This part of IEC 63182 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, mea...
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This document describes a number of tests for use in determining the significant parameters
and performance characteristics of transformers and inductors for use in electronics and
telecommunication equipment. These test methods are designed primarily for transformers
and inductors used in all types of electronics applications that can be involved in any
specification for such components. Even though these tests can be useful to the other types
of transformers used in power distribution app...
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This part of IEC 63093 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 ...
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    • Standard
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This part of IEC 63093 specifies the dimensions and allowable limits of surface irregularities
of ferrite cores.
It is intended that this document includes ferrite 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 standard part appears with the part within this series.
It is intended that this...
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This part of IEC 60401 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...
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This document 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 ringcores
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.

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    • Standard
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This part of IEC 63182 specifies the dimensions of magnetic powder cores.
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.
This document also gives guidelines on th...
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This part of IEC 63093 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of E-cores made of ferrite and the essential
dimensions of coil formers to be used with them, as well the effective parameter values to be
used in calculations involving them. It also gives guidelines on allowable limits of surface
irregularities applicable to E-cores.
The specifications contained in this document are useful in negotiations between ferrite core
man...
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    • Standard
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This part of IEC 63093 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of EFD-cores, the essential dimensions of coil formers
to be used with them, and the effective parameter values to be used in calculations involving
them. It also gives guidance on the allowable limits of surface irregularities applicable to EFDcores
in accordance with the relevant generic specification.
The selection of core sizes for this document is based on the ...
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This part of IEC 63093 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of EC-cores made of ferrite and the essential
dimensions of coil formers to be used with them, as well the effective parameter values to be
used in calculations involving them. It also gives guidelines on allowable limits of surface
irregularities applicable to EC-cores.
The specifications contained in this document are useful in negotiations between ferrite core
m...
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This part of IEC 63093 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.
The selection of core sizes for this document...
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This part of IEC 63093 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of ETD-cores made of ferrite and the essential
dimensions of coil formers to be used with them, as well the effective parameter values to be
used in calculations involving them. It also gives guidelines on allowable limits of surface
irregularities applicable to ETD-cores.
The specifications contained in this document are useful in negotiations between ferrite core
...
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This part of IEC 63093 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 applicab...
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This part of IEC 63093 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of ring-cores, also called toroid 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 ring-cores.
This document is a specification useful in the negotiations between ferrite core manufacturers
and users about surface irregularities.

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This part of IEC 63093 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of RM-cores and low-profile RM-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 RM-cores in accordance with the relevant generic specification.
The selection of core sizes for this document ...
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IEC - Corrected version

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This part of IEC 62024 specifies electrical characteristics and measuring methods for the nanohenry range chip inductor that is normally used in high frequency (over 100 kHz) range.

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This part of IEC 63093 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of EER-cores made of ferrite, the essential
dimensions of coil formers to be used with them as well 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 useful in the negotiations between ferrite core manufacturers
and cu...
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This document is applicable to inductive components (chokes and transformers) based on magnetically soft materials. These are components based especially on laminated iron sheets, iron powder materials (including alloys), as well as ferrites and amorphous or crystalline metal band cores.
Winding assemblies mean wire winding assemblies as well as multilayer and stacking technologies of planar technology including coils based on non-magnetic materials. Discrete type components and the different t...
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This International Standard lays down uniform rules for the calculation of the effective parameters of closed circuits of ferromagnetic material.

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This document specifies marking codes for fixed inductors.
The colour code specified in Clause 3 gives a colour coding for fixed inductors. It is intended for
use with the values of the E3 to E24 series as specified in IEC 60063.
The code specified in Clause 4 gives a system for marking inductance values by means of digits
and letters.
The code specified in Clause 5 gives a system for marking the tolerance on inductance values by
means of letters.
The code specified in Clause 6 gives a sy...
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This part of IEC 62317 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of ring-cores, also called toroid cores, and the effective
parameter values to be used in calculations involving them.
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 industry. See
IEC 62317-1 for more detail concerning the philosophy of ...
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This document 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 customers in understanding the published technical data in catalogues when
comparing multiple suppliers;
• guidance to customers in selecting the most ...
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This part of IEC 60401 gives guidelines for a uniform method of presentation for the
properties of magnetically soft ferrite materials and measuring conditions under which they
should be determined. It is intended for use in manufacturers' catalogues of transformer and
inductor cores, in order to aid the comparability of such data. Additional guidance is given for
users and manufacturers concerning testing and specification of reliability for ferrite cores and
for devices using ferrite core...
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This part of IEC 62317 specifies the dimensions that are of importance for mechanical
interchangeability for ETD-cores made of ferrite, the essential dimensions of coil formers to
be used with them, and the effective parameter values to be used in calculations involving
them.
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, which also
contains an example of a derived stand...
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This part of IEC 60424 gives guidance on allowable limits of surface irregularities applicable
to ring-cores in accordance with the relevant generic specification defined in IEC 60424-1.
This standard is considered as a sectional specification useful in the negotiations between
ferrite core manufacturers and customers about surface irregularities.

