本规范涵盖了电子和通信设备用电力变压器、电力电感器、音频变压器、音频电感器、高功率脉冲变压器、充电电感器、饱和变压器和饱和电感器的一般要求。本规范涵盖重量为300磅或以下或具有50000伏或以下均方根（rms）测试电压额定值的变压器和电感器，以及峰值脉冲功率大于5瓦的大功率脉冲变压器。包含任何其他有源或无源组件的变压器和电感器组件不在本规范范围内。

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.