软铁氧体材料分类

[中文适用范围]： IEC 61332:2026 RLV包含正式的IEC国际标准及其红线版本。红线版本仅提供英文版本，能够帮助用户快速、便捷地比较正式IEC标准与其前一版之间的所有变更。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要求。本文件针对铁氧体材料的供应商和用户，解决了以下问题：- 多个供应商材料之间的交叉参考；- 帮助用户在比较多个供应商时理解目录中发布的技术数据；- 指导用户为每种应用选择最适用的材料；- 为与铁氧体相关的IEC标准设定术语；- 为制造商在材料新研发过程中设定统一的性能基准。本文件中给出的数值是相关材料参数（特性）的典型值。直接将材料规范翻译为芯材规范并不总是容易或可行。每种详细的材料和芯材规范都应在供应商和用户之间达成一致。与前一版相比，本版包含了以下重大技术变更：a) 在表3的PW2和PW3子类中分别增加了PW2c和PW3c；b) 在表3中增加了BS一栏；c) 在表3中增加了用于更高测量频率（≥500 kHz）的更小尺寸测试芯材（Ø 12.7 mm × Ø 7.5 mm × 7 mm）。 [外文原描述]： IEC 61332:2026 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. 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.