RAK3172-T-9-SM-I - LoRaWAN 9 LoRa Module | RAK3172 WisDuo LPWAN
MPN: RAK3172-T-9-SM-I ✓ NakahandaRAK3172-T-9-SM-I Ulas
A LoRa module (LoRaWAN transceiver) is a radio-frequency sub-system that implements the physical layer of the LoRaWAN low-power wide-area networking protocol defined by the LoRa Alliance. Within a wireless IoT node hierarchy, a LoRa module sits below the sensor/MCU logic, above the antenna matching network, and is governed by class-A/B/C MAC behavior for uplink/downlink scheduling on sub-GHz ISM frequencies in unlicensed bands.
Key features of the RAK3172-T-9-SM-I include ultra-low-power sleep current suitable for battery-operated nodes, integrated ARM Cortex-M4 application core inside the STM32WLE5, native LoRaWAN 1.0.3 Class A/B/C firmware compatibility, and an SPI/UART/I2C host interface for external sensor integration. The IPEX MHF4 antenna connector simplifies field-replacement antenna selection and supports external high-gain antennas.
The architecture combines STMicroelectronics' STM32WLE5 SoC with an on-board TCXO and RF matching network; this delivers improved frequency stability across temperature and reduced phase noise compared with XTAL-only designs. Internal DC-DC and LDO regulation allow the module to operate directly from 2 V to 3.6 V sources including single-cell Li-SoCl2 primary batteries.
Typical applications include long-range battery-powered IoT sensors, agricultural and environmental telemetry nodes, smart-metering AMR/AMI endpoints, asset tracking, and industrial SCADA wireless extensions. Engineers choose the RAK3172 family for design-reuse compatibility across global LoRaWAN regional bands (8/EU868, 9/US915, AS923) via the trailing band code in the ordering scheme.
When designing with this module, ensure the host PCB reserves a clearance keep-out beneath the IPEX connector, and verify host-MCU UART logic levels are 3.3 V tolerant. Sleep-mode firmware configuration (STM32WL STOP2/STANDBY) is required to meet the uA-class standby current claims needed for multi-year battery life.
This page synthesizes distributor stock, regional band ordering variants, and practical design notes that the manufacturer datasheet alone does not compile in a single view.
Mga alternatibo na pwedeng ilagay na RAK3172-T-9-SM-I — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok RAK3172-T-9-SM-I (parehas na form factor at footprint) — pagkakaiba sa Operating Temperature, Supply Voltage, Modulation, Package / Mounting, Host Interfaces.
RAK3172-9-SM-I
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →RAK3172-9-SM-NI
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →RAK3172-T-8-SM-I
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →RAK3172-TE-9-SM-I
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
RAK3272-SiP-9-SM-I
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
RAK3172-T-9-SM-I Mga Talaan (nai-publish ng manilya)
| Module Series | RAK3172 WisDuo LPWAN |
| Ordering Suffix | -T-9-SM-I (T grade, 9 band, surface-mount, with IPEX) |
| Chipset (SoC) | STMicroelectronics STM32WLE5CCU6 |
| LoRaWAN Specification | LoRaWAN 1.0.3, Class A / B / C |
| Modulation | LoRa, FSK |
| Frequency Band | 9 band - 902 MHz to 928 MHz (US915 / AU915 / AS923) |
| Volte ng Pagbibigay | 2 V to 3.6 V DC |
| Transmit Current | 87 mA (continuous) |
| Receive Current | 5.22 mA |
| Temperature na Operasyon | -40 C to +85 C |
| Range (line of sight) | Up to 15 km |
| Host Interfaces | UART, SPI, I2C |
| Antenna Connector | IPEX MHF4 (I-SM-I suffix) |
| Module Footprint | SMD 15.5 x 15 mm castellated pads |
| Uri ng Pagpapasok | Surface Mount, castellated edge pads |
| Tindminan RoHS | Compliant |
RAK3172-T-9-SM-I Interfaces at Connectors
Ipinapakita ng RAK3172-T-9-SM-I ang mga sumusunod na interface at connector ayon sa inilathala ng manufacturer: Input ng Kuryente. Ang pinout ng expansion header, pagnunumero ng pin ng connector, at mga electrical limit ay tinukoy sa dokumentasyon ng manufacturer.
| Input ng Kuryente | 2 V to 3.6 V DC |
Sumangguni sa dokumentasyon ng tagagawa para sa buong expansion header pinout at pin numbering ng konektor.
