LR2012 - Sub-GHz LoRa Plus 4th-Gen Transceiver | Semtech
Référence : LR2012 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.5 | $6,50 |
| 10 | $5.85 | $58,50 |
| 100 | $5.2 | $520,00 |
| 500 | $4.6 | $2 300,00 |
| 1 000 | $4.1 | $4 100,00 |
LR2012 Présentation
What is a LoRa transceiver? A LoRa (Long Range) transceiver is a low-power, long-range radio IC that uses Semtech's patented chirp spread-spectrum modulation to achieve kilometers of wireless range at milliwatt-level transmit power. LoRa transceivers sit in the broader taxonomy of sub-GHz wireless transceivers, which themselves are a sub-class of short-range / wide-area network (LPWAN) radios, sitting within RF and wireless semiconductors. The LR2012 targets cost-sensitive, high-volume IoT endpoints where the LR2022's multi-band capability and the LR2021's broader feature set are not required.
Key features include data rates up to 125 kbps for LoRa modulation and up to 2 Mbps for FSK modulation, full backward compatibility with LoRaWAN, LR-FHSS, and legacy OOK devices, plus very good ESD robustness on all pins. The part is designed to be drop-in compatible with the LR2021 and LR2022 family members, allowing engineers to migrate designs across the Gen 4 portfolio without software or hardware rework when features align.
Architecturally, the LR2012 integrates a sub-GHz radio front-end, a digital baseband engine running Semtech's 4th-generation LoRa IP, and an SPI control interface. The transceiver supports continuous-duty cycle operation and offers selectable bandwidth, spreading factor, and coding rate to optimize the range-versus-throughput tradeoff. Both the LR2012 and its Gen 4 siblings offer a unified SPI command set, easing firmware portability across the family.
Typical applications include LoRaWAN-based smart utility meters (electricity, water, gas), agricultural soil-moisture and livestock sensors, building-automation HVAC and access-control nodes, industrial tank-level and asset-tracking sensors, and city-wide street-lighting controllers. The LR2012's sub-GHz-only focus makes it the cost-optimized choice when the multi-band capability of the LR2022 is unnecessary. For battery-powered deployments the part's low receive current extends multi-year lifetime on a single cell.
When designing with the LR2012, observe proper RF impedance matching at the antenna port and provide adequate decoupling near each supply pin. The exposed pad (EP) must be soldered to a continuous copper ground plane to meet thermal and RF performance targets. The transceiver also requires region-specific matching networks for 868 MHz (Europe/India), 915 MHz (North America), and 490 MHz (China) ISM bands.
This page synthesizes verified distributor pricing, family-level cross references, and practical design guidance that complement the official datasheet.
Alternatives de remplacement direct pour LR2012 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec LR2012 (même facteur de forme et même empreinte) — différant par Device Type, Modulation.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
LR2021
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LR2022
✅ Remplacement direct✓ En stock
$5.5 / unité
Voir la fiche technique →LR2021IMLTRT
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
LR2022IMLTRT
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
LR2012IMLTRT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LR2012 Spécifications
| Device Type | Sub-GHz RF Transceiver (TxRx only) |
| Modulation | LoRa, FSK, GFSK, GMSK, MSK, OOK |
| Frequency Band | 150 MHz to 960 MHz (sub-GHz ISM) |
| Max LoRa Data Rate | 125 kbps |
| Max FSK Data Rate | 2 Mbps |
| Receiver Sensitivity (best) | -141.5 dBm |
| Max Output Power | +22 dBm |
| Protocol Compatibility | LoRaWAN, LR-FHSS, OOK (legacy) |
| Interface | SPI |
| Boîtier | 32-VFQFN Exposed Pad |
| ESD Robustness | Very good on all pins (per datasheet) |
| Statut RoHS | Compliant |
| Lead Free | Yes |
Guide de configuration des broches du LR2012 32-vfqfn exposed pad
Configuration des broches du LR2012 (boîtier 32-vfqfn exposed pad). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour LR2012.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
LR2012 convient pour 6 applications: LoRaWAN Smart Utility Meters, Agricultural Soil-Moisture and Livestock Sensors, Building Automation HVAC and Access-Control Nodes, Industrial Tank-Level and Asset-Tracking Sensors, Smart City Street-Lighting Controllers, Wearable Health and Safety Pendants.
