MIL-PRF-19500/347B
4.4 Quality conformance inspection. Quality conformance inspection shall be in accordance with MIL-PRF-19500,
and as specified herein.
4.4.1 Group A inspection. Group A inspection shall be conducted in accordance with MIL-PRF-19500, and table I
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 (JAN and JANTX) of MIL-PRF-19500, and as follows. End-point electrical
measurements shall be in accordance with table I, subgroup 2 herein. Delta requirements shall be in accordance
with the applicable test of table II herein.
4.4.2.1 Group B inspection, table E-VIB of MIL-PRF-19500.
Subgroup
Method
Condition
TA = 25°; VCB =10 V dc; PT = 1.0 W.
B3
1027
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. End-point electrical measurements shall be in
accordance with table I, subgroup 2 herein. Delta requirements shall be in accordance with the applicable test of
table II herein.
Subgroup
Method
Condition
C2
2036
Test condition E.
TA = 25°; VCB =10 V dc; PT = 1.0 W.
C6
1026
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 as specified in table III herein. Electrical measurements (end-
points) shall be in accordance with table I, subgroup 2 herein. Delta requirements shall be in accordance with the
applicable test of table II herein.
4.5 Method 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.
4.5.2 Total control charge. The capacitor C, is adjusted to the minimum value which will produce a turn
off waveform similar to the one shown in figure 2, where C = C optimum. The optimum capacitance is obtained
when the "bumps" just disappear. The charge. on the capacitor which will be called QT is: QT = C optimum Vin.
4.5.3 Input capacitance. This test shall be conducted in accordance with method 3240 of MIL-STD-750, except
the output capacitor shall be omitted.
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