Polyester capacitor is not a metal film capacitor

The longer the contact with electronic components, the more questions will arise. Some people will ask if the polyester capacitor is a metal film capacitor. Especially when the novice does not fully understand the capacitor knowledge, it is easy to be confused.

Polyester capacitors, commonly known as CL11, are generally dark green, and are widely used in DC and pulse circuits in the fields of broadcast TV products, communication equipment, and display energy-saving lamps. So is the polyester capacitor a metal film capacitor? The answer is: polyester capacitors are not metal film capacitors, but metal foil capacitors.

Metal film capacitors and metal foil capacitors are all film capacitors. The film capacitor refers to a capacitor obtained by winding or laminating an organic film as a dielectric and using a metal foil (or a metal layer formed by vapor deposition on a film) as an electrode. It has the characteristics of no polarity, high insulation resistance, small dielectric loss and excellent frequency characteristics.

A polyester capacitor is a film capacitor obtained by winding or laminating a metal foil as an electrode, and is a metal foil type film capacitor. The metallized film capacitor is plated with a metal as an electrode on the surface of the film as a dielectric, which is simply referred to as a metal film capacitor.

After the novice has read the above explanations, is the idea clearer, the use of capacitors has become more and more extensive, and we need to understand the relevant knowledge points to ensure that we reduce the trouble in use. If you have technical problems, please contact us and we will try our best to solve the problem for you.