29.100.10 - Magnetic components
ICS 29.100.10 Details
Magnetic components
Magnetische Bauteile
Composants magnetiques
Magnetne komponente
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IEC 63093-5:2025 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of EP-cores made of ferrite, the essential dimensions of coil formers to be used with them and the locations of their terminal pins on a 2,50 mm printed wiring grid in relation to the base outlines of the cores and the effective parameter values to be used in calculations involving them. It also gives guidelines on allowable limits of surface irregularities applicable to EP-cores. The specifications contained in this document are useful in negotiations between ferrite core suppliers and users about surface irregularities. The general considerations upon which the design of this range of cores is based are as given in Annex A.
This edition includes the following significant technical changes with respect to the previous edition:
a) revision of Table 2 according to IEC 60205:2016.
- Standard15 pagesEnglish languagesale 15% off
IEC 63093-2:2025 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of pot-cores made of ferrite, and the dimensional limits for coil formers to be used with them, as well as the effective parameter values to be used in calculations involving them. It also gives guidelines on the allowable limits of surface irregularities applicable to pot-cores in accordance with the relevant generic specification. The selection of core sizes and shapes 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. The general considerations upon which the design of this range of cores is based are given in Annex A.
This edition includes the following significant technical changes with respect to the previous edition:
a) revision of Table 4 and Table 5 according to IEC 60205:2016.
- Standard18 pagesEnglish languagesale 15% off
IEC 62024-1:2024 specifies the electrical characteristics and measuring methods for the nanohenry range chip inductor that is normally used in the high frequency (over 100 kHz) range.
This edition includes the following significant technical changes with respect to the previous edition:
a) addition of S parameter measurement;
b) addition of the inductance, Q-factor and impedance of an inductor which are measured by the reflection coefficient method with a network analyzer;
c) addition of the resonance frequency of an inductor which is measured by a two-port network analyzer;
d) addition of the mounting method for a surface mounting inductor with Pb-free solder.
- Standard2 pagesEnglish and French languagesale 15% off
IEC 63182-8:2025 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of U-cores made of metallic magnetic powder and gives guidelines on allowable limits of surface irregularities applicable to U-cores.
This document is a specification that is useful in the negotiations between magnetic powder core manufacturers and customers about surface irregularities.
The use of "derived" standards which give more detailed specifications of component parts while still permitting conformance with this document is discussed in Annex A.
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IEC 63182-7:2025 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of EER-cores made of metallic magnetic powder, the essential dimensions of coil formers to be used with them as well as the effective parameter values to be used in calculations involving them and gives guidelines on allowable limits of surface irregularities applicable to EER-cores.
This document is a specification that is useful in the negotiations between magnetic powder core manufacturers and customers about surface irregularities.
The use of “derived” standards which give more detailed specifications of component parts while still permitting conformance with this document is discussed in Annex A.
- Standard11 pagesEnglish languagesale 15% off
IEC 63182-6:2025 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of EQ-cores made of metallic magnetic powder, the essential dimensions of coil formers to be used with them as well as the effective parameter values to be used in calculations involving them and gives guidelines on allowable limits of surface irregularities applicable to EQ-cores.
This document is a specification that is useful in the negotiations between magnetic powder core manufacturers and customers about surface irregularities.
The use of "derived" standards which give more detailed specifications of component parts while still permitting conformance with this document is discussed in Annex A.
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IEC 63093-15:2025 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of U-cores made of ferrite, the essential dimensions of coil formers to be used with them, as well as the effective parameter values to be used in calculations involving them and gives guidelines on allowable limits of surface irregularities applicable to U-cores.
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 national standards, 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 use of “derived” standards which give more detailed specifications of component parts while still permitting conformance with this document is discussed in Annex A.
- Standard14 pagesEnglish languagesale 15% off
IEC 62024-2:2024 specifies the measuring methods of the rated DC limits for inductors as defined below. Standardized measuring methods for the determination of ratings enable users to accurately compare the current ratings given in various manufacturers' data books. This document is applicable to leaded and surface mount inductors with dimensions according to IEC 62025-1 and generally with rated current less than 125 A, although inductors with rated current greater than 125 A are available that fall within the dimension restrictions of this document (no larger than a 625 mm2 footprint). These inductors are typically used in DC‑to‑DC converters built on printed circuit boards (PCBs), for electronic and telecommunication equipment, and small size switching power supply units. The measuring methods are defined by the saturation and temperature rise limitations induced solely by direct current (DC).
