IEC 60062:2016/AMD1:2019
(Amendment)Amendment 1 - Marking codes for resistors and capacitors
Amendment 1 - Marking codes for resistors and capacitors
Amendement 1 - Codes de marquage des résistances et des condensateurs
General Information
- Status
- Published
- Publication Date
- 19-Aug-2019
- Technical Committee
- TC 40 - Capacitors and resistors for electronic equipment
- Drafting Committee
- WG 39 - TC 40/WG 39
- Current Stage
- PPUB - Publication issued
- Start Date
- 20-Aug-2019
- Completion Date
- 27-Aug-2019
Relations
- Effective Date
- 05-Sep-2023
Overview
IEC 60062:2016/AMD1:2019 is an important amendment to the international standard IEC 60062, which governs marking codes for resistors and capacitors. Prepared by the International Electrotechnical Commission (IEC) technical committee 40, this amendment introduces a special two-character code system for capacitors, designed to enhance clarity and efficiency in component marking, especially for small electronic parts. This amendment addresses practical challenges in labeling, improving the legibility and standardization of capacitance markings on electronic components.
Key Topics
Special Two-Character Coding System for Capacitors
The amendment introduces a new two-character code system for marking capacitance values, tailored for capacitors utilizing E6, E12, or E24 series values. This system is particularly useful when the surface area available for marking is limited and three or more characters cannot be printed legibly.Code Composition
The special code consists of:- A code letter representing the two significant digits of the capacitance value, based on a standardized Table (Table B.1).
- A numeric code indicating the multiplier (Table B.2), which defines the unit scale (from pF to µF).
These two characters appear without spaces, creating a concise but unambiguous indication of capacitance.
Standardized Letter and Number Assignments
Table B.1 associates each letter with specific significant numbers from the E24 series (e.g., 'A' = 1.0, 'L' = 2.7, 'S' = 4.7), while Table B.2 covers multipliers (e.g., '0' = 1pF, '4' = 10nF, '7' = 10µF). The coding is case-sensitive.Compatibility and Adoption
This coding method aligns with previously established industry standards, such as ANSI/EIA 198-1 for ceramic dielectric capacitors, and has been adopted by a variety of manufacturers for surface mount devices (SMD) multilayer capacitors and small film capacitors. A similar system is also used by CENELEC for certain multilayer ceramic capacitor specifications.Example
The code L4 indicates a capacitance value of 27 nF:- 'L' represents the significant digits "2.7"
- '4' represents a multiplier of 10,000 pF (or 10 nF)
Combined, they give 2.7 × 10 nF = 27 nF.
Applications
Component Labeling in Electronic Manufacturing
This amendment provides a standardized marking framework for capacitors used in compact electronic devices where space limitations hinder traditional marking approaches.Quality Control and Inventory Management
Manufacturers and distributors benefit from consistent and concise capacitance codes, facilitating easier identification and verification during production, assembly, and maintenance.Standardization in Global Supply Chains
Harmonized marking codes help reduce confusion and errors in multinational supply chains, supporting interoperability among varied manufacturers and regions.Consumer Electronics and Industrial Equipment
Enables smaller form-factor components with legible markings suitable for consumer gadgets, automotive electronics, telecom devices, and industrial control systems.
Related Standards
IEC 60062 (Base Standard)
The core standard that defines resistor and capacitor marking codes, now extended by the 2019 amendment.ANSI/EIA 198-1
An American industry standard referenced in the amendment, detailing characteristics and requirements for ceramic dielectric capacitors, supporting compatibility for the two-character code system.CENELEC CECC 32 101 Series
European specifications on surface mount multilayer ceramic capacitors employing a similar code system with slight differences in character assignments.IEC 60063
Defines preferred number series (E6, E12, E24) used for significant digits in electronic component values, underpinning the coding tables.
Practical Value
Implementing the special two-character code system from IEC 60062:2016/AMD1:2019 offers significant benefits by ensuring:
- Reduced marking space without sacrificing readability or accuracy
- Simplified component identification and classification
- Increased industry alignment on component labeling standards
- Support for surface mount technology (SMT) trends with miniaturized parts
This amendment exemplifies the IEC’s commitment to evolving electronic component standards to meet the modern technological demands and manufacturing constraints of the industry.
Keywords: IEC 60062 amendment, capacitor marking codes, resistor and capacitor coding, special two-character code, capacitance marking, E24 series capacitors, electronic component labeling, IEC standards, surface mount capacitors, capacitor code system
Frequently Asked Questions
IEC 60062:2016/AMD1:2019 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Amendment 1 - Marking codes for resistors and capacitors". This standard covers: Amendment 1 - Marking codes for resistors and capacitors
Amendment 1 - Marking codes for resistors and capacitors
IEC 60062:2016/AMD1:2019 is classified under the following ICS (International Classification for Standards) categories: 31.020 - Electronic components in general. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 60062:2016/AMD1:2019 has the following relationships with other standards: It is inter standard links to IEC 60062:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
IEC 60062:2016/AMD1:2019 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
IEC 60062 ®
Edition 6.0 2019-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Marking codes for resistors and capacitors
Codes de marquage des résistances et des condensateurs
IEC 60062:2016-07/AMD1:2019-08(en-fr)
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IEC 60062 ®
Edition 6.0 2019-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Marking codes for resistors and capacitors
Codes de marquage des résistances et des condensateurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.020 ISBN 978-2-8322-7244-2
– 2 – IEC 60062:2016/AMD1:2019
© IEC 2019
FOREWORD
This amendment has been prepared by IEC technical committee 40: Capacitors and resistors
for electronic equipment.
The text of this amendment is based on the following documents:
CDV Report on voting
40/2622/CDV 40/2661/RVC
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
Contents
Add the following:
Annex B (informative) Special two-character code system for capacitors
Foreword
Add, as the 7th bullet, to the sentence “This edition includes the following significant technical
changes with respect to the previous edition”:
• introduction of Annex B, Special two-character code system for capacitors.
4.1 General rules
Add, after the last paragraph, the following new Note:
NOTE In addition to these general coding methods, special codes with reduced length have been established in
the market:
– a special three-character code system for resistors, see Annex A;
– a special two-character code system for capacitors, see Annex B.
Add, after Annex A and before Annex X, the following new Annex B.
© IEC 2019
Annex B
(informative)
Special two-character code system for capacitors
A special two-character code system exists for the marking of capacitance values with two
significant numbers with only two characters in total.
This code system is particularly suited for situations where the marking of capacitance values
of the E6, E12 or E24 series is desired, but the surface area available for marking does not
permit the printing of three or more characters in a sufficiently readable size, as it is required
to mark the capacitor with a regular three-character code as given in 4.3.2 of this document,
plus, possibly, other required codes.
The special two-character code is composed of:
– a code letter for the significant numbers of the capacitance value, as given in Table B.1,
directly succeeded by
– a code number for the multiplier, as given in Table B.2,
without any space in between.
Table B.1 – Coding of the significant numbers of the E24
...
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