MIL-PRF-19500/297H
3.5 Marking. Marking shall be in accordance with MIL-PRF-19500.
3.5.1 Polarity. The polarity shall be indicated by a graphic symbol with the arrow pointing toward the negative end
for forward bias. Standard polarity devices are cathode case. Reverse polarity devices are anode case with an R
following the last digit in the type number.
3.6 Electrical performance characteristics. Unless otherwise specified herein, the electrical performance
characteristics are as specified in 1.3 and table I herein.
3.7 Electrical test requirements. The electrical test requirements shall be the subgroups specified in table I herein.
3.8 Workmanship. Semiconductor devices shall be processed in such a manner as to be uniform in quality and
shall be free from other defects that will affect life, serviceability, or appearance.
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, II, and III).
4.2 Qualification inspection. Qualification inspection shall be in accordance with MIL-PRF-19500, and as specified
herein. Tests in either polarity shall be sufficient to obtain qualification approval of both polarities.
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 II tests, the tests specified in table II herein that were not performed in the prior revision shall be performed on
the first inspection lot of this revision to maintain qualification.
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