Crane Aerospace & Electronics Power Solutions
SMRT Single, Dual and Triple DC/DC Converters
28 VOLT INPUT – 35 WATT
CLASS
H
AND K, MIL-PRF-38534 ENVIRONMENTAL
SCREENING
END ITEM-LEVEL TEST
PERFORMED
SPACE PROTOTYPE (O)
CLASS H
QML
CLASS K
QML
1
NON-QML
2
3
Non-destruct bond pull
Method 2023
no
yes
yes
yes
Pre-cap Inspection
Method 2017, 2032
yes
yes
Temperature Cycle (10 times)
Method 1010, Cond. C, -65°C to 150°C, ambient
yes
yes
yes
yes
yes
yes
Constant Acceleration
Method 2001, 3000 g
PIND Test
Method 2020, Cond. A
3
no
yes
yes
yes
Pre burn-in test
yes
yes
Burn-in
Method 1015, 125°C case, typical
96 hours
160 hours
yes
no
no
no
yes
no
no
no
yes
2 x 160 hours (includes mid-BI test)
Final Electrical Test MIL-PRF-38534
Group A, Subgroups 1 through 6
-55°C, +25°C, +125°C case
yes
N/A
N/A
yes
N/A
N/A
yes
N/A
Radiography
Method 2012
Post Radiography Electrical Test
Room temperature
3
yes
Hermeticity Test
Fine Leak, Method 1014, Cond. A
Gross Leak, Method 1014, Cond. C
yes
yes
yes
yes
yes
yes
Final visual inspection
Method 2009
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
Notes:
1. Space Prototype (O), non-QML products, do not meet all of the requirements of MIL-PRF-38534.
2. Not applicable to EMI filters that have no wirebonds.
3. Not required by DSCC but performed to assure product quality.
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