National foreword

This British Standard is the UK implementation of EN IEC 60115‑8‑10:2026. It is identical to IEC 60115‑8‑10:2026. It supersedes BS EN 60115‑8‑1:2015, which will be withdrawn on 31 October 2029.

Contractual and legal considerations

This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will be made, and no responsibility or liability is or will be accepted by BSI in relation to the adequacy, accuracy, completeness or reasonableness of this publication. All and any such responsibility and liability is expressly disclaimed to the full extent permitted by the law.

This publication is provided as is, and is to be used at the recipient’s own risk.

The recipient is advised to consider seeking professional guidance with respect to its use of this publication.

This publication is not intended to constitute a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2026.

This European Standard was approved by CENELEC on 23 October 2026. 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, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and United Kingdom.

European foreword

The text of document 40/3264/CDV, future edition 1 of IEC 60115‑8‑10, 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 60115‑8‑10:2026.

The following dates are fixed:

This document supersedes EN 60115‑8‑1:2015 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.

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 60115‑8‑10:2026 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:

FOREWORD

The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user.
In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies.
All users should ensure that they have the latest edition of this publication.
No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication.
IEC draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which may be required to implement this document. However, implementers are cautioned that this may not represent the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC shall not be held responsible for identifying any or all such patent rights.

IEC 60115-8-10 has been prepared by IEC technical committee 40: Capacitors and resistors for electronic equipment. It is an International Standard.

This edition includes the following significant technical changes with respect to the previous edition IEC 60115‑8‑1:2014:

it supports solderability testing for both traditional lead-bearing soldering and up-to-date lead-free soldering, as required;
it supports the provision of detailed visual acceptance criteria;
it includes the requirement for a visual examination of the primary and proximity packaging;
it provides for the inclusion of specific visual acceptance criteria, to be applied in addition to those given in Annex B of the sectional specification IEC 60115‑8:2023.

The text of this International Standard is based on the following documents:

Full information on the voting for its approval can be found in the report on voting indicated in the above table.

The language used for the development of this International Standard is English.

A list of all parts in the IEC 60115 series, published under the general title Fixed resistors for use in electronic equipment, can be found on the IEC website.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are described in greater detail at www.iec.ch/publications.

The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under webstore.iec.ch in the data related to the specific document. At this date, the document will be

reconfirmed,
withdrawn, or
revised.

INTRODUCTION

0 Introduction to the template provided by this blank detail specification

COMMENT

This introduction is not intended to be copied into the drafted detail specification. Therefore, it is positioned in front of the conventional document structure and clause numbering range. It nevertheless contains normative requirements to the drafted detail specification.

0.1 Scope of this blank detail specification

This part of IEC 60115‑8 is applicable to the drafting of detail specifications for surface mount (SMD) low-power film resistors, classified to level G, based on the definition of the product classification levels in IEC 60115‑1:2020, 3.4.

Another part of IEC 60115‑8 provides a separate blank detail specification for the drafting of detail specifications for surface mount (SMD) low-power film resistors, classified to level P and to level R.

Yet other parts of IEC 60115‑8 may be issued to provide blank detail specifications for the drafting of detail specifications for surface mount (SMD) resistors, of other technologies or of other classification levels.

0.2 Function of this blank detail specification

A blank detail specification is a supplementary document to the sectional specification and contains requirements for style, layout and minimum contents of detail specifications. Detail specifications not complying with these requirements shall not be accepted as being in accordance with IEC specifications nor shall they be described as such.

Detail specifications complying with the requirements of this blank detail specification are a legitimate basis for the quality assessment of leaded fixed low-power film resistors under an adequate quality assessment system, e.g. the IEC Quality Assessment System for Electronic Components (IECQ System), whereas the plain blank detail specification is not a suitable basis.

The detail specification should contain a table of contents prior the first page of the actual specification.

In the preparation of the detail specification, the content of IEC 60115‑8:2023, 8.2 shall be taken into account. The detail specification should be written by using the preferred values given in IEC 60115‑8.

Units, graphical symbols and letter symbols shall, whenever possible, be taken from those prescribed by the following standards:

IEC 60027‑1, Letter symbols to be used in electrical technology - Part 1: General
IEC 60617, Graphical symbols for diagrams
IEC 80000 (all parts), Quantities and units
ISO 80000 (all parts), Quantities and units

This blank detail specification uses for its purpose two different kinds of notes:

0.3 Identification of the detail specification and the resistor

The first page of the detail specification should have a layout starting with a title block as recommended on the following page.

