There are many types of commonly used capacitors, and their classification methods also vary. Below are several common capacitors. The main characteristics of ceramic capacitors are low dielectric loss, high stability of capacitance to temperature, frequency, voltage, and time, and low price. They are widely used. Ceramic capacitors can be divided into two types: low-voltage low-power and high-voltage high-power. Common low-voltage low-power capacitors include ceramic chips, ceramic tubes, and ceramic dielectric monolithic capacitors, mainly used in high-frequency and low-frequency circuits. High voltage high-power ceramic chip capacitors can be made into drum shaped, bottle shaped, plate shaped, and other forms. Mainly used in power factor compensation, DC power conversion, and other circuits in power systems. Mica capacitors are composed of mica as the medium and multiple layers in parallel. It has excellent electrical and mechanical performance, wide voltage range, high reliability, stable performance, and high capacity accuracy, and can be widely used in high-temperature, high-frequency, pulse, and high stability circuits. However, the production process of mica capacitors is complex, with high cost, large volume, and limited capacity, which limits their scope of use. The most common types of organic thin film capacitors are polyester capacitors and polypropylene capacitors. Polyester capacitors have a small volume, a large capacity range, and good heat and moisture resistance. Electrolytic capacitors, also known as polar capacitors, are called non polar capacitors. The medium of electrolytic capacitors is a very thin oxide film, and the capacity can be made very large. Generally, the nominal capacity is 1mF to 10000mF. There are two types of electrolytic capacitors: positive electrode "+" and negative electrode "-". During use, it should be ensured that the positive electrode potential is higher than the negative electrode potential; Otherwise, the leakage current of the electrolytic capacitor will increase, causing the capacitor to overheat and damage, or even explode. Author: Tomato Flavored Monster https://www.bilibili.com/read/cv16673549/ Source: Bilibili
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