8543.90.88/Real-Time Clock (RTC) DS3231 Module/Japan

Real-Time Clock (RTC) DS3231 Module from Japan

Precision timekeeping module with DS3231 IC, EEPROM, crystal oscillator, and I2C interface for accurate date/time tracking. HTS 8543.90.88 classification as other electrical machine parts for timing functions, independent of watches. Includes backup battery holder for power loss protection.

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 temperature-compensated crystal oscillator accuracy

• Include battery type and lifespan in specifications

• Test I2C address conflicts before bulk import