GB/T 44069.1-2026 铁氧体磁心 尺寸和表面缺陷极限导则 第1部分：总规范

ICS29.100.10

CCSL19

中华人民共和国国家标准

GB/T44069.1—2026

代替GB/T9634.1—2002，GB/T36103.1—2018

铁氧体磁心尺寸和表面缺陷极限导则

第1部分：总规范

Ferritecores—Guidelinesondimensionsandthelimitsofsurface

irregularities—Part1：Generalspecification

（IEC63093⁃1：2020，MOD）

2026⁃09⁃28发布2027⁃04⁃01实施

国家市场监督管理总局

国家标准化管理委员会发布

GB/T44069.1—2026

目次

前言··························································································································Ⅲ

引言··························································································································Ⅳ

1范围·······················································································································1

2规范性引用文件········································································································1

3术语和定义··············································································································1

4尺寸描述·················································································································2

5磁心零件的结构与表面的位置······················································································2

5.1概述·················································································································2

5.2配合面··············································································································3

5.3中心柱··············································································································3

5.4外腿·················································································································3

5.5背、底面和背面····································································································3

5.6线槽区··············································································································3

5.7引线区··············································································································3

5.8夹具槽区···········································································································3

6目测缺陷的参考面积和长度·························································································3

7表面缺陷示例···········································································································5

8表面缺陷的极限········································································································5

8.1通则·················································································································5

8.2掉块和不规则边缘·······························································································5

8.3裂纹·················································································································5

8.4飞边·················································································································5

8.5粘模·················································································································6

8.6气孔·················································································································6

8.7晶斑·················································································································6

参考文献·····················································································································7

图1磁心主要部位和表面的位置（以RM型磁心为例）··························································2

图2表面缺陷示例图····································································································5

表1目测缺陷的参考面积和长度·····················································································4

Ⅰ

GB/T44069.1—2026

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规定

起草。

本文件是GB/T44069《铁氧体磁心尺寸和表面缺陷极限导则》的第1部分。GB/T44069已经

发布了以下部分：

——第1部分：总规范；

——第4部分：RM型磁心；

——第5部分：电感器和变压器用EP型磁心及其附件；

——第6部分：电源用ETD型磁心；

——第9部分：平面磁心；

——第10部分：PM型磁心及其附件；

——第12部分：环形磁心；

——第13部分：PQ型磁心；

——第14部分：EFD型磁心。

本文件代替GB/T9634.1—2002《铁氧体磁心表面缺陷极限导则第1部分：总则》和GB/T36103.1—

2018《铁氧体磁心尺寸第1部分：通用规范》。本文件以GB/T9634.1—2002为主，整合了GB/T36103.1—

2018的内容。与GB/T9634.1—2002相比，除结构调整和编辑性改动外，主要技术变化如下：

——增加了气孔表面缺陷的相关内容（见3.5和8.6）；

——增加了晶斑表面缺陷的相关内容（见3.6和8.7）。

本文件修改采用IEC63093⁃1：2020《铁氧体磁心尺寸和表面缺陷极限导则第1部分：总规范》。

本文件与IEC63093⁃1：2020的技术差异及其原因如下：

——用规范性引用的IEC60401⁃1替换了IEC60401⁃2，因IEC60401⁃2已被整合修订入IEC60401⁃1。

本文件做了下列编辑性改动：

——用资料性引用的GB/T44069（所有部分）替换了IEC63093（所有部分）（见8.1）；

——删除了资料性附录A。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由中华人民共和国工业和信息化部提出。

