METALLIZED FILM CAPACITOR

PROBLEM TO BE SOLVED: To provide a metallized film capacitor in which wrinkling, flaw, and irregularity are prevented at a central position and periphery of a capacitor element which is flattened under hot press or the like, for higher reliability. SOLUTION: A first heat sealing film 2 wherein a layer 3 having a heat sealing characteristic at 105°C or lower is provided at least on one side is wound, two one-side-metallized polypropylene films 5 are laminated thereon or a laminated both-side-metallized polypropylene film and a polypropylene film are laminated together for winding. Further, a second heat sealing film 6 where a layer having the heat sealing characteristic at 105°C or lower is provided at least on one side of a plastic film is wound around the resulting laminate, and then flattened to provide a capacitor element 1. The heat sealing films 2 and 6 are laminate films of heat sealing polyolephine 3 and polypropylene 4. COPYRIGHT: (C)2010,JPO&INPIT