The capacitor industry has been developed since the 1980 s. After more than 20 years of development, film capacitor technology has become increasingly mature.
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 structure.
Film capacitors are mainly used in electronics, home appliances, telecommunications, electric power, electrified railways, hybrid vehicles, wind power, solar power and many other industries.The steady development of these industries has driven the growth of the film capacitor market. With its good electrical performance and high reliability,film capacitors have become an indispensable electronic component to promote the above-mentioned industry. In the next few years, the market demand for film capacitors will further show a rapid growth trend.
Film capacitors are excellent capacitors because of their excellent properties. Its main characteristics are: no polarity, high insulation resistance, excellent frequency characteristics (wide frequency response), and low dielectric loss. Among all the plastic film capacitors, the characteristics of polypropylene (PP) capacitors and polystyrene (PS) capacitors are most prominent.
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