本文件由全国磁性元件与铁氧体材料标准化技术委员会（SAC/TC89）归口。

本文件起草单位：中国电子科技集团公司第九研究所、中国电子技术标准化研究院、北京智芯传感

科技有限公司。

本文件主要起草人：王慧丽、崔莹、杨陆、夏凡、刘力克、张芦、张雅婷、高晓琴。

本文件及其所代替文件的历次版本发布情况为：

——GB/T9634.1，1988年首次发布为GB/T9634—1988，2002年第一次修订；

——GB/T36103.1，2018年首次发布为GB/T36103.1—2018；

——本次为第二次修订，整合纳入GB/T36103.1—2018的内容，标准编号调整为GB/T44069.1—

2026。

Ⅲ

GB/T44069.1—2026

引言

由于制造方法和产品的物理特性，铁氧体磁心会出现一定程度的物理缺陷，诸如掉块、不规则边

缘、裂纹、飞边和粘模。这些表面缺陷的容许程度主要依据缺陷类型、位置与尺寸和磁心的结构。因

此，为了确定给定铁氧体磁心系列（如RM型磁心、罐形磁心、U型磁心和环形磁心）的表面缺陷极限，

每种磁心制定一个特定的规范，详细列出各类缺陷的容许范围。

GB/T44069《铁氧体磁心尺寸和表面缺陷极限导则》拟由以下部分构成。

——第1部分：总规范。目的在于确立铁氧体磁心的尺寸描述和表面缺陷限定遵循的总则。

——第2部分：通信、电源和滤波器用罐形磁心。目的在于确立罐形磁心的尺寸和表面缺陷容许

极限。

——第3部分：电感接近开关用铁氧体半罐形磁心。目的在于确立半罐形磁心的尺寸和表面缺陷

容许极限。

——第4部分：RM型磁心。目的在于确立RM型磁心的尺寸和表面缺陷容许极限。

——第5部分：电感器和变压器用EP型磁心及其附件。目的在于确立EP型磁心的尺寸和表面

缺陷容许极限。

——第6部分：电源用ETD型磁心。目的在于确立ETD型磁心的尺寸和表面缺陷容许极限。

——第7部分：EER型磁心。目的在于确立EER型磁心的尺寸和表面缺陷容许极限。

——第8部分：E型磁心。目的在于确立E型磁心的尺寸和表面缺陷容许极限。

——第9部分：平面磁心。目的在于确立平面磁心的尺寸和表面缺陷容许极限。

——第10部分：PM型磁心及其附件。目的在于确立PM型磁心的尺寸和表面缺陷容许极限。

——第11部分：电源用EC型磁心。目的在于确立EC型磁心的尺寸和表面缺陷容许极限。

——第12部分：环形磁心。目的在于确立环形磁心的尺寸和表面缺陷容许极限。

——第13部分：PQ型磁心。目的在于确立PQ型磁心的尺寸和表面缺陷容许极限。

——第14部分：EFD型磁心。目的在于确立EFD型磁心的尺寸和表面缺陷容许极限。

——第15部分：U型磁心。目的在于确立U型磁心的尺寸和表面缺陷容许极限。

——第16部分：SQ型磁心。目的在于确立SQ型磁心的尺寸和表面缺陷容许极限。

——第17部分：巴伦磁心。目的在于确立巴伦磁心的尺寸和表面缺陷容许极限。

磁心的所有表面都是清洁的，没有松散的铁氧体颗粒或任何其他异物。这对于有良好接触的配合

面更重要。如果不影响磁心的正常性能，可能有污斑、变色、表面裂纹或晶斑存在。本文件描述的是不

使用任何放大设备也能检测到的缺陷。

表面缺陷的极限是为了考核磁心外观而设定的，而不是为了考核磁性能。表面缺陷不会实质性影

响磁心的功能，也不会影响可靠性。表面缺陷用来评估绕线磁体的可靠性，不是评估磁心。有关铁氧

体磁心和用磁心组装的器件的可靠性的更多详细信息，参见IEC60401⁃3。

Ⅳ

GB/T44069.1—2026

铁氧体磁心尺寸和表面缺陷极限导则

第1部分：总规范

1范围

本文件规定了铁氧体磁心的尺寸和表面缺陷的容许极限。

本文件包括了在工业中广泛使用和定型的铁氧体磁心。这些铁氧体磁心要么包括在国家标准中，

要么具有广泛的工业应用基础。在适用情况下，每个标准中的现行工业名称会出现在本系列标准的相

应部分。

本文件不包括限定使用的专用铁氧体磁心，也不包括与标准磁心略有不同的专用磁心。

只有一个或两个制造商生产的铁氧体磁心通常被认为是专用产品，而不适合作为本系列中的标准

磁心。由三个或更多相互竞争的制造商生产的铁氧体磁心通常被认为是本系列的候选产品。

IEC出版了铁氧体磁心系列标准，包括铁氧体磁心系列的尺寸标准。对本文件中列出的铁氧体磁

心的修改也将在其他类相应标准中体现。

本文件在磁心制造商和用户之间有关表面缺陷的协商中作为总规范使用。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于

本文件。

IEC60401⁃1软磁铁氧体磁心术语和定义第1部分：物理缺陷术语和尺寸标注（Termsandno⁃

menclatureforcoresmadeofmagneticallysoftferrites—Part1：Termsusedforphysicalirregularitiesand

referenceofdimensions）

注1：GB/T28864.1—2012软磁铁氧体磁心术语定义第1部分：物理缺陷术语（IEC60401⁃1：2002，IDT）

注2：GB/T28864.2—2012软磁铁氧体磁心术语定义第2部分：尺寸标注（IEC60401⁃2：2003，IDT）

3术语和定义

IEC60401⁃1界定的以及下列术语和定义适用于本文件。

ISO和IEC维护的用于标准化的术语数据库网址如下：

——ISO在线浏览平台：http：///obp；

——IEC电工百科：http：///。

3.1

掉块和不规则边缘chipsandraggededges

由于机械冲击造成的表面材料缺失的区域。

3.2

裂纹crack

一种深入磁心且宽度远小于长度的表面缺陷。

1