User's Manual

January
2016 DocID0xxxxx Rev 0.17
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change
without notice. www.st.com
Figure 6: Soldering profile
Here following some suggestions for the temperature profile based on the following recommendations.
Table 5: Soldering
Profile feature
PB-free assembly
Average ramp-up rate (T
SMAX
to T
P
)
3 °C/sec max
Preheat:
– Temperature min. (T
S
min.)
– Temperature max. (T
S
max.)
– Time (t
s
min. to t
s
max.)(t
s
)
150 °C
200 °C
60-100 sec
Time maintained above:
– Temperature T
L
– Temperature T
L
217 °C
60-70 sec
Peak temperature (T
P
)
240 + 0 °C
Time within 5 °C of actual peak temperature (T
P
)
10-20 sec
Ramp-down rate
6 °C/sec
Time from 25 °C to peak temperature
8 minutes max.
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