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    • Standard
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This part of IEC 60424 gives guidelines on the allowable limits of surface irregularities of ferrite
cores.
This standard should be considered as a general specification useful in the dialogue between
ferrite core manufacturers and customers about surface irregularities.

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This part of IEC 60424 provides guidelines on the allowable limits of surface irregularities
applicable to RM-cores in accordance with the relevant generic specification.
This standard should be considered as a sectional specification useful in the negotiations
between ferrite core manufacturers and customers about surface irregularities. Normative
reference

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This part of IEC 60424 gives guidelines on allowable limits of surface irregularities applicable
to ETD-cores, EER-cores, EC-cores and E-cores in accordance with the relevant general
specification.
This standard is a specification useful in the negotiations between ferrite core manufacturers
and customers about surface irregularities.

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    • Standard
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This part of IEC 62317 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of EC-cores, the essential dimensions of coil formers
to be used with them, and the effective parameter values to be used in calculations involving
them.
The selection of core sizes for this standard is based on the philosophy of including those
sizes which are industrial standards, either by inclusion in national standards, or by broadbased
use in industry. See 62...
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This part of IEC 62317 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.
The selection of core sizes for this standard is based on the philosophy of including those
sizes which are industrial standards, either by inclusion in a national standard, or by broadbased
...
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This part of IEC 62317 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of EP-cores, the essential dimensions of coil formers
to be used with these cores 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.
The general considerations upon which the design of this range of cores is based are as...
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This part of IEC 60424 gives guidance on allowable limits of surface irregularities applicable
to PQ-cores in accordance with the relevant generic specification.
This standard is considered as a sectional specification useful in the negotiation between
ferrite core manufacturers and users about surface irregularities.

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This part of IEC 62674 applies to fixed surface mount inductors and ferrite beads. The object of this standard is to define the terms necessary to describe the inductors covered by this standard, provide recommendations for preferred characteristics, recommended performance, test methods and general guidance.

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This International Standard provides standard AL values (inductance factors) and their tolerances of Pot, RM, ETD, E, EER, EP, PQ and low-profile gapped ferrite cores.

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This part of IEC 60401 presents a method for defining the designation nomenclature for the major physical attributes of soft ferrite core shapes. The purpose of this standard 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.

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This part of IEC 62317 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. The selection of core sizes for this standard is based on the philosophy of including those sizes which are industrial standards, either by inclusion in a national standard, or by broadbased use in industry. See IEC 62317-1 for more detail concerning the philosophy of selectin...view more

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This part of IEC 62333 provides characterization of parameters for electromagnetic noise suppression sheet (NSS) for digital devices and equipment used in a frequency range between 30 MHz to 30 GHz. Guidance is given for uniform presentation of the properties of noise suppression sheet, intended for use in manufacturers and users technical data. NSS suppresses noise at its source, rather than absorbing noise at a distance. Therefore NSS is distinguished from RF wave absorbers used in free space....view more

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This part of IEC 60424 gives guidance on allowable limits of surface irregularities applicable to planar-cores in accordance with the relevant generic specification defined in IEC 60424-1. The relations between the main dimensions of planar E-, ER- and EL-cores differ from those of standard cores. For example, the width of planar cores is larger while the total height is much smaller. Also the thickness of the legs is in most cases smaller than compared to standard cores. Therefore the concept o...view more

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This part of IEC 62024 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 standard 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 ...view more

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This part of IEC 62317 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of EFD-cores, the essential dimensions of coil formers to be used with them, and the effective parameter values to be used in calculations involving them. The selection of core sizes for this standard 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. See IEC 62...view more

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    • Standard
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This part of IEC 62317 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. The selection of core sizes for this standard 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 i...view more

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This part of IEC 62317 specifies the standards and existing projects dealing with dimensions
of ferrite cores. It is intended that this standard will include ferrite 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 standard part should appear with the part within this series. It is intended that t...
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This part of IEC 62317 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of EER-cores made of ferrite, the essential
dimensions of coil formers to be used with them, and the effective parameter values to be used in calculations involving them.

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This part of IEC 62025 applies to fixed, surface mounted inductors and ferrite beads.
Should conflict arise between these specifications and the detail specifications, the latter will
take precedence. The object of this standard is to establish requirements for fixed, surface mounted inductors, to describe terms, to give recommendations for standard values and dimensions and to give guidance on fixed, surface mounted inductors.

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This International Standard specifies the shapes and dimensions of ferrite cores for inductive components (transformers and chokes) of which the coil is typically constructed by multi-layer board or the coil is part of the motherboard. The general consideration upon which the design of this range of cores is based is given in Annex A.

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This International Standard describes methods of measuring the properties used to specify polycrystalline microwave ferrites in accordance with IEC 60392 and for general use in ferrite technology. These measuring methods are intended for the investigation of materials, generally referred to as ferrites, for application at microwave frequencies.

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This part of IEC 62317 specifies the dimensions that are of importance for mechanical interchangeability for E-cores with rectangular cross-section made of ferrite, the dimensions of coil formers to be used with them, and the effective parameter values to be used in calculations involving them. The selecting core sizes to this standard 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....view more

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