8532.30.00 - Variable or adjustable (pre-set) capacitors

This category, HTS Code 8532.30.00, encompasses capacitors whose capacitance can be altered after manufacturing. This includes both variable capacitors, which are typically adjusted through mechanical means, and adjustable (pre-set) capacitors, often referred to as trimmers, where the capacitance can be set to a specific value but is not intended for frequent adjustment during operation. These components are fundamental in electrical circuits for tuning, filtering, and oscillation.

It is important to distinguish these variable and adjustable capacitors from their siblings. HTS Code 8532.10.00.00 specifically covers fixed power capacitors designed for 50/60 Hz circuits with a significant reactive power handling capacity. The "Other fixed capacitors" category covers all other capacitors where the capacitance is not designed to be changed. Lastly, 8532.90.00.00 is reserved for parts of capacitors, not the functional capacitor units themselves.

Within this classification, further distinctions are made based on the dielectric material. Subcategories 8532.30.00.10 and 8532.30.00.90 separate these variable or adjustable capacitors based on whether they utilize mica, ceramic, or glass as their dielectric (8532.30.00.10), or employ other dielectric materials (8532.30.00.90). This granular level of classification aids in the precise identification and statistical tracking of these electronic components.