Shanghai Metal Corporation is a leading aluminium foil for electronic power capacitor manufacturer and supplier.
Aluminium foil for capacitor is widely used in capacitor industry. This application of aluminum foil employs not only its good electrical conductivity but also its oxide coating, specially formed (anodized) to make a superior dielectric layer between the two conductors. The dielectric constant of aluminum oxide is higher than that of waxed paper and many other dielectric materials, therefore it can store more electrons per unit of area.
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The oxide dielectric plate, which determines the size of a given capacitor, does not have to be as large as a paper dielectric "plate" for an equal capacity. Further, the oxide film, even a "thick" one, is thinner than the thinnest tissue paper. This thin film of aluminum oxide reduces the bulk of the capacitor; but more important, its thinness also increases the capacitance per unit of area. Another advantage of aluminum foil for electrolytic capacitors is that the foil is readily etched. This is important because etching greatly increases the true surface area which, when anodized, results in a far larger dielectric plate capacity.
1. Low Density
2. High Specific Surface Area
3. High conductivity
Technical Infomation of Capacitor Aluminum Foil:
Above is for normal technical standard, other special specifications can be negotiated according to customer’s requirement.
Package of Capacitor Aluminum Foil: