软磁铁氧体材料分类

[中文适用范围]： IEC 61332:2026 规定了用于电感元件（电感器和变压器）的软磁铁氧体材料的分类规则，这些材料需满足电子工业的相关要求。本文件针对磁铁氧体材料的供应商和用户，涉及以下内容： - 不同供应商材料之间的交叉参考； - 在比较多个供应商时，帮助用户理解产品目录中的技术数据； - 指导用户为每种应用选择最合适的材料； - 为与磁铁氧体相关的IEC标准设定命名规范； - 为制造商在新材料开发中建立统一的性能基准。 本文件中给出的数值是相关材料参数（特性）的典型值。材料规格向磁芯规格的直接转换并不总是容易或可行的。因此，每种详细的材料和磁芯规格应在供应商与用户之间达成一致。 与前一版本相比，本版进行了以下重大技术修改： a) 在表3中，分别在子类PW2和PW3中增加了PW2c和PW3c； b) 在表3中新增了BS列； c) 在表3中为更高的测量频率（≥ 500 kHz）增加了一种更小尺寸的测试磁芯（Ø 12.7 mm × Ø 7.5 mm × 7 mm）。 [外文原描述]： IEC 61332:2026 specifies classification rules for soft ferrite materials used in inductive components (inductors and transformers) fulfilling the requirements of the electronic industries. This document addresses the following issues for ferrite suppliers and users: - cross-reference between materials from multiple suppliers; - assistance to users in understanding the published technical data in catalogues when comparing multiple suppliers; - guidance to users in selecting the most applicable material for each application; - setting of nomenclature for IEC standards relating to ferrite; - establishing uniformed benchmarks for manufacturers for performance in new development of materials. The numerical values given in this document are typical values of the parameters (properties) of the related materials. Direct translation from the material specification into the core specification is not always easy or possible. Every detailed material and core specification should be agreed upon between suppliers and users. This edition includes the following significant technical changes with respect to the previous edition: a) added PW2c and PW3c in subclasses PW2 and PW3 respectively in Table 3; b) added the column of BS in Table 3; c) added a smaller size of the test core (Ø 12,7 mm × Ø 7,5 mm × 7 mm) for higher measuring frequency (≥ 500 kHz) in Table 3.