1.瓷介電容器 Ceramic Capacitors
用氧化鈦 , 鈦酸鍶等材料制成陶瓷並以此作為介質制成的電容器稱為陶瓷電容器 ,這種容器廣泛使用于各種電子設備 .
The ceramic is a dielectric whose main material is Titanium Xxide Titanate or Strontium. It becomes ceramic capacitor after a process called silver coating and is widely applied in various kind of electronic equipment.
2.瓷介電容器的分類 Classification
依據瓷介電容器的特點 , 一般可分為三大類 .
Basically, ceramic capacitor can be classified into 3 classes, according to distinct application features.
種類I:溫度補償電容器 Class I : Temperature Compensation Type Capacitor (T.C.)
溫度補償電容器主要由氧化鈦組成 , 具有較低的介電常數 ,低損耗 ,高穩定性 , 電容量隨度變化近以絨性 . 這種電容器主要使用於階振回路或其它高要求值和高穩性的電路.
Temperature compensation capacitors mainly consist of Titanium. They have the characteristics of low constant, low losses (high quality factor) ,high stability and linear temperature relationship . All these features suited its capability for temperature compensating mainly use in resonant circuits or in other circuits for which high Q and high temperature-base stability of circuit constant are required.
種類II:高電介質常數容器 Class II:High-Dielectric Constant Type Capacitor (Hi-K)
高電介質電容器主要以鈦酸負鋇為苦基而製成, 此類電容器容量大 . 體積小 .低損耗 ,在電路中隔直流 .旁路. 耦合之用.
High-dielectric are mainly consist of Barium Titanate. It is known as Hi-k because of its high power factor. These capacitors which have the characteristics of high capacitance value, small internal impedance and excellent power factors are widely used in electronic circuits such as coupling, decoupling and by pass purposes.
種類III:半導體電容器 Class III:Semi-Conductive Type Capacitor (S.C.)
圓片型半導體電容器具有較高介電常數, 電容器體積更小, 電容量更大, 有表面和晶界層之分 .
These disc type semiconductive capacitors are reformed smaller size with larger capacitance than usual Hi-K type ceramic capacitors.These capacitors are widely used in electronics circuits such as constant detemination, coupling and by-pass purposes.
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