Metallized polypropylene film capacitor CBB21/CBB22 (MPP)

MEtallized  Polypropylene  Film  Capacitor

The metallized thin film capacitor is characterized by anti-seepage. In this process, the metallized thin film is placed in a vacuum chamber. Under high vacuum conditions, an aluminum wire is placed in a furnace evaporator and heated to a temperature of 1700 ℃ for evaporation. As a result, a thin layer of aluminum is deposited on the film, usually 400-50nm. The vacuum metallized film not only has the same mechanical properties as the substrate, but also has the same anti-seepage performance as aluminum foil. And the film has good softness, avoiding the problem of bending and cracking of aluminum foil. In fact, when the bent metal film is compared to the laminated film, the anti-seepage performance of the metallized film is much higher than that of the latter.