MIL-PRF-27 Transformers And Inductors \(Audio, Power, And High-Power Pulse\), General Specification ForThis specification covers the general requirements for power transformers, power inductors, audio transformers, audio inductors, high power pulse transformers, charging inductors, saturable transformers and saturable inductors for use in electronic and communication equipment. This specification covers transformers and inductors weighing 300 pounds or less or having root-mean-square \(rms\) test-voltage ratings 0f 50,000 volts or less, and also high-power pulse transformers where the peak pulse power is greater than 5 watts. Transformer and inductor assemblies incorporating any other active or passive components do not come within the scope of this specification.

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MIL-PRF-27G

4.6.1.4.3 Sampling procedure (subgroup 1)(T level only)

4.6.1.4.3.1 Product level T. Shall be subjected to 100 percent inspection as specified in table VII.

Rejects shall be removed from the lot. Lots having more than 5 percent or 1 unit rejects, whichever is greater shall not

be furnished on the contract or purchase order.

4.6.1.4.4 Sampling procedure (subgroup 2)(M level only)

4.6.1.4.4.1 Product level M. A sample of parts shall be randomly selected from each inspection lot in

accordance with table VIII. If one or more defects are found, the lot shall be rescreened and defects removed. After

screening and removal of defects, a new sample of parts shall be randomly selected in accordance with table VIII. If

one or more defects are found in the second sample, the lot shall be rejected and shall not be supplied to this

specification.

4.6.1.4.5 Disposition of sample units. Sample units that have been subjected to subgroup 1 or 2 of the group A

inspection may be delivered on the contract after successful completion of group B tests.

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