MIL-PRF-19500/611A
4.4.1 Group A inspection. Group A inspection shall be conducted in accordance with appendix E, table V of MIL-PRF-19500, and
table I herein. The following test conditions shall be used for ZθJX, end point measurements: ZθJX = 3.1°C/W.
a.
IM - - - - - - - - - - - - - - - - - - - - - - -
10 mA.
b.
VCE measurement voltage - - - - - - - - - -
20 V (same as VH).
c.
IH collector heating current - - - - - - - - - -
1 A (minimum).
d.
VH collector-emitter heating voltage - - - - - -
20 V (minimum).
e.
tH heating time - - - - - - - - - - - - - - - -
100 ms.
50 µs to 80 µs.
f.
tMD measurement delay time - - - - - - - - - - -
10 µs (maximum).
g.
tSW sample window time - - - - - - - - - - - - -
4.4.2 Group B inspection. Group B inspection shall be conducted in accordance with the conditions specified for subgroup testing in
appendix E, tables VIa and VIb of MIL-PRF-19500. Electrical measurements (end points) shall be in accordance with the applicable
steps and table I, group A, subgroup 2 herein except ZθJX, shall be performed after Intermittent Life (subgroup 4) only.
4.4.2.1 Group B inspection, appendix E, table VIa (JANS) of MIL-PRF-19500.
Subgroup
Method
Condition
B4
1037
VCB = 30 V dc; PT = 2.5 W at TA = room ambient as defined in the general requirements of
paragraph 4.5 of MIL-STD-750; ton = toff = 3 minutes minimum for 2,000 cycles. No heat sink
or forced air cooling on the devices shall be permitted.
B5
1027
See 4.5.4.
B6
3131
See 4.5.2
4.4.2.2 Group B inspection, appendix E, table VIb (JANTX and JANTXV) of MIL-PRF-19500.
Subgroup
Method
Condition
B3
1037
VCB = 30 V dc; PT = 2.5 W at TA = room ambient as defined in the general requirements of
paragraph 4.5 of MIL-STD-750; ton = toff = 3 minutes minimum for 2,000 cycles. No heat sink
or forced aircooling on the devices shall be permitted.
B6
3131
See 4.5.2
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 VII of MIL-PRF-19500. Electrical measurements (end points) shall be in accordance with the applicable steps and
table I, group A, subgroup 2 herein except ZθJX, shall be performed after Intermittent Life (subgroup 4) only.
4.4.3.1 Group C inspection, appendix E, table VII of MIL-PRF-19500.
Subgroup
Method
Condition
C2
2036
Test condition A; weight 3 pounds; time 15 seconds.
VCB = 30 V dc minimum; PT = 2.5 W at TA = room ambient as defined in the general
C6
1037
requirements of 4.5 of MIL-STD-750; ton = toff = 3 minutes minimum for 6,000 cycles. No heat
sink or forced air cooling on the devices shall be permitted.
4.4.4 Group E inspection. Group e inspection shall be conducted in accordance with the conditions specified for subgroup testing in
appendix E, table IX of MIL-PRF-19500 Electrical measurements (end points) shall be in accordance with the applicable steps and table
I, group A, subgroup 2 herein except ZθJX shall not be performed.
4
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