38FB4420

Mica capacitor is a kind of film capacitor, with the advantages of high insulation resistance, low temperature coefficient, good self-healing properties, wide temperature range and so on. It is mainly used in high frequency and high voltage fields of electronic equipment, and is often used as an energy storage component in military communications and radar systems. 38FB4420 mica capacitor is one of the mica capacitors.

Application Field of 38FB4420 Mica Capacitor

38FB4420 mica capacitor is suitable for high voltage high frequency fields,especially in voltage regulating circuits and pulse units which have high energy,high voltage,large operating temperature and high reliability requirements.Its main application fields are military communication,radar and satellites fields. It is mainly used for power supplies,energy storage and load modules in military communication system, radar system and satellite communication system.

Working Principle of 38FB4420 Mica Capacitor

38FB4420 mica capacitor is a kind of film capacitor. Its working principle is that two stacks of metal foil electrodes are separated by a dielectric layer, forming a plate capacitor structure. The dielectric layer is composed of mica sheet and the insulation oil on it. In the process of forming, two metal foil electrodes are formed respectively according to the specified size. The two stacks of mica sheets and insulation oil are placed in the middle, and the two layers are fixed to form a capacitor structure. When the capacitor is in use, the potential of one of the ends is fixed, while the potential of the other end can be changed by the circuit conduction. So as to realize the charging and discharging functions of the capacitor.

In conclusion, 38FB4420 mica capacitor is a kind of film capacitor which is mainly used for high voltage high frequency fields, such as military communication, radar and satellites fields. Its working principle is based on the plate capacitor structure, which consists of two stacks of metal foil electrodes and dielectric layer.