Etched Anode Aluminum Foil for Electrolytic Capacitors from Japan
This is high-purity etched aluminum foil used as the anode in aluminum electrolytic capacitors, featuring microscopic pits to maximize surface area for enhanced capacitance. It falls under HTS 7607.19.10.00 as unbacked aluminum foil thinner than 0.2 mm specifically etched for capacitor applications. The etching process increases its effective surface area by up to 100 times for use in electronics like power supplies.
Duty Rate — Japan → United States
15.3%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Verify purity exceeds 99% aluminum to confirm non-alloy status per chapter notes; provide etching process certification and capacitance specs for customs
• Avoid misclassification as generic foil by including end-use documentation for capacitors