8532.30.00.10 - Mica, ceramic or glass dielectric

This HTS category, 8532.30.00.10, specifically covers variable or adjustable (pre-set) capacitors that utilize mica, ceramic, or glass as their dielectric material. These types of capacitors are characterized by their ability to have their capacitance value altered after manufacturing, typically through mechanical adjustment mechanisms. The use of mica, ceramic, or glass as the insulating layer between the conductive plates is the defining physical characteristic for this particular subheading.

This subheading is distinguished from its sibling, 8532.30.00.90, by the specific dielectric material employed. While both subheadings fall under "Variable or adjustable (pre-set) capacitors," 8532.30.00.10 is exclusively for those with mica, ceramic, or glass dielectrics. The "Other" category encompasses variable or adjustable capacitors made with any other dielectric materials not listed in this subheading.

As this is a leaf node in the HTS classification structure, there are no further subcategories. Therefore, classification into this subheading is definitive based on the type of capacitor (variable/adjustable) and its dielectric material (mica, ceramic, or glass). Examples of goods that would fall here include tuning capacitors used in radio receivers, trimmer capacitors for circuit adjustment, and variable capacitors found in power electronics where precise capacitance control is required.