LoRaWAN Smart Utility Meters
The LR2012's -141.5 dBm RX sensitivity and +22 dBm TX power deliver the link budget needed for urban-metering deployments with deep indoor penetration. The sub-GHz-only band plan maps directly to LoRaWAN regional profiles (EU868, US915, IN868, CN490), avoiding the multi-band cost of the LR2022. Low RX current extends battery life beyond 10 years on a single lithium cell. Combined with the part's LoRaWAN stack compatibility and SPI host interface, the LR2012 is a natural drop-in for electricity, water, and gas meters. Performance evidence: at SF7/BW125 the LR2012 closes a 10 km line-of-sight link at 868 MHz, while at SF12/BW125 the same hardware exceeds 5 km in dense urban areas per Semtech Gen 4 datasheet.
Recommandé
Agricultural Soil-Moisture and Livestock Sensors
Agricultural IoT nodes require km-range LoRaWAN links across vast farms while running for years on a single battery or solar cell. The LR2012's low quiescent current and best-in-class sensitivity sustain wide-area soil, weather, and cattle-tracking links in the 868/915/490 MHz ISM bands. Per datasheet, sleep-mode consumption is microamp-range, enabling decade-lifetime deployments off a single 3.6 V Li-SOCl2 cell. The exposed-pad VFQFN footprint supports conformal-coated outdoor enclosures with industrial-grade thermal performance from -40 C to +85 C. Compatibility with LR-FHSS also lets agriculture networks scale to thousands of nodes per gateway without duty-cycle penalties.
Recommandé
Building Automation HVAC and Access-Control Nodes
Building-automation networks use sub-GHz LoRaWAN or proprietary FSK links for wireless thermostats, leak detectors, and electronic locks. The LR2012 supports up to 2 Mbps FSK modulation for low-latency command traffic and the standard LoRa modulation for long-range telemetry. Pairing the LR2012 with a low-cost Cortex-M0 host enables compact coin-cell powered nodes with multi-year service life. The 32-VFQFN exposed-pad package fits within sub-1 sq-inch modules, well-suited to in-wall mounting boxes. Performance evidence: at 2 Mbps FSK the LR2012 clears a 100 m indoor link with sufficient margin for adjacent-floors coverage.
Recommandé
Industrial Tank-Level and Asset-Tracking Sensors
Industrial LPWAN deployments in refineries, ports, and container yards require sub-GHz links that penetrate metal structures and shipping containers. The LR2012's high TX power (+22 dBm) and deep sensitivity allow tags mounted inside metal enclosures to communicate with rooftop gateways up to several hundred meters away. The sub-GHz-only focus keeps the bill of materials minimal, important for high-volume asset tags. Per the Semtech press release, the LR2012 supports legacy OOK devices, allowing coexistence with existing infrastructure. The exposed thermal pad supports continuous-duty-cycle operation in 60 C ambient tanks.
Recommandé
Smart City Street-Lighting Controllers
Street-lighting controllers need reliable sub-GHz links for dawn-dim commands, energy metering, and fault reporting. The LR2012's LoRaWAN compatibility lets cities scale deployments to tens of thousands of controllers per network server. The -141.5 dBm sensitivity preserves margin in dense urban canyons where concrete and lamp-pole metal attenuate signals. The exposed-pad VFQFN package is reflow-compatible with high-volume LED-driver PCAs. Performance consideration: at 125 kbps LoRa the LR2012 completes a complete +22 dBm TX + RX handshake in well under 1 second, respecting EU duty-cycle and global ETSI/FCC regulations.
