貼片式電容的作用有哪些呢？一起和小編來看看吧。
貼片電(dian)(dian)(dian)容(rong)(rong)按材質(zhi)分可分為NPO(COG)、X7R、X5R、Y5V等。下面分析NPO(COG)和X7R兩種材質(zhi)的(de)貼片電(dian)(dian)(dian)容(rong)(rong)特性。NPO(COG)貼片電(dian)(dian)(dian)容(rong)(rong)屬(shu)于Class1溫度補償(chang)型(xing)電(dian)(dian)(dian)容(rong)(rong)。它的(de)容(rong)(rong)量穩(wen)定，幾乎不隨(sui)溫度、電(dian)(dian)(dian)壓(ya)、時(shi)間的(de)變化(hua)而變化(hua)。尤其(qi)適用于高頻電(dian)(dian)(dian)路中。
貼(tie)片式電(dian)容(rong)作(zuo)用主要是清除由芯(xin)片自身(shen)產生的各(ge)種高(gao)頻信號(hao)對其他芯(xin)片的串擾，從而讓各(ge)個芯(xin)片模塊能夠(gou)不受干(gan)擾的正常(chang)工作(zuo)。在高(gao)頻電(dian)子(zi)振(zhen)蕩(dang)線(xian)路(lu)中(zhong)，貼(tie)片式電(dian)容(rong)與晶體振(zhen)蕩(dang)器等元件一起組成振(zhen)蕩(dang)電(dian)路(lu)，給各(ge)種電(dian)路(lu)提供所需的時鐘頻率。
貼(tie)(tie)(tie)片(pian)(pian)式(shi)(shi)(shi)電(dian)(dian)容(rong)有貼(tie)(tie)(tie)片(pian)(pian)式(shi)(shi)(shi)陶瓷電(dian)(dian)容(rong)、貼(tie)(tie)(tie)片(pian)(pian)式(shi)(shi)(shi)鉭電(dian)(dian)容(rong)、貼(tie)(tie)(tie)片(pian)(pian)式(shi)(shi)(shi)鋁電(dian)(dian)解電(dian)(dian)容(rong)。貼(tie)(tie)(tie)片(pian)(pian)式(shi)(shi)(shi)陶瓷電(dian)(dian)容(rong)無極性，容(rong)量也很小（PF級），一般(ban)可以承受的(de)溫度和電(dian)(dian)壓都很高，常用于高頻(pin)濾波(bo)。
貼片電(dian)容(rong)
貼(tie)片式鉭電容的特點是壽命長、耐高(gao)溫(wen)、準(zhun)確度高(gao)、濾(lv)(lv)高(gao)頻改波性能(neng)極(ji)好，不(bu)過容量較小(xiao)、價格也比鋁電容貴，而且耐電壓及電流能(neng)力相對較弱。它被應用(yong)于小(xiao)容量的低頻濾(lv)(lv)波電路中(zhong)。
貼(tie)片鉭電容與陶(tao)瓷電容相比，其表(biao)面(mian)均(jun)有電容容量和耐壓標識，其表(biao)面(mian)顏色通常有黃色和黑色兩(liang)種(zhong)。例如200-25即(ji)表(biao)示容量200μF，耐壓25V。
貼(tie)片(pian)式(shi)鋁電(dian)(dian)解電(dian)(dian)容擁有比貼(tie)片(pian)式(shi)鉭電(dian)(dian)容更大的容量(liang)，其(qi)多(duo)見(jian)于(yu)顯卡上，容量(liang)在300μF~1500μF之間(jian)，其(qi)主要是滿足(zu)電(dian)(dian)流低頻的濾波和(he)穩(wen)壓(ya)作(zuo)用。
在此非常(chang)的(de)感(gan)謝(xie)每一位讀(du)者的(de)閱讀(du)，是你們的(de)閱讀(du)給予了小編支持與(yu)動(dong)力。
