Metallized Polyester Film Capacitor Vs Ceramic

Ceramic disc capacitors have a low loss factor a reasonable level of stability and work well with high frequencies.

Metallized polyester film capacitor vs ceramic.

This type of capacitor is very inexpensive to build and most look very much like figure 1. There are many types of film capacitors including polyester film metallized film polypropylene film ptfe film and polystyrene film. Metalized polyester capacitors mkt data sheets parameter search key technical data general information. Polyester film capacitor one downside of this type of film capacitor is that it can introduce noise when used in applications where there is vibration.

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. They are manufactured both as metallized wound and stacked versions as well as film foil types. The most common dielectric materials used in the construction of plastic film capacitors are polypropylene and polyester. 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.

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. There are a few types of plastic film capacitors including mylar polycarbonate polyester and. Read more about polyester capacitors polycarbonate pc. Other dielectrics used in the construction of film capacitors include polycarbonate polystyrene polytetrafluoroethylene ptfe polyethylene naphthalate pen polyphenylene sulphide pps polyimide and paper.