EN IEC 62024-2:2020

SLOVENSKI STANDARD
01-junij-2021
Nadomešča:
SIST EN 62024-2:2009
Visokofrekvenčne induktivne komponente - Električne karakteristike in merilne
metode - 2. del: Naznačeni tok tuljav za presmernik DC/DC
High frequency inductive components - Electrical characteristics and measuring methods
- Part 2: Rated current of inductors for DC to DC converters
Induktive Hochfrequenz-Bauelemente - Elektrische Eigenschaften und Messmethoden -
Teil 2: Bemessungsstrom von Drosselspulen für DC/DC-Wandler
Composants inductifs à haute fréquence - Caractéristiques électriques et méthodes de
mesure - Partie 2: Courant assigné des bobines d'induction pour des convertisseurs
continus-continus
Ta slovenski standard je istoveten z: EN IEC 62024-2:2020
ICS:
29.100.10 Magnetne komponente Magnetic components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62024-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2020
ICS 29.100.10 Supersedes EN 62024-2:2009 and all of its amendments
and corrigenda (if any)
English Version
High frequency inductive components - Electrical characteristics
and measuring methods - Part 2: Rated current of inductors for
DC-to-DC converters
(IEC 62024-2:2020)
Composants inductifs à haute fréquence - Caractéristiques Induktive Hochfrequenz-Bauelemente - Elektrische
électriques et méthodes de mesure - Partie 2: Courant Eigenschaften und Messmethoden - Teil 2:
assigné des bobines d'induction pour des convertisseurs Bemessungsstrom von Drosselspulen für DC/DC-Wandler
continu-continu (IEC 62024-2:2020)
(IEC 62024-2:2020)
This European Standard was approved by CENELEC on 2020-05-05. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62024-2:2020 E

European foreword
The text of document 51/1303/CDV, future edition 2 of IEC 62024-2, prepared by IEC/TC 51
"Magnetic components, ferrite and magnetic powder materials" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN IEC 62024-2:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-02-05
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-05-05
document have to be withdrawn
This document supersedes EN 62024-2:2009 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 62024-2:2020 was approved by CENELEC as a European
Standard without any modification.

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-1 2013 Environmental testing - Part 1: General and EN 60068-1 2014
guidance
IEC 62025-1 - High frequency inductive components - Non- EN 62025-1 -
electrical characteristics and measuring methods -
Part 1: Fixed, surface mounted inductors for use in
electronic and telecommunication equipment

IEC 62024-2 ®
Edition 2.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High frequency inductive components – Electrical characteristics and
measuring methods –
Part 2: Rated current of inductors for DC-to-DC converters
Composants inductifs à haute fréquence – Caractéristiques électriques et
méthodes de mesure –
Partie 2: Courant assigné des bobines d'induction pour des convertisseurs
continu-continu
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10 ISBN 978-2-8322-7995-3
– 2 – IEC 62024-2:2020 © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Standard atmospheric conditions . 6
4.1 Standard atmospheric conditions for testing . 6
4.2 Reference conditions . 6
5 Measuring method of DC saturation limited current . 6
5.1 General . 6
5.2 Test conditions . 6
5.3 Measuring circuit and calculation . 7
5.3.1 Measuring circuit . 7
5.3.2 Calculation . 7
5.4 Attachment jig of inductor . 8
5.5 Measuring method . 8
5.6 Quality conformance inspection . 8
6 Measuring method of temperature rise limited current. 8
6.1 General . 8
6.2 Test conditions . 9
6.3 Measuring jig . 9
6.3.1 General . 9
6.3.2 Printed-wiring board method . 9
6.3.3 Lead wire method . 12
6.4 Measuring method and calculation . 12
6.4.1 General . 12
6.4.2 Resistance substitution method . 12
6.4.3 Thermo-couple method . 14
6.5 Quality conformance inspection . 15
7 Determination of rated current . 15
8 Information to be given in the detail specification . 15
8.1 General . 15
8.2 Measuring method of DC saturation limited current . 15
8.3 Measuring method of temperature rise limited current . 15
Annex A (informative) Example of recommended description on product specification
sheets and catalogues . 16
Bibliography . 17

Figure 1 – Inductance measuring circuit under application of DC saturation condition . 7
Figure 2 – Example of printed-wiring boards . 12
Figure 3 – Temperature rise measuring circuit by resistance substitution method . 13
Figure 4 – Temperature rise measuring circuit by thermo-couple method . 14

Table 1 – Width of circuits . 9
Table 2 – Circuit pattern width and thickness . 10
Table 3 – Wire size of circuits . 12

IEC 62024-2:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH FREQUENCY INDUCTIVE COMPONENTS –
ELECTRICAL CHARACTERISTICS AND MEASURING METHODS –

Part 2: Rated current of inductors for DC-to-DC converters

FOREWORD
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