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Ceramic capacitor production principle and type classification www.jyhjec.com

Published on:2021-05-27

  Using high-dielectric constant ceramic capacitors (barium titanate titanium monoxide) extruded into tubes, discs or discs as the medium, and using the sintering method to plate silver on the ceramics as electrodes. It is divided into high-frequency porcelain and low-frequency porcelain. Capacitors with small positive capacitance temperature coefficients are used in high-stability oscillation circuits as loop capacitors and pad capacitors. Low frequency ceramic capacitors are limited to be used as bypass or DC blocking in circuits with lower operating frequencies, or where stability and loss are not high requirements (including high frequency.
   It is divided into high-frequency porcelain and low-frequency porcelain. Ceramic capacitors with a small positive capacitance temperature coefficient are used in high-stability oscillation circuits as loop capacitors and pad capacitors. Low-frequency ceramic capacitors are limited to bypass or DC blocking in circuits with lower operating frequencies, or occasions where stability and loss are not high (including high frequency). Such capacitors are not suitable for use in pulse circuits because they are susceptible to breakdown by pulse voltage. Ceramic capacitors can be divided into plug-in and patch type according to different packages! According to the different media, it can be divided into type I ceramic dielectric capacitors and type II ceramic dielectric capacitors. Usually NP0, SL0, COG are type I ceramic capacitors, X7R, X5R, Y5U, and Y5V are type II ceramic capacitors, and type I ceramic capacitors. The capacity stability is very good, basically does not change with temperature, voltage, time, etc., but the general capacity is very small, and the II type ceramic capacitor capacity stability is very poor, with a large change in temperature, voltage, and time, so Generally used in occasions that do not require high capacity stability, such as filtering!