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Channeltron Electron Multiplier Tube from Mexico

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 — Mexico → United States

13.7%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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