7607.19.10.00 - Etched capacitor foil

This HTS classification covers etched aluminum foil specifically designed for use in capacitors. The etching process is crucial here, as it creates a micro-etched surface to increase capacitance. This foil, not exceeding 0.2 mm in thickness, is unbacked and falls under the broader category of aluminum foil.

Distinguishing this subcategory, "Etched capacitor foil," from other "Other" categories at the same level is based on its functional purpose and specialized surface treatment. While other "Other" categories might include plain, unbacked aluminum foil for general purposes, this specific classification identifies foil that has undergone an etching treatment to enhance its electrical properties for capacitor manufacturing.

As this is a leaf node, there are no further subcategories. Classification at this level requires confirmation that the aluminum foil in question has indeed been etched and is intended for capacitor production. This ensures accurate tariff application for this specialized product within the aluminum foil chapter.