Surface mount information – GE Industrial Solutions ATL010A0X43-SR User Manual

Page 20

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Data Sheet
September 10, 2013

ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable:

9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current

LINEAGE

POWER

20

Surface Mount Information

(continued)

Lead Free Soldering

The –Z version ATL series SMT modules are lead-
free (Pb-free) and RoHS compliant and are both
forward and backward compatible in a Pb-free and a
SnPb soldering process. Failure to observe the
instructions below may result in the failure of or cause
damage to the modules and can adversely affect
long-term reliability.

Pb-free Reflow Profile

Power Systems will comply with J-STD-020 Rev. C
(Moisture/Reflow Sensitivity Classification for
Nonhermetic Solid State Surface Mount Devices) for
both Pb-free solder profiles and MSL classification
procedures. This standard provides a recommended
forced-air-convection reflow profile based on the
volume and thickness of the package (table 4-2). The
suggested Pb-free solder paste is Sn/Ag/Cu (SAC).
The recommended linear reflow profile using
Sn/Ag/Cu solder is shown in Fig. 36.

MSL Rating

The ATL010A0X43-SR module has an MSL rating of
2a.


Storage and Handling

The recommended storage environment and handling
procedures for moisture-sensitive surface mount
packages is detailed in J-STD-033 Rev. A (Handling,
Packing, Shipping and Use of Moisture/Reflow
Sensitive Surface Mount Devices). Moisture barrier
bags (MBB) with desiccant are required for MSL
ratings of 2 or greater. These sealed packages
should not be broken until time of use. Once the
original package is 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 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

ow

T

em

p

C

)

Heating Zone
1°C/Second

Peak Temp 260°C

* Min. Time Above 235°C
15 Seconds

*Time Above 217°C

60 Seconds

Cooling
Zone

Figure 36. Recommended linear reflow profile
using Sn/Ag/Cu solder.


































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