Talking about small high-voltage film capacitors

There are many types of film capacitors, mainly polyethylene capacitors, polypropylene capacitors, polystyrene capacitors, and polycarbonate capacitors. What about small high-voltage film capacitors?

A small structure film capacitor relates to a capacitor structure, including two leads, a capacitor core and a body. The capacitor core in the body uses a metallized film layer as a medium and an aluminum foil as an electrode. The end face is connected to the aluminum foil by a gold spraying layer. The lead wire and the end face are welded and led out. The body is wound by the medium and the electrode and powdered with epoxy.封 组合。 Seal composition.

It is characterized in that the nominal pitch of the leads is not more than 5mm, the capacitor core is wound by a metallized film of a series structure, the metallized film is composed of a thin film and a metal plating layer attached to the thin film, and the metal One or both sides or the middle of the film is provided with a marginal structure.

The small structure film capacitor solves the problems of low reliability, low life, and inability to meet the requirements of ultra-small size for low-power energy-saving lamps. It has a high rated operating voltage, less waste, saves resources, is conducive to improving the environment, and has strong moisture resistance. And resistance to temperature shock, and can work normally under the working environment of 85 ℃ -110 ℃ for a long time.

Excellent charge and discharge resistance, especially suitable for start-up and freewheeling capacitors on energy-saving lamps with high requirements. It is also suitable for LC, RC oscillation circuits, differential circuits, switching acceleration circuits and transistor overvoltage protection circuits. This kind of capacitor has a long life, high reliability, and environmental protection, and can be applied in the occasions where the high voltage, large current, and small size are required.