Si4463 Ultra-Low Power RF Transceiver from Japan

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 — Japan → United States

0%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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