IEC 62317-5:2015

IEC 62317-5 ®
Edition 1.0 2015-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Ferrite cores – Dimensions –
Part 5: EP-cores and associated parts for use in inductors and transformers

Noyaux ferrites – Dimensions –
Partie 5: Noyaux EP et pièces associées utilisés dans les inductances et
transformateurs
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IEC 62317-5 ®
Edition 1.0 2015-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Ferrite cores – Dimensions –
Part 5: EP-cores and associated parts for use in inductors and transformers

Noyaux ferrites – Dimensions –

Partie 5: Noyaux EP et pièces associées utilisés dans les inductances et

transformateurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10 ISBN 978-2-8322-2917-0

– 2 – IEC 62317-5:2015 © IEC 2015

CONTENTS
FOREWORD . 3

INTRODUCTION . 5

1 Scope . 6

2 Normative references. 6

3 Primary standards . 6

3.1 General . 6

3.2 Dimensions of EP-cores . 6

3.2.1 Principal dimensions . 6
3.2.2 Effective parameter and A values . 7
min
3.3 Main dimensions of coil formers. 8
3.4 Pin locations and base outlines . 9
Annex A (normative) EP-core design . 11
A.1 General . 11
A.2 Pin locations and base outlines . 11
Bibliography . 12

Figure 1 – Principal dimensions of EP-cores . 7
Figure 2 – Main dimensions of coil formers for EP-cores . 8
Figure 3 – Pin locations (SMD type) viewed from the upper side of the board . 9
Figure 4 – Pin locations (PTH type) viewed from the underside of the board . 10

Table 1 – Principal dimensions of EP-cores . 7
Table 2 – Effective parameter and A values . 8
min
Table 3 – Main dimensions of coil formers for EP-cores . 8

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
FERRITE CORES –
DIMENSIONS –
Part 5: EP-cores and associated parts

for use in inductors and transformers

FOREWORD
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62317-5 has been prepared IEC technical committee 51: Magnetic
components and ferrite materials.
This first edition cancels and replaces the first edition of IEC 61596 published in 1995. This
edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to IEC 61596:
a) addition of EP5-core in Table 1,
b) addition of effective parameter and A values, main dimensions of coil formers, and pin
min
locations and base outlines for EP5-core.

– 4 – IEC 62317-5:2015 © IEC 2015

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

CDV Report on voting
51/1063/CDV 51/1103/RVC
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 in the IEC 62317 series, published 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 website 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.
INTRODUCTION
IEC 62317 consists of the following parts, under the general title Ferrite cores – Dimensions:

Part 1: General specification
Part 2: Pot-cores for use in telecommunications, power supply, and filter applications

Part 3: Half
...