Thyratron Gas-Filled Switching Tube
A thyratron is a gas-filled tube containing low-pressure inert gas, used for high-power switching and rectification in industrial applications. It operates through controlled gas ionization and falls under this tariff item as an 'other' gas-filled tube.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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Import Tips & Compliance
• Classify the thyratron as a gas-filled tube, not as a semiconductor switch
• Provide technical specs on the gas fill and switching function
• Verify if the tube is subject to any high-voltage safety standards
Related Products under Tariff item 8540.89.00
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A cold cathode ion gauge tube is a vacuum measurement device that ionizes residual gas molecules through a high-voltage discharge between electrodes, generating a current proportional to pressure. It falls under this tariff item as an 'other' cold cathode tube used for ultra-high vacuum measurement.
Deuterium Arc Lamp Electrode Tube
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Hydrogen Thyratron Pulse Modulator Tube
A hydrogen thyratron is a gas-filled tube containing hydrogen gas at low pressure, designed for high-speed, repetitive high-voltage switching in pulse power applications like radar modulators. It is classified here as an 'other' gas-filled tube optimized for fast recovery.
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