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8540.89.00.20/Klystron Gas-Loaded Reflex Tube/Mexico

Klystron Gas-Loaded Reflex Tube from Mexico

Gas-loaded klystron tubes use controlled gas pressure for microwave power generation in scientific accelerators. The gas affects electron velocity, qualifying as vapor electron tubes under HTS 8540.89.0020.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

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

• Vacuum pumpdown specs must show residual operating gas pressure

• Particle accelerator end-use statement may trigger EAR licensing

• RF power output rating critical for classification

Klystron Gas-Loaded Reflex Tube from Mexico — Import Duty Rate | HTS 8540.89.00.20