2C51 Beam Power Triode Tube from Japan
The 2C51 is a subminiature beam power triode vacuum tube for compact audio output stages in portable equipment. Falls under HTS 8540.89.00.40 as a thermionic triode with beam forming electrodes. Used in military communications and vintage hearing aids.
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%
Import Tips
• Document subminiature 7-pin construction and rigid construction for rugged applications
• Include maximum plate voltage ratings (250V) and output power specs (150mW)
• Declare MIL-SPEC compliance for military surplus tube imports