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Film Capacitors

Film capacitors, commonly referred to as film dielectric capacitors, are capacitors with a film layer as the dielectric material. This being said, film capacitors actually use a variety of film plastics as their dielectric material, including polyester, polypropylene, polycarbonate, polystyrene, polyimide, polyurethanes and more. They are the most common type of capacitor used commercially and offer several advantages compared to other types of capacitors.

BFC236642393 application field and working principle

The BFC236642393 film capacitor is primarily used for high-end applications such as high current, high voltage regulation, high energy storage, and pulse power applications. This is due to its ability to tolerate high ripple current and withstand high voltage without capacity reduction for extended periods of time. By utilizing the property of a "film" dielectric, that of not shrinking in high temperatures, the capacitor is also highly stable over time, providing excellent reliability.

The way a film capacitor works is similar to other types of capacitors, where it stores electrical energy in the form of an electric field. More specifically, electrostatic polarization occurs within the film layers of the capacitor, causing each layer to take on an opposite charge. This opposing charge causes an electric field to be created between the layers, which stores energy. When the current changes direction, there is a resulting potential difference between the two layers. This potential difference is what allows electricity to flow between them.

The BFC236642393 film capacitor contains two metalized layers of poly-2V polypropylene film, which are doped with a polymer layer. This layer is then surrounded by an epoxy-resin layer, which serves to protect the film layers from environmental damages. This combination allows the film capacitor to offer high-efficiency, excellent stability, and operational reliability.

Conclusion

Film capacitors offer several advantages over other types of capacitors. These include a wide range of application, high stability and reliability, high efficiency, and durability. The BFC236642393 film capacitor is an excellent example of this, as it is specifically designed for high-end applications such as high current, high voltage regulation, high energy storage, and pulse power applications.

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