Fast Charging Metallized Polypropylene Film Capacitor

Thin-film capacitors are usually made by using foil, such as aluminum, as electrodes and plastic film, and then winding them together. But there is another way to make thin-film capacitors, called metallized films, which are made by vacuum evaporating a thin layer of metal on a plastic film to form electrodes. This eliminates the thickness of the foil and reduces the volume per unit capacity of the capacitor, making it easier to make small, high-capacity capacitors. For example, the common MKP capacitor is metallized polypropylene film capacitor, and MKT is metallized polyethylene capacitor. Film capacitors are excellent capacitors because of their many excellent characteristics. Its main characteristics are as follows: non-polarity, high insulation impedance, excellent frequency characteristics (wide frequency response) , and small dielectric loss. Based on these advantages, thin film capacitors are widely used in analog circuits. Especially in the signal interconnect part, must use the good frequency characteristic, the medium loss extremely low capacitor, can ensure the signal in the transmission, will not have the too big distortion situation to occur.

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