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8540.89.00.80/Traveling Wave Tube Amplifier TWT/Japan

Traveling Wave Tube Amplifier TWT from Japan

High-power vacuum tube amplifier using a helix slow-wave structure for microwave amplification in satellite communications. HTS 8540.89.00.80 covers this as other vapor or vacuum filled tubes for RF 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%
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Import Tips

• ,Specify helix construction and vacuum envelope in technical literature for proper 8540 classification

Traveling Wave Tube Amplifier TWT from Japan — Import Duty Rate | HTS 8540.89.00.80