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Film Capacitors

Film capacitors, also called plastic film capacitors, foil capacitors, or plastic foil capacitors, are electrical capacitors with an insulating plastic film as the dielectric, sometimes combined with paper as the carrier of the electrodes. The dielectrics used are polypropylene, polyester, polystyrene, polyethylene naphthalate (PEN) and polyphenylene sulfide (PPS). Film capacitors, especially plastic film capacitors, are widely used in electronic equipment as AC and pulse filtering and coupling roles, especially in power electronic systems.

BFC246951822 is a high-quality metalized polypropylene film capacitor. It has an excellent self-heat dissipation property, which makes it suitable for use in automobile electronic systems and high current circuits. It is also widely used in precision circuits and electrical equipment. The features of this film capacitor include high insulation resistance, high temperature resistance up to 125℃, adequate mechanical strength, and EYC compliance.

Application field:

BFC246951822 is mainly used in power electronics, medical equipment, solar photovoltaic and wind power systems, audiovisual products, precision instruments, industrial controls, UPS systems, IT devices, and automotive electronics.

Working principle:

BFC246951822 works like other film capacitors, with two electrodes separated by a thin dielectric plastic film. When a voltage is applied at the electrodes, a charge is created in the dielectric which in turn creates an electric field. This electric field stores energy and results in a capacitance between the two electrodes. When the voltage waveform changes, the electric field also changes accordingly. This change in electric field stores and releases energy, thus performing as a filter to smooth out the waveform.

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