Thyratron Gas-Filled Switching Tube from Germany
A thyratron is a gas-filled electron tube used for high-power switching applications in industrial controls and pulsed power systems. It operates by ionizing gas between electrodes to conduct current, fitting under HTS 8540.89.0020 as a gas electron tube distinct from vacuum or photocathode types.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify tube specifications confirm gas-filled operation (e.g
• hydrogen or mercury vapor) to avoid misclassification as vacuum tubes
• Provide detailed technical datasheets showing electron tube function and gas composition for customs valuation
• Check for export controls on high-power thyratrons used in military applications via BIS regulations