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

Real-Time Clock (RTC) DS3231 Module from Mexico

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 — Mexico → United States

10%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

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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