MIL-PRF-19500/116S
4.3.2 Power burn-in conditions. Power burn-in conditions are as follows (see 4.5.3): Method 1038 of
MIL-STD-750, condition B. VR = rated VRWM; f = 50 - 60 Hz; IO = 200 mA dc or IF = 200 mA dc minimum.
TA = +75°C maximum. The maximum current density of small die shall be submitted to the qualifying activity for
approval. Alternate mounting conditions shall be submitted to the qualifying activity for approval. With approval of
the qualifying activity and preparing activity, alternate burn-in criteria (hours, bias conditions, and mounting
conditions) may be used. A justification demonstrating equivalence is required. In addition, the manufacturing site's
burn-in data and performance history will be essential criteria for burn-in modification approval.
4.3.3 Thermal impedance measurements. The thermal impedance measurements shall be performed in
accordance with method 3101 or 4081 of MIL-STD-750, as applicable, using the guidelines in that method for
determining IH and IM. tMD shall be 70 µs maximum, tH shall be 10 ms maximum. See group E, subgroup 4 of table
II herein.
4.4 Conformance inspection. Conformance inspection shall be in accordance with MIL-PRF-19500 and as
specified herein.
4.4.1 Group A inspection. Group A inspection shall be conducted in accordance with table E-V of MIL-PRF-19500,
table I herein, and as specified herein. Electrical measurements (end-points) shall be in accordance with table I,
subgroup 2 herein.
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 4.4.2.1 herein. Electrical
measurements (end-points) shall be in accordance with table I, subgroup 2.
4.4.2.1 Group B inspection, table E-VIb (JAN, JANTX, and JANTXV) of MIL-PRF-19500. Leaded samples from
the same lot may be used in lieu of `UR' suffix sample for life test.
Subgroup Method
Conditions
0°C to +100°C, 10 cycles.
B2
1056
-55°C to +175°C, 45 cycles, including screening.
B2
1051
IF = 100 mA, axial tensile stress = 8 lbs, TA = +150°C; (not applicable to UR or UB
B2
2005
package).
B3
1027
V(pk) = rated VRWM; f = 50 - 60 Hz; IO = 200 mA dc minimum; adjust TA or IO to obtain a
minimum TJ of +150°C. (See 4.5.3.)
Decap analysis; scribe and break (not applicable for UB).
B4
2101
TA = +175°C.
B6
1032
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, and as follows. Electrical measurements (end-points) shall be in
accordance with table I, subgroup 2 herein.
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