Shenmao Capacitors specialized in aluminum electrolytic capacitors from 1970

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

by:Shenmao     2021-03-25
Regarding metal film capacitors, we have mentioned some related items such as its structure and loss. We also talked about two kinds of dielectrics commonly used in metal film capacitors. Polypropylene film is a non-polar medium and polyester film is a polar medium. The general parameters of metal film capacitors will have such parameters as capacitance. The so-called capacitance refers to the value that represents the capacity of the capacitor to store charge. The capacitance is equal to the ratio of the charge stored on the capacitor to the voltage applied across the capacitor. The common unit of capacitance is uF. The frequency characteristics of the capacitance of metal film capacitors have different performances according to polarity and non-polarity. Metal film capacitors that use polar dielectrics decrease in capacitance as the frequency increases. Metal film capacitors using non-polar dielectrics have almost no changes in capacitance as the frequency changes, and the correlation is not large. For more details, please call 0755-85274135
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