MIL-PRF-19500/108L
4.4 Conformance inspection. Conformance inspection shall be in accordance with MIL-PRF-19500 and as specified
herein. If alternate screening is being performed in accordance with MIL-PRF-19500, a sample of screened devices
shall be submitted to and pass the requirements of table I, subgroups 1 and 2 inspection only (table E-VIB, group B,
subgroup 1 of MIL-PRF-19500 is not required to be performed again if group B has already been satisfied in
accordance with 4.4.2).
4.4.1 Group A inspection. Group A inspection shall be conducted in accordance with appendix E, table E-V of
MIL-PRF-19500, and table I herein.
4.4.2 Group B inspection (JAN and JANTX). Group B inspection shall be conducted in accordance with the
conditions specified for subgroup testing in table E-VIB (JAN and JANTX) of MIL-PRF-19500 and as follows.
Electrical measurements (end-points) shall be in accordance with the applicable steps and footnotes of table II
herein. Subgroups 3 and 6 of table E-VIB of MIL-PRF-19500, shall be performed on a sample from the sublot
containing the highest voltage rated devices in the lot.
Subgroup
Method
Condition
ĆTJ between cycles ≥ +100°C; ton = toff ≥ 1 minute for 2,000 cycles. No heat
B3
1037
sink or forced air cooling on the device shall be permitted during the on state.
TC = 108°C ±5°C, 50 minutes on, Io = 4 A, TC uncontrolled, 10 minutes off.
B3 (option 1)
1026
4.4.3 Group C inspection. Group C inspection shall be conducted in accordance with the conditions specified for
subgroup testing in appendix E, table E-VII of MIL-PRF-19500. Electrical measurements (end-points) requirements
shall be in accordance with the applicable steps of table II herein.
4.4.3.1 Group C inspection, appendix E, table E-VII of MIL-PRF-19500.
Subgroup
Method
Conditions
C2
2036
Test condition A, weight = 10 pounds, duration = 15 seconds.
ĆTJ between cycles ≥ +100°C, ton = toff ≥ 1 minute for 6,000 cycles. No
C6
1037
heat sink or forced air cooling on the device shall be permitted during the
on state.
TC = 108°C ±5°C, 50 min on, Io = 4 A, TC uncontrolled, 10 minutes off.
C6 (option 1)
1026
4.5 Methods of inspection. Methods of inspection shall be as specified in the appropriate tables and as follows.
4.5.1 Pulse measurements. Conditions for pulse measurement shall be as specified in section 4 of MIL-STD-750.
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