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MIL-PRF-19500/350G
9
4.4.2.3 Group B sample selection. Samples selected from group B inspection shall meet all of the following
requirements:
a.
For JAN, JANTX, and JANTXV samples shall be selected randomly from a minimum of three wafers
(or from each wafer in the lot) from each wafer lot. For JANS, samples shall be selected from each
inspection lot. See MIL-PRF-19500.
b.
Must be chosen from an inspection lot that has been submitted to and passed group A, subgroup 2,
conformance inspection. When the final lead finish is solder or any plating prone to oxidation at high
temperature, the samples for life test (subgroups B4 and B5 for JANS, and group B for JAN, JANTX,
and JANTXV) may be pulled prior to the application of final lead finish.
4.4.3 Group C inspection, Group C inspection shall be conducted in accordance with the conditions specified for
subgroup testing in table VII of MIL-PRF-19500, and in 4.4.3.1 (JANS) and 4.4.3.2 (JAN, JANTX, and JANTXV)
herein for group C testing. Electrical measurements (end-points) and delta requirements shall be in accordance with
group A, subgroup 2 and table III herein.
4.4.3.1 Group C inspection, table VII (JANS) of MIL-PRF-19500.
Subgroup
Method
Condition
C2
2036
Test condition E.
C6
1026
1,000 hours at VCB = 10 V dc; TJ = +150°C min. Power shall be applied to
the device to achieve T
J ≥ +150°C and a power dissipation of
P
D ≥ 75 percent of the rated PT (see 1.3).
4.4.3.2 Group C inspection, table VII (JAN, JANTX, and JANTXV) of MIL-PRF-19500.
Subgroup
Method
Condition
C2
2036
Test condition E.
C5
3131
RθJC (see 4.5.2).
C6
Not applicable.
4.4.3.3 Group C sample selection. Samples for subgroups in group C shall be chosen at random from any lot
containing the intended package type and lead finish procured to the same specification which is submitted to and
passes group A tests for conformance inspection. Testing of a subgroup using a single device type enclosed in the
intended package type shall be considered as complying with the requirements for that subgroup.
* 4.4.4 Group E inspection. Group E inspection shall be conducted in accordance with the conditions specified for
subgroup testing in appendix E, table IX of MIL-PRF-19500 and as specified herein. Electrical measurements
(endpoints) and delta measurements shall be in accordance with the applicable steps of table I, subgroup 2; except
ZθJX need not be performed, and table III herein.