8542.39.00.10/Si4463 Ultra-Low Power RF Transceiver/China

Si4463 Ultra-Low Power RF Transceiver from China

Silicon Labs Si4463 is a sub-GHz RF transceiver IC for narrowband FSK, GFSK, and 802.15.4g applications in smart metering and remote controls. Falls under HTS 8542.39.0010 due to its integrated RF transceiver architecture including fractional-N synthesizer and antenna diversity support. Optimized for battery life in remote sensor applications.

Duty Rate — China → United States

50%

Rate breakdown

9903.91.0550%Effective with respect to entries on or after January 1, 2025, articles the product of China, as provided for in subdivision (f) of U.S. note 31 to this subchapter
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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Import Tips

• Submit datasheets emphasizing transceiver functions (TX/RX chains) to distinguish from general RF ICs

• Prepare for potential 8543 scrutiny by documenting lack of discrete RF components

• Include MTBF data for industrial applications to support valuation claims

Si4463 Ultra-Low Power RF Transceiver from China — Import Duty Rate | HTS 8542.39.00.10