MIL-PRF-19500/369H
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, JANTX and JANTXV) of MIL-PRF-19500, and as follows. Electrical
measurements (end-points) shall be in accordance with the applicable inspections of table I, subgroup 2 herein.
Subgroup
Method
Conditions
TJ = +187.5°C ±12.5°C, TA = +25°C ±5°C; VCB > 24 V dc.
B3
1027
TSTG = +200°C
B6
1032
B7
3053
Load condition C; (unclamped inductive load), (see safe operating area figure
herein) TC = +25°C, duty cycle ≤ 10 percent, R1 = 0.1 Ω, tr = tf ≤ 500 ns.
Test 1. tp = 10 ms, (vary to obtain IG), VBB2 = 1.5 V dc, RBB1 = 5 Ω,
L = 5 mH (two Super Electric Corporation type S16884 in parallel or
equivalent, dc resistance ≤ 0.1 Ω), VBB1 = 10 V, RBB2 = 100 Ω, VCC = 10 V dc,
IC = 3 A dc.
Test 2. tp = 10 ms, (vary to obtain IC), VBB2 = 1.5 V dc, RBB1 = 50 Ω,
L = 100 mH ( two Traid C48U in series: 80 mH winding and 20 mH winding or
equivalent, dc resistance ≤ 0.1 Ω), VBB1 = 10 V, RBB2 = 100 Ω,
VCC = 10 V dc, IC = 0.5 A dc.
Load condition B (see safe operating figure herein), TA = +25°C, L = 20 mH
B7
3053
(Traid C48U or equivalent, dc resistance ≤ 0.1 Ω), VCC = 50 V dc, IC = 3 A dc,
RBB1 = 5 Ω, VBB1 = 10 V dc, clamped voltage = 140 V dc, RBB2 = 100 Ω,
VBB2 = 1.5 V dc.
4.4.3 Group C inspection, Group C inspection shall be conducted in accordance with the test and 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 the applicable inspections of table I, subgroup 2 herein.
Subgroup
Method
Conditions
C2
1056
Test condition B.
C2
2036
Test condition A, weight - 3 pounds, 15 seconds.
Thermal resistance, see 4.3.2, RθJC = 3°C/W.
C5
3131
TJ = +187.5°C ±12.5°C, TA = +25°C ±5°C, VCB ≥ 24 V dc.
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 II herein. Electrical measurements (end-
points) shall be in accordance with table I, subgroup 2.
4.5 Methods of inspection. Conditions for pulse measurement shall be as specified in section 4 of MIL-STD-750.
4.5.1 Pulse measurements. Conditions for pulse measurement shall be as specified in section 4 of MIL-STD-750.
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