MIL-PRF-19500/552G
4.3.1 Power burn-in and steady-state operation life test conditions. This test shall be conducted with the devices
subjected to test conditions in the following order of events and conditions:
Pulse in accordance with 4.5.2.a, 20 times (screening and group B operation life test) and 100 times
a.
(group C) at TA = +25°C.
Read ID and VBR at TA = +25°C, remove defective devices, and record the number of failures.
b.
c.
Apply the working peak reverse voltage (VWM) (column 4 of table II herein) at an ambient temperature of
TA = +125°C, as follows. End-point measurements shall be performed within 24 hours.
(1) 96 hours minimum (JANTX and JANTXV) for the screening test.
(2) 340 hours (JAN, JANTX, and JANTXV) for group B steady-state operation life test.
(3) 1,000 hours for group C steady-state operation life test.
Read and record ID and VBR at TA = +25°C. Devices with ĆID > 50 percent (100 percent for steady-state
d.
operation life) of initial value or 20 percent of column 5, table II herein, whichever is greater, or
ĆVBR > 2 percent (±5 percent for steady-state operation life) of initial value shall be considered defective.
For steady-state operation life, ID limit (maximum) shall be two times the table I, subgroup 2 limit. Remove
defective devices and record the number of failures.
4.4 Conformance inspection. Conformance inspection shall be in accordance with MIL-PRF-19500.
4.4.1 Group A inspection. Group A inspection shall be conducted in accordance with MIL-PRF-19500 and
table I herein. End-point electrical measurements shall be in accordance with table I, subgroup 2 herein.
4.4.2 Group B inspection. Group B inspection shall be conducted in accordance with the conditions specified for
subgroup testing in table E-VIB of MIL-PRF-19500. Electrical measurements (end-points) and delta requirements
shall be in accordance with the applicable steps of table III herein.
4.4.2.1 Group B inspection, appendix E, table E-VIB of MIL-PRF-19500.
Subgroup
Method
Conditions
-55°C to +175°C, 25 cycles n = 22, c = 0.
B2
1051
B3
1026
See 4.3.1.
B5
Not applicable.
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 and as follows. Electrical measurements (end-points)
and delta requirements shall be in accordance with the applicable steps of table III herein.
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