MIL-PRF-19500/286K
4.4.3 Group C inspection. Group C inspection shall be conducted in accordance with the conditions specified for
subgroup testing in table E-VII of MIL-PRF-19500, and as follows. Electrical measurements (end-points) shall be in
accordance with of table I, subgroup 2 herein.
* 4.4.3.1 Group C inspection, table E-VII, of MIL-PRF-19500.
Subgroup
Method
Inspection
C2
2036
Tension: Test condition A; weight = 10 pounds; t = 15 seconds. Lead
fatigue: Test condition E; weight 2 pounds.
C5
4081
4.3.2).
I0 = 1.0 A dc minimum; TA = +55°C (max.); TJ = +150°C minimum; f = 50 - 60
C6
1026
minimum.
4.4.4 Group E inspection. Group E inspection shall be conducted in accordance with the conditions specified for
subgroup testing in table E-IX of MIL-PRF-19500 and table II herein. Electrical measurements (end-points) shall be
in accordance with the applicable inspections of table I, subgroup 2 herein.
4.5 Methods of inspection. Methods of inspection shall be as specified in the appropriate tables and as follows.
4.5.1 Inspection conditions. Unless otherwise specified, all inspections shall be conducted at TA = room ambient
as defined in the general requirements of 4.5 of MIL-STD-750.
4.5.2 Free air power burn-in and life tests. The use of a current limiting or ballast resistor is permitted provided
that each DUT still sees the full Pt (minimum) and that the minimum applied voltage, where applicable, is maintained
4.5.2.1 Mounting configurations. Any clips or heat sink mounting configurations may be utilized provided that IO is
adjusted such that the junction temperature of each diode is maintained at TJ = +135°C minimum for burn-in
screening and TJ = +150°C minimum for JAN, JANTX and JANTXV life testing.
4.5.3 Scope display evaluation. Scope display evaluation shall be sharp and stable in accordance with method
4023 of MIL-STD-750. Scope display may be performed on ATE (automatic test equipment) for screening only with
the approval of the qualifying activity. Scope display in table I, group A, subgroup 4 shall be performed on a scope.
Reverse current over the knee shall be 500 μA peak.
4.5.4 Peak reverse power test. This test shall be measured as on the figure 4 test circuit, or equivalent. A 20
microsecond half-sine waveform of current shall be used and peak reverse power shall be determined by the
product of peak reverse voltage and peak reverse current.
4.5.5 Pulse measurements. Conditions for pulse measurement shall be as specified in section 4 of MIL-STD-750.
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