IEC 63093-10-2026 铁氧体磁芯 尺寸和表面不规则度限制指南 第10部分：PM磁芯及相关部件

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IEC 63093-10
Edition 2.0 2026-02
INTERNATIONAL
STANDARD
Ferrite cores - Guidelines on dimensions and the limits of surface irregularities -
Part 10: PM-cores and associated parts
IEC 63093-10:2026-02(en)
®
ICS 29.100.10
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IEC 63093-10:2026 © IEC 2026
1
CONTENTS
FOREWORD ........................................................................................................................... 3
1 Scope .............................................................................................................................. 5
2 Normative references ...................................................................................................... 5
3 Terms and definitions ...................................................................................................... 5
4 Primary dimensions ......................................................................................................... 5
4.1 General ................................................................................................................... 5
4.2 Dimensions of PM-cores ......................................................................................... 5
4.2.1 Principal dimensions ........................................................................................ 5
4.2.2 Effective parameter and Amin values ............................................................... 7
4.3 Main dimensions of coil formers .............................................................................. 7
4.4 Pin locations and base outlines ............................................................................... 8
4.5 Pin diameter ........................................................................................................... 8
5 Mounting hardware .......................................................................................................... 8
6 Limits of surface irregularities .......................................................................................... 9
6.1 General ................................................................................................................... 9
6.2 Examples of surface irregularities ........................................................................... 9
6.3 Chips and ragged edges ....................................................................................... 10
6.3.1 General ......................................................................................................... 10
6.3.2 Chips and ragged edges located on the mating surface ................................. 10
6.3.3 Chips and ragged edges located on other surfaces ........................................ 11
6.4 Cracks .................................................................................................................. 11
6.5 Pull-out ................................................................................................................. 12
6.6 Crystallites ............................................................................................................ 13
6.7 Flash .................................................................................................................... 13
6.8 Pores .................................................................................................................... 14
Annex A (informative) Derived standards ............................................................................. 15
Annex B (informative) Example of a gauge to check the coil former space dimensions
of PM‑cores meeting the IEC primary standard ..................................................................... 16
Annex C (informative) Recommended main dimensions for mounting hardware ................... 17
Annex D (informative) Limits of allowable chipping areas ..................................................... 19
Figure 1 – Main dimensions of PM-cores ................................................................................ 6
Figure 2 – Main dimensions of coil formers ............................................................................. 7
Figure 3 – Pin locations and base outlines viewed from the underside of the board ................ 9
Figure 4 – Examples of surface irregularities ........................................................................ 10
Figure 5 – Chips on mating surfaces ..................................................................................... 11
Figure 6 – Locations of cracks .............................................................................................. 12
Figure 7 – Location of pull-out .............................................................................................. 13
Figure 8 – Location of a crystallite ........................................................................................ 13
Figure 9 – Location of a flash ................................................................................................ 14
Figure 10 – Location of pore ................................................................................................. 14
Figure B.1 – Example of a gauge .......................................................................................... 16
Figure C.1 – Main dimensions of mounting hardware ............................................................ 17

标签： #部件 #PM #尺寸

摘要：

IEC 63093-10-2026《铁氧体磁芯 尺寸和表面不规则度限制指南 第10部分：PM磁芯及相关部件》规定了PM型铁氧体磁芯及相关部件的尺寸、公差和表面不规则度限值，为磁芯设计、制造、检验、采购与互换性提供统一技术依据。该标准有助于控制磁芯几何质量与外观缺陷，减少装配偏差，提升电感器、变压器等磁性元件的性能一致性和可靠性，适用于铁氧体磁芯生产、电子元器件制造、质量检测、来料检验及标准化管理，是PM磁芯选型、制造与验收的重要参考，也有利于供应链沟通和产品符合性评估。

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