Metallized Polyester Film Capacitor Vs Ceramic

Polyester pet film capacitors.

Metallized polyester film capacitor vs ceramic.

Although a very successful and useful form of film capacitor this type is no longer made because the manufacturer of the film. They are manufactured both as metallized wound and stacked versions as well as film foil types. They are generally less expensive than other capacitors and carry lower capacitances couple of µf max which makes them used often during low capacitance requirements in noise harmonics filtering and suppression applications. The core difference between these capacitor types is the material used as the dielectric and the proper dielectric must be chosen according to the application.

There are many types of film capacitors including polyester film metallized film polypropylene film ptfe film and polystyrene film. There are a few types of plastic film capacitors including mylar polycarbonate polyester and. Other dielectrics used in the construction of film capacitors include polycarbonate polystyrene polytetrafluoroethylene ptfe polyethylene naphthalate pen polyphenylene sulphide pps polyimide and paper. Made of ceramic material as the dielectric and metal as the electrodes ceramic capacitors come in a variety of shapes and sizes.

Read more about polyester capacitors polycarbonate pc. Ceramic disc capacitors have a low loss factor a reasonable level of stability and work well with high frequencies. This type of capacitor is very inexpensive to build and most look very much like figure 1. Polyester film capacitors are film capacitors using a dielectric made of the thermoplastic polar polymer material polyethylene terephthalate pet trade names hostaphan or mylar from the polyester family.