MIL-PRF-19500/498E
* TABLE II. Group E inspection (all quality levels) for qualification or re-qualification only.
Inspection
Qualification
MIL-STD-750
Method
Conditions
45 devices
Subgroup 1
c=0
500 cycles.
1051
Temperature cycling
1071
Hermetic seal
Test conditions G or H
Fine leak
Test conditions C or D
Gross leak
See table I, subgroup 2 herein.
Electrical
measurements
45 devices
Subgroup 2
c=0
1,000 hours minimum, TA = +150°C, VCB = 80 percent
1048
Blocking life
of rated.
Electrical
See table I, subgroup 2 herein (except for thermal
measurements
impedance).
Subgroup 4
Sample size
N/A
Each supplier shall submit their qual-lot average and
Thermal impedance
design maximum thermal impedance curves to the
curves
qualifying activity. In addition, the optimal test
conditions and thermal impedance limit shall be
provided to the qualifying activity in the qualification
report.
15 devices
Subgroup 5
c=0
Condition C; See 1.3
1001
Barometric pressure
3 devices
Subgroup 6
Testing is not required for class 3 listing. Testing is
1020
ESD
required for a nonsensitive listing to prove capability.
Subgroup 8
45 devices
c=0
Reverse stability
1033
Condition A.
12
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