标准摘要
[中文适用范围]： 补充了代表附录 H 的 IEC 191-1，规定了基础图纸上端子的尺寸和位置的规则，并提供了两个详细示例。 [外文原描述]： Deals with new rules to be used for specifying lead dimensions and positions on a circular base drawing.
英文名称Mechanical standardization of semiconductor devices - Part 1: Preparation of drawings of semiconductor devices - Third supplement