



Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.
| Attributes | Value | |
|---|---|---|
| Category | RF and Wireless/RF Transceiver ICs | |
| Manufacturer | SKYWORKS/SILICON LABS | |
| Package | QFN-20-EP(4x4) | |
| Frequency Range | 240MHz~930MHz | |
| Operating Temperature | -40℃~+85℃ | |
| Type | transceiver | |
| Sensitivity | -121dBm | |
| Data Rate | 256Kbps | |
| Applications | ISM | |
| Output Power | 20dBm | |
| Voltage - Supply | 1.8V~3.6V | |
| Receive Current | 18.5mA | |
| Features | Supports software reset、Power-on reset function、Supports RSSI function、CRC check function、Input sync word detection function | |
| Current Of Transmitting | 85mA | |
| Interface | SPI |

* Images are for reference only
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.

* Images are for reference only
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.
Si4432-B1-FMR technical specifications, attributes, and parameters.
| Attributes | Value | |
|---|---|---|
| Category | RF and Wireless/RF Transceiver ICs | |
| Manufacturer | SKYWORKS/SILICON LABS | |
| Package | QFN-20-EP(4x4) | |
| Frequency Range | 240MHz~930MHz | |
| Operating Temperature | -40℃~+85℃ | |
| Type | transceiver | |
| Sensitivity | -121dBm | |
| Data Rate | 256Kbps | |
| Applications | ISM | |
| Output Power | 20dBm | |
| Voltage - Supply | 1.8V~3.6V | |
| Receive Current | 18.5mA | |
| Features | Supports software reset、Power-on reset function、Supports RSSI function、CRC check function、Input sync word detection function | |
| Current Of Transmitting | 85mA | |
| Interface | SPI |
From components to fully assembled PCBs. JLCPCB supports PCB assembly for the Si4432-B1-FMR. Sign up to receive and start your assembly today →
Step 1 - Pre-order the parts you need from JLCPCB.
Step 2 - Place a PCBA order to have those parts assembled onto your boards.
Step 3 - JLCPCB manufactures and assembles your boards in as fast as 3 days.

Si4432-B1-FMR datasheets or manufacturer documentation.
Datasheet: Si4432-B1-FMR Datasheet (PDF)
The Si4432-B1-FMR schematic symbol and PCB footprint are available in the EasyEDA PCB design tool.