RV-8523 Datasheet, PDF (52/57 Pages) MICORO CRYSTAL SWITZERLAND – Real Time Clock

Micro Crystal
Real Time Clock / Calendar Module
17.RECOMMENDED REFLOW TEMPERATURE (LEADFREE SOLDERING)
Maximum Reflow Conditions in accordance with IPC/JEDEC J-STD-020C “Pb-free”
RV-8523
Temperature Profile
Average ramp-up rate
Ramp down Rate
Time 25°C to Peak Temperature
Preheat
Temperature min
Temperature max
Time Ts_min to Ts_max
Soldering above liquidus
Temperature liquidus
Time above liquidus
Peak temperature
Peak Temperature
Time within 5°C of peak temperature
Symbol
(Ts_max to Tp)
T_cool
T_to-peak
Ts_min
Ts_max
ts
T_L
t_L
Tp
tp
Condition
3°C / second max
6°C / second max
8 minutes max
150
200
60 - 180
217
60 – 150
260
20 - 40
Unit
°C / s
°C / s
m
°C
°C
Sec
°C
sec
°C
sec
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