A simple classification of metal membrane capacitors and other capacitors (II)

Type 1: classification according to the structure of capacitors

1. Fixed capacitors: capacitors that cannot be changed by capacitance.

2. Variable capacitors and trimming capacitors: capacitors that can be adjusted artificially within a certain range and in a smaller range. It can also be divided into filter capacitors, coupling capacitors and bypass capacitors according to their usage. In short, in general electronic circuits, capacitors basically have three categories: Fixed capacitors, trimming capacitors and electrolytic capacitors.

The metal film capacitance is the direct evaporation of a layer of metal thin layer on the plastic film as the electrode, which is thinner than the usual metal foil, that is, the metallized film capacitor. Metal film capacitors are generally used in low-frequency circuits, while CBB capacitors in metal film capacitors will be used in many circuits, and their performance will be better.