Chengdu Ebyte Electronic Technology Co,;Ltd E70-915T14S user manual
Copyright ©2012–2019
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Chengdu Ebyte Electronic Technology Co,;Ltd 24
11.3 BER(Bit Error Rate) is high
There are co-channel signal interference nearby, please be away from interference sources or modify frequency and
channel to avoid interference;
Poor power supply may cause messy code. Make sure that the power supply is reliable.
The extension line and feeder quality are poor or too long, so the bit error rate is high;
12.Production guidance
12.1 Reflow soldering temperature
Profile Feature
Sn-Pb Assembly
Pb-Free Assembly
Solder Paste
Sn63/Pb37
Sn96.5/Ag3/Cu0.5
Preheat Temperature min
（
Tsmin
）
100℃
150℃
Preheat temperature max (Tsmax)
150℃
200℃
Preheat Time (Tsmin to Tsmax)(ts)
60-120 sec
60-120 sec
Average ramp -up rate(Tsmax to Tp)
3℃/second max
3℃/second max
Liquidous Temperature (TL)
183℃
217℃
Time
（
tL
）
M aintained Above
（
TL
）
60-90 sec
30-90 sec
Peak temperature
（
Tp
）
220-235℃
230-250℃
Average ramp-down rate
（
Tp to Tsmax
）
6℃/second max
6℃/second max
Time 25℃ to peak temperature
6 minutes max
8 minutes max