This edition includes the following significant technical changes with respect to the previous edition:
a) extension of scope by increase of range of rated current from 22 A to 125 A;
b) extension of scope by increase of footprint limitation from 12 mm × 12 mm to 625 mm2;
c) addition of upper current limitation for Iclass B, Iclass C and Iclass D board to Table 1;
d) revised application examples for Table 1;
e) addition of wire size references for current ranges between 22 A ≤ I ≤ 125 A to Table 2;
f) addition of crimp terminal references to Table 2;
g) addition of thermal camera method.
- Standard77 pagesEnglish languagesale 15% off
IEC 62024-1:2024 specifies the electrical characteristics and measuring methods for the nanohenry range chip inductor that is normally used in the high frequency (over 100 kHz) range.
This edition includes the following significant technical changes with respect to the previous edition:
a) addition of S parameter measurement;
b) addition of the inductance, Q-factor and impedance of an inductor which are measured by the reflection coefficient method with a network analyzer;
c) addition of the resonance frequency of an inductor which is measured by a two-port network analyzer;
d) addition of the mounting method for a surface mounting inductor with Pb-free solder.
The content of the corrigendum 1 (2025-12) has been included in this copy.
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IEC 63093-13:2019 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.
This first edition cancels and replaces the second edition of IEC 62317-13 published in 2015 and the first edition of IEC 60424-8 published in 2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous editions of IEC 62317-13 and IEC 60424-8:
a) IEC 63093-13 integrates IEC 62317-13 and IEC 60424-8;
b) IEC 60424-8:2015, Table 1, has been included in Annex B as Table B.1.
- Standard2 pagesEnglish and French languagesale 15% off
IEC 60938-2-1:2023 is applicable to the drafting of detail specifications for fixed inductors for which safety tests are required for use in electronic equipment.
A blank detail specification is a supplementary document to the sectional specification and contains requirements for style, layout and minimum content of detail specifications. Detail specifications not complying with these requirements shall not be considered as being in accordance with IEC specifications nor shall they so be described.
This edition includes the following significant technical changes with respect to the previous edition:
a) it combines IEC 60938-2-1:1999 and IEC 60938-2-2:1999 into one Blank detail specification (BDS);
b) test schedule for quality conformance inspection is moved to an informative annex (Annex B).
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IEC 60938-2-1:2023 is applicable to the drafting of detail specifications for fixed inductors for which safety tests are required for use in electronic equipment. A blank detail specification is a supplementary document to the sectional specification and contains requirements for style, layout and minimum content of detail specifications. Detail specifications not complying with these requirements shall not be considered as being in accordance with IEC specifications nor shall they so be described. This edition includes the following significant technical changes with respect to the previous edition: a) it combines IEC 60938-2-1:1999 and IEC 60938-2-2:1999 into one Blank detail specification (BDS); b) test schedule for quality conformance inspection is moved to an informative annex (Annex B).
- Standard20 pagesEnglish languagesale 10% offe-Library read for1 day
This standard provides the test methods for the electrical and magnetic properties of magnetic powder cores used for inductive components in electronics equipment, switch-mode power supplies and power conversion equipment, and introduces measuring principles, scope of application and matters needing attention for each method.
The parameters used to characterize the magnetic powder cores include: inductance factor, effective permeability, complex relative permeability, temperature coefficient of permeability, frequency coefficient of permeability, DC bias characteristic, power loss, and quality factor. This standard is the basis for determining the characteristic parameters of magnetic powder cores.
- Standard57 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60938-2-1:2023 is applicable to the drafting of detail specifications for fixed inductors for which safety tests are required for use in electronic equipment.
A blank detail specification is a supplementary document to the sectional specification and contains requirements for style, layout and minimum content of detail specifications. Detail specifications not complying with these requirements shall not be considered as being in accordance with IEC specifications nor shall they so be described.
This edition includes the following significant technical changes with respect to the previous edition:
a) it combines IEC 60938-2-1:1999 and IEC 60938-2-2:1999 into one Blank detail specification (BDS);
b) test schedule for quality conformance inspection is moved to an informative annex (Annex B).
