A ceramic capacitor is a capacitor that uses a ceramic material as a medium, a metal film is coated on the surface of the ceramic, and then is sintered at a high temperature as an electrode. It is usually used in high-stability oscillation circuits as loops, bypass capacitors and pad capacitors. Ceramic chip capacitors are 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 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.

The typical application of ceramic chip capacitors is to eliminate high-frequency interference, and are widely used in negative ion products, lasers, X-ray machines, control and measurement equipment, high voltage packages, igniters, power equipment, voltage doublers, welding machines, classic spraying and other needs High-voltage and high-frequency electromechanical equipment.

MLCC (Class 1)-miniaturization, high frequency, ultra-low loss, low ESR, high stability, high withstand voltage, high insulation, high reliability, non-polarity, low capacitance, low cost, high temperature resistance. Mainly used in high Frequency circuit.

MLCC (Class 2)-miniaturization, high specific volume, medium and high voltage, non-polarity, high reliability, high temperature resistance, low ESR, low cost. Mainly used in medium and low frequency circuits for direct isolation, coupling, bypass and filtering, etc. Capacitors are used.