BFC237543331

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Film Capacitors

A film capacitor, also called a plastic film capacitor, is a capacitor that uses an organic polymer film as the dielectric, rather than the usual dielectrics of paper or ceramic. The BFC 237543331 film capacitor offers an impressive combination of high volumetric efficiency, low dissipation factor, excellent temperature stability, strong reliability from the highest temperature rated component and strong performance over a broad temperature range.

Applications

Film capacitors are finding applications in many electronic applications and in particular, in automotive electronic systems. These types of capacitors are being increasingly used in power electronic subsystems, such as starters, alternators, and other automotive systems. They are also used as the output filter in very high-frequency (VHF), and ultra-high-frequency (UHF) communication devices, and for the voltage-doubler function in television sets and DC-DC converters. Further, film capacitors are used for high-energy and lightning surge protection, interference suppression, and as input and output capacitors in switched-mode power supplies (SMPS). BFC 237543331 film capacitor offers excellent ESD protection, superb charge and discharge performance and strong performance in a wide temperature range.

Working Principle

The working principle behind a film capacitor is the same as that of any other capacitor. It is based on the storage of energy in the form of an electric field. When two metallic plates separated by a dielectric material are charged with an electric current, the electric field between the plates is created. This electric field stores the energy, which is later released when the charging current has been reversed or stopped.

The BFC 237543331 film capacitor also works on a similar principle, but the way the electric field is generated and stored within the capacitor is much different. The dielectric used is a plastic film, that is placed between two metal electrodes, and a layer of copper foil is used to increase the number of layers. This enhances the capacitance of the capacitor. The electric field is generated when a voltage is applied across the electrodes.

The current through a film capacitor is a combination of charging current, which causes the field to build up, and discharge current, which causes the field to be weakened or reversed. The capacitance of the BFC 237543331 capacitor remains relatively constant through its temperature range, which makes it ideal for applications such as temperature compensation of switched-mode power supplies.

Conclusion

The BFC 237543331 plastic film capacitor is a versatile and dependable capacitor designed for high temperature applications. It is useful for a variety of electronic applications, including power electronic subsystems, UHF and VHF communications, television sets, DC-DC converters, surge protection and switched-mode power supplies (SMPS). Its unique polymer film dielectric provides reliable and stable performance over a wide temperature range, and the advanced copper foil layer maximizes capacitance. With its proven reliability and strong performance, the BFC 237543331 is an excellent choice for any application requiring a compact and efficient capacitor.

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