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IEC 62044-3:2023 is available as IEC 62044-3:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62044-3:2023 specifies measuring methods for power loss and amplitude permeability of magnetic cores forming the closed magnetic circuits intended for use at high excitation levels in inductors, chokes, transformers and similar devices for power electronics applications. This second edition cancels and replaces the first edition published in 2000. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: addition of Annex F and Annex G.
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IEC 62044-3:2023 specifies measuring methods for power loss and amplitude permeability of magnetic cores forming the closed magnetic circuits intended for use at high excitation levels in inductors, chokes, transformers and similar devices for power electronics applications. This second edition cancels and replaces the first edition published in 2000. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: addition of Annex F and Annex G.
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IEC 63300:2023 provides the test methods for the electrical and magnetic properties of magnetic powder cores used for inductive components in electronics equipment, switch-mode power supplies and power conversion equipment, and introduces measuring principles, scope of application and matters of importance for each method.
The parameters used to characterize the magnetic powder cores include: inductance factor, effective permeability, complex relative permeability, temperature coefficient of permeability, frequency coefficient of permeability, DC bias characteristic, power loss, and quality factor. This document is the basis for determining the characteristic parameters of magnetic powder cores.
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IEC 63182-5:2021 specifies the preferred range of the dimensions that are of importance for mechanical interchangeability and gives the guidelines on allowable limits of surface irregularities for cylinder-cores made of metallic magnetic powder.
This document is a specification useful in the negotiations between magnetic powder core suppliers and users about surface irregularities.
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IEC 63299:2022 specifies classification rules for metallic magnetic powder cores used in inductive components fulfilling the requirements of the electronics industries. This document addresses the following objectives for magnetic powder cores suppliers and users:
- cross-reference between core 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 core for each application;
- establishing uniform benchmarks for suppliers for performance in the new development of core material.
- Standard14 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 63299:2022 specifies classification rules for metallic magnetic powder cores used in inductive components fulfilling the requirements of the electronics industries. This document addresses the following objectives for magnetic powder cores suppliers and users:
- cross-reference between core 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 core for each application;
- establishing uniform benchmarks for suppliers for performance in the new development of core material.
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IEC 63093-10:2022 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of PM-cores made of magnetic oxides, the main dimensions for coil formers to be used with these cores and the locations of their pins on a modular printed wiring grid in relation to the base outlines of cores. It also specifies the effective parameter values to be used in calculations and gives guidelines on allowable limits of surface irregularities applicable to the PM-cores.
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IEC 63182-3:2021 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of E-cores made of metallic magnetic powder, the essential dimensions of coil formers to be used with them as well as the effective parameter values to be used in calculations involving them, and gives guidelines on allowable limits of surface irregularities applicable to E-cores.
This document is a specification useful in the negotiations between magnetic powder core suppliers and users about surface irregularities.
- Standard15 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 63182 specifies the preferred range of the dimensions that are important for mechanical interchangeability and the guidelines on allowable limits of surface irregularities for block-cores made of metallic magnetic powder.
This document is a specification about surface irregularities which is useful in the negotiations between suppliers and users of magnetic powder core.
The use of "derived" standards which give more detailed specifications of component parts while still permitting compliance with this standard is discussed in Annex A.
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IEC corrected version
- Corrigendum4 pagesEnglish and French languagesale 10% offe-Library read for1 day
IEC 63182-3:2021 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of E-cores made of metallic magnetic powder, the essential dimensions of coil formers to be used with them as well as the effective parameter values to be used in calculations involving them, and gives guidelines on allowable limits of surface irregularities applicable to E-cores.
This document is a specification useful in the negotiations between magnetic powder core suppliers and users about surface irregularities.
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IEC 63182-5:2021 specifies the preferred range of the dimensions that are of importance for mechanical interchangeability and gives the guidelines on allowable limits of surface irregularities for cylinder-cores made of metallic magnetic powder.
This document is a specification useful in the negotiations between magnetic powder core suppliers and users about surface irregularities.
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IEC 63182-4:2021 specifies the preferred range of the dimensions that are of importance for mechanical interchangeability and gives guidelines on allowable limits of surface irregularities for block-cores made of metallic magnetic powder.
This document is a specification about surface irregularities which is useful in the negotiations between suppliers and users of magnetic powder-cores.
