HTS 8532.29 – Other Fixed Capacitors (Mica, Glass, Supercapacitors)

HTS 8532.29 covers specialty fixed capacitors including silver mica, glass, and supercapacitors (electric double-layer capacitors). Maxwell (US, now Eaton) supercapacitors are domestic. Japanese mica capacitors face 15%. Chinese supercapacitors face 40%. High-Q mica caps are critical for RF and precision timing circuits.