Views: 5 Author: Site Editor Publish Time: 2020-01-20 Origin: Site
Polyester film capacitors are organic film capacitors. It is made by using metal foil or metal film as an electrode, using polyethylene terephthalate (abbreviated as polyester) film as a medium, wound and formed into a plastic case for sealing. Some capacitors use a colored epoxy resin to encapsulate the rolled core. Capacitors made with metal film electrodes are called metallized polyester film capacitors.
Polyester film capacitors have excellent mechanical properties, electrical properties, and optical properties, so they are widely used in applications such as photo negatives, magnetic tapes, video tapes, microfilms, packaging films, and capacitors. Such a capacitor uses a metalized polyester film, a non-inductive winding structure, and has a wide capacity range, small size, and light weight. Therefore, it is more convenient to install. Not only that, the polyester film capacitor has good self-healing property and long service life. At the same time, polyester film capacitors are also encapsulated with flame-retardant epoxy powder.
From a professional point of view, such a capacitor is the most suitable choice for some places where stability is strictly required due to its high stability. For example, it can be used as a coupling or bypass on electronic instruments or meters and radios. Polyester film capacitors have strong heat resistance and humidity resistance. At the same time, it has a certain pressure resistance.