EBYTE E19-433M20SC SX1278 433MHz RF module


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E19-433M20S is based on original imported RFIC SX1278 from SEMTECH, adopts LoRa spread spectrum technology. Which means the transmitting distance is much longer than before, besides the power density is more... Read more

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Categories: RF moduleTags: 20dBm, 433mhz, 5km, SPI, SX1278

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E19-433M20S is based on original imported RFIC SX1278 from SEMTECH, adopts LoRa spread spectrum technology. Which means the transmitting distance is much longer than before, besides the power density is more concentrated and anti-interference performance is better. It boasts outstanding range, efficiency and interference resistance, making it the ideal choice for all your long-distance wireless connectivity needs.

[IC] : SX1278

[Frequency] : 410~441MHz

[Power] : 20dBm

[Distance] : 5.0km

[Interface] : SPI

[Weight] : 2.3±0.1g

RF Parameter Value
Working frequency
2400~2500 MHz

ISM band

Transmitting power 27 dBm

About 500mW

Receiving sensitivity -132 dBm

Air data rate: 595kbps

Air data rate




Defined by user via programming

Test distance 8000m

Test condition:clear and open area, antenna gain: 5dBi,

antenna height: 2.5m,air data rate: 1kbps

Hardware Parameter Value
26.5 * 15 mm


Antenna type IPEX / PCB

50Ω Impedance

Communication interface SPI


Package SMD


Electronic parameter Min. Typ. Max. Unit Condition
Power supply
2.5 3.3 3.6 V ≥3.3 V ensures output power
Communication level - 3.3 - V For 5V TTL, it may be at risk of burning down
Transmitting current


580 - mA Instant power consumption
Receiving current -
14.5 - mA
Sleep current - 2.0 - μA Software is shut down
Operating temperature
-40 20
+85 -
Operating humidity
10 60
90 % -
Storage temperature
-40 20
+125 -

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EBYTE E19-433M20SC SX1278 433MHz RF module