MIL-PRF-19500/424B
* 4.4.2 Group B inspection. Group B inspection shall be conducted in accordance with the conditions specified for
subgroup testing in appendix E, table E-VI (JAN, JANTX, and JANTXV) of MIL-PRF-19500. Electrical measurements
(end-points) shall be in accordance with table I, group A, subgroup 2 herein; except, ZθJX need not to be performed.
See subgroup conditions for delta limits when applicable.
* 4.4.2.1 Group B inspection, appendix E, table E-VIb (JAN, JANTX and JANTXV of MIL-PRF-19500.
Subgroup
Method
Condition
B2
4066
Required on each sublot; IFSM = 80 A(pk); 10 surges of 8.3 ms each at 1
minute intervals, superimposed on IO = 3 A dc; VR = rated VRWM (see 1.3).
TA = 25°C.
B3
1027
IO = 3 A dc; TA = room ambient as defined in the general requirements of MIL-
STD-750, (see 4.5); f = 50-60 Hz; VR = rated VRWM (see 1.3 and 4.5.3).
Delta limits: ĆIR1 ≤ 100 percent of initial value or 250 nA dc, whichever is
greater.
B5
Not applicable.
TA = +175°C, t = 340 hours.
B6
1032
* 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) shall be in
accordance with table I, group A, subgroup 2 herein; except, ZθJX need not to be performed. See subgroup
conditions for delta limits when applicable.
Subgroup
Method
Condition
C2
2036
Tension: Test condition A; weight = 4 pounds; t = 30 seconds.
Lead fatigue: Test condition E.
C6
1026
IO = 3 A dc; TA = room ambient as defined in the general requirements of MIL-
STD-750, (see 4.5); f = 50-60 Hz; VR = rated VRWM (see 1.3 and 4.5.3).
Delta limits: ĆVF ≤ ±0.1 V dc; ĆIR1 ≤ 100 percent of initial value or 250 nA dc,
whichever is greater.
4.5 Methods of inspection. Methods of inspection shall be as specified in the appropriate tables as follows.
4.5.1 Scope-display evaluation. The reverse breakdown characteristics shall be viewed on an oscilloscope with
display calibration factors of 5 to 20 µA per division and 50 to 100 V per division. Reverse current over the knee shall
be at 50 µA. Each device shall exhibit a sharp knee characteristic and any discontinuity or dynamic instability of the
trace shall be cause for rejection. See method 4023 of MIL-STD-750.
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