Chengdu Ebyte Electronic Technology Co., Ltd.
E103-W05B User Manual
Copyright ©2012–2018
，
Chengdu Ebyte Electronic Technology Co., Ltd
Chapter 7 Welding Operation Guidance
7.1 Reflow temperature
Profile Feature
Curve characteristics
Sn-Pb Assembly
Pb-Free Assembly
Solder Paste
Solder paste
Sn63/Pb37
Sn96.5/Ag3/Cu0.5
Preheat Temperature min
（
Tsmin
）
Min preheating temp.
100℃
150℃
Preheat temperature max (Tsmax)
Max preheating temp.
150℃
200℃
Preheat Time (Tsmin to Tsmax)(ts)
Preheating time
60-120 sec
60-120 sec
Average ramp-up rate(Tsmax to Tp)
Average ramp-up rate
3℃/second max
3℃/second max
Liquidous Temperature (TL)
Liquid phase temp
183℃
217℃
Time
（
tL
）
Maintained Above
（
TL
）
Time below liquid phase
line
60-90 sec
30-90 sec
Peak temperature
（
Tp
）
Peak temp
220-235℃
230-250℃
Aveage ramp-down rate
（
Tp to Tsmax
）
Average ramp-down rate
6℃/second max
6℃/second max
Time 25℃ to peak temperature
Time to peak temperature
for 25℃
6 minutes max
8 minutes max
