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Aluminum Electrolytic Capacitors are components widely used in electronic circuits for their high capacitance-to-volume ratio. They consist of an anode made from pure aluminum foil with an etched surface, electrolyte (which can be liquid or solid), and a cathode that commonly uses another layer of aluminum oxide. These capacitors are characterized by their cylindrical shape, polarity, and the method of electrolysis used to produce the aluminum oxide layer. They are applied across various industries for filtering, coupling, and decoupling applications, in power supply units, and audio applications. Depending on the specific design and materials, these capacitors can comply with industry standards such as IEC or EIA. The production route involves rolling, trimming, forming, and impregnation steps, often followed by assembly into a final product available to consumers or for industrial use.
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