8540.89.00.80/Klystron Power Vacuum Tube/Japan

Klystron Power Vacuum Tube from Japan

Multi-cavity vacuum tube that amplifies RF signals through velocity modulation, used in particle accelerators and transmitters. Classified HTS 8540.89.00.80 as other vacuum tubes for high-power applications.

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%

Calculate with your customs value Verify classification with AI

Import Tips

• Specify cavity count, frequency, and power rating to confirm vacuum tube status

• Radiation safety certification required for accelerator applications