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E48-433M20S SPI Wireless module small size low power consumption, 433MHz RF transceiver CMT2310A chip

[Introduction]:E48-433M20S is a pure hardware, cost-effective wireless data transmission module developed by Chengdu Ebyte based on Huapu Microelectronics' CMT2310A chip solution. The wireless module supports a maximum transmit power of 20dBm, and users can set lower output power to reduce power consumption. The module works in the frequency band, covering the commonly used 433MHz frequency band. The module is a pure hardware RF transceiver module that uses an SPI interface and requires an external MCU driver.

Main Parameters Performance
Typical value
Minimum value Maximum value
Supply voltage (V)03.6Exceeding 3.6V may permanently burn the module
Working temperature (℃)-4085Industrial grade
Main Parameters Performance
Typical value
Minimum value Typical valueMaximum value
Working voltage (V)1.83.33.6Exceeding 3.6V may permanently burn the module
Communication level (V)-3.3-There is a risk of burning when using 5V level
Working temperature (℃)
-40-85Industrial grade
Working frequency band (MHz)410-450-
Power consumptionEmission current (mA)-90-@Transmit power 20dBm
Receive current (mA)-8.5--
Sleep current (nA)400-800-
Over-the-air speed (kbps)
0.1-1000-
Maximum transmit power (dBm)-20--
Receiving sensitivity (dBm)--120-@Air rate is 2.4kbps


Main Parameters Description Remarks
Reference distance3.5kmSunny and open space, antenna height 2.5 meters, antenna gain 3.5dBi, air rate 2.4kbps
Crystal frequency32MHzHigh precision passive crystal oscillator
Packaging methodSMD-
Communication InterfaceSPI-
Dimensions20*14mm-
RF interfaceIPEX/stamp holeEquivalent impedance is about 50Ω
product weight1.2±0.1g-