This AC capacitor uses thickened Metallized Polypropylene film as medium, coiled by high speed winding machine, and encapsulated with Aluminum body. It is treated by using refined castor oil as an impregnant in the high temperature and vacuum environment to make the capacitor more stable with long working life. Meanwhile based on the principle of safety and proof-explosion, this kind of capacitors has been used the second age mechanical explosion-prevent design to strengthen the reliability. It is widely used for air conditioners, refrigerators, generators and illuminating lamps. Performance Standard: GB3667.1-2005 Climate types: 25/70/21Insulation resistance: ≥ 3000Sμ F I. R Loss tangent: tgδ ≤ 0.002(50Hz~100Hz)