This capacitor use thickened Metallized Polypropylene film as dielectric, coiled by high speed winding machine, and encapsulated with Aluminum body, It is treated by using refined castor oil as impregnant in the high tem-perature and vacuum environment to make the capacitor more stable with long working life. Meanwhile basedl on the principle of safety and proof-explosion, this kind of capacitor has been used the second generationl mechanical explosion proof design to strengthen the reliability.

This capacitor widely used for air-conditioners refrigerators, generators, illuminating lamps etc.