Film Capacitors

Film capacitors are components of high reliability that are widely used in leakage current, withstand voltage, insulation, surge reliability and other factors. Film capacitors, or film dielectric capacitors, are a type of capacitor that uses a thin plastic film as the dielectric. The film may be coated with a conductive metallic layer, such as aluminum, or have a conductive impregnation in order to improve its capacitive characteristics. Film capacitors are mainly used to reduce the ripples in power supplies, filters, signal lines, coupling, linear and bypassing functions.

BFC236857222 Application Field and Working Principle

The BFC236857222 is a type of film capacitor series for power applications. The design is ideal for high-density power systems, and is especially suitable for applications in high-temperature environments. The capacitor is made of polypropylene film with a high temperature rating of 105°C and a voltage rating of up to 400V. The capacitance ranges from 0.1uF to 1uF, and the tolerance of the capacitance value is relatively loose.

The working principle of the film capacitor is relatively simple. A thin film of a dielectric material is sandwiched between two metal plates, or electrodes, and the dielectric material is selected carefully to provide the desired capacitance for a given voltage. The resistance of the material is extremely low, and thus the capacitor allows for very low resistance. The dielectric material also plays an important role in the function of the capacitor, since it determines the capacitance value, voltage rating and operating temperature of the capacitor.

The BFC236857222 series is suitable for high surge applications with high temperature endurance and strong capacitance stability requirements. It is designed with an alloy terminations which offers high robustness and anti-vibration characteristics, making it suitable for high temperature working environments.

This film capacitor series provides direct advantages over other types of capacitors in terms of endurance, reliability and service life. It has a high stability over temperature and humidity, making it suitable for high temperature application and operating environments.

The BFC236857222 film capacitor series is an ideal choice for power supply applications, such as UPS, charging device and LED lighting. It also makes a good choice for other general purpose applications, such as power factor correction, filtering, coupling, and bypassing.