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Of the specifications of the ceramics capacitors and classification

by:SMiLer     2021-02-13
Ceramics capacitor specification and classification believe everybody knows hot capacitance, ceramics capacitor more also accounted for the proportion of ceramics capacitors in the circuit and the bypass capacitor are indispensable, ceramics capacitors are all made of ceramic material fire while the material is the same, but in a different circuit on ceramics capacitor specification is also used by a different specification: 1000 v - 6000V高频瓷片电容高频瓷片电容一般主要都是运用于较高稳定振荡的回路中,因此其在稳定性方面要求是比较高的,如比较常见的耦合电容以及高压旁路就会选择用高频瓷片电容  最主要的优点就是可以耐受高温以及耐磨性比较强,如日常生活中常见的电视接收机上就会使用高压瓷片电容  规格二:50V以下低频瓷片电容低频瓷片电容主要是运用在一些工作频率比较低的回路中,在这类型的回路中往往对于电容的稳定性以及损耗的程度要求都不是很高  尤其是在一些脉冲比较强的电路中是不能使用低频瓷片电容的,否则很有可能会被电压直接击穿  二者的差异比较二者不同类型的瓷片电容规格识别可以直接通过电容器或者是电路来进行判断  一般来说可以耐受高压,绝缘性比较好,而且比较可靠,运用于高压电路中的就属于高频瓷片电容  而低频瓷片电容相比较而言可靠性以及成本都比较低,多数时候都是运用于一些低频电路以及耦合电路等的电容器中  快速识别方法一般来说在音频控制器以及分频器上使用的电容都是高频瓷片电容,因为其容量会比较大,通过金属塑料薄膜的使用可以获得更佳的音质  其次就是在滤波电容中,其容量的特性决定了使用电解电容的效果会比较好,但在使用的过程中还要注意抑制高频阻抗不断上升的情况  所以针对瓷片电容规格的识别来说,可以通过判断回路的电压以及特性就可以快速鉴别出其所使用的瓷片电容,同时在进行识别的时候也可以参照电阻的规格识别方法   瓷片电容规格  1、高压陶瓷电容,一般耐压1KV以上的。 2, medium voltage ceramic capacitors, generally refers to 100 - 1 kv. 3, low voltage ceramic capacitors, usually under 100 v. As for the model: like capacitors, capacitance values are basic. 1 p - There are 104 pf. Ceramics electric capacity of capacitor on pF ( 10 - 12th F) For the unit, the early products use annotations directly, more like 1000 p, 220 p, etc. ; Now generally to commonly used index notation, such as 102, 221, the first two digits is an effective number of capacitance, behind a single digit is added after the number of zero, such as 102 said behind effective number is 10, 2, add 2 0, namely 1000 pf; Said 221 behind the number 22, 1, add 1 0, namely 220 pf. How to classify ceramics capacitor according to the dielectric materials can be divided into: high capacitor dielectric constant and low dielectric constant capacitor; According to the working frequency can be divided into: high frequency porcelain capacitor and low-frequency ceramic capacitor; According to the working voltage can be divided into: high-voltage ceramic capacitor and low-voltage ceramic capacitor. According to the shape of structure can be divided into: wafer form, tubular, wear heart type, cylindrical and fold type.
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