Mga Katangian ng Power at Thermal
| Input ng Kuryente | 2 V to 3.6 V DC |
| Temperaturang Pang-operasyon | -40 C to +85 C |
Power input at thermal parameters para sa RAK3172-T-9-SM-I gaya ng inilathala ng manufacturer.
Tipikal na mga Gamit
RAK3172-T-9-SM-I ay nararapat para sa 6 aplikasyons: Battery-Powered IoT Sensor Nodes, Smart Metering and AMR / AMI Endpoints, Agricultural and Environmental Telemetry, Asset Tracking and Logistics Telematics, Industrial Wireless SCADA Extensions, Smart City Lighting and Parking Sensors.
Battery-Powered IoT Sensor Nodes
The RAK3172-T-9-SM-I's 5.22 mA receive current and sub-uA standby figures make it a strong fit for battery-powered IoT sensor nodes on the US915/AU915/AS923 bands. The integrated STM32WLE5CCU6 lets a host MCU delegate RF timing and LoRaWAN MAC state machine to the module, while waking only briefly to push sensor samples via UART. In a remote agricultural soil-moisture monitor, the module transmits one SF11 packet every 15 minutes from a 2.4 Ah primary cell, achieving multi-year battery life. Designers should pair the module with a low-quiescent 3.3 V LDO and add a TVS diode on the antenna feed for surge protection in outdoor installations.
Inirekomenda
Smart Metering and AMR / AMI Endpoints
Utility metering infrastructure benefits from the RAK3172-T-9-SM-I's 15 km line-of-sight range and Class B/C LoRaWAN support for downlink firmware updates and on-demand reads. The 9-band variant directly maps to US915 FCC Part 15 limits at 902-928 MHz and AU915 compliance rules for meter deployment. Placed behind a meter pulse counter or behind an M-Bus / Modbus host, the module forwards encrypted payloads via AES-128 LoRaWAN session keys; integrated TCXO improves frequency stability versus ambient-temperature XTAL-only modules, reducing base-station gate-way dropouts in cold-weather deployments.
Inirekomenda
Agricultural and Environmental Telemetry
The RAK3172-T-9-SM-I is well matched to outdoor agricultural telemetry where sensors must operate for years on battery across -40 C to +85 C ambient swings. Its STM32WLE5 sleep current of a few micro-amps preserves battery budget during night-time standby, while the IPEX MHF4 connector permits a high-gain fiberglass antenna for line-of-sight reach across crop fields. Paired with soil-Moisture, temperature, and PAR sensors, a single RAK3172 node can cover 50-100 acres when placed on a 5 m pole. Note: use conformal coating on the module to survive humidity and condensation in tropical deployments.
Inirekomenda
Asset Tracking and Logistics Telematics
Mobile asset-tracking deployments on US915 / AU915 / AS923 networks favor the RAK3172-T-9-SM-I for its 5.22 mA receive and 87 mA continuous transmit profiles. When combined with a GPS receiver or BLE companion over UART, the module forwards geolocation packets over LoRaWAN at intervals defined by motion-state logic. Slower LoRa spreading factors (SF10-SF12) trade airtime for link margin in container-tracking scenarios where line-of-sight to the gateway is intermittent. Trade-off: high SF11/SF12 packets consume more airtime and battery, so designers should use SF7-SF9 for fixed-route fleet tracking and reserve SF12 only for sparse low-rate updates.
Inirekomenda
Industrial Wireless SCADA Extensions
For Industrial Wireless SCADA extensions on unlicensed sub-GHz ISM bands, the RAK3172-T-9-SM-I offers transparent UART bridging to LoRaWAN, allowing legacy Modbus RTU devices to be deployed where running cable is impractical. Class C support provides always-on downlink for remote PLC command execution, while the AES-128 LoRaWAN session layer provides security equivalent to many SCADA VPNs. The module's -40 C to +85 C operating range and IPEX connector support external high-gain antennas on factory rooftops, extending the gateway's effective coverage. This is comparable in function to industrial cellular modems but at a fraction of the recurring cost.
