IEC 62317-2:2010

IEC 62317-2 ®
Edition 1.0 2010-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Ferrite cores – Dimensions –
Part 2: Pot-cores for use in telecommunications, power supply, and filter
applications
Noyaux ferrites – Dimensions –
Partie 2: Circuits magnétiques en pots utilisés dans des applications de
télécommunications, d’alimentation électrique et de filtre

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IEC 62317-2 ®
Edition 1.0 2010-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Ferrite cores – Dimensions –
Part 2: Pot-cores for use in telecommunications, power supply, and filter
applications
Noyaux ferrites – Dimensions –
Partie 2: Circuits magnétiques en pots utilisés dans des applications de
télécommunications, d’alimentation électrique et de filtre

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
M
CODE PRIX
ICS 29.100.10 ISBN 978-2-88912-005-5
– 2 – 62317-2 © IEC:2010
CONTENTS
FOREWORD.3

1 Scope.5

2 Normative references .5

3 Primary standards .5

3.1 Dimensions of pot-cores.5

3.1.1 Principal dimensions.5

3.1.2 Wire-ways .7

3.1.3 Effective parameter values .8
3.2 Main dimensions for coil formers .9
Annex A (informative) Pot-core design.11
Annex B (informative) Example of a standard for gauges to check the dimensions of
pot-cores meeting the IEC primary standard .12

Figure 1 – Principal dimensions of pot-cores without back-wall slots.6
Figure 2 – Principal dimensions of pot-cores with back-wall slots.7
Figure 3 – Main dimensions of coil formers for pot-cores .9
Figure B.1 – Dimensions of gauge A .12
Figure B.2 – Dimensions of gauges B and C .13

Table 1 – Principal dimensions of pot-cores.6
Table 2 – Limits for dimensions C and G .7
Table 3 – Minimum wire-way depth .8
Table 4 – Effective parameter values pot-cores with a centre hole .8
Table 5 – Effective parameter values pot-cores without a centre hole .9
Table 6 – Main dimensions of coil formers for pot-cores.10
Table A.1 – Ratio of diameter to height .11
Table B.1 – Dimensions of gauge A .12
Table B.2 – Dimensions of gauges B and C .13

62317-2 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
FERRITE CORES –
DIMENSIONS –
Part 2: Pot-cores for use in telecommunications,

power supply, and filter applications

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62317-2 has been prepared by technical committee 51: Magnetic
components and ferrite materials.
According to IEC 62317-1 clause 3-b) and Table A.1 in Annex A, the publication number of
IEC 60133 should be updated to IEC 62317-2 at the time of new revision of this standard.
This first edition cancels and replaces the fourth edition of IEC 60133 published in 2000.
This International Standard constitutes a technical revision of IEC 60133.
The main changes with respect to the previous edition of IEC 60133 are listed below:
– changed “e dimension” of P4,6/3,1 in Table 6 from 3,20 Max. to 3,40 Max.;
– removed “derived standards” from Annex B (informative) in the fourth edition of IEC 60133;

– 4 – 62317-2 © IEC:2010
– changed the name of core parts in Subclause 3.1.2 from “Grooves” to “Wire-ways” in

accordance with IEC 62317-1 Subclause 5.6.

The text of this standard is based on the following documents:

FDIS Report on voting
51/980/FDIS 51/982/RVD
Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 62317 series, under the general title Ferrite cores–Dimensions,
can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
62317-2 © IEC:2010 – 5 –
FERRITE CORES –
DIMENSIONS –
Part 2: Pot-cores for use in telecommunications,

power supply, and filter applications

1 Scope
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 broad-
based use in industry. See IEC 62317-1 for more detail concerning the philosophy of selecting
core sizes to be included.
The gener
...