Fixed inductors for use in electronic and telecommunication equipment - Marking codes

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 system for marking of date codes on fixed inductors by
means of letters and digits.

Festinduktivitäten für elektrische und nachrichtentechnische Einrichtungen - Kennzeichnungen

Inductances fixes utilisées dans les équipements électroniques et de télécommunications - Codes pour le marquage

L'IEC 61605:2016 spécifie les codes de marquage applicables aux inductances fixes. Il couvre les valeurs d'inductance et leurs tolérances ainsi que les dates. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) Le système de codage de la date de fabrication des inductances fixes a été mis à jour.

Fiksne dušilke za elektronsko in telekomunikacijsko opremo - Označevalne kode

Ta dokument določa označevalne kode za fiksne dušilke.
Barvna koda, podana v točki 3, določa označevalno kodo za fiksne dušilke. Namenjena je za uporabo z vrednostmi niza od E3 do E24, kot je določeno v standardu IEC 60063.
Koda, podana v točki 4, določa sistem za označevanje vrednosti induktivnosti s številkami in črkami.
Koda, podana v točki 5, določa sistem za označevanje tolerance pri vrednostih induktivnosti s črkami.
Koda, podana v točki 6, določa sistem za označevanje datumskih kod pri fiksnih dušilkah s številkami in črkami.

General Information

Status
Published
Publication Date
20-Mar-2017
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
06-Mar-2017
Due Date
11-May-2017
Completion Date
21-Mar-2017

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SLOVENSKI STANDARD
SIST EN 61605:2017
01-april-2017
1DGRPHãþD
SIST EN 61605:2006
)LNVQHGXãLONH]DHOHNWURQVNRLQWHOHNRPXQLNDFLMVNRRSUHPR2]QDþHYDOQHNRGH

Fixed inductors for use in electronic and telecommunication equipment - Marking codes

Festinduktivitäten für elektrische und nachrichtentechnische Einrichtungen -
Kennzeichnungen
Inductances fixes utilisées dans les équipements électroniques et de
télécommunications - Codes pour le marquage
Ta slovenski standard je istoveten z: EN 61605:2017
ICS:
01.070 Barvno kodiranje Colour coding
29.180 Transformatorji. Dušilke Transformers. Reactors
SIST EN 61605:2017 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61605:2017
---------------------- Page: 2 ----------------------
SIST EN 61605:2017
EUROPEAN STANDARD EN 61605
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2017
ICS 29.100.10 Supersedes EN 61605:2005
English Version
Fixed inductors for use in electronic and telecommunication
equipment - Marking codes
(IEC 61605:2016)

Inductances fixes utilisées dans les équipements Festinduktivitäten für elektrische und nachrichtentechnische

électroniques et de télécommunications - Einrichtungen - Kennzeichnungen
Codes pour le marquage (IEC 61605:2016)
(IEC 61605:2016)

This European Standard was approved by CENELEC on 2016-11-30. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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: Avenue Marnix 17, B-1000 Brussels

© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 61605:2017 E
---------------------- Page: 3 ----------------------
SIST EN 61605:2017
EN 61605:2017
European foreword

The text of document 51/1135/CDV, future edition 3 of IEC 61605, 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 61605:2017.
The following dates are fixed:
(dop) 2017-08-30
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2019-11-30
• latest date by which the national standards conflicting with
the document have to be withdrawn
This document supersedes EN 61605:2005.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such

patent rights.
Endorsement notice

The text of the International Standard IEC 61605:2016 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following note has to be added for the standard indicated :

IEC 60063 NOTE Harmonized as EN 60063.
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SIST EN 61605:2017
EN 61605:2017
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When 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
ISO 8601 - Data elements and interchange - -
formats - Information interchange -
Representation of dates and times
---------------------- Page: 5 ----------------------
SIST EN 61605:2017
---------------------- Page: 6 ----------------------
SIST EN 61605:2017
IEC 61605
Edition 3.0 2016-10
INTERNATIONAL
STANDARD
Fixed inductors for use in electronic and telecommunication equipment –
Marking codes
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.100.10 ISBN 978-2-8322-3694-9

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 7 ----------------------
SIST EN 61605:2017
– 2 – IEC 61605:2016 © IEC 2016
CONTENTS

FOREWORD ........................................................................................................................... 3

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Colour code for fixed inductors ........................................................................................ 5

3.1 General rules .......................................................................................................... 5

3.2 Examples of colour code for fixed inductors ............................................................ 6

4 Digit and letter code for inductance values ...................................................................... 7

4.1 General rules .......................................................................................................... 7

4.2 Examples of digit and letter code for inductance values .......................................... 8

5 Letter code for tolerances of inductance values ............................................................... 9

5.1 Symmetrical tolerances ........................................................................................... 9

5.2 Other tolerances ..................................................................................................... 9

6 Date code system for fixed inductors ............................................................................... 9

6.1 Single-character code for year and month ............................................................... 9

6.2 Two-character code for year and month ................................................................ 10

6.3 Four-character code for year and week ................................................................. 11

Bibliography .......................................................................................................................... 12

Figure 1 – Example for 47 μH ± 10 % ...................................................................................... 6

Figure 2 – Example for 4,7 μH ± 2 % ...................................................................................... 7

Figure 3 – Example for 4,7 nH ± 5 %....................................................................................... 7

Table 1 – Values corresponding to colours .............................................................................. 6

Table 2 – Cardinal numbers for the multiplier .......................................................................... 7

Table 3 – Examples of digit and letter code for inductance values ........................................... 8

Table 4 – Letter code for symmetrical tolerance ...................................................................... 9

Table 5 – Single-character code for year and month for a four-year cycle ............................. 10

Table 6 – Code letter for year in a twenty-year cycle ............................................................. 10

Table 7 – Character code letter for month ............................................................................. 11

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SIST EN 61605:2017
IEC 61605:2016 © IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIXED INDUCTORS FOR USE IN ELECTRONIC AND
TELECOMMUNICATION EQUIPMENT – MARKING CODES
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international

co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in

addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,

Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their

preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with

may participate in this preparatory work. International, governmental and non-governmental organizations liaising

with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for

Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence between

any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

...

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