Inirekomenda
Smart City Lighting and Parking Sensors
Municipal smart-city pilots deploy RAK3172-T-9-SM-I nodes for street-light monitoring and parking-occupancy sensing on the 902-928 MHz band. The module's 87 mA peak current and sub-1 mA standby enable solar-powered pole-top installations without trenching power wiring. With SF9 spreading and an SF rate-limited cadence, a single LoRaWAN frame per 5 minutes sustains reliable uplink even through dense urban canyon attenuation. Using the IPEX antenna variant with a low-profile fiberglass whip preserves visual aesthetics on heritage street furniture while delivering 5-6 dBi gain.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for RAK3172-T-9-SM-I — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | RAK3172-9-SM-I | RAK3172-9-SM-NI | RAK3172-T-8-SM-I | RAK3172-TE-9-SM-I | RAK3272-SiP-9-SM-I |
|---|---|---|---|---|---|---|
| Package | 15.5 x 15 mm castellated SMD (RAK3172) | 15.5 x 15 mm castellated SMD - same | 15.5 x 15 mm castellated SMD - same | 15.5 x 15 mm castellated SMD - same | 15.5 x 15 mm castellated SMD - same | WisBlock Core SiP - different footprint |
| Brand | RAKwireless | RAKwireless (same-brand) | RAKwireless (same-brand) | RAKwireless (same-brand) | RAKwireless (same-brand) | RAKwireless (same-brand) |
| Frequency Band | 902-928 MHz (US915/AU915/AS923) | 902-928 MHz (9 band) | 902-928 MHz (9 band) | 863-870 MHz (8 band, EU868) | 902-928 MHz (9 band) | 902-928 MHz (9 band) |
| Antenna Connector | IPEX MHF4 (I suffix) | IPEX MHF4 | RF solder pad (no IPEX) | IPEX MHF4 | IPEX MHF4 | IPEX MHF4 |
| Supply Voltage | 2.0 - 3.6 V | 2.0 - 3.6 V (same) | 2.0 - 3.6 V (same) | 2.0 - 3.6 V (same) | 2.0 - 3.6 V (same) | 2.0 - 3.6 V (same) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C (same) | -40 C to +85 C (same) | -40 C to +85 C (same) | -40 C to +85 C (extended grade) | -40 C to +85 C (same) |
| Chipset | STM32WLE5CCU6 | STM32WLE5CCU6 (same) | STM32WLE5CCU6 (same) | STM32WLE5CCU6 (same) | STM32WLE5CCU6 (same) | STM32WLE5 system-in-package |
Pangunahing mga Pagkakaiba
- STM32WLE5 integrated SoC reduces BOM (kumpara saRAK3272-SiP-9-SM-I)
- Family-wide pin compatibility across regional bands (kumpara saRAK3172-T-8-SM-I)
- Integrated TCXO for frequency stability (kumpara saXTAL-only LoRa modules)
Talaan ng Disenyo
Reserve a copper keep-out zone beneath the IPEX MHF4 connector footprint to avoid signal-plane coupling that detunes antenna matching. Place the IPEX connector at the module edge of the host PCB so the antenna can protrude off-board without crossing signal traces. Maintain 50 ohm controlled-impedance routing from the IPEX feed to the on-board RF pad stub if the NI variant is used.
Power the module from a low-quiescent LDO (under 5 uA Iq is ideal) when battery life matters. Decouple the host 3.3 V supply with 10 uF bulk plus 100 nF ceramic directly at the module VIN pads. Voltage transients below 2.0 V during TX bursts will cause the integrated DC-DC to derate RF output power and reduce link margin.
Do not exceed 3.6 V on VIN. Connecting the IPEX antenna port directly to a DC-shorted test fixture will load the matching network and may damage the RF output stage. Always run antenna selection from the -SM-I (IPEX) variant vs -SM-NI (pad) variant at the BOM setup stage - mid-prototype swaps require PCB respins because the host footprint differs at pin 1's antenna signal path.
Impormasyon ng Pagsunod sa Kautusan
RoHS compliance confirmed by RAKwireless product page and JLCPCB listing. REACH, halogen-free and conflict-minerals status were not explicitly disclosed in verified web data and are listed as 'unknown'. AEC-Q100 not applicable - this is an RF transceiver module, not an automotive-grade IC.
