LF7811 LoRa transceiver for 433-510MHz band
LoRa Module

LF7811 LoRa transceiver for 433-510MHz band

  • Vendor:Maxiiot
  • Category: Featured Products, Home page, LoRa Modules
Availability: In Stock
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LF7811 is a compact, low power, bidirectional transcevier module for 433~510MHz band, provides ultra-long range spread spectrum communication and high inteference immunity whilst minimissing current consumption. It Integrated with Semtech's SX1278 RF transceiver, high sensitivity of over -139dBm combined with the integrated +18.6dBm power amplifer yields industry leading link budget making LF7811 optimal for any application requiring range or robustness.  
The LoRaTM modulation, in contrast to conventional modulation techniques , permits an increase in link budget and increases immunity to in-band interference. It achieves sensitivities 8dBm batter than traditional FSK modulation and it also provides significant advantages in both blocking and slectivity.


  • LoRaTM Modem 
  • Frequency:ISM band, 433~510MHz Optional. 
  • High sensitivity: down to -139dBm +18.6dBm constant RF output 
  • 100mW RF transimission, 7 level adjustable 
  • Programmable bit rate up to 300kbps 
  • Low Rx Current of 10mA , 200nA register retention. 
  • FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation 
  • Excellent blocking immunity 
  • Dimensions:21.2*16.7*2.7mm (W*L*H) 127dB Dynamic Range RSSI

Function Block Diagram





  • Home and Building Automation
  • Industrial Monitoring and Control
  • Smart Environmental Monitoring
  • Smart Agriculture
  • Location Monitoring
  • Wireless Alarm and Security Systems
  • Long Range Irrigation Systems
  • Smart Cities
  • Automated Meter Reading
  • Low power consumption IoT application

Ordering Information

Part list: LoRa module *1

Model No. Description
LF7811-W 433MHz,Suitable for Europe
LF7811-C 470~510MHz,Suitable for China
Technical Specification
Module Name LF7811
Product Description LoRa Wireless Module
Package LCC Type
Host Interface UART
RF Transceiver SX1278
Dimensions TYP. 21.2*16.7*2.7mm (W*L*H)
Electric Specification
Frequency 433~510MHz, Optional
Band Width 62.5~500KHz
Tx Power  +18.6dBm
Receive Sensitivity Down to -139dBm
Link Budget Up to 157.6dB
Operation Conditions
Supply Voltage  +3.3V
Average Tx Current ≤108mA 
Average Rx Current ≤20mA 
Sleeping Current ≤1uA
Sleeping Period More than 2S, optional
Operating Period More than 3S, Optional
Operating Temperature  -40~+85°C(Industrial Grade)
Storage Temperature  -40~+125°C
Humidity Operating:10%~90%
WAN Protocol ISM Band-LoRaTM
ESD JEDEC.JS-001, Standard ±1kV, Class 2