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This part of IEC 60938 applies to fixed inductors designed for electromagnetic interference suppression, which will be connected to an AC mains or other supply with a nominal voltage not exceeding 1 000 V AC RMS or 1 500 V DC with a nominal frequency not exceeding 400 Hz. This sectional specification is restricted to fixed inductors for which safety tests are appropriate. This implies that inductors specified according to this specification will either be connected to mains supplies, when compliance with the mandatory tests of Annex A is necessary, or used in other circuit positions where the equipment specification prescribes that some or all of these safety tests are required. The object of this document is to prescribe standard requirements for safety tests, preferred ratings and characteristics, to select from IEC 60938-1 the appropriate methods of test and to give general performance requirements for suppression inductors.
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This International Standard applies to inductors designed for electromagnetic interference suppression intended for use within all kind of electric and electronic equipment. In this Generic Specification normative reference, terms and definitions are given. It also prescribes General requirements and the suitable test and measurement procedures for interference suppression inductors.
- Standard35 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60938-2:2021 applies to fixed inductors designed for electromagnetic interference suppression, which will be connected to an AC mains or other supply with a nominal voltage not exceeding 1 000 V AC RMS or 1 500 V DC with a nominal frequency not exceeding 400 Hz.
This sectional specification is restricted to fixed inductors for which safety tests are appropriate. This implies that inductors specified according to this specification will either be connected to mains supplies, when compliance with the mandatory tests of Annex A is necessary, or used in other circuit positions where the equipment specification prescribes that some or all of these safety tests are required.
The object of this document is to prescribe standard requirements for safety tests, preferred ratings and characteristics, to select from IEC 60938-1 the appropriate methods of test and to give general performance requirements for suppression inductors.
This edition includes the following significant technical changes with respect to the previous edition:
- the test plan for performance testing has been removed; mandatory safety tests and optional performance tests are listed in one test plan in Annex B;
- requirements for Thyristor-Chokes have been withdrawn;
- material requirements are harmonized with IEC 60939-3 and UL 60939-3;
- AC chokes up to 1 000 V and DC chokes up to 1 500 V are now in the Scope.
- Standard70 pagesEnglish and French languagesale 15% off
2021-06-11 - IEC Corrected version
- Corrigendum4 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 61534-21:2014 specifies the particular requirements and tests for PT systems intended for mounting on walls and/or ceiling. They may be installed flush or semi-flush, surface mounted, suspended or spaced away from the surface using fixing devices. This second edition cancels and replaces the first edition published in 2006 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Clauses 18 to 22 have been adapted to IEC 61534-1:2011 and include short-circuit test requirements;
- Additional classification, terms and requirements for wall powertrack (PT) systems mounted at the skirting level (close to the floor) position.
This publication is to be read in conjunction with IEC 61534-1:2011.
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IEC 60938-1:2021 applies to inductors designed for electromagnetic interference suppression intended for use within all kind of electric and electronic equipment.
In this generic specification, normative references and terms and definitions are given. It also prescribes general requirements and the suitable test and measurement procedures for interference suppression inductors. Annex B states special requirements for earth inductors.
This edition includes the following significant technical changes with respect to the previous edition:
a) material tests added;
b) improved readability and clear separation between test descriptions in the generic spec and requirements in the sectional specification;
c) creepage and clearance requirements are now defined in sectional specifications only;
d) AC testing for voltage test included.
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IEC 63093-2:2020 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of pot-cores made of ferrite, and the dimensional limits for coil formers to be used with them, as well as the effective parameter values to be used in calculations involving them. It also gives guidelines on the allowable limits of surface irregularities applicable to pot-cores in accordance with the relevant generic specification.
The selection of core sizes and shapes 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. See IEC 62317-1 for more detail concerning the philosophy of selecting core sizes to be included.
The general considerations upon which the design of this range of cores is based are given in Annex A.
This first edition cancels and replaces the first edition of IEC 62317-2 published in 2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition of IEC 62317-2:
a) addition of the limits of surface irregularities;
b) Table 4 and Table 5 are updated in accordance with IEC 60205:2016.
- Standard24 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62025-2:2019 is available as IEC 62025-2:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62025-2:2019 specifies a test method for the non-electrical characteristics of the surface mounted device (SMD) inductors to be used for electronic and telecommunication equipment. The object of this part of this document is to define methods for measuring mechanical performance only. As the reliability performances and specifications relative to non-electrical performances are defined in IEC 62211, detailed measuring methods for mechanical performance of reliability testing are defined in this document. This edition includes the following significant technical changes with respect to the previous edition:
- revision of Table 5;
- revision of normative references.
