Chengdu Ebyte Electronic Technology Co., Ltd.
E104-BT54 User manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
7
Preheat Temperature min
（
Tsmin
）
Minimum preheating temperature
100
℃
150
℃
Preheat temperature max (Tsmax)
Maximum preheating temperature
150
℃
200
℃
Preheat Time (Tsmin to Tsmax)(ts)
Preheating time
60-120 sec
60-120 sec
Average ramp-up rate(Tsmax to Tp)
Average rising rate
3
℃
/second max
3
℃
/second max
Liquidous Temperature (TL)
Liquid phase temperature
183
℃
217
℃
Time
（
tL
）
Maintained Above
（
TL
）
Time above liquidus
60-90 sec
30-90 sec
Peak temperature
（
Tp
）
Peak temperature
220-235
℃
230-250
℃
Aveage ramp-down rate
（
Tp to
Tsmax
）
Average descent rate
6
℃
/second max
6
℃
/second max
Time 25
℃
to peak temperature
Time of 25 ° C to peak temperature
6 minutes max
8 minutes max
4.2 Reflow Soldering Curve
5. Antenna Type
5.1 Antenna recommendation
The antenna plays an important role in the communication process. The inferior antenna often has a great impact on the
communication system. Therefore, we recommend some antennas that support our wireless modules and have excellent
performance and reasonable price.