MIL-PRF-19500/585K
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. Electrical measurements (end-points) shall be in accordance with
table I, subgroup 2 herein. See table III for delta limits when applicable.
* 4.4.3.1 Group C inspection, table E-VII of MIL-PRF-19500.
Subgroup
Method
Condition
-0C to +100C, 10 cycles.
C2
1056
-55C to +175C, 25 cycles.
C2
1051
Axial devices - Tension: Test condition A; weight = 12 pounds; t = 30 seconds.
C2
2036
Lead fatigue: Test condition E; weight 2 pounds, t = 15 s.
NOTE: Lead fatigue is not applicable for U or US devices.
*
C2
2038
US devices Tension: Test condition A; weight = 12 pounds; t = 30 seconds.
See 4.5.5, +25C TA +35C (recorded before test is performed); RJL
C5
4081
(maximum) 38C/W; L = .375 inch (9.53 mm). For surface mount devices
(U and US version), RJEC 13C/W.
IO = IO (rated see col. 4 of 1.3) minimum; adjust IO to achieve TJ of +125C
C6
1027
minimum; apply VR = rated VRWM (see col. 2 of 1.3), f = 50 - 60 Hz (see 4.5.3.1).
For irradiated devices, include trr as an end-point measurement. Delta shall not
exceed 25 percent of initial reading.
4.4.4 Group E inspection. Group E inspection shall be conducted in accordance with the conditions specified for
subgroup testing in appendix E, table E-IX of MIL-PRF-19500 and as specified herein. Electrical measurements
(end-points) shall be in accordance with table I, subgroup 2 herein. See table III for delta limits when applicable.
4.5 Methods of inspection. Methods of inspection shall be as specified in the appropriate tables 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 Inspection conditions. Unless otherwise specified, all inspections shall be conducted at TA = room ambient
as defined in the general requirements of MIL-STD-750 (see 4.5).
4.5.3 Burn-in and life tests. These tests shall be conducted with a half-sine waveform of the specified peak voltage
impressed across the diode in the reverse direction followed by a half-sine waveform of the specified average
rectified current. The forward conduction angle of the rectified current shall be neither greater than 180 degrees, nor
less than 150 degrees.
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