EN 60393-2:2016

Potentiometers for use in electronic equipment - Part 2: Sectional specification - Lead-screw actuated and rotary preset potentiometers

IEC 60393-2:2015 applies to lead-screw actuated and rotary preset potentiometers, wirewound and non-wirewound for use in electronic equipment. These potentiometers are primarily intended for use in circuits for trimming purposes which require infrequent adjustments. This part of IEC 60393 prescribes preferred ratings and characteristics and selects from IEC 60393-1 the appropriate quality assessment procedures, tests and measuring methods. It provides general performance requirements for this type of potentiometer. This standard gives the minimum performance requirements and test severities. This edition includes the following significant technical changes with respect to the previous edition: a) revision of the information on the assessment level EZ and FZ (zero nonconforming); b) complete editorial revision.

Potentiometer zur Verwendung in Geräten der Elektronik - Teil 2: Rahmenspezifikation - Trimmpotentiometer mit Einstellung durch Gewindespindel oder durch direktes Drehen

Potentiomètres utilisés dans les équipements électroniques - Partie 2 : Spécification intermédiaire - Potentiomètres d'ajustement multitours et rotatifs

L'IEC 60393-2:2015 est applicable aux potentiomètres d'ajustement multitours et rotatifs, bobinés et non bobinés utilisés dans des équipements électroniques. Ces potentiomètres sont principalement conçus pour être utilisés pour le réglage de circuits n'exigeant que des réglages peu fréquents. La présente partie de l'IEC 60393 prescrit des valeurs assignées et des caractéristiques préférentielles et sélectionne dans l'IEC 60393-1 des procédures d'assurance de la qualité, des essais et des méthodes de mesure appropriés. Elle donne les exigences de performances générales pour ce type de potentiomètre. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) révision des informations sur les niveaux d'assurance EZ et FZ (zéro non-conformité); b) révision éditoriale complète.

Potenciometri za elektronsko opremo - 2. del: Področna specifikacija - Potenciometri z vodilnim vijakom in vrtilni prednastavljivi potenciometri

Ta del standarda IEC 60393 se uporablja za potenciometre z vodilnim vijakom in vrtilne prednastavljive potenciometre (žične in nežične) za uporabo v elektronski opremi. Ti potenciometri so namenjeni predvsem uporabi v tokokrogih za namene nastavitve, kjer so potrebni redki popravki.
Ta del standarda IEC 60393 predpisuje prednostne vrednosti in lastnosti ter izbira primerne postopke za ovrednotenje kakovosti, preskuse in merilne metode iz standarda IEC 60393-1. Vsebuje splošne zahteve glede zmogljivosti za ta tip potenciometra.
Ta standard podaja minimalne zahteve glede zmogljivosti in preskusne stopnje.

General Information

• Status: Published
• Publication Date: 07-Apr-2016
• Withdrawal Date: 17-Jan-2019
• ICS: 31.040.20 - Potentiometers, variable resistors
• Technical Committee: CLC/SR 40 - Capacitors and resistors for electronic equipment
• Drafting Committee: IEC/TC 40 - IEC_TC_40
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 08-Apr-2016
• Completion Date: 08-Apr-2016
• Ref Project: SIST EN 60393-2:2016 - Potentiometers for use in electronic equipment - Part 2: Sectional specification - Lead-screw actuated and rotary preset potentiometers

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2016
3RWHQFLRPHWUL]DHOHNWURQVNRRSUHPRGHO3RGURþQDVSHFLILNDFLMD
3RWHQFLRPHWUL]YRGLOQLPYLMDNRPLQYUWLOQLSUHGQDVWDYOMLYLSRWHQFLRPHWUL
Potentiometers for use in electronic equipment - Part 2: Sectional specification - Lead-
screw actuated and rotary preset potentiometers
Potentiomètres utilisés dans les équipements électroniques - Partie 2 : Spécification
intermédiaire - Potentiomètres d'ajustement multi-tours et rotatifs
Ta slovenski standard je istoveten z: EN 60393-2:2016
ICS:
31.040.20 Potenciometri, spremenljivi Potentiometers, variable
upori resistors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60393-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2016
ICS 31.040.20
English Version
Potentiometers for use in electronic equipment - Part 2:
Sectional specification - Lead-screw actuated and rotary preset
potentiometers
(IEC 60393-2:2015)
Potentiomètres utilisés dans les équipements électroniques Potentiometer zur Verwendung in Geräten der Elektronik -
- Partie 2 : Spécification intermédiaire - Potentiomètres Teil 2: Rahmenspezifikation - Trimmpotentiometer mit
d'ajustement multitours et rotatifs Einstellung durch Gewindespindel oder durch direktes
(IEC 60393-2:2015) Drehen
(IEC 60393-2:2015)
This European Standard was approved by CENELEC on 2016-01-18. 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, 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
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60393-2:2016 E
European foreword
The text of document 40/2407/FDIS, future edition 3 of IEC 60393-2, prepared by IEC/TC 40
"Capacitors and resistors for electronic equipment" was submitted to the IEC-CENELEC parallel vote
and approved by CENELEC as EN 60393-2:2016.
The following dates are fixed:
(dop) 2016-10-18
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2019-01-18
• latest date by which the national standards conflicting with
the document have to be withdrawn

