電容器及介質(zhì)種類介紹
*HIGH FREQUENCY TYPE: The capacitor of this kind dielectric material is considered as Class Ⅰ capacitor, including high frequency COG capacitor and temperature compensating capacitor such as HG, LG, PH, RH, SH, TH, UJ, SL. The electrical properties of COG capacitor are the most stable one and have little change with temperature, voltage and time. They are suited for applications where low-
losses and high-stability are required, such as filters, oscillators, and timing circuits.
*高頻類: 此類介質(zhì)材料的電容器為Ⅰ類電容器，包括通用型高頻 COG 電容器和溫度補(bǔ)償型高頻 HG、LG、PH、RH、SH、TH、UJ、SL 電容器。其中 COG 電容器電性能最穩(wěn)定，幾乎不隨溫度、電壓和時(shí)間的變化而變化。適用于低損耗，穩(wěn)定性要求高的高頻電路，如濾波器，振動(dòng)器和計(jì)時(shí)電路中。
*X7R/X5R: X7R/X5R material is a kind of material which has high dielectric constant. The capacitor made of this kind material is considered as Class Ⅱ capacitor whose capacitance is higher than that of Class Ⅰ.These capacitors are classified as having a semi-satble temperature characteristic and used over a wide temperature range, such in these kinds of circuits, DC-blocking, decoupling,bypassing, frequency discriminating etc.
*X7R/X5R: 此類介質(zhì)材料的電容器為Ⅱ類電容器，具有較高的介電常數(shù)，容量比Ⅰ類電容器高，具
有較穩(wěn)定的溫度特性，適用于容量范圍廣，穩(wěn)定性要求不高的電路中，如隔直、耦合、旁路、鑒頻等電路中。
*Z5U: The capacitor made of this kind of material is considered as Class Ⅲ capacitor, whose temperature characteristic is between that of X7R and Y5V. The capacitance of this kind of capacitor is unstable and sensible to temperature and voltage. Ideally suited for bypassing and decoupling application circuits operating with low DC bias in the environment approaches to roomtemperature.
*Z5U: 此類介質(zhì)的電容器為Ⅲ類電容器，其溫度特性介于 X7R 和 Y5V 之間，容量穩(wěn)定性較差，對溫度、電壓等條件較敏感，適用于要求大容量，使用溫度范圍接近于室溫的旁路，耦合等，低直流偏壓的電路中。
*Y5V: The capacitors made of this kind of material is the highest dielectric constant of all ceramic capccitors. They are used over a moderate temperature range in application where high capacitance is required because of its unstable temperature coefficient, but where moderate losses and capacitance changes can be tolerated. Its capacitance and dissipation factors are sensible to measuring conditions, such as temperature and voltage, etc.
*Y5V: 此類介質(zhì)的電容器為Ⅲ類電容器，是所有電容器中介電常數(shù)最大的電容器，但其容量穩(wěn)定性較
差，對溫度、電壓等條件較敏感，適用于要求大容量，溫度變化不大的電路中。
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