890334025020

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Film Capacitors

Film capacitors are non-polarized capacitors that make use of a dielectric material such as polyester or polypropylene to store energy. This type of capacitor is often referred to as a “film capacitor” or “polymer capacitor” and is commonly used for electrical/electronic applications.

Applications

Film capacitors are ideal for high frequency circuits, where capacitors using other materials may not be able to keep up. They are widely used in power supplies, audio and radio circuits. Film capacitors can provide greater reliability and performance in applications such as power converters, DC-DC converters, SMPS and motor controls. They are also used in solutions that require robustness in terms of temperature variations and/or high resistances. Other applications include line voltage compensation, RF/IF circuits, crossovers, snubbers and audio/video circuits. In addition to these, they are increasingly being used in automotive applications such as fuel systems, audio systems, electronic control units, navigation, and safety systems.

Working Principle

Film capacitors are constructed with a metalized plastic film as the dielectric medium. This metalized film is treated to form a thin oxide layer on one side of the film. The metalized film is then rolled tightly with aluminum foil, creating metal-oxide-film capacitors. When a voltage is applied to the metalized film, electrons are attracted to the oxide layer, resulting in a charge that is stored in the film. This charge remains there until the voltage is removed, at which point the electrons return to their original positions. The result is a very efficient capacitance that can store much more energy for its size than other capacitor types.

890334025020 Field Applications

The 890334025020 capacitor is an example of a film capacitor. It is a high-performance electrolytic capacitor specifically designed for use in high frequency, high power applications. The capacitor is designed to offer excellent ripple characteristics, low ESR and a high ripple current capacity to ensure it can handle large amounts of current. The 890334025020 capacitor is particularly well-suited for use in power supplies, switching applications, UPS systems, SMPS, motor control and frequency inverse converters.

Conclusion

In conclusion, film capacitors can provide excellent energy efficiency and performance, making them ideal for many electrical/electronic applications. The 890334025020 is a high-performance film capacitor that is ideal for high frequency, high power applications such as power supplies, UPS systems, SMPS, motor control and frequency inverse converters.

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