IEC 63093的本部分规定了对首选系列PQ磁芯和由铁氧体制成的薄型PQI磁芯的机械互换性具有重要意义的尺寸，以及它们在2.54 mm印刷布线网格上的端子引脚相对于磁芯基本轮廓的位置。它还根据相关通用规范，对适用于PQ型芯的表面不规则性的允许极限提供了指导。 本文件中芯尺寸的选择基于以下理念:通过纳入国家标准，或通过在工业中广泛使用，将这些尺寸纳入工业标准。 本文件是铁氧体磁芯制造商和客户就表面不规则性进行谈判时有用的规范。 附录A给出了该系列堆芯设计所依据的一般考虑因素。 交叉引用:EN 60401-1IEC 60401-1IEC 60205IEC 60424-1EN 60424-1EN 60205购买本文件时可获得的所有现行修订均包含在购买本文件中。

This part of IEC 63093 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of PQ-cores and low-profile PQI-cores made of ferrite, and the locations of their terminal pins on a 2,54 mm printed wiring grid in relation to the base outlines of the cores. It also gives guidance on allowable limits of surface irregularities applicable to PQ-cores in accordance with the relevant generic specification. The selection of core sizes for this document is based on the philosophy of including those sizes which are industrial standards, either by inclusion in a national standard, or by broad-based use in industry. This document is a specification useful in the negotiations between ferrite core manufacturers and customers about surface irregularities. The general considerations that the design of this range of cores is based upon are given in Annex A.Cross References:EN 60401-1IEC 60401-1IEC 60205IEC 60424-1EN 60424-1EN 60205All current amendments available at time of purchase are included with the purchase of this document.