LED Roadway Lighting Ltd. 0115 ユーザーズマニュアル
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Soldering
SPZB32Wxy1.z
14/19
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8 Soldering
The soldering phase must be carefully executed; in order to avoid undesired melting
phenomenon, particular attention must be paid to the set-up of the peak temperature.
phenomenon, particular attention must be paid to the set-up of the peak temperature.
Below are some suggestions for the temperature profile based on IPC/JEDEC J-STD-020C,
July 2004 recommendations
July 2004 recommendations
Table 7.
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
Time t
L
217 °C
40 – 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.