SX1276MB1MAS - LoRa 433/868MHz Mbed Shield | Semtech
N.º de pieza: SX1276MB1MAS ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $30.83 | $30,83 |
| 10 | $29.6 | $296,00 |
| 100 | $28.5 | $2.850,00 |
| 500 | $27.4 | $13.700,00 |
| 1.000 | $26.3 | $26.300,00 |
SX1276MB1MAS Descripción general
A sub-GHz RF transceiver module is a radio device that transmits and receives data in the license-free frequency bands below 1 GHz. Within the wireless connectivity hierarchy, it belongs to the category of ISM-band transceivers, which sits under RF transceivers, RF and wireless components, and semiconductors. The SX1276 device on this shield implements LoRa (Long Range) spread-spectrum modulation, the leading LPWAN physical-layer technology.
Key features include the SX1276 LoRa modem with ultra-long-range spread-spectrum communication, dual-band 433 MHz and 868 MHz configuration, LoRa modulation with high interference immunity, and a standard Mbed-compatible shield format for rapid prototyping with Mbed-enabled microcontroller boards. The U.FL (MHF) connector allows connection of an external antenna matched to the selected band.
Technically, the SX1276 integrates the LoRa modem plus a high-performance FSK/OOK modem in a single device, covering 137 MHz to 1020 MHz, with low active and sleep current consumption suited to battery-powered long-range links. The shield exposes the transceiver through the Mbed shield connector (SPI interface), letting developers evaluate LoRa link budgets, range, and modulation settings before committing to a custom PCB.
Typical applications include LPWAN node prototyping, smart agriculture and smart city sensor links, industrial telemetry, and long-range IoT gateways in the 433 MHz and 868 MHz ISM bands.
Design consideration: always attach a correctly tuned 433 MHz or 868 MHz antenna before transmitting; operating the SX1276 into an unmatched or absent load can stress the PA output stage.
This page synthesizes distributor pricing, related-module alternatives, and practical design notes not found in the manufacturer product page. Pricing references are as of 2026-10-19.
Alternativas directas para SX1276MB1MAS — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
SX1276MB1LAS
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
SX1272MB2EAS
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
SX1278MB1LAS
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
SX1268
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
SX1276MB1MAS Especificaciones (publicadas por el fabricante)
| Product Type | LoRa Connect Mbed Shield (evaluation module) |
| Core Transceiver IC | Semtech SX1276 |
| Frequency Band | 433 MHz and 868 MHz ISM bands |
| SX1276 Tuning Range | 137 MHz to 1020 MHz |
| Modulation | LoRa spread spectrum, FSK, OOK, GFSK |
| Antenna Connector | U.FL (antenna not included) |
| Tipo de montaje | Through Hole (Mbed shield form factor) |
| Technology | LoRa LPWAN long-range spread spectrum |
| Interfaz | SPI via Mbed shield connector |
| Application | General ISM < 1 GHz transceiver evaluation |
| Compatible Ecosystem | ARM Mbed-enabled development boards |
| Encapsulado | Shield-format evaluation board |
Interfaces y conectores de SX1276MB1MAS
No hay disponible una lista de interfaces publicada por el fabricante para SX1276MB1MAS. Consulte la documentación del fabricante para obtener detalles sobre conectores y cabeceras.
Consulte la documentación del fabricante para ver el patillaje completo del conector de expansión y la numeración de pines del conector.
Aplicaciones típicas
SX1276MB1MAS es adecuado para 6 aplicacións: LPWAN IoT Node Prototyping, Smart Agriculture Sensor Networks, Smart City Metering and Infrastructure, Industrial Telemetry and SCADA Links, Long-Range IoT Gateways and Backhaul Evaluation, RF Education and Wireless Lab Courses.
LPWAN IoT Node Prototyping
The SX1276MB1MAS is the fastest way to validate a LoRa LPWAN node design. The SX1276 transceiver provides ultra-long-range spread-spectrum communication with high interference immunity, and the Mbed shield format plugs directly onto any Mbed-enabled MCU board, removing RF layout risk from the prototype phase. Developers typically achieve kilometre-scale range in the 433 MHz or 868 MHz ISM bands using LoRa spreading factors of 7 to 12, trading data rate for link budget. Because the production SX1276 silicon is on board, firmware and RF parameters validated here carry directly into a custom PCB. Battery-life modeling using the SX1276's low sleep and RX currents can begin immediately, and Semtech's Mbed LoRa libraries accelerate first-packet time to under an hour.
Recomendado
Smart Agriculture Sensor Networks
Farm and greenhouse telemetry nodes span large areas with sparse infrastructure, making sub-GHz LoRa ideal. The SX1276MB1MAS lets agricultural engineers prototype soil-moisture, weather-station, and irrigation-controller links in the 433 MHz band, which penetrates vegetation better than 868 MHz or 2.4 GHz alternatives. The SX1276's high interference immunity maintains link integrity near metal irrigation equipment, and its chirp spread spectrum operates below the noise floor for maximum range. A typical workflow pairs the shield with a low-power MCU, logs RX sensitivity versus spreading factor in the field, and uses the results to size solar panels and batteries for the production node. U.FL antenna connection supports gain antennas for long hub-to-field links.
