电子设备用固定电容器第2部分 分规范 固定式 金属化聚对苯二甲酸乙二醇酯薄膜介质直流电容器

[中文适用范围]： 该文件适用于用于电子设备的固定电容器，采用金属化电极和聚对苯二甲酸乙二醇酯（PET）电介质，用于直流电路。这些电容器可能具有“自愈特性”，具体取决于使用条件。它们主要用于交流成分相对于额定电压较小的应用。涵盖两种性能等级的电容器：1级用于长寿命应用，2级用于一般应用。不适用于电磁干扰抑制电容器和表面贴装固定金属化聚酯薄膜电介质直流电容器，这两类由IEC 60384-14和IEC 60384-19分别覆盖。本文件的目的是规定首选额定值和特性，并从IEC 60384-1中选择适当的质量评估程序、测试和测量方法，并为此类电容器提供一般性能要求。参照本分段规范制定的详细规范中规定的测试严重程度和要求具有相等或更高的性能水平，因为不允许较低的性能水平。 [外文原描述]： IEC 60384-2:2021 applies to fixed capacitors for direct current, with metallized electrodes and polyethylene-terephthalate dielectric for use in electronic equipment. These capacitors have a possibility of "self-healing properties" depending on conditions of use. They are primarily intended for applications where the AC component is small with respect to the rated voltage. Two performance grades of capacitors are covered: grade 1 for long-life application and grade 2 for general application. Capacitors for electromagnetic interference suppression and surface mount fixed metallized polyethylene-terephthalate film dielectric DC capacitors are not included, but are covered by IEC 60384-14 and IEC 60384-19, respectively. The object of this document is to prescribe preferred ratings and characteristics and to select from IEC 60384-1 the appropriate quality assessment procedures, tests and measuring methods, and to give general performance requirements for this type of capacitor. Test severities and requirements prescribed in detail specifications referring to this sectional specification are of equal or higher performance level, because lower performance levels are not permitted. This edition includes the following significant technical changes with respect to the previous edition: a) revision of all parts of the document based on the ISO/IEC Directives, Part 2:2018 and harmonization with other similar kinds of documents; b) the document structure has been organized to follow the new sectional specification structure decided by TC 40; c) revision of tables and Clause 5 so as to prevent duplications and contradictions.