TD1207 - Sigfox RF Transceiver Module, Sub-GHz 868/902 MHz
MPN: TD1207 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $13.1 | $131.00 |
| 100 | $11.25 | $1,125.00 |
| 500 | $9.8 | $4,900.00 |
| 1,000 | $8.95 | $8,950.00 |
TD1207 Overview
A Sigfox module is a pre-certified wireless module that bundles a radio transceiver, microcontroller, RF matching network, and protocol firmware into a single tested assembly. Sigfox modules belong to the broader category of Low-Power Wide-Area Network (LPWAN) modules, sitting beneath the LPWAN hierarchy alongside LoRa and NB-IoT; they are designed for ultra-narrowband, sub-1 GHz transmission of small messages at very low average power, enabling battery-powered devices that operate for years on a single cell.
Key features of the TD1207 include an integrated ARM Cortex-M3 core, ultra-low active and standby current consumption, automatic packet handling with Sigfox protocol stack pre-loaded, and an AT-command serial interface for external host control. The device operates from a single 3.3 V supply, exposes UART, SPI, and GPIO interfaces for sensor or host connectivity, and includes an SMA-ready RF port footprint for antenna integration. Firmware updates are supported via a documented bootloader interface described in the TD1207 Reference Manual.
Architecturally the module separates the analog RF front-end, which performs modulation and demodulation, from the digital Cortex-M3 baseband, which executes the Sigfox protocol and exposes the AT command interpreter. This split keeps the analog path optimized for noise figure while letting firmware upgrades enhance protocol support without silicon changes, a notable advantage over hard-wired transceivers that require silicon revs for protocol updates.
Typical applications include battery-powered environmental sensors, smart metering, asset tracking, alarm and event reporting, and agricultural monitoring nodes. For designs that need BLE for provisioning or higher throughput, the related TD1208 (BLE+Sigfox) module is worth evaluating.
When designing with the TD1207, ensure the host provides a stable 3.3 V rail and follows the antenna placement guidance in the EVB user's guide to maintain RX sensitivity. For designs that require a verified Nordic equivalent for dual-radio BLE+Sigfox operation, the TD1208 is the recommended alternative from the same vendor.
Drop-in alternatives for TD1207 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TD1207 (same form factor and footprint) — differing in Modulation, Mounting Type, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TD1208
✅ Drop-In📋 Reference alternative (not in catalog)
TD1508
✅ Drop-In✓ In Stock
$12.3 / Unit
View Datasheet →SN10-100
✅ Drop-In📋 Reference alternative (not in catalog)
TD1207 Specifications (manufacturer-published)
| Product Type | Sigfox RF Transceiver Module |
| Manufacturer | Telecom Design / TD next |
| Operating Frequency Bands | 868 MHz (ETSI) / 902 MHz (FCC) |
| Modulation | Sigfox ultra-narrowband (UNB) |
| Protocol | Sigfox (RC1 / RC2 / RC3 / RC4 zone-ready) |
| RX Sensitivity (typical) | -126 dBm |
| TX Output Power (max) | +14 dBm |
| Baseband Processor | ARM Cortex-M3 |
| Supply Voltage | 3.3 V typical (single rail) |
| Host Interface | UART (AT commands), SPI, GPIO |
| Antenna Interface | SMA / U.FL footprint (model dependent) |
| Operating Temperature | -30 C to +70 C |
| Form Factor | Surface-mount module |
| RoHS Status | Compliant |
| Mounting Type | SMT (castellated edge pads) |
TD1207 Interfaces & Connectors
TD1207 exposes the following interfaces and connectors as published by the manufacturer: Power Input. Expansion header pinout, connector pin numbering, and electrical limits are defined in the manufacturer documentation.
| Power Input | 3.3 V typical (single rail) |
Refer to the manufacturer documentation for the full expansion header pinout and connector pin numbering.
Power & Thermal Characteristics
| Power Input | 3.3 V typical (single rail) |
| Operating Temperature | -30 C to +70 C |
Power input and thermal parameters for TD1207 as published by the manufacturer.
Typical Applications
TD1207 is suitable for 7 applications: Battery-Powered IoT Sensor Nodes, Smart Metering and Utility Monitoring, Asset Tracking and Logistics, Industrial Alarm and Event Reporting, Smart Agriculture and Environmental Monitoring, Connected Buildings and Facility Management, Logistics Container and Cold-Chain Monitoring.
Battery-Powered IoT Sensor Nodes
The TD1207's -126 dBm RX sensitivity and +14 dBm TX output power let a single-hop sensor node reach Sigfox base stations several kilometers away in line-of-sight conditions, while the ARM Cortex-M3 baseband executes the Sigfox stack entirely on-board. Per the TD1207 datasheet, designers pair it with a sleep duty cycle in firmware (typical <1% active for hourly reporting) so two AA alkaline cells can power the device for 5 to 10 years. The result is a truly drop-in low-power remote sensor for environmental, agricultural, or industrial telemetry.
Recommended
Smart Metering and Utility Monitoring
Electric, water, and gas utilities deploy the TD1207 for AMR / AMI metering because the Sigfox protocol enables long-range outdoor uplink with no gateway infrastructure requirement on the customer premises. According to the TD next Sigfox modules brochure, the module's +14 dBm TX efficiency and -126 dBm RX sensitivity give utility meters the link budget to reach distant base stations even when installed in basements or metal enclosures. The compact surface-mount form factor eases retrofit integration into meter enclosures without retooling the host PCB.
