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盘点电解电容和瓷片电容的区别有哪些?
作者:红宝电子 来源:www.jnhongbao.com 日期:2022-12-06 14:51 浏览

  电解电容和瓷片电容的定义如下:

  The definitions of electrolytic capacitor and ceramic chip capacitor are as follows:

  瓷片电容(如图一)是一种用陶瓷材料为介质,在陶瓷表面涂覆一层金属薄膜,再经高温烧结后作为电极而成的电容器。通常用于高稳定振荡回路中,作为回路、旁路电容器及垫整电容器。

  Porcelain chip capacitor (as shown in Figure 1) is a capacitor made of ceramic materials as the medium, coated with a layer of metal film on the ceramic surface, and then sintered at high temperature as the electrode. It is usually used in high stability oscillation circuit as circuit, bypass capacitor and padding capacitor.

三和瓷片电容.png

  瓷片电容

  Porcelain chip capacitor

  电解电容(如图二)是电容的一种,金属箔为正极(铝或钽),与正极紧贴金属的氧化膜(氧化铝或五氧化二钽)是电介质,阴极由导电材料、电解质(电解质可以是液体或固体)和其他材料共同组成,因电解质是阴极的主要部分,电解电容因此而得名。同时电解电容正负不可接错。

  Electrolytic capacitor (as shown in Figure 2) is a kind of capacitor. The metal foil is the positive pole (aluminum or tantalum). The oxide film (aluminum oxide or tantalum pentoxide) that is close to the metal with the positive pole is the dielectric. The cathode is composed of conductive materials, electrolyte (electrolyte can be liquid or solid) and other materials. Since the electrolyte is the main part of the cathode, the electrolytic capacitor gets its name. At the same time, the positive and negative of the electrolytic capacitor must not be connected incorrectly.

1669701525163042.png

  电解电容

  Electrolytic capacitor

  电解电容与瓷片电容的构造和特性有很大的不同!前者是有极大容量低频特性!后者是无极小容量高频特性!

  The structure and characteristics of electrolytic capacitor and ceramic chip capacitor are very different! The former has great capacity and low frequency characteristics! The latter is high frequency characteristic without minimum capacity!

  电解电容多用在藕合,滤波,退藕,等音频及低通电路!容量多为几微微法到0.1微法!

  Electrolytic capacitors are mostly used in coupling, filtering, decoupling, audio and low-pass circuits! The capacity ranges from a few microf to 0.1 microf!

  瓷片电容用在振荡,选频,藕合,反馈等高频和特高频电路!瓷片电容的高频特性很好!稳定性也很好!是高频电路里的最常用电容!容量多为0.5微法到几千至上万微法!

  Ceramic capacitors are used in high-frequency and ultra-high frequency circuits such as oscillation, frequency selection, coupling, feedback, etc! High frequency characteristics of ceramic chip capacitor are very good! Very stable! It is the most commonly used capacitor in high-frequency circuit! The capacity ranges from 0.5 microf to thousands to tens of thousands of microf!

  电解电容与瓷片电容两者差异:

  Difference between electrolytic capacitor and ceramic chip capacitor:

  电解电容容量大,有极性,等效串联电感大;瓷片电容容量小,无极性,等效串联电感小。

  The electrolytic capacitor has large capacity, polarity and large equivalent series inductance; Ceramic chip has small capacitance, no polarity and small equivalent series inductance.

  电解电容低频特性好,多用于低频电路;瓷片电容高频特性好,多用于高频电路。

  Electrolytic capacitors have good low-frequency characteristics and are mostly used in low-frequency circuits; Porcelain chip capacitors have good high-frequency characteristics and are mostly used in high-frequency circuits.

  电解电容能滤除低频纹波,故可用作低通滤波;瓷片电容可滤除高频纹波,故可用作高通滤波。

  Electrolytic capacitor can filter low-frequency ripple, so it can be used as low-pass filter; Ceramic chip capacitor can filter high-frequency ripple, so it can be used as high pass filter.

  电解电容不能用于纯交流电源电路;瓷片电容可用于纯交流电路。

  Electrolytic capacitors cannot be used in pure AC power circuits; Ceramic chip capacitors can be used in pure AC circuits.

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