High-voltage ceramic capacitor is an important electronic component. It uses ceramic material as the dielectric and makes electrode plates by spraying silver films on both sides of the ceramic substrate to form a capacitor. This type of capacitors come in various shapes, such as chip, tube, and round. Most of the ceramic capacitors produced by Zhixu Electronics are round, with a blue or earthy appearance. The company also provides tape-type products.
Ceramic capacitors can be divided into two categories: high-frequency ceramics and low-frequency ceramics according to their frequency characteristics. High-frequency ceramic capacitors have a small positive capacitance temperature coefficient, so they are widely used in high-stability oscillation circuits, such as loop capacitors and pad capacitors in key locations. Low-frequency ceramic capacitors are mainly used in circuits with lower operating frequencies as bypass capacitors or to isolate DC current. They are suitable for situations where stability and loss are not high, including some high-frequency applications. However, this type of capacitor is not suitable for use in pulse circuits because it is susceptible to breakdown due to the influence of pulse voltage.
Ceramic capacitors can also be divided into plug-in type and chip type according to their packaging type. From the perspective of dielectric type, they are divided into Type I and Type II ceramic capacitors. Typical Class I ceramic capacitors include NP0, SL0, COG, etc. They are characterized by excellent capacity stability and are almost unaffected by temperature, voltage and time, but usually have a small capacity. Class II ceramic capacitors, such as X7R, .
In high-power, high-voltage applications, the demand for high-voltage ceramic capacitors is growing day by day. These capacitors are required to have miniaturization, high withstand voltage, and good frequency characteristics. With the continuous advancement of materials, electrodes and manufacturing technology, the performance of high-voltage ceramic capacitors has been significantly improved and they have been widely used in many fields. They have become indispensable key components in high-power and high-voltage electronic products. Main application areas include power equipment in power transmission and distribution systems, as well as equipment for processing pulse energy. With the development of technology, high-voltage ceramic capacitors will play an increasingly important role in the power and electronics industry.