The numbers in square brackets are editorial references, which are not intended to be copied into the drafted detail specification, and which correspond to the following information on the contents which shall be inserted in the indicated fields.

The name of the standardisation organisation under whose authority the detail specification is published and, if applicable, the organization from whom the detail specification is available.
The number allocated to the detail specification by the IEC or by the responsible standardisation organisation, together with the date of issue and issue number, as applicable. Further reference details required by the responsible standardisation organisation or quality assessment system may be given here, including an established mark of conformity, as applicable.
The number and issue date and number, as applicable, of the relevant generic specification, sectional specification and blank detail specification, where the referenced issues shall be the most recent issues of the respective specifications.
The title of the detail specification, providing a short description of the type of resistors.
This entry should support the discrimination between similar specifications and should be suitable for an entry in a register of approvals or in a catalogue of standards. It may duplicate information given in fields [6] and [7] and in the textual scope in Clause 1.
An outline drawing or illustration of the products. This entry should aid the easy recognition of the specified resistors and, if possible, support the discrimination between similar specifications. It may duplicate information given in Figure 1.
Information on the typical construction of the resistors (where applicable), information of the specified resistors being insulated or non-insulated (see IEC 60115‑1:2020, 3.1.7), and information on compatibility with a specific soldering process (if applicable, see 8.4). This entry may duplicate information given in the textual scope in Clause 1.
The classification level of the resistors covered by this detail specification, the level of quality assessment (Assessment level EZ), and the general level of stability requirements at performance tests (Stability class).
This information may duplicate information given in the textual scope in Clause 1.
Optional field for table notes.
Statement(s) about the availability of information on components qualified to this detail specification, if applied within a full quality assessment system.
Example for the use within the IECQ system:
Information about components qualified to this detail specification is available in the approvals section of the website http://www.iecq.org.

COMMENT

The remainder of this page is intentionally left empty in order to start Clause 1 on top of the next page.

1 Scope

COMMENT

The text of this clause may repeat information already given in some fields of the above title block. Essential information on the special type of components covered by the drafted detail specification may be added, preferably at the place marked with "…".

This detail specification specifies the characteristics and ratings of surface mount (SMD) film resistors for use in electronic equipment, which are typically assembled on the surface of circuit boards.

...

The resistors covered herein are classified to level G, as defined in IEC 60115‑1:2020, 3.4 for general electronic equipment, typically operated under benign or moderate environmental conditions, where the major requirement is function. Examples for level G include consumer products and telecommunication user terminals.

This detail specification is based upon the blank detail specification IEC 60115-8-10:2026.

This detail specification establishes test schedules and performance requirements permitting the quality assessment of the resistors covered herein according to the quality assessment procedures prescribed by IEC 60115‑1:2020, Annex Q.

2 Normative references

3 Terms and definitions

4 Characteristics and ratings

4.1 General

4.2 Dimensions

4.3 Ratings

4.4 Resistance range and tolerance on resistance

5 Tests and test severities

5.1 General

5.2 Resistance

5.3 Temperature coefficient of resistance

5.4 Temperature rise

5.5 Endurance at the rated temperature 70 °C

5.6 Endurance at a maximum temperature: UCT

5.7 Short-term overload

5.8 Electrostatic discharge (ESD) test

5.9 Visual examination

5.10 Gauging of dimensions

5.11 Detail dimensions

5.12 Shear (adhesion) test

5.13 Substrate bending test

5.14 Rapid change of temperature

5.15 Climatic sequence

5.16 Damp heat, steady state

5.17 Solderability, with lead-free solder

5.18 Solderability, with SnPb solder

5.19 Resistance to soldering heat

5.20 Solvent resistance

5.21 Insulation resistance

5.22 Voltage proof

5.23 Flammability

6 Performance requirements

6.1 General

6.2 Limits for change of resistance at tests

6.3 Temperature coefficient of resistance

6.4 Temperature rise

6.5 Visual examination

6.6 Solderability

6.7 Insulation resistance

6.8 Flammability

7 Marking, packaging and ordering information

7.1 Marking of the component

7.2 Packaging

7.3 Marking of the packaging

7.4 Ordering information

8 Additional information

8.1 General

8.2 Storage and transportation

8.3 Substrate for assembly

8.4 Soldering process

8.5 Use of cleaning agents or solvents

8.6 Coating or potting after assembly

9 Quality assessment procedures

9.1 General

9.2 Qualification approval

9.3 Maintenance of a qualification approval

Bibliography