8540.89.00.20/Spark Gap Gas Switch Tube/Japan

Spark Gap Gas Switch Tube from Japan

Pressurized gas spark gap tubes provide fast high-voltage switching for pulse power systems and lightning protection. The controlled gas breakdown voltage enables precise switching, under HTS 8540.89.0020.

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

• Pressure vessel certification required for gas containment specs

• Breakdown voltage vs. pressure curve documentation essential

• Lightning protection end-use may require special certifications