[4th Generation LoRa] Utilizes the Semtech LR2021 antenna, supporting high-speed transmission up to 2.6 Mbps FLRC.
[Multi-Band Support] Supports Sub-GHz, 2.4 GHz, and S-Band, covering terrestrial and satellite communications.
[High Performance, Low Power Consumption] +22 dBm transmit power, -141.5 dBm sensitivity, 470 nA sleep current.
[Multi-Protocol Compatibility] Supports LoRaWAN, Wi-SUN, Z-Wave, Thread, Zigbee, and other protocols.
[Small Size, Easy Integration] 10×10 mm surface mount package; single antenna design saves PCB space and BOM costs.
[FCC ID, CE Certification]
LR2021 is a compact wireless communication module powered by Semtech’s 4th-generation LR2021 LoRa chip. It supports Sub-GHz, 2.4 GHz ISM, and S-band (1900–2200 MHz), enabling flexible terrestrial and satellite communication. With up to 2.6 Mbps FLRC, -141.5 dBm sensitivity, and +22 dBm Sub-GHz transmit power, LR2021 delivers reliable long-range and high-speed connectivity. Its single-antenna multi-band design reduces BOM cost and PCB space, while the 10×10 mm compact package makes integration easy. Supporting LoRaWAN, Amazon Sidewalk, Wi-SUN, W-MBUS, Z-Wave, Thread, and Zigbee, LR2021 is ideal for global IoT, smart metering, asset tracking, industrial automation, and satellite-enabled applications.
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RF chip |
Semtech LR2021 Chip |
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LoRa Specification |
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Transmit Power TX |
+22 dBm @max (Sub-GHz), +12 dBm (2.4 GHz); |
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Receiving Sensitivity |
-141.5dBm, @SF12/BW=125 kHz |
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Link Budget |
Support 151db link budget |
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Demodulator |
Supports LoRa/(G)FSK/OOK/O-QPSK/LR-FHSS/FLRC signal modulation; SF5~SF12; Support 150MHz-960MHz configuration; Supports Sub-GHz (850~930 MHz) + 2.4 GHz + S band (1900–2200 MHz) |
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Data Transfer Rate |
0.0458–125 kbps (LoRa), 260 kbps–2.6 Mbps (FLRC) |
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Other |
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Frequency |
Sub-GHz: 850~930 MHz (applicable to 868/915 MHz); 2.4 GHz ISM (2400–2483 MHz); Licensed S-band (1900–2200 MHz, satellite communications); |
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Communication Interface |
SPI(0~10Mbps) |
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Lead Pin |
Such as SPI signal, VCC, multiple GND pins, NRST, ANT (Sub-GHz), ANT (2.4 GHz), multiple DIO pins, TX control, RX control, BUSY state, etc. |
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Antenna |
SMT pins, impedance @50 Ω (Sub-GHz antenna pin + 2.4 GHz antenna pin) |
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Communication Distance |
6~8km, maximum over 15km |
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Crystal Type |
Industrial grade 32MHz TCX0 |
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Operating Voltage |
1.8~3.7V |
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Operating Temperature |
-40℃~+85℃,Industrial standard design |
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Package Size |
10*10*3.5mm, 20-Pin, SMT assembly, stamp hole; |
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Weight |
3g |
Application scenarios
Pin Definition
Package List
Wiki & External links