MIL-PRF-19500/158T
TABLE III. Group E inspection qualification and requalification (all product assurance levels).
Qualification conformance
MIL-STD-750
Inspection
inspection (sampling plan)
Method
Conditions
Subgroup 1
22 devices, c = 0
Temperature cycling
1051
500 cycles.
Electrical measurements
See table I, subgroup 2 herein.
22 devices, c = 0
Subgroup 2
Steady-state operation life
1038
Condition B, 1,000 hours. (see 4.3.1).
Electrical measurements
See table I, subgroup 2 herein.
Subgroup 3
3 devices, c = 0
Decap analysis
2101
Cross section and scribe and break.
Separate samples shall be used for each test.
Subgroups 4, 5, 6, and 7
Not applicable
Subgroup 8
45 devices
Step stress to destruction by increasing cycles
Resistance to glass
1057
or up to a maximum of 25 cycles.
cracking
TABLE IV. Reference voltage time stability.
MIL-STD-750
Limits
Inspection
Symbol
Unit
Method
Conditions
Min
Max
TA = +100C 2C
VZ
Reference-voltage time
IZ = 10 0.01 mA dc
stability
(see 4.5.2 and 4.5.3)
1N3154-1, 1N3154UR-1
0 to 340 hours
7
mV dc
1N3155-1, 1N3155UR-1
7
mV dc
1N3156-1, 1N3156UR-1
6
mV dc
1N3157-1, 1N3157UR-1
5
mV dc
mV dc
340 to 1,000 hours
4
1N3154-1, 1N3154UR-1
mV dc
4
1N3155-1, 1N3155UR-1
mV dc
3
1N3156-1, 1N3156UR-1
mV dc
3
1N3157-1, 1N3157UR-1
11
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