Recommended
Asset Tracking and Logistics
Pallet and high-value asset tracking is a flagship use of the TD1207 - the module's long-range uplink means a single Sigfox frame per hour is often enough to pinpoint shipment location via Sigfox geolocation services. The TD1207 datasheet shows the module's ultra-low standby current that lets a compact tracking tag ride a shipment for weeks without recharging, while the on-board ARM Cortex-M3 can wake up a GPS or motion sensor on demand. For dual-radio (Sigfox + BLE) trackers, the related TD1208 module supports local BLE commissioning.
Recommended
Industrial Alarm and Event Reporting
Factories deploy TD1207-based nodes on remote equipment for failure alerts, intrusion alarms, and emergency push-buttons where cellular is too costly or unavailable. Per the TD1207 datasheet, the AT command interface lets any microcontroller or PLC gateway module forward an emergency signal as a 12-byte Sigfox uplink frame with only minimal firmware integration. The -126 dBm sensitivity ensures alerts reach the Sigfox cloud even from inside metal cabinets or shielded plant rooms.
Recommended
Smart Agriculture and Environmental Monitoring
The TD1207 is widely deployed in soil moisture, irrigation, weather, and livestock monitoring stations where mains power is unavailable. Per the TD next Sigfox modules brochure, the module's combined RX sensitivity and TX efficiency enable multi-kilometer field ranges across orchard and row-crop deployments; battery nodes only need a few bytes per hour, which the Sigfox 12-byte frame accommodates. The compact surface-mount module integrates easily into weatherproof IP65 enclosures.
Recommended
Connected Buildings and Facility Management
Building managers deploy TD1207 wireless sensors in lighting, occupancy, leak detection, and HVAC monitoring roles to retrofit older buildings without pulling cable. According to the TD1207 datasheet, the module's AT-command interface and event-driven interrupts let the host MCU offload all radio and protocol work, simplifying firmware to a small event scheduler. The Sigfox network's bidirectional capability (limited downlink) supports over-the-air configuration changes pushed from the cloud.
Recommended
Logistics Container and Cold-Chain Monitoring
Refrigerated container shipments, pharmaceutical cold-chain, and remote telemetry use the TD1207 to push temperature, humidity, and door-state events to a central logistics dashboard over Sigfox. The module's ultra-narrowband physical layer is resilient to narrowband interference common on cargo vessels, per the TD1207 datasheet, while the Cortex-M3 baseband can host edge logic that summarizes temperature excursions before uplink. Multi-year battery life on D cells removes the need for recharging at every transit node.
Recommended
Recommended Products Summary
Engineering reference data for TD1207 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TD1208 | TD1508 | SN10-100 |
|---|---|---|---|---|
| Brand | TD next | TD next | TD next | Third-party Sigfox module vendor |
| Package | TD next module family footprint | TD next module family footprint | TD next module family footprint | TD next module family footprint |
| Protocol | Sigfox UNB (868 / 902 MHz) | Sigfox UNB + BLE | Sigfox UNB (868 / 902 MHz) | Sigfox UNB (868 / 902 MHz) |
| RX Sensitivity (typical) | -126 dBm | -126 dBm | -126 dBm | -120 dBm (third-party) |
| TX Output Power (max) | +14 dBm | +14 dBm | +14 dBm | +14 dBm |
| Host Interface | UART (AT), SPI, GPIO | UART (AT), SPI, GPIO | UART (AT), SPI, GPIO | UART (AT), GPIO |
| On-board Radios | 1 (Sigfox sub-GHz) | 2 (Sigfox sub-GHz + BLE) | 1 (Sigfox sub-GHz) | 1 (Sigfox sub-GHz) |
| Operating Temperature | -30 C to +70 C | -30 C to +70 C | -30 C to +70 C | -30 C to +70 C |
Key Differentiators
- Sub-GHz Sigfox-only implementation keeps BOM cost low (vs TD1208)
- Hosted ARM Cortex-M3 baseband offloads protocol from host MCU (vs Generic Sigfox transceiver ICs)
- Manufacturer-issued documentation set on public GitHub (vs Obscure third-party Sigfox modules)
Design Notes
Per the TD1207 EVB user's guide, place the module over a continuous ground plane on the host PCB and avoid routing high-speed digital traces under the antenna path. The castellated edge pad footprint needs proper pad length and stencil aperture to avoid solder-starvation during reflow.
Estimated: at typical Sigfox uplink duty cycle the module draws average current below 1 mA from a 3.3 V supply; peak TX burst can demand ~50 mA. Add a low-ESR 10 uF ceramic plus a 100 nF decoupling pair at the supply pin to handle the TX burst without rail droop.
Do not exceed the published operating temperature range. A region (RC) mismatch between module firmware and the deployed Sigfox network will result in silent uplink failure - verify that the loaded firmware profile matches RC1 (ETSI), RC2 (FCC), RC3 or RC4 at production flashing.
Compliance Information
RoHS compliance inferred from the manufacturer's product page. Sigfox / FCC / ETSI / ARIB regional approvals depend on zone firmware profile - verify per region before deployment.
