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Film Capacitors

A film capacitor, also known as a plastic film capacitor, is a capacitor that uses a plastic film as a dielectric. It is used in electronic circuits for blocking, degeneration, transient suppression, coupling, timing, snubbing, dynamic braking, phase shift networks, decoupling, and precision timing applications. The BFC237135683 is a KEMET film capacitor designed to operate in demanding low voltage, high-temperature, and high-performance applications.

Working Principle

Film capacitors use dielectric films which are made from materials such as polypropylene, polycarbonate, polyester, and polyethylene terephthalate to store an electric charge. When a voltage is applied to the capacitor, a dielectric layer forms between the two electrodes. This layer acts as an insulating barrier that prevents the charge from leaking out of the capacitor. The dielectric film also increases the capacitance of the capacitor, allowing it to store more charge.

Applications

The BFC237135683 is a versatile and durable capacitor that can be used for a variety of applications, including high-performance power supplies, power grids, motor drives, inverters, and dc-dc converters. Its operating temperature range is -40°C to +125°C and its operating voltage range is 3.3 to 8.2V. It has a particularly low equivalent series resistance (ESR), making it suitable for use in high-frequency applications.

The capacitor also features a low dielectric absorption and loss factors, making it ideal for power-conversion applications where power losses need to be minimized. Additionally, its capacitance can be trimmed for precise tuning of high-frequency gain or phase response of filters and tuned circuits.

Conclusion

The BFC237135683 is a high-performance film capacitor that is well-suited for a variety of applications including high-frequency power conversion applications. Its operating temperature and voltage capabilities along with its low ESR make it an ideal choice for demanding applications. Additionally, its low dielectric absorption and loss factors provide improved power delivery and longevity. These capabilities, combined with its small size, make the BFC237135683 an excellent choice for a wide range of applications.

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