Chengdu Ebyte Electronic Technology Co., Ltd. E43-900T13S3 User manualCopyright ©2012–2019,Chengdu Ebyte Electronic Technology Co., Ltd. 2111. Welding operation guidance11.1 Reflow temperatureProfile Feature Curve feature Sn-Pb Assembly Pb-Free AssemblySolder Paste Solder paste Sn63/Pb37 Sn96.5/Ag3/Cu0.5Preheat Temperature min (Tsmin) Mini.preheatingtemperature 100℃ 150℃Preheat temperature max (Tsmax) Max. preheatingtemperature 150℃ 200℃Preheat Time (Tsmin to Tsmax)(ts) Preheating temperature 60-120 sec 60-120 secAverage ramp-up rate(Tsmax to Tp) Average Rising Rate 3℃/second max 3℃/second maxLiquidous Temperature (TL) Liquid phase temperature 183℃ 217℃Time(tL)Maintained Above(TL) Time above liquidus 60-90 sec 30-90 secPeak temperature(Tp) Peak Temperature 220-235℃ 230-250℃Aveage ramp-down rate(Tp toTsmax) Average Decline Rate 6℃/second max 6℃/second maxTime 25℃ to peak temperature Time from 25℃ to peaktemperature6 minutes max 8 minutes max