标准摘要
[中文适用范围]： 包括涉及以下类别的字母符号：电压参考和稳压二极管、可变电容二极管、混频二极管、双极晶体管、场效应晶体管、数字集成电路、模拟集成电路。 [外文原描述]： Includes letter symbols concerning the categories: voltage reference and voltage regulator diodes, variable capacitance diodes, mixer diodes, bipolar transistors, field-effect transistors, digital integrated circuits, analogue integrated circuits.
英文名称First supplement - Letter symbols for semiconductor devices and integrated microcircuits