IEC 62813:2025 PDF

Name: IEC 62813:2025 — Lithium ion capacitors for use in electric and electronic equipment - Test methods for electrical characteristics
SKU: IEC 62813:2025
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Lithium ion capacitors for use in electric and electronic equipment - Test methods for electrical characteristics

Название (английский):

IEC 62813:2025

Lithium ion capacitors for use in electric and electronic equipment - Test methods for electrical characteristics

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 70
Дата публикации:: 17 января 2025 г.
Издание:: IEC IS 62813 edition 2 version 1
ICS:: 31.060.99

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Описание (английский):

IEC 62813:2025 specifies the electrical characteristics (capacitance, internal resistance, discharge accumulated electric energy, and voltage maintenance rate) test methods of lithium-ion capacitors (LIC) for use in electric and electronic equipment. This edition includes the following significant technical changes with respect to the previous edition: a) The document has been restructured to comply with the ISO/IEC Directives, Part 2.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты IEC

Overview

IEC 62813:2025 - "Lithium‑ion capacitors for use in electric and electronic equipment - Test methods for electrical characteristics" - is the 2nd edition international standard that defines standardized test methods for the electrical characteristics of lithium‑ion capacitors (LIC). It specifies how to measure capacitance, internal resistance, discharge accumulated electric energy, and voltage maintenance rate for LICs intended for electric and electronic equipment. This edition has been restructured to align with the ISO/IEC Directives, Part 2.

Key topics and technical requirements

Scope and terminology: clear definitions for terms such as rated voltage, rated lower‑limit voltage, calculation start/end times, and instant drop voltage to ensure consistent interpretation across tests.

Test requirements:

Standard atmospheric conditions for tests and measurements.
Pre‑conditioning procedures (charging/discharging and storage) prior to measurement.

Measurement methods:

Procedures and basic test circuits for measuring capacitance, internal resistance and discharge accumulated energy (figures and voltage profiles illustrate test sequences).
Specific method for measuring voltage maintenance rate with a defined voltage‑profile circuit.

Calculations:

Formulas and calculation windows for converting measured voltages/currents into capacitance, energy and internal resistance values.
Calculation of voltage maintenance rate over defined intervals.

Informative annexes:

Annex A: Endurance test - continuous application of rated voltage at high temperature.
Annex B: Measurement error propagation and guidance for selecting measuring currents.
Annex C: Procedures and flowchart for defining measuring currents when nominal internal resistance is uncertain.

Normative reference: IEC 60068‑1 (environmental testing - general and guidance) is cited for environmental test contexts.

Practical applications and users

Who uses IEC 62813:2025:

LIC manufacturers - to validate product specifications, declare nominal capacitance/internal resistance, and set manufacturing test plans.

Component test laboratories - to perform repeatable, standards‑compliant electrical characterization and reportable data.

OEMs and electronic system designers - to verify component selection for energy storage, power buffering, and lifetime expectations.

Quality assurance and reliability engineers - for production acceptance testing, aging/endurance verification, and failure analysis.

Certification and procurement teams - to specify test-based acceptance criteria in contracts and compliance documentation.

Why it matters:

Ensures reproducible, comparable measurements across labs and suppliers.

Supports reliable system design, safety assessments, and procurement specifications.

Helps set appropriate test currents and account for measurement uncertainty using the standard’s annex guidance.

Related standards and resources

IEC 60068‑1 (referenced for environmental conditions)

IEC Electropedia and IEC TC 40 publications for related terminology and capacitor/resistor test guidance

Keywords: IEC 62813:2025, lithium‑ion capacitors, LIC test methods, capacitance measurement, internal resistance, discharge accumulated electric energy, voltage maintenance rate, electrical characteristics.

IEC 62813:2025 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and users

Related standards and resources

Технические детали

IEC 60068-1:2013

Environmental testing - Part 1: General and guidance

IEC 60050-161:1990/AMD2:1998

Amendment 2 - International Electrotechnical Vocabulary (IEV) - Part 161: Electromagnetic compatibility

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