Triple-protocol 2.4 GHz radio with 4 MB flash
The ESP32-C6FH4 is a 2.4 GHz transceiver IC from Espressif Systems that integrates a Bluetooth v5.0, Thread, and Zigbee radio on a single die. The 22 GPIO lines in a 32-pin QFN package demand careful fan-out planning — expect to use at least a four-layer PCB to route all signals cleanly.
21 dBm transmit power and industrial temperature range
The radio delivers 21 dBm output power at the antenna port, which provides roughly 3 dB more link margin than typical 18 dBm parts — useful when the module is placed inside a metal enclosure or behind a wall. Supply voltage is 3 V to 3.6 V; the receiving current draw is 71 mA to 82 mA, while transmitting current ranges from 82 mA to 354 mA depending on output power and protocol.
Active production status and package options
The supplier device package is 32-QFN (5x5 mm).