BFC238321393

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Film Capacitors

A film capacitor, commonly known as a plastic film capacitor, is a capacitor that uses a plastic film as the dielectric. It is a very common type of capacitor available in a wide variety of shapes and sizes. The BFC238321393 is an example of a film capacitor. In this article, we’ll discuss the application field and working principle of the BFC238321393.

Application Field

Film capacitors are typically used in a wide range of applications, from compressor motors, to electronic power supplies, and other low-voltage electronic circuits. The BFC238321393, in particular, is often used in high-frequency applications as it has a high self-resonant frequency. It also has a relatively low dielectric losses at high frequencies, making it useful in noise suppressing circuits.

Working Principle

The working principle of the BFC238321393, and all film capacitors, is based on the fact that when two metallic plates are separated by a layer of dielectric material, an electrical field is created. This field stores energy, allowing the capacitor to act as a temporary storage device for either direct current (DC) or alternating current (AC).

In a film capacitor, the dielectric material is a plastic film. This film is made up of several layers, each layer having a different thickness for various parameters. The total thickness of the film, as well as the total number of layers, affect the capacitors characteristics such as the capacitance and dissipation factor. This is why the BFC238321393 has such a high self-resonant frequency.

When a voltage is applied to the BFC238321393, the plastic film is subject to an electrical field created between the two metallic plates. This field creates an attractive force and an electrostatic charge, resulting in a storage of energy in the form of an electric field. The energy stored in this electric field can then be released when needed, which is why film capacitors are used so often in power circuits.

Conclusion

In conclusion, the BFC238321393 film capacitor is a high-frequency type of film capacitor most commonly used in electrical power applications. The working principle of the BFC238321393 and all other plastic film capacitors is based on the temporary storage of electrical energy between its two plates. This ability to store electric energy makes them particularly useful in power circuits where a constant source of energy is required.

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