MIL-PRF-123D
TABLE XII. Group B inspection.
Inspection
Requirement
Test method
Sample size
Accept / reject
paragraph
paragraph
Subgroup 1
Thermal shock
Life test
Subgroup 2
Humidity, steady-state, low voltage
12
0
Subgroup 3
Voltage-temperature limits
12
1
Moisture resistance
4.5.3 Periodic inspection. Periodic inspection shall consist of group C inspection. Delivery of products that have
passed group A and group B inspections shall not be delayed pending the results of periodic inspection.
4.5.3.1 Group C inspection. Group C inspection shall consist of the tests specified in table XIII in order shown.
Samples shall be selected from lots that have passed group A and have been submitted for group B inspection.
Separate samples of nonleaded, dual-in-line package, axial, and radial leaded capacitors shall be selected every 2
months in accordance with table XIII.
4.5.3.2 Disposition of sample units. Sample units that have been subjected to groups B and C inspections shall
not be delivered on the contract. These samples shall be maintained by the manufacturer for a minimum of 10
years.
4.5.3.3 Noncompliance. If a sample fails to pass group C inspection, the manufacturer shall notify the qualifying
activity and the cognizant inspection activity of such failure and take corrective action on the materials or processes,
or both, as warranted, and on all units of product which can be corrected and which were manufactured under
essentially the same conditions, with essentially the same materials and processes, and which are considered
subject to the same failure. Acceptance and shipment of the product shall be discontinued until corrective action,
acceptable to the Government, has been taken. After the corrective action has been taken, group C inspection shall
be repeated on additional sample units (all inspection) or the inspection which the original sample failed, at the
option of the qualifying activity. Group A (and group B if applicable) inspection may be reinstituted; however, final
acceptance shall be withheld until the group C inspection has shown that corrective action was successful. In the
event of failure after reinspection, information concerning the failure and corrective action taken shall be furnished to
the cognizant inspection activity and the qualifying activity.
TABLE XIII. Group C inspection.
Inspection
Requirement
Test method
Number of units
Number of
paragraph
paragraph
to be inspected
defectives
permitted
Subgroup 1 (leaded devices)
Subgroup 1a:
Terminal strength
6
Subgroup 1b:
1
Solderability
6
Subgroup 1c:
6
Resistance to soldering heat
Resistance to solvents
Subgroup 2 (chip devices)
Subgroup 2a:
Terminal strength
6
1
Subgroup 2b:
Solderability
6
Subgroup 2c:
Resistance to soldering heat
6
18
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