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IEC 62391-1:2022

(Main)

Fixed electric double-layer capacitors for use in electric and electronic equipment - Part 1: Generic specification

Fixed electric double-layer capacitors for use in electric and electronic equipment - Part 1: Generic specification

IEC 62391-1:2022 applies to fixed electric double-layer capacitors (hereafter referred to as capacitors) mainly used in DC circuits of electric and electronic equipment.
This part of IEC 62391 establishes standard terms, inspection procedures and methods of test for use in sectional and detail specifications of electronic components for quality assessment or any other purpose.
This edition includes the following significant technical changes with respect to the previous edition:  
The document has been completely restructured to comply with the ISO/IEC Directives, Part 2; a new technical categorization of test methods has been introduced and the test methods have been reorganized according to these new categories; tables, figures and references have been revised accordingly.
Calculation formula of charging/discharging efficiency in Annex D were divided into two cases: "Calculation assuming full charge and discharge" and "Calculation assuming incomplete charging and discharging due to internal resistance".

Condensateurs électriques fixes à double couche utilisés dans les équipements électriques et électroniques - Partie 1: Spécification générique

L’IEC 62391-1:2022 s’applique aux condensateurs électriques fixes à double couche (appelés ci-après condensateurs) principalement utilisés dans des circuits à courant continu d’équipements électriques et électroniques.
La présente partie de l’IEC 62391 définit les termes normalisés, les procédures de contrôle et les méthodes d’essai utilisés dans les spécifications intermédiaires et particulières des composants électroniques dans le cadre de l’assurance de la qualité, ainsi qu’à d’autres fins.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:  
Le présent document a été intégralement restructuré pour satisfaire aux Directives ISO/IEC, Partie 2. De nouvelles catégories techniques des méthodes d’essai ont été introduites, les méthodes d’essai ayant été réorganisées en fonction de ces nouvelles catégories. Les tableaux, figures et références ont été révisés en conséquence.
Les formules de calcul de l’efficacité de charge/décharge de l’Annexe D ont été divisées en deux: "Calcul prenant pour hypothèse la pleine charge et la pleine décharge" et "Calcul prenant pour hypothèse une charge et une décharge incomplètes, dues à la résistance interne".

General Information

Status
Published
Publication Date
19-Oct-2022
ICS
31.060.10 - Fixed capacitors
Technical Committee
TC 40 - Capacitors and resistors for electronic equipment
Drafting Committee
MT 62391-1 - TC 40/MT 62391-1
Current Stage
PPUB - Publication issued
Start Date
28-Oct-2022
Completion Date
20-Oct-2022
Ref Project

Relations

Revises
IEC 62391-1:2015 - Fixed electric double-layer capacitors for use in electric and electronic equipment - Part 1: Generic specification
Effective Date
05-Sep-2023
Revises
IEC 62391-1:2015/COR1:2016 - Corrigendum 1 - Fixed electric double-layer capacitors for use in electric and electronic equipment - Part 1: Generic specification
Effective Date
05-Sep-2023
Revises
IEC 62391-1:2015/COR2:2019 - Corrigendum 2 - Fixed electric double-layer capacitors for use in electric and electronic equipment - Part 1: Generic specification
Effective Date
05-Sep-2023

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IEC 62391-1:2022 - Fixed electric double-layer capacitors for use in electric and electronic equipment - Part 1: Generic specification Released:10/20/2022IEC 62391-1:2022 - Fixed electric double-layer capacitors for use in electric and electronic equipment - Part 1: Generic specification Released:10/20/2022
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IEC 62391-1:2022 - Fixed electric double-layer capacitors for use in electric and electronic equipment - Part 1: Generic specification Released:10/20/2022
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IEC 62391-1 ®
Edition 3.0 2022-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fixed electric double-layer capacitors for use in electric and electronic
equipment –
Part 1: Generic specification
Condensateurs électriques fixes à double couche utilisés dans les équipements
électriques et électroniques –
Partie 1: Spécification générique

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IEC 62391-1 ®
Edition 3.0 2022-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fixed electric double-layer capacitors for use in electric and electronic

equipment –
Part 1: Generic specification
Condensateurs électriques fixes à double couche utilisés dans les équipements

électriques et électroniques –

Partie 1: Spécification générique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.10 ISBN 978-2-8322-5729-6

– 2 – IEC 62391-1:2022 © IEC 2022
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
4 General requirements . 15
4.1 Unit and symbols . 15
4.2 Preferred values and class . 15
4.2.1 General . 15
4.2.2 Preferred values of nominal capacitance . 15
4.2.3 Class . 15
4.3 Marking . 15
4.3.1 General . 15
4.3.2 Coding . 15
5 General provisions for tests and measurement procedures . 16
5.1 General . 16
5.2 Test and measurement requirements . 16
5.2.1 Test conditions . 16
5.2.2 Measurement conditions . 16
5.2.3 Voltage treatment . 16
5.2.4 Thermal treatment . 16
5.3 Drying . 16
5.4 Storage . 17
5.4.1 Storage at high temperature . 17
5.4.2 Storage at low temperature . 17
6 Electrical tests and measurements . 17
6.1 Measurement method 1 for capacitance and internal resistance (constant
current discharge) . 17
6.1.1 Basic circuit for measuring . 17
6.1.2 Measuring equipment . 18
6.1.3 Measurement procedure . 19
6.1.4 Calculation methods for capacitance . 21
6.1.5 Calculation methods for internal resistance. 22
6.1.6 Conditions to be prescribed in the detail specification . 23
6.2 Measurement method 2 for capacitance and internal resistance . 23
6.2.1 Constant resistance charging method for capacitance measurement . 23
6.2.2 AC internal resistance measurement method . 24
6.3 Leakage current . 24
6.3.1 Measurement method . 24
6.3.2 Items to be specified in the detail specification . 26
6.4 Maintain voltage. 26
6.4.1 Measurement method . 26
6.4.2 Calculation of voltage maintenance rate . 27
6.4.3 Conditions to be prescribed in the detail specification . 27
7 Mechanical tests and measurements . 27
7.1 Visual examination and check of dimensions . 27
7.1.1 Visual examination . 27

7.1.2 Dimensions (gauging) . 27
7.1.3 Dimensions (detail) . 28
7.2 Robustness of terminations . 28
7.2.1 Test Ua1 – Tensile . 28
7.2.2 Test Ub – Bending (half of the sample) . 28
7.2.3 Test Uc – Torsion (remaining sample) . 28
7.2.4 Test Ud – Torque (for terminations with threaded studs or screws and
for integral mounting devices) . 28
7.2.5 Visual examination . 29
7.3 Vibration . 29
7.3.1 Initial measurement . 29
7.3.2 Test . 29
7.3.3 Final measurement and requirements . 29
8 Environmental and climatic tests . 29
8.1 Rapid change of temperature . 29
8.1.1 Initial measurement . 29
8.1.2 Test . 29
8.1.3 Final inspection, measurements and requirements. 29
8.2 Damp heat, steady state . 30
8.2.1 Initial measurement . 30
8.2.2 Test . 30
8.2.3 Final measurement . 30
8.3 Endurance . 30
8.3.1 Initial measurements . 30
8.3.2 Test . 30
8.3.3 Final measurement, inspection and requirements . 30
8.4 Characteristics at high and low temperature . 31
8.4.1 General . 31
8.4.2 Test procedure .
...

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