Shenmao Capacitors specialized in aluminum electrolytic capacitors from 1970

What are the main metal film capacitors? |Focus on mid-to-high-end brand capacitor manufacturers

by:Shenmao     2021-04-06
Metal film capacitors use metal foil as electrodes, and combine them with plastic films such as MylarFilm, PolypropyleneFile, PolystyreneFilm, or PolycarbonateFilm. A capacitor with a cylindrical structure. According to the type of plastic film, they are called polyethylene capacitors (also known as Mylar capacitors), polypropylene capacitors (also known as PP capacitors), polystyrene capacitors (also known as PS capacitors) and polycarbonate capacitors. The usual method of making metal film capacitors is to use aluminum and other metal foils as electrodes and plastic films to be overlapped and wound together. However, there is another manufacturing method for metal film capacitors, called Metallized Film. The method is to deposit a thin layer of metal on a plastic film by vacuum evaporation to serve as an electrode. In this way, the thickness of the electrode foil can be omitted, and the volume of the capacitor per unit capacity can be reduced. Therefore, the metal film capacitor can be easily made into a small and large-capacity capacitor. For example, the common MKP capacitor is the code name of Metalized Polypropylene Film Capacitor, while MKT is the code name of Metalized Polypropylene Film Capacitor. Metallized polyethylene film capacitors: Metallized polyethylene film capacitors have good self-healing properties, small size, large capacity, high voltage resistance, and good reliability. They are suitable for electronic instruments, ordinary power supplies, igniters, energy-saving lamps, Various DC pulsating circuits such as chargers and communication equipment. Metallized polypropylene film capacitors: Metallized polypropylene film capacitors are also known as CBB capacitors. This metal film capacitor has the characteristics of good self-healing, small size, high withstand voltage, large capacity, low loss, good high-frequency characteristics, and high reliability. It is suitable for automobile and motorcycle igniters, controllers, and electronic appliances. AC and DC pulsating circuits such as meter, electronic instrument, electronic ballast, medium and high-end lamps and ozone generator. Metallized polypropylene film capacitors can replace most polyphenyl or mica capacitors and are used in demanding circuits.
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