Crane Aerospace & Electronics Power Solutions
SMRT Single, Dual and Triple DC/DC Converters
28 VOLT INPUT – 35 WATT
C
LASS
H
AND K, MIL-PRF-38534 ELEMENT
EVALUATION
COMPONENT-LEVEL TEST
PERFORMED
SPACE PROTOTYPE (O)
CLASS H
QML
CLASS K
QML
1
NON-QML
2
3
2
3
2
3
M/S
P
M/S
P
M/S
P
Element Electrical
Element Visual
yes
no
no
no
yes
yes
yes
yes
yes
yes
yes
yes
Internal Visual
no
no
no
no
no
no
no
N/A
no
no
no
no
no
N/A
no
yes
no
N/A
no
yes
yes
yes
yes
yes
yes
yes
N/A
N/A
yes
yes
yes
no
N/A
yes
yes
N/A
N/A
N/A
N/A
yes
yes
yes
yes
N/A
yes
Temperature Cycling
Constant Acceleration
Interim Electrical
Burn-in
no
no
no
N/A
N/A
N/A
N/A
no
no
N/A
N/A
N/A
N/A
no
no
Post Burn-in Electrical
Steady State Life
Voltage Conditioning Aging
Visual Inspection
Final Electrical
no
no
N/A
N/A
yes
yes
no
no
no
no
yes
yes
N/A
yes
4
Wire Bond Evaluation
no
SEM
N/A
no
SLAM™/C-SAM:
no
Input capacitors only
(Add’l test, not req. by H or K)
Notes:
1. Non-QML products do not meet all of the requirements of MIL-PRF-38534.
2. M/S = Active components (Microcircuit and Semiconductor Die)
3. P = Passive components
4. Not applicable to EMI filters that have no wirebonds.
Definitions:
Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534
SEM: Scanning Electron Microscopy
SLAM™: Scanning Laser Acoustic Microscopy
C-SAM: C - Mode Scanning Acoustic Microscopy
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