MIL-PRF-19500/464G
* 4.3 Screening (JANTX and JANTXV levels). Screening shall be in accordance with table E-IV of
MIL-PRF-19500, and as specified herein. The following measurements shall be made in accordance with table I
herein. Devices that exceed the limits of table I herein shall not be acceptable.
Screen (see table E-IV
Measurement
of MIL-PRF-19500)
JANTX and JANTXV levels only
(1) 3c
Thermal impedance (see 4.3.2)
11
hFE2 and ICEX1
12
See 4.3.1
13
Subgroup 2 of table I herein;
ĆICEX1 = 100 percent of initial value or 1 µA dc, whichever is
greater; ĆhFE2 = 25 percent of initial value.
(1) Shall be performed anytime after temperature cycling, screen 3a; and does not need to be repeated in
screening requirements.
4.3.1 Power burn-in conditions. Power burn-in conditions are as follows: TJ = +187.5°C ±12.5°C; VCB ≥ 20 V dc,
TA ≤ +100°C.
4.3.2 Thermal impedance. The thermal impedance measurements shall be performed in accordance with
method 3131 of MIL-STD-750 using the guidelines in that method for determining IM, IH, tH, tSW, tMD and VH where
appropriate). See table II, group E, subgroup 4 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 MIL-PRF-19500, appendix
E table E-V, and table I herein. Electrical measurements (end-points) shall be in accordance with the 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 as follows. Electrical
measurements (end-points) shall be in accordance with the table I, subgroup 2 herein.
Method
Conditions
Subgroup
2,000 cycles, VCE ≥ 10 V dc, ĆTJ between cycles ≥ +100°C, adjust power or
B3
1037
current to achieve a ĆTJ = +100°C.
5
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