Ferrite cores - Standard inductance factor (AL) and its tolerance

Provides standard inductance factors (AL) and their tolerances for Pot, RM, ETD, EE, EP, EL and low-profile ferrite cores. Is recommended for users and manufacturers.

Ferritkerne - Standard-Induktivitätsfaktor (AL) und dessen Toleranz

Noyaux de ferrite - Inductance spécifique normalisée (AL) et tolérances associées

Fournit les inductances spécifiques normalisées (AL) ainsi que les tolérances associées des circuits magnétiques en pots, des noyaux carrés (RM), des noyaux ETD, des noyaux EE, des noyaux EP, des noyaux EL, des noyaux faible hauteur et des noyaux BMP en ferrites. Est recommandé aussi bien aux utilisateurs qu'aux fabricants.

Feritna jedra – Standardni faktor induktance (AL) in njegova toleranca (IEC 62358:2004)

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marec 2005
Feritna jedra – Standardni faktor induktance (AL) in njegova toleranca (IEC
Ferrite cores - Standard inductance factor (AL) and its tolerance (IEC 62358:2004)
ICS 29.100.10 Referenčna številka
SIST EN 62358:2005(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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ICS 29.100.10

English version

Ferrite cores –
Standard inductance factor (A )
and its tolerance
(IEC 62358:2004)

Noyaux de ferrite –  Ferritkerne –
Inductance spécifique normalisée (A ) Standard-Induktivitätsfaktor (A )
et tolérances associées und dessen Toleranz
(CEI 62358:2004) (IEC 62358:2004)

This European Standard was approved by CENELEC on 2004-07-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62358:2004 E

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EN 62358:2004 - 2 -
The text of document 51/756/FDIS, future edition 1 of IEC 62358, prepared by IEC TC 51, Magnetic
components and ferrite materials, was submitted to the IEC-CENELEC parallel vote and was
approved by CENELEC as EN 62358 on 2004-07-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2005-04-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2007-07-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
Endorsement notice
The text of the International Standard IEC 62358:2004 was approved by CENELEC as a European
Standard without any modification.

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- 3 - EN 62358:2004
Annex ZA

Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
ISO 497 1973 Guide to the choice of series of preferred - -
numbers and series containing more
rounded values of preferred numbers

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Première édition

First edition


Noyaux de ferrite –
Inductance spécifique normalisée (A )
et tolérances associées

Ferrite cores –
Standard inductance factor (A )
and its tolerance

 IEC 2004 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail

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