Chengdu Ebyte Electronic Technology Co.,Ltd. E31-433T30D User Manual
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
4
2. Specifications
2.1 Limit parameters
Main parameter
Performance
Remark
Mini. value
Max. value
supply voltage
（
V
）
0
5.2
The module will be burnout
permanently with over 5.5V
Blocking power
（
dBm
）
-
10
There’s small probability of burning
module at close range use
Operating temperature
（
℃
）
-40
85
2.2 Working parameters
Main parameter
Performance
Remark
Mini.
value
Typical value
Max.
value
supply voltage
（
V
）
3.3
5.0
5.2
≥5.0V ensures output power
Communication level
（
V
）
3.3
For 5V TTL, it may be at risk of
burning down
Operating temperature
（
℃
）
-40
-
85
Industrial design
Working frequency
（
M Hz
）
425
-
450.5
Support ISM band
Power
consumption
Transmit current(mA
）
680
Instant power consumption
Receive current
（
mA
）
13
Sleep current
（
μA
）
5
Software is shut down
M ax. transmit power
（
dBm
）
29.4
30.0
31.5
Receiving sensitivity
（
dBm
）
-125
-126
-127
Air data rate is 1.3kbps
Air data rate
（
bps
）
1.2k
5k
70k
Controlled via user’s programming
Main parameter
Description
Remark
Distance for reference
6000m
Test condition
：
clear and open area, antenna gain: 5dBi
，
antenna height: 2.5m
，
air data rate: 1.3kbps
subcontracting method
43 Byte
The max capacity for each packet
Buffer
512 Byte
M odulation
GFSK
Communication interface
TTL
@3.3V
Package
DIP
Connector
2.54mm
Size
24*43mm
Antenna
SM A-K
50 ohm impedance
