充電器在(zai)充(chong)(chong)電(dian)時(shi)如遇上劣質充(chong)(chong)電(dian)器會出現無故(gu)自燃，爆手(shou)機，甚至是在(zai)充(chong)(chong)電(dian)時(shi)觸電(dian)，引發人員(yuan)傷忙(mang)。這一切都源于(yu)(yu)充(chong)(chong)電(dian)器中(zhong)的(de)電(dian)子(zi)元器件的(de)品質問題。手(shou)機充(chong)(chong)電(dian)器y電(dian)容用于(yu)(yu)共模濾波，它接于(yu)(yu)L于(yu)(yu)地(di)或N于(yu)(yu)地(di)之(zhi)間，濾除L對地(di)或N對地(di)的(de)共模信號，y電(dian)容通常(chang)對稱使用，作用主要有旁路(lu)；去(qu)耦；濾波；儲能(neng)。

在入力初(chu)級(ji)端(duan)(duan)有(you)個耐(nai)壓(ya)400v的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)容(rong)，那是(shi)(shi)主濾(lv)波(bo)電(dian)(dian)(dian)(dian)(dian)容(rong)，濾(lv)除市(shi)電(dian)(dian)(dian)(dian)(dian)整流后(hou)的(de)(de)(de)雜波(bo)，使后(hou)面電(dian)(dian)(dian)(dian)(dian)路能(neng)(neng)得到更為平(ping)穩的(de)(de)(de)直流正弦波(bo)，只有(you)雜波(bo)越(yue)(yue)(yue)少，電(dian)(dian)(dian)(dian)(dian)路才能(neng)(neng)更好的(de)(de)(de)穩定工作，至(zhi)于電(dian)(dian)(dian)(dian)(dian)容(rong)選(xuan)400v耐(nai)壓(ya)值(zhi)，開關(guan)電(dian)(dian)(dian)(dian)(dian)路工作后(hou)，其電(dian)(dian)(dian)(dian)(dian)容(rong)兩端(duan)(duan)將有(you)300多伏壓(ya)降，再加上(shang)(shang)通電(dian)(dian)(dian)(dian)(dian)瞬(shun)間峰(feng)值(zhi)電(dian)(dian)(dian)(dian)(dian)壓(ya)，所以如(ru)果耐(nai)壓(ya)值(zhi)太(tai)小，會(hui)影起電(dian)(dian)(dian)(dian)(dian)容(rong)暴裂(lie)，而輸(shu)(shu)出端(duan)(duan)電(dian)(dian)(dian)(dian)(dian)容(rong)視其輸(shu)(shu)出電(dian)(dian)(dian)(dian)(dian)壓(ya)大小選(xuan)擇適合的(de)(de)(de)耐(nai)壓(ya)值(zhi)，如(ru)5v則耐(nai)壓(ya)值(zhi)是(shi)(shi)10v，該電(dian)(dian)(dian)(dian)(dian)容(rong)也是(shi)(shi)濾(lv)波(bo)作用，使充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)輸(shu)(shu)出平(ping)穩的(de)(de)(de)直流電(dian)(dian)(dian)(dian)(dian)，至(zhi)于容(rong)量(liang)(liang)的(de)(de)(de)大小，前面耐(nai)壓(ya)大的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)容(rong)一般(ban)選(xuan)擇47~470uF，輸(shu)(shu)出電(dian)(dian)(dian)(dian)(dian)容(rong)一般(ban)100~1000uF，原則上(shang)(shang)是(shi)(shi)容(rong)量(liang)(liang)越(yue)(yue)(yue)大越(yue)(yue)(yue)好，但實際上(shang)(shang)容(rong)量(liang)(liang)越(yue)(yue)(yue)大漏電(dian)(dian)(dian)(dian)(dian)流越(yue)(yue)(yue)大，y電(dian)(dian)(dian)(dian)(dian)容(rong)通交流阻直流。所以我們(men)為手機充(chong)電(dian)(dian)(dian)(dian)(dian)時(shi)要選(xuan)擇質量(liang)(liang)好的(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)。而y電(dian)(dian)(dian)(dian)(dian)容(rong)的(de)(de)(de)品質好壞直接充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)的(de)(de)(de)質量(liang)(liang)。
作為(wei)手機充電器中的y電容，質量(liang)保障是很(hen)重要的，選購(gou)y電容時選擇(ze)必須有安(an)全檢測機構的認證(zheng)和各工業(ye)國的安(an)規認證(zheng)，一般產品上都有認證(zheng)標(biao)識。
手機充電器y電容，y電容，jec y電容，y電容器
　　手(shou)機充(chong)電(dian)(dian)器(qi)y電(dian)(dian)容(rong)用于共模濾波，原則上是容(rong)量越大(da)越好(hao)(hao).但實際上容(rong)量越大(da)漏電(dian)(dian)流(liu)(liu)越大(da)，y電(dian)(dian)容(rong)通交流(liu)(liu)阻直(zhi)流(liu)(liu).所以(yi)我們為手(shou)機充(chong)電(dian)(dian)時要選擇質(zhi)(zhi)量好(hao)(hao)的(de)充(chong)電(dian)(dian)器(qi)，而y電(dian)(dian)容(rong)的(de)品(pin)質(zhi)(zhi)好(hao)(hao)壞(huai)直(zhi)接充(chong)電(dian)(dian)器(qi)的(de)質(zhi)(zhi)量.