不同的電容有不同的特性，今天我們就來探討下瓷片電容、獨石電容和貼片電容的區別在哪里吧。

瓷(ci)(ci)(ci)片電(dian)(dian)(dian)容(rong)(rong)是一種(zhong)用(yong)陶瓷(ci)(ci)(ci)材料(liao)作(zuo)介質(zhi)，在(zai)(zai)陶瓷(ci)(ci)(ci)表(biao)面涂覆一層金屬薄膜(mo)，再(zai)經高(gao)溫(wen)燒結(jie)后作(zuo)為(wei)電(dian)(dian)(dian)極而成(cheng)的(de)(de)電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)。通(tong)常(chang)用(yong)于(yu)高(gao)穩定振蕩回路(lu)(lu)中(zhong)(zhong)，作(zuo)為(wei)回路(lu)(lu)、旁(pang)路(lu)(lu)電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)及(ji)墊整電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)。瓷(ci)(ci)(ci)片電(dian)(dian)(dian)容(rong)(rong)分(fen)高(gao)頻(pin)(pin)瓷(ci)(ci)(ci)介和(he)低頻(pin)(pin)瓷(ci)(ci)(ci)介兩種(zhong)。具有(you)小(xiao)的(de)(de)正電(dian)(dian)(dian)容(rong)(rong)溫(wen)度系數的(de)(de)電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)，用(yong)于(yu)高(gao)穩定振蕩回路(lu)(lu)中(zhong)(zhong)，作(zuo)為(wei)回路(lu)(lu)電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)及(ji)墊整電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)。低頻(pin)(pin)瓷(ci)(ci)(ci)介電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)限于(yu)在(zai)(zai)工(gong)作(zuo)頻(pin)(pin)率(lv)較(jiao)低的(de)(de)回路(lu)(lu)中(zhong)(zhong)作(zuo)旁(pang)路(lu)(lu)或(huo)隔直流用(yong)，或(huo)對穩定性和(he)損耗要求不高(gao)的(de)(de)場(chang)合(he)〈包括高(gao)頻(pin)(pin)在(zai)(zai)內〉。這種(zhong)電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)不宜使用(yong)在(zai)(zai)脈(mo)沖電(dian)(dian)(dian)路(lu)(lu)中(zhong)(zhong)，因為(wei)它們易(yi)于(yu)被脈(mo)沖電(dian)(dian)(dian)壓擊穿。

優點：穩定，絕緣性好，耐高壓

缺點：容量比較(jiao)小(xiao)

獨(du)石(shi)電(dian)容

獨石電容是多層陶瓷電容器的別稱，簡稱MLCC，根據所使用的材料，可分為三類。

一類為溫(wen)度(du)補償類NPO電(dian)(dian)(dian)介(jie)質這(zhe)種電(dian)(dian)(dian)容(rong)器電(dian)(dian)(dian)氣性能Z穩定(ding)，基本上(shang)不隨溫(wen)度(du)、電(dian)(dian)(dian)壓、時間的(de)改變，屬超穩定(ding)型(xing)、低損耗電(dian)(dian)(dian)容(rong)材(cai)料類型(xing)，適用(yong)在(zai)對穩定(ding)性、可靠(kao)性要求較高(gao)的(de)高(gao)頻、特高(gao)頻、甚高(gao)頻電(dian)(dian)(dian)路中。

二類為高介電(dian)常數類X7R電(dian)介質(zhi)由于X7R是一種強電(dian)介質(zhi)，因而能制造出容(rong)量(liang)比NPO介質(zhi)更(geng)大的電(dian)容(rong)器(qi)。這種電(dian)容(rong)器(qi)性(xing)能較穩定，隨(sui)溫度、電(dian)壓時間的改變，其(qi)特(te)有的性(xing)能變化并(bing)不顯著(zhu)，屬穩定電(dian)容(rong)材料類型(xing)，使用在(zai)隔直、耦合、傍路(lu)、濾波電(dian)路(lu)及可靠性(xing)要(yao)求較高的中高頻(pin)電(dian)路(lu)中。

三類(lei)(lei)為半導(dao)體類(lei)(lei)Y5V電(dian)(dian)介(jie)質這(zhe)種電(dian)(dian)容(rong)(rong)器具有較(jiao)高(gao)的(de)介(jie)電(dian)(dian)常(chang)數，常(chang)用(yong)于生產(chan)比容(rong)(rong)較(jiao)大(da)、標(biao)稱容(rong)(rong)量(liang)較(jiao)高(gao)的(de)大(da)容(rong)(rong)量(liang)電(dian)(dian)容(rong)(rong)器產(chan)品。但其容(rong)(rong)量(liang)穩定(ding)性(xing)較(jiao)X7R差，容(rong)(rong)量(liang)、損耗對溫度、電(dian)(dian)壓等測(ce)試條件(jian)較(jiao)敏感，主要用(yong)在電(dian)(dian)子整(zheng)機中的(de)振蕩(dang)、耦合、濾(lv)波(bo)及旁路(lu)電(dian)(dian)路(lu)中。

特(te)(te)點：溫度特(te)(te)性(xing)(xing)好(hao)，頻(pin)率(lv)特(te)(te)性(xing)(xing)好(hao)。一般(ban)電(dian)(dian)容(rong)隨著頻(pin)率(lv)的上(shang)升,電(dian)(dian)容(rong)量呈現下降的規(gui)律，獨石電(dian)(dian)容(rong)下降比較少，容(rong)量比較穩定。

陶瓷電容

陶(tao)瓷電(dian)(dian)容(rong)(rong)(rong)用(yong)(yong)用(yong)(yong)高(gao)介(jie)(jie)電(dian)(dian)常數的(de)電(dian)(dian)容(rong)(rong)(rong)器(qi)陶(tao)瓷〈鈦酸鋇一氧化(hua)鈦〉擠壓成(cheng)圓管、圓片或圓盤作為介(jie)(jie)質(zhi)，并用(yong)(yong)燒滲法(fa)將銀鍍在(zai)陶(tao)瓷上(shang)作為電(dian)(dian)極制成(cheng)。它又分高(gao)頻瓷介(jie)(jie)和(he)低(di)頻瓷介(jie)(jie)兩(liang)種。具有小的(de)正電(dian)(dian)容(rong)(rong)(rong)溫度系數的(de)電(dian)(dian)容(rong)(rong)(rong)器(qi)，用(yong)(yong)于(yu)高(gao)穩定振(zhen)蕩回路(lu)中，作為回路(lu)電(dian)(dian)容(rong)(rong)(rong)器(qi)及墊(dian)整電(dian)(dian)容(rong)(rong)(rong)器(qi)。低(di)頻瓷介(jie)(jie)電(dian)(dian)容(rong)(rong)(rong)器(qi)限于(yu)在(zai)工作頻率較低(di)的(de)回路(lu)中作旁路(lu)或隔直流用(yong)(yong)，或對穩定性和(he)損耗要求不高(gao)的(de)場(chang)合(he)〈包(bao)括高(gao)頻在(zai)內(nei)〉。