</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Channeltron Electron Multiplier Tube from Japan

Burle Channeltron C-30810 continuous channel electron multiplier tube for mass spectrometry, providing gain >10^8 with 100ps FWHM timing resolution. Features curved channel geometry for high count rates up to 10^7 cps. Classified under HTS 8540.89.00.60 as light-sensing tube technology adapted for charged particle detection.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Document particle detection application vs pure light-sensing to justify tube classification

High voltage operation specs (>2kV) distinguish from semiconductor multipliers

Cleanroom packaging certification required for contamination-sensitive applications