电子设备用电位器 第3部分：分规范：旋转精密电位器

[中文适用范围]： IEC 60393-3:2023 适用于电子设备中使用的旋转精密电位器。本文件的目的是规定优选的额定值和特性，并从 IEC 60393-1 中进行选择、适当的质量评估程序、测试和测量方法，并给出此类电位计的一般性能要求。本文件给出了最低性能要求和测试严格程度。该版本相对于前一版本包括以下重大技术变化： a) 根据 ISO/IEC 指令第 2 部分：2018（第八版）修订了文件的所有部分，并与其他类似类型的文件保持一致； b) 文件结构的组织遵循 TC 40 中决定的新分规范结构； c) 修订评估级别EZ（零不合格）信息。 [外文原描述]： IEC 60393-3:2023 applies to rotary precision potentiometers for use in electronic equipment. The object of this document is to prescribe preferred ratings and characteristics and to select from IEC 60393-1, the appropriate quality assessment procedures, tests and measuring methods and to give general performance requirements for this type of potentiometer. This document gives the minimum performance requirements and test severities. This edition includes the following significant technical changes with respect to the previous edition: a) revised all parts of the document based on the ISO/IEC Directives, Part 2:2018 (eighth edition) and harmonized with other similar kinds of documents; b) the document structure has been organized to follow new sectional specification structure decided in TC 40; c) revision of the information on the assessment level EZ (zero nonconforming). The content of the corrigendum 1 (2025-04) has been included in this copy.