SIST EN IEC 62391-2:2025

Fixed electric double-layer capacitors for use in electronic equipment - Part 2: Sectional specfication - Electric double layer capacitors for power application (IEC 62391-2:2025)

IEC 62391-2:2025 applies to electric double-layer capacitors for power application.
Electric double-layer capacitors for power are intended for applications that require discharge currents in the range from mA to A. The characteristics of the capacitors include such performance as relatively high capacitance and low internal resistance, which is applicable to Class 3 and Class 5 of the measurement classification specified in IEC 62391-1:2022.
The object of this document is to specify preferred ratings and characteristics and to select from IEC 62391-1:2022 the appropriate quality assessment procedures, tests and measuring methods and to give general performance requirements for this type of capacitor. Test severities and requirements specified in detail specifications referring to this document provide specific test severities and requirements of an equal or higher performance level.
The definition of power density and its calculating procedure can be found in Annex A.
This edition includes the following significant technical changes with respect to the previous edition:
a) the document has been completely restructured to comply with the ISO/IEC Directives, Part 2;
b) introduction of a new technical categorization for the test methods;
c) reorganization of the test methods have been according to these new categories;
d) revision of the tables, figures and references according to changes.

Elektrische Doppelschichtfestkondensatoren zur Verwendung in Geräten der Elektronik – Teil 2: Rahmenspezifikation: Elektrische Doppelschichtfestkondensatoren für Leistungsanwendungen (IEC 62391-2:2025)

Condensateurs électriques fixes à double couche utilisés dans les équipements électroniques - Partie 2: Spécification intermédiaire - Condensateurs électriques à double couche pour application de puissance (IEC 62391-2:2025)

L’IEC 62391-2:2025 s’applique aux condensateurs électriques à double couche pour application de puissance.
Les condensateurs électriques à double couche pour application de puissance sont destinés aux applications qui exigent des courants de décharge dans la gamme des milliampères aux ampères. Les caractéristiques des condensateurs incluent des performances comme une capacité relativement élevée et une faible résistance interne, ce qui concerne la classe 3 et à la classe 5 de la classification des mesures spécifiée dans l’IEC 62391-1:2022.
Le présent document a pour objet de spécifier les valeurs assignées et caractéristiques préférentielles, et de choisir, à partir de l’IEC 62391-1:2022, les procédures d’assurance de la qualité, essais et méthodes de mesure appropriés, et de donner les exigences de performances générales pour ce type de condensateur. Les sévérités d’essai et les exigences stipulées dans les spécifications particulières faisant référence au présent document constituent des sévérités d’essai et des exigences spécifiques, correspondant à un niveau de performances supérieur ou égal.
La définition de la densité de puissance et sa procédure de calcul peuvent être consultées à l’Annexe A.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) la structure du document a été intégralement réétudiée afin de respecter les Directives ISO/IEC, Partie 2:
b) introduction d’une nouvelle classification technique pour les méthodes d’essai;
c) réorganisation des méthodes d’essai selon ces nouvelles catégories;
d) révision des tableaux, figures et références en fonction des modifications apportées.

Fiksni električni dvoplastni kondenzatorji za elektronsko opremo - 2. del: Področna specifikacija - Električni dvoplastni kondenzatorji za elektroenergetske aplikacije (IEC 62391-2:2025)

General Information

• Status: Published
• Public Enquiry End Date: 20-Jun-2024
• Publication Date: 10-Apr-2025
• ICS: 31.060.10 - Fixed capacitors
• Technical Committee: I11 - Imaginarni 11
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 10-Apr-2025
• Due Date: 15-Jun-2025
• Completion Date: 11-Apr-2025
• Ref Project: EN IEC 62391-2:2025 - Fixed electric double-layer capacitors for use in electronic equipment - Part 2: Sectional specification - Electric double-layer capacitors for power application

Relations

• Replaces: SIST EN 62391-2:2006 - Fixed electric double-layer capacitors for use in electronic equipment -- Part 2: Sectional specification - Electric double-layer capacitors for power application
• Effective Date: 01-Jun-2025

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2025
Nadomešča:
SIST EN 62391-2:2006
Fiksni električni dvoplastni kondenzatorji za elektronsko opremo - 2. del:
Področna specifikacija - Električni dvoplastni kondenzatorji za elektroenergetske
aplikacije (IEC 62391-2:2025)
Fixed electric double-layer capacitors for use in electronic equipment - Part 2: Sectional
specfication - Electric double layer capacitors for power application (IEC 62391-2:2025)
Elektrische Doppelschichtfestkondensatoren zur Verwendung in Geräten der Elektronik –
Teil 2: Rahmenspezifikation: Elektrische Doppelschichtfestkondensatoren für
Leistungsanwendungen (IEC 62391-2:2025)
Condensateurs électriques fixes à double couche utilisés dans les équipements
électroniques - Partie 2: Spécification intermédiaire - Condensateurs électriques à
double couche pour application de puissance (IEC 62391-2:2025)
Ta slovenski standard je istoveten z: EN IEC 62391-2:2025
ICS:
31.060.10 Fiksni kondenzatorji Fixed capacitors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62391-2

