9030.90.68.00/Frequency Counter Timebase PCA/Japan

Frequency Counter Timebase PCA from Japan

OCXO-based printed circuit assembly providing stable 10 MHz reference for universal frequency counters measuring signal periods. Classified HTS 9030.90.68.00 as part for electrical quantity measuring instruments. Oven-controlled crystal ensures ppm accuracy.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Include aging rate and temperature stability specs (e.g

• ±0.05 ppm/°C)

• Verify GPS disciplining option doesn't trigger navigation equipment classification

• Ensure oven control circuitry is integral to counter function