Film capacitor is an electronic component used in many household appliances and has a wide range of applications! Film capacitors have gradually replaced aluminum electrolytic capacitors. Film capacitors can be divided into which two categories, and what is its role, together with the small to understand.
Film capacitors are metal foil as electrodes, and polyethylenes, polypropylene, polystyrene or polycarbonate and other plastic films, from the two ends of the overlap, wound into a cylindrical structure of the capacitor. The working principle of a film capacitor is the same as that of a general capacitor, which is to store electrical energy by storing charge on the electrodes, and is usually used together with an inductor to form an LC oscillation circuit.
Film capacitors can be divided into DC film capacitors and AC film capacitors: DC film capacitors are film capacitors working in circuits powered by DC power supply, which can be divided into four categories: general-purpose, power supply electromagnetic interference suppression, pulse and precision; AC film capacitors are film capacitors working in circuits powered by AC power supply, which can be divided into motor starting operation, power factor compensation, etc.
Film capacitors are widely used in integrated circuit boards, analog circuits and other circuits because of their high insulation impedance, wide frequency response and non-polarity. Especially in signal cross-connection, the performance of film capacitor is very good. Compared with other media, the dielectric loss of film capacitor is small and the frequency response is wide, which can ensure that the signal will not change during transmission. Nowadays, in order to meet people’s requirements for audio quality and improve the sound quality, the film capacitors used in audio equipment are more and more advanced, and the price is not the most important consideration, so the frequency and quantity of PP and PS capacitors used in audio equipment are getting higher and higher.
Power Bank Super Capacitor 2.7V 2F

Power Bank Super Capacitor 2.7V 2F

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