MIL-PRF-19500/582B
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a.
Qualification inspection (see 4.2).
b.
Screening (see 4.3).
c.
Conformance inspection (see 4.4 and tables I and II).
4.2 Qualification inspection. Qualification inspection shall be in accordance with MIL-PRF-19500 and herein.
* 4.2.1 Group E qualification. Group E inspection shall be performed for qualification or re-qualification only. In
case qualification was awarded to a prior revision of the specification sheet that did not request the performance of
table III tests, the tests specified in table III herein that were not performed in the prior revision shall be performed on
the first inspection lot of this revision to maintain qualification.
* 4.3 Screening (JANTX, and JANTXV levels only). 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
(1) 3c
Method 3131 (see 4.3.2)
ICBO, and hFE2
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12
See 4.3.1
13
Subgroup 2 of table I herein
ICBO = 100 percent of initial value, or 10
nA dc whichever is greater;
hFE2 = 15 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: VCB 20 V dc; PT 1.0 W at TA = 30C
5C. NOTE: No heat sink or forced air cooling on the devices shall be permitted.
* 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 (and VH where appropriate).
See table III, group E, subgroup 4 herein. Measurement delay time (tMD) = 60 s max.
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