EN 60939-1:2005

SLOVENSKI SIST EN 60939-1:2005

STANDARD
december 2005
Pasivni filtri za dušenje elektromagnetnega motenja – 1. del: Generična
specifikacija (IEC 60939-1:2005)
Passive filter units for electromagnetic interference suppression – Part 1: Generic
specification (IEC 60939-1:2005)
ICS 31.160 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 60939-1
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2005
ICS 31.160 Supersedes EN 133000:1997

English version
Passive filter units for electromagnetic interference suppression
Part 1: Generic specification
(IEC 60939-1:2005)
Filtres passifs d'antiparasitage Passive Filter für die Unterdrückung
Partie 1: Spécification générique von elektromagnetischen Störungen
(CEI 60939-1:2005) Teil 1: Fachgrundspezifikation
(IEC 60939-1:2005)
This European Standard was approved by CENELEC on 2005-03-01. 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.

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

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

© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60939-1:2005 E
Foreword
The text of document 40/1509/FDIS, future edition 2 of IEC 60939-1, prepared by IEC TC 40,
Capacitors and resistors for electronic equipment, was submitted to the IEC-CENELEC parallel vote
and was approved by CENELEC as EN 60939-1 on 2005-03-01.
This European Standard supersedes EN 133000:1997.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2005-12-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-03-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60939-1:2005 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 60939-1:2005
Annex ZA
(normative)
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
IEC 60027 Series Letter symbols to be used in electrical HD 60027 Series
technology HD 245 S1 1997
IEC 60050 Series International Electrotechnical Vocabulary- -

1) 2)
IEC 60062 - Marking codes for resistors and EN 60062 2005
capacitors
1) 2)
IEC 60068-1 - Environmental testing EN 60068-1 1994
Part 1: General and guidance
1) 2)
IEC 60068-2-1 - Part 2: Tests - Tests A: Cold EN 60068-2-1 1993

1) 2)
IEC 60068-2-2 - Part 2: Tests - Tests B: Dry heat EN 60068-2-2 1993

1) 2)
IEC 60068-2-6 - Part 2: Tests - Test Fc: Vibration EN 60068-2-6 1995
(sinusoidal)
1) 2)
IEC 60068-2-13 - Part 2: Tests - Test M: Low air pressure EN 60068-2-13 1999

1) 2)
IEC 60068-2-14 - Part 2: Tests - Test N: Change of EN 60068-2-14 1999
temperature
1) 2)
IEC 60068-2-17 - Part 2: Tests - Test Q: Sealing EN 60068-2-17 1994

1) 2)
IEC 60068-2-20 - Part 2: Tests - Test T: Soldering HD 323.2.20 S3 1988

1) 2)
IEC 60068-2-21 - Part 2-21: Tests - Test U: Robustness of EN 60068-2-21 1999
terminations and integral mounting
devices
1) 2)
IEC 60068-2-27 - Part 2: Tests - Test Ea and guidance: EN 60068-2-27 1993
Shock
1) 2)
IEC 60068-2-29 - Part 2: Tests - Test Eb and guidance: EN 60068-2-29 1993
Bump
1)
Undated reference.
2)
Valid edition at date of issue.

Publication Year Title EN/HD Year
1) 2)
IEC 60068-2-30 - Part 2: Tests - Test Db and guidance: EN 60068-2-30 1999
Damp heat, cyclic (12 + 12-hour cycle)

1) 2)
IEC 60068-2-45 - Part 2: Tests - Test Xa and guidance: EN 60068-2-45 1992
Immersion in cleaning solvents

1) 2)
IEC 60068-2-78 - Part 2-78: Tests - Test Cab: Damp heat, EN 60068-2-78 2001
steady state
1) 2)
IEC 60085 - Electrical insulation - Thermal EN 60085 2004
classification
1)
IEC 60294 - Measurement of the dimensions of a - -
cylindrical component having two axial
terminations
IEC 60384-14 1993 Fixed capacitors for use in electronic - -
equipment
Part 14: Sectional specification: Fixed
capacitors for electromagnetic
interference suppression and connection
to the supply mains
1)
IEC 60410 - Sampling plans and procedures for - -
inspection by attributes
1) 2)
IEC 60695-2-2 - Fire hazard testing EN 60695-2-2 1994
Part 2: Test methods -- Section 2:
Needle-flame test
1)
IEC QC 001002-3 - IEC Quality Assessment System for - -
Electronic Components (IECQ) - Rules of
Procedure
Part 3: Approval procedures
CISPR 17 1981 Methods of measurement of the - -
suppression characteristics of passive
radio interference filters and suppression
components
ISO 1000 1992 SI units and recommendations for the use - -
of their multiples and of certain other
units
INTERNATIONAL IEC
STANDARD 60939-1
Second edition
2005-02
Passive filter units for electromagnetic
interference suppression –
Part 1:
Generic specification
 IEC 2005  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from 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@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
V
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 60939-1  IEC:2005(E)
CONTENTS
FOREWORD.4

1 General .6
1.1 Scope.6
1.2 Normative references .6
2 Technical data.7
2.1 Units, symbols and terminology.7
2.2 Definitions .8
2.3 Preferred values .10
2.4 Marking .10
3 Quality assessment procedures .10
3.1 General .10
3.2 Primary stage of manufacture .11
3.3 Subcontracting .11
3.4 Structurally similar filters .11
3.5 Qualification approval procedures .12
3.6 Capability approval procedures .12
3.7 Rework and repair work .13
3.8 Release for delivery.14
3.9 Certified test records .14
3.10 Delayed delivery.14
3.11 Alternative test methods .14
3.12 Unchecked parameters .14
4 Test and measurement procedures .15
4.1 General .15
4.2 Standard atmospheric conditions .15
4.3 Drying .16
4.4 Visual examination and check of dimensions .16
4.5 Voltage tests .17
4.6 Insertion loss.21
4.7 Discharge resistance .21
4.8 Robustness of terminations.22
4.9 Resistance to soldering heat.23
4.10 Solderability .23
4.11 Rapid change of temperature .24
4.12 Vibration.24
4.13 Bump .25
4.14 Shock.25
4.15 Container sealing .25
4.16 Climatic sequence .25
4.17 Damp heat, steady state .27
4.18 Temperature rise .27
4.19 Current overload.27
4.20 Endurance.28
4.21 Charge and discharge test .28

60939-1 © IEC:2005(E) – 3 –
4.22 Passive flammability .30
4.23 Active flammability.30
4.24 Solvent resistance of marking .31
4.25 Component solvent resistance .31

Figure 1 – Asymmetrical and symmetrical test circuit .9
Figure 2 – Examples of the application of Table 2.17
Figure 3 – Test circuit for d.c. test .20
Figure 4 – Relay circuit .28
Figure 5 – Thyristor circuit .29
Figure 6 – Voltage and current waveforms.29

Table 1 – Standard atmospheric conditions .16
Table 2 – Measuring points .17
Table 3 – DC voltage for insulation resistance .19
Table 4 – Force for wire terminations .
...