MIL-PRF-19500/144R
4.4.3.1 Group C inspection, table E-VII of MIL-PRF-19500.
Subgroup
Method
Conditions
0°C to + 100°C, 10 cycles.
C2
1056
-55°C to + 175°C, 45 cycles including screening.
C2
1051
C2
2036
Tension - test condition A; weight = 10 pounds, t = 15 s; lead fatigue = condition E
(not applicable to `UR' and `UB' suffix types).
L = .375 inch (9.53 mm), RθJL = 250°C/W maximum; RθJEC = 100°C/W; (see
C5
4081
4.3.3), 22 devices, c = 0.
C6
1026
1,000 hours minimum, V(pk) = rated VRWM; f = 50 - 60 Hz; IO = 200 mA dc
4.4.4 Group E inspection. Group E inspection shall be conducted in accordance with the tests and conditions
specified for subgroup testing in table E-IX of MIL-PRF-19500, and table II herein. Electrical measurements (end-
points) shall be in accordance with table I, subgroup 2 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 measurements shall be as specified in section 4 of
4.5.2 Free air power burn-in and life tests. The use of a current limiting or ballast resistor is permitted provided
that each device under test still sees the full Pt (minimum) and that the minimum applied voltage, where applicable, is
4.5.3 Forward recovery voltage and time. Forward recovery shall be measured as the time interval between zero
time and the point where the pulse has decreased to 110 percent of the steady-state value of VF when
IF = 100 mA dc. The maximum rise time of the response detector shall be 1 ns.
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