SX1276MB1LAS
Overview
The SX1276MB1LAS is a Semtech sub-1 GHz transceiver module based on the SX1276 family, provided with an SMA through-hole connector (antenna not included). It targets ISM bands such as 433 MHz and 915 MHz and supports LoRa and legacy modulations (FSK/OOK). The module is sized for easy integration into IoT and LPWAN end nodes.
Why Choose This Part
The module form factor with a through-hole SMA connector simplifies antenna selection and mechanical mounting during prototyping. Based on Semtech's SX1276 transceiver, it supports LoRa plus legacy modulations, enabling flexible tradeoffs between range and data rate. Using a pre-matched module reduces RF design effort compared with integrating the bare IC directly.
Applications
Key Specifications
Getting Started
Consult Semtech datasheets and the module evaluation notes for pinout, SPI interface, and power requirements before connecting a host MCU. Typical host integration uses an MCU with an SPI peripheral (Arduino, STM32, ESP32, etc.) and existing libraries such as LMIC or RadioHead for LoRa stacks. Remember to provide a proper antenna matched to the SMA connector and verify operation against regional ISM regulations.
SX1276 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Frequency | Package | RF Family/Standard | Rx Current | Tx Current | Stock |
|---|---|---|---|---|---|---|
| SX1276MB1LAS (this part) | 433M | Module | 1GHz | 12mA | 120mA | 15 |
| SX1276IMLTRT | 137M | VQFN-28 | 802.15.4 | 10.8mA | 20mA | 38,867 |