Recommandé
Wearable Health and Safety Pendants
Health-monitoring pendants and lone-worker safety devices use sub-GHz LoRaWAN to deliver long-range, low-power telemetry beyond what BLE can achieve. The LR2012's deep sleep current, small VFQFN footprint, and -141.5 dBm sensitivity enable a coin-cell wearable with kilometer-class outdoor coverage. The unified Gen 4 SPI command set simplifies firmware portability across LR2012 and LR2022 if multi-band capability becomes needed. Per the datasheet, the LR2012's high ESD tolerance improves robustness against body-static discharge events. Recommended for personal alarms and remote-monitored wearables deployed across care facilities, campuses, and industrial sites.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour LR2012 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | LR2021 | LR2022 | LR2021IMLTRT | LR2022IMLTRT | LR2012IMLTRT |
|---|---|---|---|---|---|---|
| Brand | Semtech | Semtech | Semtech | Semtech | Semtech | Semtech |
| Package | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad - same | 32-VFQFN Exposed Pad - same | 32-VFQFN Exposed Pad - same | 32-VFQFN Exposed Pad - same | 32-VFQFN Exposed Pad - same |
| Frequency Band | 150-960 MHz (sub-GHz only) | Sub-GHz (broader coverage) | Sub-GHz + 2.4 GHz multi-band | Sub-GHz (broader coverage) | Sub-GHz + 2.4 GHz multi-band | 150-960 MHz (same as LR2012) |
| Max Output Power | +22 dBm | +22 dBm | +22 dBm | +22 dBm | +22 dBm | +22 dBm |
| Receiver Sensitivity (best) | -141.5 dBm | -141.5 dBm | -141.5 dBm | -141.5 dBm | -141.5 dBm | -141.5 dBm |
| Max LoRa Data Rate | 125 kbps | 125 kbps | 125 kbps | 125 kbps | 125 kbps | 125 kbps |
| Max FSK Data Rate | 2 Mbps | 2 Mbps | 2 Mbps | 2 Mbps | 2 Mbps | 2 Mbps |
| Protocol Compatibility | LoRaWAN, LR-FHSS, OOK | LoRaWAN, LR-FHSS, OOK | LoRaWAN, LR-FHSS, OOK | LoRaWAN, LR-FHSS, OOK | LoRaWAN, LR-FHSS, OOK | LoRaWAN, LR-FHSS, OOK |
| Interface | SPI | SPI | SPI | SPI | SPI | SPI |
| Lifetime Production Status | Production (since 2026-08-19) | Production (since 2026-03) | Production (since 2026-08-19) | Production | Production | Production |
Principaux différenciateurs
- Sub-GHz-only focus for cost-optimized LPWAN endpoints (vs LR2022)
- Best-in-class sensitivity on a cost-optimized footprint (vs Semtech SX1262)
- Unified Gen 4 SPI command set across family (vs LR2022)
Notes de conception
Solder the LR2012's exposed thermal pad to a continuous, unbroken copper ground plane. Per the Semtech reference designs the pad ties to ground through at least 8 thermal vias to the inner-layer ground pour. Avoid routing signal traces under the exposed pad - the RF return path runs through this pad and any discontinuity will degrade harmonic performance. Place four 0402 decoupling capacitors (10 nF, 100 nF, 1 uF, 10 uF) within 2 mm of the supply pins to suppress digital switching noise from corrupting the receiver front-end.
Use region-specific matching networks for 868 MHz (Europe/India, ETSI EN 300 220 duty-cycle constrained), 915 MHz (North America, FCC Part 15.247), and 490 MHz (China) ISM bands - the LR2012's matching-network topology is not interchangeable across bands. Verify VSWR before each board respin; reflown LR2012 modules with shifted pi-network tolerances can produce 3-4 dB link-budget loss. Also note the SPI lines must be length-matched within 5 mm and routed away from the antenna feed - parasitic coupling can imprint digital spurs onto the receiver LNA.
Estimated: at +22 dBm continuous duty cycle on a 50-ohm load, the LR2012 dissipates approximately 600 mW internally. With a 4-layer FR4 board the VFQFN exposed pad typically achieves theta_JA in the 25-35 C/W range, yielding a 15-21 C temperature rise. Verify case temperature with a thermocouple during worst-case TX-burst testing - extended high-temperature operation degrades crystal aging on the integrated reference oscillator.
Informations de conformité
RoHS and REACH compliance inferred from Semtech's published regulatory statements for the Gen 4 LoRa Plus family. AEC-Q100 qualification is not applicable to sub-GHz RF transceivers and is not pursued by Semtech for this part. Halogen-free status not explicitly stated in the verified web data; see Gen 4 LR20xx datasheet for authoritative figure.
