Welding Operation Guidance; Reflow Soldering Temperature; Reflow Soldering Curve - Ebyte E49-900T20S User Manual

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10. Welding operation guidance

10.1 Reflow Soldering Temperature

Solder Paste
Preheat Temperature min （Tsmin）
Preheat temperature max (Tsmax)
Preheat Time (Tsmin to Tsmax)(ts)
Average ramp-up rate(Tsmax to Tp)
Liquidous Temperature (TL)
Time（tL）Maintained Above（TL）
Peak temperature（Tp）
Aveage ramp-down rate（Tp to Tsmax）
Time 25℃ to peak temperature

10.2 Reflow Soldering Curve

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Profile Feature Sn-Pb Assembly Pb-Free Assembly
Sn63/Pb37 Sn96.5/Ag3/Cu0.5
100℃
150℃
60-120 sec
3℃/second max 3℃/second max
183℃
60-90 sec
220-235℃
6℃/second max 6℃/second max
6 minutes max 8 minutes max
E49-900T20S User Manual
150℃
200℃
60-120 sec
217℃
30-90 sec
230-250℃
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