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 60393-2:2015 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, 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
IEC 60062 -  Marking codes for resistors and capacitors EN 60062 -
IEC 60068-1 2013 Environmental testing -- Part 1: General EN 60068-1 2014
and guidance
IEC 60068-2-1 2007 Environmental testing -- Part 2-1: Tests - EN 60068-2-1 2007
Test A: Cold
IEC 60068-2-2 2007 Environmental testing -- Part 2-2: Tests - EN 60068-2-2 2007
Test B: Dry heat
IEC 60393-1 2008 Potentiometers for use in electronic EN 60393-1 2009
equipment -- Part 1: Generic specification
IEC 61193-2 2007 Quality assessment systems -- Part 2: EN 61193-2 2007
Selection and use of sampling plans for
inspection of electronic components and
packages
IEC 60393-2 ®
Edition 3.0 2015-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Potentiometers for use in electronic equipment –

Part 2: Sectional specification – Lead-screw actuated and rotary preset

potentiometers
Potentiomètres utilisés dans les équipements électroniques –

Partie 2: Spécification intermédiaire – Potentiomètres d'ajustement multitours et

rotatifs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.040.20 ISBN 978-2-8322-3060-2

– 2 – IEC 60393-2:2015  IEC 2015
CONTENTS
FOREWORD . 4
1 General . 6
1.1 Scope . 6
1.2 Normative references . 6
1.3 Information to be given in a detail specification . 6
1.3.1 General . 6
1.3.2 Outline drawing and dimensions . 7
1.3.3 Mounting . 7
1.3.4 Style . 7
1.3.5 Resistance law . 7
1.3.6 Ratings and characteristics . 7
1.3.7 Marking . 8
1.3.8 Ordering information . 8
1.3.9 Additional information (not for inspection purposes) . 8
1.4 Marking . 8
1.4.1 General . 8
1.4.2 Marking for potentiometers . 8
1.4.3 Marking for packaging . 8
1.4.4 Additional marking . 8
2 Preferred ratings, characteristics and test severities . 9
2.1 Preferred characteristics . 9
2.1.1 General . 9
2.1.2 Preferred climatic categories . 9
2.1.3 Temperature coefficients and temperature characteristics of resistance . 9
2.1.4 Limits for change in resistance or output voltage ratio . 10
2.1.5 Total mechanical travel . 11
2.2 Preferred values of ratings . 11
2.2.1 General . 11
2.2.2 Nominal total resistance . 11
2.2.3 Tolerances on nominal total resistance . 12
2.2.4 Rated dissipation . 12
2.2.5 Limiting element voltage . 13
2.2.6 Insulation voltage . 13
2.2.7 Limits for insulation resistance . 13
2.3 Preferred test severities . 13
2.3.1 General . 13
2.3.2 Drying . 13
2.3.3 Vibration . 14
2.3.4 Shock . 14
2.3.5 Low air pressure . 14
2.3.6 Change of temperature . 14
3 Quality assessment procedures . 14
3.1 General . 14
3.2 Definitions. 14
3.2.1 Primary stage of manufacture . 14
3.2.2 Structurally similar components . 14

IEC 60393-2:2015  IEC 2015 – 3 –
3.2.3 Assessment levels EZ and FZ (zero nonconforming) . 15
3.3 Qualification approval . 15
3.3.1 General . 15
3.3.2 Qualification approval on the basis of the fixed sample size procedure . 15
3.3.3 Tests . 16
3.4 Quality conformance inspection . 23
3.4.1 Formation of inspection lots . 23
3.4.2 Test schedule . 23
3.4.3 Assessment levels . 23
3.5 Delayed delivery . 26
Bibliography . 27

Figure 1 – Rated dissipation curve . 12
Figure 2 – Rated dissipation curve . 13

Table 1 – Temperature coefficients and temperature characteristics of resistance . 10
Table 2 – Limits for change in resistance or output voltage ratio . 11
Table 3 – Fixed sample size test schedule for qualification approval (1 of 7) . 17
Table 4 – Quality conformance inspection: Lot-by-lot inspection . 24
Table 5 – Quality conformance inspection: Periodic testing (1 of 2). 25

– 4 – IEC 60393-2:2015  IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
______________
POTENTIOMETERS FOR USE IN ELECTRONIC EQUIPMENT –

Part 2: Sectional specification – Lead-screw actuated
and rotary preset potentiometers

FOREWORD
1) The Internati
...