Silicon Labs SI4721-B20-GM

SI4721-B20-GM Overview
Surface Mount is a type of electronic component packaging that allows for the direct mounting of the component onto a printed circuit board (PCB). In this case, the component in question has a Part Status of Active, meaning it is currently in production and available for purchase. The Moisture Sensitivity Level (MSL) for this component is 3, indicating that it can withstand exposure to moisture for up to 168 hours without being damaged. This component has 20 terminations, which are points where it connects to the PCB. Its frequency range is 76MHz to 108MHz, and it has serial interfaces for I2S and SPI communication protocols. The current required for transmitting data is between 18.3mA and 18.8mA. This component also has 3 GPIO (General Purpose Input/Output) pins for additional functionality. Its maximum seated height is 0.6mm, making it a compact choice for smaller electronic devices. However, it is not radiation hardened, meaning it is not designed to withstand exposure to high levels of radiation.

SI4721-B20-GM Features
20-UFQFN Exposed Pad package
Surface Mount for mounting
TxRx Only
Tray is used
20 pins


SI4721-B20-GM Applications
There are a lot of Silicon Labs
SI4721-B20-GM RF Transceiver ICs applications.


Remote Control
Internet Radio
Industrial Controls
Chemical Sensors
Security Systems
M2M Communication
Remote Device Management
Low-power IoT applications
LoT applications
Power Amplifier (PA)