MIL-PRF-19500/404C
4.4.2.1 Group B inspection, table VIb (JAN, JANTX, and JANTXV) of MIL-PRF-19500.
Subgroup
Method
Condition
VRWM = 0 V, IFSM = (see 1.3) ten surges, 8.3 ms I0 = I0 rated at +75°C
2
4066
3
1036
Intermittent life test (Up to 6 modules may be series connected and horizontally mounted in
a dielectric fluid such as 3M's FC40 or equivalent, or oil in accordance with VV-I-530,
controlled to maintain a case temperature of 75°C minimum.) Time on = 50 min, time off =
10 min, duration = 340 cycles (340 hours). (For determining sample size, each module shall
be considered a test unit with resistive load.)
I0 during time on:
1N5597 - 1 A dc
1N5600 - 2 A dc
1N5603 - 5 A dc
4
---
Not applicable
5
---
Not applicable
TA = +150°C
6
1031
4.4.3 Group C inspection. Group C inspection shall be conducted in accordance with the conditions specified for subgroup testing in
table VII of MIL-PRF-19500, and as follows. Electrical measurements (end-points) shall be in accordance with table I, group A, subgroup
2 herein.
Subgroup
Method
Condition
2
2036
Test condition A, t = 3 s; torque for 1N5597 & 1N5600 = 18 pound-inches; torque for
1N5603 = 36 pound-inches.
3
---
Not applicable
4
1041
Reject criteria, a device with illegible marking, evidence of flaking or pitting or corrosion that
will interfere with the application of the device will be considered a failure.
5
---
Not applicable
6
1036
Intermittent life test (Up to 6 modules may be series connected and horizontally mounted in
a dielectric fluid such as 3 M's FC40 or equivalent, or oil in accordance with VV-I-530,
controlled to maintain a case temperature of 75°C minimum.) Time on = 50 minutes, time
off = 10 minutes, duration 1,000 cycles (1,000 hours). (For determining sample size, each
module shall be considered a test unit with resistive load.) I0 during time on:
1N5597 - 1 A dc
1N5600 - 2 A dc
1N5603 - 5 A dc
4.4.4 Group E inspection. Group E inspection shall be conducted in accordance with table VI herein.
4.5 Methods 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 Reverse recovery time. Reverse recovery time shall be measured in a circuit and with equipment as shown on figure 2. The
pulse generator shall have a pulse repetition frequency of 1 kHz maximum, and a pulse width of 10 microseconds minimum. Recovery
conditions: 0.5 ampere forward current to 1.0 ampere reverse current. Recovery time measured from the time the rectifier begins to
conduct in the reverse direction (crosses I = 0) until the reverse current recovers to -0.25 ampere.
6
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