E28-2G4M27SX 2.4GHz SX1281 RF transceiver module,Extremely low current consumption in low-power mode
[Chip solution]：SX1281
[Frequency]：2.4~2.5GHz
[Transmitter power]：27dbm
[Communication distance]：8km
[Size]：15*20mm
[Product weight]：1.5±0.1g
[Introduction]：E28-2G4M27SX is a 2.4GHz RF transceiver lora module designed and produced by Ebyte based on the SX1281 chip, with a transmit power of 500mW, SPI interface, and extremely low current consumption in low-power mode;the module is a small-volume SMD type (pin spacing 1.27mm) , using 52MHz industrial-grade high-precision low-temperature drift crystal oscillator to ensure its industrial characteristics and its stable performance.
| RF parameters | value | Remark |
| Working frequency | 2400~2500 MHz | Supports ISM bands |
| Transmit power | 27 dBm | Maximum power (about 500mW) |
| Receive sensitivity | -132 dBm | Airspeed 595kbps |
| Air speed | LoRa(bps)：0.595k~253.9k FLRC(bps)：260k~1.3M GFSK(bps)：125k~2M | User programmable customization |
| Measured distance | 8000米 | Clear sky, antenna gain 5dBi, antenna height 2.5m, airspeed 1kbps |
| Electrical parameters | Min | Typ | Max | Unit | Remark |
| Working voltage | 2.5 | 3.3 | 3.6 | V | ≥3.3V can guarantee output power |
| Communication level | - | 3.3 | - | V | Risk of burnout with 5V TTL |
| Emission current | - | 580 | - | mA | Instantaneous power consumption |
| Receive current | - | 14.5 | - | mA | - |
| Sleep current | - | 2.0 | - | μA | software shutdown |
| Working temperature | -40 | - | +85 | ℃ | Industrial grade design |
| Working humidity | 10 | 60 | 90 | % | - |
| Storage temperature | -40 | 20 | +125 | ℃ | - |
| Hardware parameters | value | Remark |
| Dimensions | 20 * 15 mm | - |
| Antenna Interface | IPEX/PCB | Equivalent impedance is about 50Ω |
| Communication Interface | SPI | 0～10Mbps |
| Packaging Method | SMD | - |