)規(gui)Y電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)雖(sui)然都歸(gui)于安(an)規(gui)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)，可是(shi)它們外(wai)觀不相同，很好差異，在選購時就不怕選錯了。不過(guo)安(an)規(gui)Y電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)中還(huan)(huan)分為Y1電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、Y2電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、Y3電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)和(he)(he)(he)Y4電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)，平常比(bi)較(jiao)熟悉的(de)用(yong)的(de)比(bi)較(jiao)多(duo)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)還(huan)(huan)是(shi)Y1電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)和(he)(he)(he)安(an)規(gui)Y2電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)，而Y3、Y4電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)用(yong)的(de)比(bi)較(jiao)少(shao)。
安規(gui)Y1電容(rong)和安規(gui)Y2電容(rong)外觀如出一轍，標稱電容(rong)量也是(shi)相(xiang)同的(de)(de)，弄不清楚它們之間的(de)(de)差異選購真的(de)(de)很簡單踩雷買(mai)錯安規(gui)電容(rong)了。今日小(xiao)編帶你們來看(kan)看(kan)安規(gui)Y1電容(rong)和Y2電容(rong)的(de)(de)差異吧。

1.腳距不同
安規Y1電容(rong)腳(jiao)(jiao)距(ju)大，通常安規Y1電容(rong)的腳(jiao)(jiao)距(ju)是9.5MM或者(zhe)10MM；安規Y2電容(rong)的腳(jiao)(jiao)距(ju)是7.5MM。
2.耐(nai)壓不同
安規(gui)(gui)Y1電容耐(nai)壓高，安規(gui)(gui)Y1額定電壓是500VAC，耐(nai)壓能夠達到(dao)4000VAC；安規(gui)(gui)Y2額定電壓為500VAC，耐(nai)壓達到(dao)1800-2600VAC。
3.絕(jue)緣不同
兩(liang)者絕緣類型不(bu)同，安規Y1電(dian)容(rong)歸于(yu)(yu)雙(shuang)重(zhong)絕緣（JD）；安規Y2電(dian)容(rong)歸于(yu)(yu)根本(ben)絕緣（JY）。
4.運(yun)用場合(he)不同
兩者運用(yong)場合不同，安(an)規(gui)Y1電容用(yong)于跨接(jie)(jie)一二次側；安(an)規(gui)Y2電容用(yong)于跨接(jie)(jie)次側對維護大(da)地即FG線;
5.體(ti)積(ji)不同(tong)
容(rong)量相(xiang)同(tong)(tong)但體積不同(tong)(tong)。容(rong)量相(xiang)同(tong)(tong)的情況下，安(an)規Y1電容(rong)體積要比安(an)規Y2電容(rong)恰當大(da)一點。
弄(nong)清(qing)楚了安規Y1電(dian)(dian)容(rong)和安規Y2電(dian)(dian)容(rong)之間的(de)差異，在(zai)(zai)選(xuan)購安規Y電(dian)(dian)容(rong)的(de)時候使(shi)用(yong)什(shen)(shen)么(me)場合就挑(tiao)選(xuan)什(shen)(shen)么(me)樣的(de)電(dian)(dian)容(rong)了。電(dian)(dian)容(rong)沒(mei)選(xuan)對(dui)可不是小事，不只費錢(qian)費時間費精力，類型不對(dui)的(de)電(dian)(dian)容(rong)用(yong)在(zai)(zai)產品上(shang)簡單出現各種(zhong)問(wen)題，所(suo)以在(zai)(zai)選(xuan)購電(dian)(dian)容(rong)時一定(ding)要注意類型類型問(wen)題。