BFC246956562

Film Capacitors

Film capacitors, or film dielectric capacitors, are capacitors that use a thin plastic film as the dielectric. The dielectric film used in some film capacitors is a polyester film, also known as Mylar, made of polyethylene terephthalate (PET). This type of capacitor is also known as a polyester capacitor, an MKP capacitor (Motor, Kondensator, Polyester—motor, capacitor, polyester) or an MKT capacitor (Motor, Kondensator, Thermistor—motor, capacitor thermistor). Other types of film capacitors may be made from polycarbonate, polyphenylene sulfide (PPS) or polypropylene (PP).

The BFC246956562 application field and working principle mainly relates to the type of Mylar film capacitor, which is widely used in power supply design and audio equipment. This type of capacitor has a high breakdown voltage and can handle large voltages and currents. It also has good temperature stability, low dielectric absorption, low losses, and high capacitance.

In terms of working principle, film capacitors are based on the electrostatic principle, in which the electric field created by the voltage applied across the capacitor\'s plates produces a mechanical force on charges located in this field. This force causes the charges to move around in the electric field, resulting in a displacement current that is proportional to the applied voltage.

Film capacitors have a wide range of uses, from bypass and decoupling applications, to power supply and filter applications, to audio and DC blocking applications. They are also used in a variety of medical electronics, automotive electronics, and telecommunications applications.

In terms of advantages, film capacitors are generally preferred to electrolytic capacitors in applications where cost and size are not a priority. They are reliable, have a long life, and can handle large voltages and currents. Additionally, they offer a high capacitance density, and can be operated directly with AC or DC current.

In conclusion, film capacitors, particularly the BFC246956562 application field and working principle, are suitable for a wide range of power supply design and audio equipment applications. They offer excellent performance in terms of reliability, long life, large voltages, low dielectric absorption, and high capacitance density.