MIL-PRF-19500/228R
* TABLE II. Group E inspection (all quality levels) for qualification and requalification only.
Inspection
Sampling
plan
Method
Conditions
Subgroup 1A
45 devices
c=0
20 cycles, except high temperature shall be 150°C and low
Temperature cycling
1/ 1051
temperature shall be -195°C.
(air to air)
Hermetic seal 2/
1071
Electrical
measurements
Subgroup 1B
45 devices
c=0
500 cycles, condition C, -65°C to +175°C.
Temperature cycling
1051
(air to air)
Hermetic seal 2/
1071
Electrical
measurement
22 devices
Subgroup 2
c=0
TA = +150°C; t = 1,000 hours +65, -0 hours; dc = 80 - 85 percent
Steady-state dc
1048
blocking life
Electrical
See table I, subgroup 2.
measurement
Subgroup 4
See MIL-PRF-19500.
Thermal impedance
curves
Subgroup 5
22 devices
c=0
Barometric pressure
1001
1N3611, 1N3612, and 1N3613 at 8 mm Hg; 1N3614 and 1N3957
(reduced)
at 33 mm Hg.
7
See footnotes at end of table.
10
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