Surface mount information (continued), Through-hole lead-free soldering information – GE Industrial Solutions EHW015A0A Series (Eighth-Brick) User Manual

Page 12

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Data Sheet

October 2, 2009

EHW015A0A Series Eighth-Brick Power Modules

36–75Vdc Input; 5.0Vdc Output; 15A Output Current

LINEAGE

POWER

12

Surface Mount Information (continued)

broken, the floor life of the product at conditions of

30°C and 60% relative humidity varies according to the
MSL rating (see J-STD-033A). The shelf life for dry
packed SMT packages will be a minimum of 12 months
from the bag seal date, when stored at the following
conditions: < 40° C, < 90% relative humidity.

Post Solder Cleaning and Drying
Considerations

Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect both
the reliability of a power module and the testability of
the finished circuit-board assembly. For guidance on
appropriate soldering, cleaning and drying procedures,
refer to Lineage Power Board
Mounted Power Modules: Soldering and Cleaning

Application Note (AN04-001).

Per J-STD-020 Rev. C

0

50

100

150

200

250

300

Reflow Time (Seconds)

R

efl

o

w

T

em

p

C

)

He ating Zone
1°C/Second

Peak Temp 260°C

* Min. Time Above 235°C
15 Seconds

*Time Above 217°C

60 Seconds

Cooling
Zone

Figure 27. Recommended linear reflow profile using
Sn/Ag/Cu solder.

Through-Hole Lead-Free Soldering
Information

The RoHS-compliant through-hole products use the
SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant
components. They are designed to be processed
through single or dual wave soldering machines. The
pins have an RoHS-compliant finish that is compatible
with both Pb and Pb-free wave soldering processes. A
maximum preheat rate of 3

°C/s is suggested. The

wave preheat process should be such that the
temperature of the power module board is kept below
210

°C. For Pb solder, the recommended pot

temperature is 260

°C, while the Pb-free solder pot is

270

°C max. Not all RoHS-compliant through-hole

products can be processed with paste-through-hole Pb
or Pb-free reflow process. If additional information is
needed, please consult with your Lineage Power
representative for more details.

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