Surface Mount is used for RF Transceiver' mounting the RF Transceiver.This RF Transceiver module utilizes the Tape & Reel (TR) package for optimized performance.
ETRX357HR-LRS-C31 Features
Surface Mount Tape & Reel (TR) package
ETRX357HR-LRS-C31 Applications
There are a lot of Silicon Labs ETRX357HR-LRS-C31 RF Transceiver Modules applications.