BFC238314913

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Film Capacitors

BFC238314913 is a type of film capacitors. Film capacitors are non-electrolytic capacitors with a dielectric film of PET, paper, or film, among others, interposed between plates made up of metalized polyester, aluminum, or other materials. The capacitors consist of a dielectric film in which two strips of thin metalized material are metallically interlinked forming an inter-electrode assembly with high capacitance.

Application Field

Film capacitors have become very popular in numerous applications, such as signal and power processing, digital and telecommunication systems, no-load switches, filters, short-term energy storage, and power conditioning. BFC238314913 film capacitors are often used in applications requiring high capacitance and high ripple current. The capacitors are particularly suitable for energy storage, DC link or DC filtering, and result in a minimal loss of energy due to low ESR.

Working Principle

BFC238314913 capacitors use an insulating film dielectric called polypropylene (PP). It is made of a thin film of polyester, which is then coated with metal oxide and sandwiched between two electrodes. These films provide a uniform dielectric constant and low losses, making them suitable for a wide variety of applications. The film dielectric is rolled-up to form windings and pressed into stacks of dielectric plates. These plates are then strung into bars with metalized finishes and clamped into capacitance designs.

The capacitance of a film capacitor depends on the surface area of the dielectric film, thickness and permittivity. The capacitance is determined by the formula C=ε x A/d, where C stands for capacitance, ε stands for permittivity, A stands for area and d stands for the distance between the two plates. As the dielectric film thickness is increased, the capacitance value decreases and vice versa. Also, the higher the permittivity, the higher the capacitance.

BFC238314913 capacitors offer low ESR, high capacitance, and excellent frequency response. The capacitors are built with a self-healing technology that automatically eliminates failed capacitance elements and ensures long life. The capacitors feature a reverse-discharge protection, which protects the device from under-voltage. BFC238314913 capacitors are manufactured using advanced automated production technology and allow for a wide frequency range and a high pulse and ripple current tolerance.

Conclusion

BFC238314913 capacitors are versatile, reliable film capacitors designed for energy storage and DC filtering applications. The capacitors have excellent frequency response and low ESR, which makes them suitable for applications requiring high capacitance and high ripple current. BFC238314913 film capacitors offer a reverse-discharge protection against under-voltage and a self-healing technology to ensure long-life performance. The capacitance of the capacitor is determined by the surface area, thickness, and permittivity of the dielectric film and is calculated using the capacitance formula.

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