- Standard28 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 63093-3:2020 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of half pot-cores made of ferrite, intended to be used in inductive proximity switches. Half pot-cores for inductive proximity switches are also called PS-cores.
The selection of core sizes and shapes for this document is based on the philosophy of including those sizes and shapes which are industrial standards, either by inclusion in a national standard, or by broad-based use in industry.
This part of IEC 63093 can also be considered as a sectional specification useful in the negotiations between ferrite core manufacturers and customers about surface irregularities. It provides guidelines on the allowable limits of surface irregularities applicable to PS-cores in accordance with the relevant generic specification.
This first edition cancels and replaces the first edition of IEC 62323, published in 2005. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition of IEC 62323:
a) addition of the limits surface irregularities.
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IEC 62024-2:2020 is available as IEC 62024-2:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62024-2:2020 specifies the measuring methods of the rated direct current limits for small inductors. Standardized measuring methods for the determination of ratings enable users to accurately compare the current ratings given in various manufacturers’ data books. This document is applicable to leaded and surface mount inductors with dimensions according to IEC 62025-1 and generally with rated current less than 22 A, although inductors with rated current greater than 22 A are available that fall within the dimension restrictions of this document (no larger than a 12 mm x 12 mm footprint approximately). These inductors are typically used in DC-to-DC converters built on PCBs, for electric and telecommunication equipment, and small size switching power supply units. The measuring methods are defined by the saturation and temperature rise limitations induced solely by direct current. This edition includes the following significant technical changes with respect to the previous edition:
- addition of Table 2 and Figure 2 b).
- Standard20 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 61333:2019 specifies marking locations and a coding system of marking on ferrite cores. An alphanumerical marking printed or attached to cores reduces the risk of incorrect assembly, mixing of materials and/or mixing of gapped cores on an assembly line. The markings of the inductance factor AL value or of the gap length are especially important to avoid this kind of problem, and their coding system is specified in this document.
This edition includes the following significant technical changes with respect to the previous edition：
a) the title of the document was changed;
b) the scope of this document was expanded;
c) the marking position instructions for ring cores, planar cores, RM-cores, PQ-cores and pot-cores were added in Clause 4 with a few additional descriptions;
d) the four-digit-maximum limit of material identification code has been deleted in 5.2;
e) in Table 1, the unit of AL has been changed from "nH" to "nH/N2".
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IEC TR 63307:2020(E) provides guidelines on the methods for measuring the frequency characteristics of permeability and permittivity in the frequency range of 1 MHz to 6 GHz for a noise suppression sheet for each electromagnetic noise countermeasure.
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IEC 63182-2:2020 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of ring-cores (also called toroids) made of magnetic powder, the effective parameter values to be used in calculations involving them, and gives guidelines on allowable limits of surface irregularities applicable to coated ring-cores.
The selection of core sizes for this document is based on the philosophy of including those sizes which are industrial standards, meaning that they are in broad-based use within the industry. This document is considered as a sectional specification useful in the negotiations between magnetic powder core manufacturers and users about surface irregularities.
- Standard14 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 63182-2:2020 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of ring-cores (also called toroids) made of magnetic powder, the effective parameter values to be used in calculations involving them, and gives guidelines on allowable limits of surface irregularities applicable to coated ring-cores.
The selection of core sizes for this document is based on the philosophy of including those sizes which are industrial standards, meaning that they are in broad-based use within the industry. This document is considered as a sectional specification useful in the negotiations between magnetic powder core manufacturers and users about surface irregularities.
