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The structure and characteristics of polypropylene film capacitors

Views:2     Author:Site Editor     Publish Time: 2021-11-10      Origin:Site

Polypropylene film capacitors belong to the category of organic film capacitors. Its dielectric is polypropylene film. There are two types of electrodes: metal sink type and metal film type. The coiled capacitor core is encapsulated with epoxy resin or packed into plastic and metal casings. In the package. Polypropylene capacitors made with metal film electrodes are called metallized polypropylene film capacitors.


Polypropylene film capacitors have the following characteristics:


The capacity range is wide, ranging from thousands of picofarads to tens of microfarads.

Good temperature resistance and high insulation resistance.

Metallized polypropylene film capacitors have good self-healing ability.

The loss tangent value is small, and the high frequency characteristics are good.

Small size and reliable work.


Polypropylene film capacitors can be used to replace paper and mica capacitors. They are mainly used in AC, laser, coupling, filtering and compensation circuits, and are widely used in household appliances.


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