MILPRF19500/370H
4.4 Conformance inspection. Conformance inspection shall be in accordance with MILPRF19500, and as
specified herein. If alternate screening is being performed in accordance with MILPRF19500, a sample of
screened devices shall be submitted to and pass the requirements of table I, subgroup 1 and 2. Table EVIB,
subgroup 1 of MILPRF19500 is not required to be performed again if group B has already been satisfied in
accordance with 4.4.2.
4.4.1 Group A inspection. Group A inspection shall be conducted in accordance with table EV of
MILPRF19500 and table I herein. Electrical measurements (end-points) shall be in accordance with the applicable
inspections of table I, subgroup 2 herein.
4.4.2 Group B inspection. Group B inspection shall be conducted in accordance with the test methods and
conditions specified for subgroup testing in table EVIB of MILPRF19500 and as follows. Electrical measurements
(end-points) shall be in accordance with the applicable inspections of table I, subgroup 2 herein. Delta
measurements shall be in accordance with the applicable step of 4.6 herein.
Subgroup
Method
Conditions
For solder die attach: 2,000 cycles; VCB = 10 - 30 V dc, TA ≤ +35°C.
B3
1037
or
For eutectic die attach: VCB = 10 to 30 V dc, TA ≤ +35°C, adjust PT to achieve
1026
TJ = +175°C minimum.
4.4.3 Group C inspection. Group C inspection shall be conducted in accordance with the tests and conditions
specified for subgroup testing in table EVII of MILPRF19500 and as follows herein. Electrical measurements
(end-points) shall be in accordance with table I, subgroup 2 herein. Delta requirements shall be in accordance with
the applicable step of 4.6 herein.
Subgroup
Method
Conditions
C2
2036
Test condition A, weight = 10 pounds ±10 ounce (4.5Kg ±0.28Kg), t = 15 s.
C5
3131
See 3.4.1, RθJC = 1.5°C/W.
For solder die attach: 6,000 cycles; VCB = 10 to 30 V dc, TA ≤ +35°C.
C6
1037
or
For eutectic die attach: VCB = 10 to 30 V dc, TA ≤ +35°C, adjust PT to achieve
1026
TJ = +175°C minimum.
4.4.4 Group E inspection. Group E inspection shall be conducted in accordance with the tests and conditions
specified for subgroup testing in appendix E, table EIX of MILPRF19500 and as specified in table II herein.
Electrical measurements (end-points) shall be in accordance with table I, subgroup 2 herein. Delta requirements
shall be in accordance with the applicable step of 4.6 herein.
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