Dingfeng Capacitor-- Two major types of film capacitors

Aug 25,2018

Film capacitors are an electronic component that is used in many home appliances and has a wide range of applications! The film capacitor is a capacitor in which a metal foil is used as an electrode and a plastic film such as polyethylene, polypropylene, polystyrene or polycarbonate is stacked from both ends and wound into a cylindrical shape.

Film capacitors can be divided into DC film capacitors and AC film capacitors. A DC film capacitor is a film capacitor that operates in a circuit that is powered by a DC power source. DC film capacitors can be divided into four categories: general-purpose, suppression power supply electromagnetic interference, pulse and precision. The AC film capacitor refers to a film capacitor that operates in a circuit that is powered by an AC power source. The function is divided into a motor to start operation, power factor compensation, and the like.

Thin film capacitors are widely used because of their high dielectric isolation, wide frequency response, and non-polarity, so thin film capacitors are often used in integrated circuit boards, analog circuits, and more. In particular, the performance of the signal crossover is very superior. Compared with other media, the film capacitor has a small dielectric loss and a wide frequency response, which ensures that the signal does not change during transmission.



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