Shenmao Capacitors specialized in aluminum electrolytic capacitors from 1970

The characteristics and applications of metal film capacitors | Focus on high-end brand capacitor manufacturers

by:Shenmao     2021-03-24
Metal film capacitors are usually simply represented by the letter C. First of all, the metal film capacitor, as the name suggests, is a ‘container for holding electricity’, a device that holds electrical charges. Metal film capacitors are one of the most widely used electronic components in electronic equipment. They are widely used in circuits such as direct-through AC, coupling, bypass, filtering, tuning loops, energy conversion, and control. Secondly, a capacitor, any two conductors that are insulated from each other and very close to each other constitute a capacitor. Metal film capacitors are suitable for high-frequency circuit metal film capacitors. In terms of structure, they can be divided into foil type and silver type. The silver type electrode is formed by directly plating the silver layer on the metal film by vacuum evaporation or sintering method. Because the air gap is eliminated, the temperature coefficient is greatly reduced, and the stability of the metal film capacitor is higher than that of the foil type. The specific frequency characteristics are good, and the Q value is high. It is widely used in high-frequency electrical appliances and can be used as a standard capacitor metal film capacitor. The metal film capacitor is formed by spraying a special mixture with a concentration suitable for spraying into a thin film, and the medium is then sintered with a silver layer electrode to form a 'monolithic' structure. It has the characteristics of small size, high sensitivity, low power consumption, good reliability, low cost and good frequency characteristics. Therefore, it is widely used in alarm and sounding applications of various electrical products. The most common sounding devices are music greeting cards, electronic watches, pocket calculators, electronic doorbells, and electronic toys.
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