Recomendado
Smart City Metering and Infrastructure
Water, gas, and electricity metering deployments in the 868 MHz band demand long battery life and robust urban penetration. The SX1276MB1MAS enables pre-deployment link testing across real city blocks before committing to hardware. The SX1276 LoRa modem's sensitivity allows multi-kilometre urban links at low transmit power, satisfying regional 868 MHz duty-cycle regulations while keeping cells large. Engineers use the shield to measure packet error rate versus distance, evaluate gateway placement, and tune spreading factor and coding rate per morphology class. Because LoRa has become the leading LPWAN choice for smart city LPWAN connectivity, ecosystem support, gateways, and network servers are mature, shortening time from prototype to pilot deployment.
Recomendado
Industrial Telemetry and SCADA Links
Factories and remote industrial sites need cable-free links for tank levels, pump status, and machine counters where wiring is costly. The SX1276MB1MAS supports evaluation of 433 MHz links, which handle obstructions and RF-noisy industrial environments well. The SX1276's FSK/OOK modem offers a low-latency fallback mode alongside LoRa, letting designers choose per-message between range and throughput. Typical bench tests measure link margin at 868 MHz with 10 mW output, confirming reliable operation through walls and machinery. Interference immunity of the LoRa modulation keeps telemetry stable near variable-frequency drives and welders. Once validated, the same SX1276 configuration migrates to a sealed production module with conformal-coated PCB.
Recomendado
Long-Range IoT Gateways and Backhaul Evaluation
Before building a LoRa gateway, engineers validate uplink performance with a node side of the SX1276MB1MAS. The shield characterizes receiver sensitivity, spreading-factor reach, and duty-cycle behavior of the 433/868 MHz bands that a production gateway must serve. LoRa's leading position in LPWAN means gateway silicon and network-server software are widely available, and range data collected with this shield directly informs antenna height and placement choices. The U.FL connector permits swept antenna testing with professional measurement gear, and dual-band configuration lets one bench setup cover both regional plans. Results feed directly into link-budget spreadsheets for star-of-stars network architecture planning across campus or district scale deployments.
Recomendado
RF Education and Wireless Lab Courses
Universities and training labs use the SX1276MB1MAS to teach spread-spectrum communication and LPWAN concepts hands-on. Students configure the SX1276's LoRa parameters - spreading factor, bandwidth, coding rate - over SPI and directly observe the range-versus-data-rate trade-off, something not visible with pre-integrated modules. The 433 MHz configuration is legal for experimentation in most regions without licenses under ISM rules, and the U.FL connector supports spectrum-analyzer observation of chirp signals. The Mbed ecosystem provides free online compiler and libraries, eliminating toolchain setup cost. Labs typically measure packet delivery ratio at fixed range across SF7 to SF12, concretely demonstrating the 20-plus dB link-budget spread available in LoRa modulation.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para SX1276MB1MAS — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | SX1276MB1LAS | SX1272MB2EAS | SX1278MB1LAS | SX1268 |
|---|---|---|---|---|---|
| Brand | Semtech | Semtech | Semtech | Semtech | Semtech |
| Core Transceiver | SX1276 | SX1276 | SX1272 | SX1278 | SX1268 |
| Primary Frequency Band | 433 MHz (LF) / 868 MHz (HF) | 868 MHz (HF) primary | 868/915 MHz class | 433 MHz focus | Sub-GHz (433/868 class) |
| Tuning Range | 137 MHz to 1020 MHz (SX1276) | 137 MHz to 1020 MHz | 860 MHz to 930 MHz (SX1272) | 137 MHz to 1020 MHz | 150 MHz to 960 MHz |
| Modulation | LoRa, FSK, GFSK, OOK | LoRa, FSK, GFSK, OOK | LoRa, FSK, GFSK, OOK | LoRa, FSK, GFSK, OOK | LoRa, FSK, GFSK |
| Relative Link Budget | High (SX1276 class) | High - identical silicon | Moderately lower | High (SX1278 class) | High with lower RX current |
| Host Interface | SPI via Mbed shield connector | SPI via Mbed shield connector | SPI via Mbed shield connector | SPI via Mbed shield connector | SPI (chip-level) |
Diferenciadores clave
- Dual-band LF/HF configuration on production silicon (frente a SX1272MB2EAS)
- Mbed ecosystem integration (frente a Third-party SX1276 breakouts)
- Trade-off: development tool pricing (frente a SX1276 chip)
Notas de diseño
Always connect a band-correct antenna (433 MHz for LF, 868 MHz for HF) via the U.FL connector before any transmit. The SX1276 PA is designed for a 50-ohm load; transmitting into an open or mismatched load raises VSWR and can degrade or destroy the output stage. Use a quality U.FL-to-SMA pigtail and verify antenna VSWR below 2:1 across your channel. Estimated: a 3 dB antenna mismatch alone can cost roughly half your radiated power and a proportional share of link budget.
The shield is an evaluation platform: keep RF wiring short when adapting to non-Mbed hosts via jumper wires, since long SPI lines above a few MHz SCLK pick up noise and cause CRC errors. Route MISO/MOSI/SCK/NSS away from switching regulators and add 100 nF decoupling at the host connector if the host board supply is shared. When migrating to production, copy the SX1276 reference-design matching network from the Semtech reference design rather than the shield schematic alone.
Respect regional duty-cycle limits: the European 868 MHz band enforces roughly 1 percent duty cycle per sub-band, which limits how aggressively you can test at high spreading factors. During bench range tests, sweep one parameter at a time (spreading factor, bandwidth, or coding rate) and log RSSI/SNR per packet; changing several at once makes link-budget attribution impossible. Also remember the antenna is not included - shipping delays on the correct 433 MHz antenna commonly stall first-light testing.
Información de cumplimiento
Compliance data not stated in the provided web results for this development-tool product; consult the Semtech product page or distributor compliance certificates.
