BFC237516682

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Film Capacitors

BFC237516682 is a type of film capacitor often used as an energy storage component in applications such as AC or DC filters, motor drive circuits, power supplies, or snubber circuits. Made of polypropylene, they are designed to maintain high voltage levels for longer periods of time while delivering reliable performance. Using superior dielectric properties, these capacitors can withstand overvoltages or overcurrents and prevent breakdown or arcing.

Application Field

BFC237516682 film capacitors are ideal for applications where sustained or peak voltages exceed an electrolytic capacitors’ voltage range. It is also used in applications requiring high temperature, long life, and high current handling performances, such as switching power supplies, industrial control, PFC, motor control, UPS, and lighting ballasts. Other applications for film capacitors include deflection circuits in color monitors, oscillators, audio note circuits, control circuits, radio receiver and amplifier circuits.

Working Principle

The film capacitor works based on a dielectric principle. It consists of plastic film insulated together with an internal layer of electrolyte. When equal and opposite charges are applied to the capacitor’s two terminals, an electric field is established between them due to the dielectric layer. This electrical field stores energy in the form of a charge. As the applied voltage increases, so does the capacitance which is proportional to the electric field strength. When an alternating current is applied to the terminals, the film capacitor alternates between storing energy and releasing it.

The main advantage of the film capacitor is its wide operating temperature range and high dielectric strength, allowing for greater capacitance and voltage. In addition, film capacitors are impenetrable to moisture and air, making them some of the most reliable and durable capacitors on the market.

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