Lead free soldering, Msl rating, Storage and handling – GE Industrial Solutions FLT007A0-SRZ User Manual

Page 9

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Data Sheet

July 14, 2010

FLT007A0Z/FLT007A0-SRZ Input Filter Modules

75Vdc Input Voltage Maximum, 7A Output Current Maximum

LINEAGE

POWER

9

R

EF

LOW

T

EM

P (

°C)

REFLOW TIME (S)

Figure 13. Reflow Profile for Tin/Lead (Sn/Pb)
process.

M

AX T

EM

P S

OL

D

ER

(

°C)

Figure 14. Time Limit Curve Above 205

o

C Reflow

for Tin Lead (Sn/Pb) process.

Lead Free Soldering

The FLT007A0-SRZ 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 Figure. 15.

MSL Rating

The FLT007A0-SRZ SMT modules have a MSL rating
of 1.

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.

Per J-STD-020 Rev. C

0

50

100

150

200

250

300

Reflow Time (Seconds)

R

ef

lo

w

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 15. Recommended linear reflow profile
using Sn/Ag/Cu solder.

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