NORME EUROPÉENNE
EUROPÄISCHE NORM April 2025
ICS 31.060.10 Supersedes EN 62391-2:2006
English Version
Fixed electric double-layer capacitors for use in electronic
equipment - Part 2: Sectional specification - Electric double-layer
capacitors for power application
(IEC 62391-2:2025)
Condensateurs électriques fixes à double couche utilisés Elektrische Doppelschichtfestkondensatoren zur
dans les équipements électriques et électroniques - Partie Verwendung in Geräten der Elektronik - Teil 2:
2: Spécification intermédiaire - Condensateurs électriques à Rahmenspezifikation: Elektrische
double couche pour application de puissance Doppelschichtfestkondensatoren für
(IEC 62391-2:2025) Leistungsanwendungen
(IEC 62391-2:2025)
This European Standard was approved by CENELEC on 2025-03-20. 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,
Türkiye 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
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62391-2:2025 E

European foreword
The text of document 40/3193/FDIS, future edition 2 of IEC 62391-2, prepared by TC 40 “Capacitors
and resistors for electronic equipment” was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 62391-2:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-04-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-04-30
document have to be withdrawn
This document supersedes EN 62391-2:2006 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.
This document is read in conjunction with EN IEC 62391-1:2022.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62391-2:2025 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60063 NOTE Approved as EN 60063
IEC 60068-1:2013 NOTE Approved as EN 60068-1:2014 (not modified)
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2–6 2007 Environmental testing - Part 2–6: Tests - EN 60068-2–6 2008
Test Fc: Vibration (sinusoidal)
IEC 60068-2–14 2023 Environmental testing - Part 2–14: Tests - EN IEC 60068-2– 2023
Test N: Change of temperature 14
IEC 60068-2–20 2021 Environmental testing - Part 2–20: Tests - EN IEC 60068-2– 2021
Test Ta and Tb: Test methods for 20
solderability and resistance to soldering
heat of devices with leads
IEC 60417 - Graphical symbols for use on equipment. - -
Index, survey and compilation of the single
sheets.
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 62391-1 2022 Fixed electric double-layer capacitors for EN IEC 62391-1 2022
use in electric and electronic equipment -
Part 1: Generic specification
IEC 62391-2–1 2006 Fixed electric double-layer capacitors for EN 62391-2–1 2006
use in electronic equipment - Part 2–1:
Blank detail specification - Electric double-
layer capacitors for power application -
Assessment level EZ
IEC 62391-2 ®
Edition 2.0 2025-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed electric double-layer capacitors for use in electric and electronic
equipment –
Part 2: Sectional specification – Electric double-layer capacitors for power
application
Condensateurs électriques fixes à double couche utilisés dans les
équipements électriques et électroniques –
Partie 2: Spécification intermédiaire – Condensateurs électriques à double
couche pour application de puissance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.10 ISBN 978-2-8327-0153-9
– 2 – IEC 62391-2:2025 © IEC 2025
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Preferred ratings and characteristics . 8
4.1 Preferred characteristics . 8
4.2 Preferred values of ratings . 9
4.2.1 Nominal capacitance (C ) . 9
N
4.2.2 Tolerance on nominal capacitance . 9
4.2.3 Rated voltage (U ) . 9
R
4.2.4 Rated temperature . 9
4.2.5 Internal resistance . 9
5 Test and measurement procedures, and performance requirements . 9
5.1 General . 9
5.2 Preliminary drying . 9
5.3 Test conditions and measurement conditions . 9
5.4 Visual examination and check of dimensions . 10
5.4.1 General . 10
5.4.2 Visual examination . 10
5.4.3 Requirements . 10
5.5 Electrical tests . 10
5.5.1 Capacitance . 10
5.5.2 Internal resistance . 10
5.5.3 Leakage current . 11
5.6 Robustness of terminations . 11
5.6.1 General . 11
5.6.2 Initial measurement . 11
5.6.3 Final inspection, measurements and requirements. 11
5.7 Resistance to soldering heat . 11
5.7.1 General . 11
5.7.2 Initial measurement . 11
5.7.3 Conditions . 12
5.7.4 Final inspection, measurements and requirements. 12
5.8 Solderability . 12
5.8.1 General . 12
5.8.2 Final inspection, measurements and requirements. 12
5.9 Rapid change of temperature . 12
5.9.1 General . 12
5.9.2 Initial measurement . 12
5.9.3 Conditioning . 12
5.9.4 Final inspection, measurements and requirements. 12
5.10 Vibration . 13
5.10.1 General . 13
5.10.2 Initial measurement . 13
5.10.3 Test conditions . 13
5.10.4 Final inspection, measurements and requirements. 13

IEC 62391-2:2025 © IEC 2025 – 3 –
5.11 Maintain voltage. 13
5.11.1 General . 13
5.11.2 Test conditions . 13
5.11.3 Final inspection, measurements and requirements. 13
5.12 Storage at high temperature . 13
5.12.1 General . 13
5.12.2 Initial measurement . 13
5.12.3 Test conditions . 14
5.12.4 Final inspection, measure
...