MIL-STD-1285-SUP-2 Marking of Electrical and Electronic PartsThis standard establishes requirements for the physical marking of electrical and electronic parts. This standard should be implemented by incorporating suitable requirements directly in acquisition documents.

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MIL-STD-1285D

APPENDIX I

TABLE I-I. Rating marking requirements.

Part

Primary

Secondary

Power, vibrator, inverter, and line input transformers

Inductors

Single-frequency audio inductors or transformers (except audio oscillator)

Audio oscillator transformer

Pulse transformers (except pulse oscillator)

Pulse oscillator transformer

Saturable-core inductor and transformer

Rated voltage, frequency, and working voltage.

Rated inductance, voltage, dc current,

dc resistance, frequency and working voltage.

Source impedance,

dc current, frequency range, power level in watts, and working voltage.

DC current, frequency range, power level, and working voltage.

Pulse width and duty cycle, pulse, polarity, source impedance, operating voltage, and current.

DC resistance, turns ratio, operating voltage and current, repetition rate, duty cycle, and working voltage.

Maximum control current, impedance, impedance variation, rated

voltages, frequency, and working voltage.

Rated voltage(s) and current(s)

Not applicable

Load impedance and working voltage

DC current

Load impedance and current

Not applicable

I.3.2 Part identification marking.

I.3.2.1 Transfer marking. Marking of transformers shall conform to method I. I.3.2.2 Coils marking. Marking on coils shall conform to method I or II.