MIL-PRF-27F, PERFORMANCE SPECIFICATION: TRANSFORMERS AND INDUCTORS (AUDIO, POWER, AND HIGH-POWER PULSE), GENERAL SPECIFICATION FOR (25 JUN 1999) [SUPERSEDING MIL-T-27E]., This 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.

MIL-PRF-27F (NOTICE 1), PERFORMANCE SPECIFICATION: TRANSFORMERS AND INDUCTORS (AUDIO, POWER, AND HIGH-POWER PULSE), GENERAL SPECIFICATION FOR (05 DEC 2005)., MIL-PRF-27F, dated 25 February 2001, has been reviewed and determined to be valid for use in acquisition