Chengdu Ebyte Electronic Technology Co., Ltd.
E31-433T30S User Manuel
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
3
2 Specifications
2.1 Limit parameter
Parameter
Item
Remark
Min
Max
Power supply
（
V
）
0
5.5
Voltage over 5.5V will cause
permanent damage to module
Blocking power
（
dBm
）
-
10
Chances of burn is slim when modules
are used in short distance
Operating temperature
（
℃
）
-40
85
/
2.2 Parameter
Parameter
Item
Remark
Min.
Typ.
Max.
Operating voltage
（
V
）
3.3
5.0
5.5
≥5.0V ensures output power
Communication level
（
V
）
3.3
For 5V TTL, it may be at risk of burning
down
Operating temperature
（
℃
）
-40
25
85
Industrial design
Operating frequency
（
MHz
）
425
433
450.5
Support ISM band
Power
consumpti
on
TX current
（
mA
）
580
600
650
Instant power consumption
RX current
（
mA
）
22
22
22
Sleep current
（
μA
）
2
2
2
Software is shut down
Max Tx power
（
dBm
）
29.8
30
30.8
Receiving sensitivity
（
dBm
）
-123
-123
-123
Air data rate is 1.2 kbps
Air data rate
（
bps
）
1.2k
1.2k
70k
Controlled via user’s programming
Parameter
Description
Remark
Distance for reference
8.6 km
Test condition
：
clear and open area, antenna gain: 5dBi
，
antenna height: 2.5m
，
air data rate: 1.2kbps
TX length
43 Byte
The maximum capacity of a single package is automatically
subcontracted after it is exceeded.
Buffer
512 Byte
Modulation
GFSK
Communication interface
TTL
@3.3V
Package
SMD
Connector
2.54mm
Size
40.5*25 mm
Antenna
Stamp hole+IPEX
50Ω impedance