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IEC 60401-1:2020 is available as IEC 60401-1:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60401-1:2020 provides a nomenclature of the most frequent surface, bulk and shape irregularities relevant to cores made of soft ferrites (magnetic oxides). Most irregularities are graphically exemplified as visual aids. A general recommendation is also given in Annex A for a consistent scheme for specifying the exact location of the irregularity, combining a general name for the location with more detailed qualifiers of the specified location. This document can also be useful as a terminology reference when preparing technical documentation, irregularity inspection specifications, etc. This document also presents a method for defining the designation nomenclature for the major physical attributes of soft ferrite core shapes. The purpose of this document is to facilitate uniform usage of dimensional characters by manufacturers, specifiers, and users when describing core dimensions on drawings, in tables, and on catalogue specification sheets. This second edition cancels and replaces the first edition of IEC 60401-1 published in 2002 and the second edition of IEC 60401-2 published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous editions of IEC 60401-1 and IEC 60401-2:
- added the surface irregularity term “pores” in 4.3.1.6;
- added the surface irregularity term “scratch” in 4.3.6.3;
- removed the surface irregularity term “crater” in 4.1.5 of IEC 60401-1: 2002;
- removed the bulk irregularity terms “superpores” in 5.1, “inclusions” in 5.2, “internal stratification” in 5.3 and “internal crack” in 5.4 of IEC 60401-1: 2002;
- removed the contents related to “yoke ring cores” in 7.1.3 and 7.4 of IEC 60401-1:2002;
- replaced the surface irregularity term “stratification” with “lamination” in 4.3.4.7;
- replaced the location related terms “upper surface of back” with “bottom surface” and “lower surface of back” with “back surface” in Figure A.1;
- changed Clause 7 of IEC 60401-1:2002 into Annex A.
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IEC 63093-1:2020 specifies the dimensions and allowable limits of surface irregularities of ferrite cores.
It is intended that this document excludes ferrite cores which are specialty cores with limited use. Also, special cores which are only marginal variations upon standard cores are excluded.
IEC publishes electrical standards for families of ferrite cores, as well as this series of dimensional standards for families of ferrite cores. Modifications to the ferrite cores listed in one type of standard are reflected in the other type.
This document is considered as a general specification useful in the dialogue between ferrite core suppliers and users about surface irregularities.
This first edition cancels and replaces the second edition of IEC 60424-1 published in 2015 and the first edition of IEC 62317-1 published in 2007. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous editions of IEC 60424-1 and IEC 62317-1:
a) this document integrates IEC 60424-1 and IEC 62317-1.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 63093-9:2020 specifies the shapes and dimensions of ferrite cores for inductive components (transformers and chokes), whose the coil is typically made of multi-layer boards (or the coil is part of the motherboard), and the effective parameter values used in calculations. This document gives guidelines on allowable limits of surface irregularities applicable to planar-cores as well.
This document is considered as a sectional specification useful in the negotiation between ferrite core suppliers and users about surface irregularities.
This first edition cancels and replaces the first edition of IEC 60424-5 published in 2009 and first edition of IEC 62317-9 published in 2006 and its Amendment 1:2007. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous editions of IEC 60424-5 and IEC 62317-9:
a) IEC 63093-9 integrates IEC 60424-5 and IEC 62317-9;
b) Table 1, Table 2 and Table 3 in IEC 60424-5:2009 have been moved to Annex B;
c) some numbers are corrected in Table 4;
d) Table 6 is amended following IEC 60205.
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IEC 61631:2020 is available as IEC 61631:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61631:2020 specifies a test method for the mechanical strength of cores made of magnetic oxides. This test method is suitable for most of the E-cores, ETD-cores, I-cores and ring-cores but other core types such as U-cores could be tested according to a derived method agreed by the parties concerned. This document is also applicable to the mechanical strength measurement of magnetic powder cores. This edition includes the following significant technical changes with respect to the previous edition:
- the phrase: "This document is also applicable to the mechanical strength measurement of magnetic powder cores" has been added in the scope;
- IEC 61246 has been replaced by IEC 63093-8; EN 1002-2 has been replaced by ISO 7500-1; ISO 4677-1 and ISO 4677-2 have been withdrawn;
- dimensions D and F in Figure A.1 and Table A.1 have been changed to be consistent with Figure 1 of IEC 63093-8:2018;
- addition of the content of ring-cores test;
- addition of Annex B;
- the location of the jig is amended in Figure 3;
- in Figure 5, the roller bars are moved to the edge of the I-core, aligned with the core.
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IEC 63182-1:202 (E) specifies the dimensions of magnetic powder cores. This document also gives guidelines on the allowable limits of surface irregularities of magnetic powder cores. It is considered as a general specification useful in the dialogue between magnetic powder core manufacturers and users about surface irregularities.
It is intended that this document will include magnetic powder cores which are widely used and referenced in industry, either because they are included in national standards, or because they are seen to have broad-based use in industry. Where applicable, it is intended that the existing industrial name for each powder core will appear with the part within the IEC 63182 series.
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