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Capacitor Standards

US and international standards for electronic components, capacitors, transducers, surge protectors, LEDs, and resistors find wide application in consumer products, vehicles, medical devices, sensors and controls for industrial use and more. A representative selection of nearly one hundred standards published in recent years covering electronic components are provided here. For even more electronic component standards search by keyword in the field above or browse the offerings of the International Electrotechnical Commission (IEC) and the Institute of Electrical and Electronics Engineers (IEEE), two standard developing organizations focused on electronics and their design, manufacture, testing, use, and end-of-life procedures. These packages include many standards related to construction and specification of electric capacitors.

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ASTM D3664-16

Standard Specification for Biaxially Oriented Polymeric Resin Film for Capacitors in Electrical Equipment

1.1 This specification covers thin biaxially oriented polymeric resin film for use in capacitors for electrical equipment. The material is biaxially oriented to improve the tensile properties in the machine (MD) and transverse (TD) directions. 1.2 The values stated in SI units are the standard. The values in parentheses are for information only. 1.3 The following safety hazards caveat pertains only to the test methods section of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements see 9.3 and Table 1 footnote B.


ASTM D748-18

Standard Specification for Natural Block Mica and Mica Films Suitable for Use in Fixed Mica-Dielectric Capacitors

1.1 This specification covers natural block mica 2 and mica films (cut and uncut) suitable for use in the manufacture of fixed mica-dielectric capacitors, based on electrical, visual, and physical properties as determined by tests specified herein. 1.2 The values stated in inch-pound units are to be regarded as standard. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


IEC 60143-1 Ed. 5.0 b:2015

Series capacitors for power systems - Part 1: General

IEC 60143-1:2015 applies both to capacitor units and capacitor banks intended to be used connected in series with an a.c. transmission or distribution line or circuit forming part of an a.c. power system having a frequency of 15 Hz to 60 Hz. The primary focus of this standard is on transmission application. The series capacitor units and banks are usually intended for high-voltage power systems. This standard is applicable to the complete voltage range. This standard does not apply to capacitors of the self-healing metallized dielectric type. The following capacitors, even if connected in series with a circuit, are excluded from this standard: - capacitors for inductive heat-generating plants (IEC 60110-1); - capacitors for motor applications and the like (IEC 60252 (all parts)); - capacitors to be used in power electronics circuits (IEC 61071); - capacitors for discharge lamps (IEC 61048 and IEC 61049). For standard types of accessories such as insulators, switches, instrument transformers, external fuses, etc. see the pertinent IEC standard. The object of this standard is: - to formulate uniform rules regarding performance, testing and rating; - to formulate specific safety rules; - to serve as a guide for installation and operation. This fifth edition cancels and replaces the fourth edition, published in 2004. This edition constitutes a technical revision. The main change with respect to the previous edition is that the endurance test has been replaced by an ageing test because voltage cycling is already performed in the cold duty test. The guide section has been expanded regarding long line correction and altitude correction. In addition the insulation tables and references to other standards have been updated. Keywords: a.c. transmission or distribution line, capacitor units and banks for high-voltage power systems


IEC 60143-2 Ed. 2.0 b:2012

Series capacitors for power systems - Part 2: Protective equipment for series capacitor banks

IEC 60143-2:2012 covers protective equipment for series capacitor banks, with a size larger than 10 Mvar per phase. Protective equipment is defined as the main circuit apparatus and ancillary equipment, which are part of a series capacitor installation, but which are external to the capacitor part itself. The recommendations for the capacitor part are given in IEC 60143-1:2004. The protective equipment is mentioned in Clause 3 and 10.6 of IEC 60143-1:2004. This second edition cancels and replaces the first edition published in 1994. It constitutes a technical revision. The main changes with respect to the previous edition are: - updated with respect to new and revised component standards; - updates with respect to technology changes. Outdated technologies have been removed, i.e. series capacitors with dual self-triggered gaps. New technologies have been added, i.e. current sensors instead of current transformers; - the testing of spark gaps has been updated to more clearly specify requirements and testing procedures. A new bypass making current test replaces the old discharge current test; - Clause 5, Guide, has been expanded with more information about different damping circuits and series capacitor protections. Keywords: protective equipment for series capacitor banks


IEC 60143-3 Ed. 2.0 b:2015

Series capacitors for power systems - Part 3: Internal fuses

IEC 60143-3:2015 applies to internal fuses designed to isolate faulty capacitor elements, to allow operation of the remaining parts of that capacitor unit and the bank in which the capacitor unit is connected. Such fuses are not a substitute for a switching device such as a circuit-breaker, or for external protection of the capacitor bank, or any part thereof. The object of this part of IEC 60143 is: - to formulate requirements regarding performance and testing; - to provide a guide for coordination of fuse and bank protection. This second edition cancels and replaces the first edition published in 1998. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: The test procedure has been largely simplified. Keywords: faulty capacitor elements, fuse and bank protection


IEC 60143-4 Ed. 1.0 b:2010

Series capacitors for power systems - Part 4: Thyristor controlled series capacitors

"IEC 60143-4:2010 specifies testing of thyristor controlled series capacitor (TCSC) installations used in series with transmission lines. This standard also addresses issues that consider ratings for TCSC thyristor valve assemblies, capacitors, and reactors as well as TCSC control characteristics, protective features, cooling system and system operation. This part of IEC 60143 is to be used in conjonction with the following standards: IEC 60143-1:2004, IEC 60143-2:1994 and IEC 60143-3:1998. "


IEC 60252-1 Ed. 2.0 b:2010

"AC motor capacitors - Part 1: General - Performance, testing and rating - Safety requirements - Guidance for installation and operation"

"IEC 60252-1:2010 applies to motor capacitors intended for connection to windings of asynchronous motors supplied from a single-phase system having a frequency up to and including 100 Hz, and to capacitors to be connected to three-phase asynchronous motors so that these motors may be supplied from a single-phase system. This standard covers impregnated or unimpregnated capacitors having a dielectric of paper, plastic film, or a combination of both, either metallized or with metal-foil electrodes, with rated voltages up to and including 660 V. This edition includes the following significant technical changes with respect to the previous edition: - the definition of ""segmented capacitors"" has been added in 3.6; - the definition of ""classes of operation"" has been clarified, with the addition of the concept of ""probable life"" with reference to statistics, in 3.9; - the following wording ""Operation above the rated voltage will reduce the life expectancy of the capacitor"" has been introduced in 6.1. - some clarifications have been added to Clause 8, Marking, mainly for small capacitors."


IEC 60252-2 Ed. 2.0 b:2010

AC motor capacitors - Part 2: Motor start capacitors

"IEC 60252-2:2010 applies to motor start capacitors intended for connection to windings of asynchronous motors supplied from a single-phase system having the frequency of the mains. Covers impregnated or unimpregnated metallized motor start capacitors having a dielectric of paper or plastic film, or a combination of both and electrolytic motor start capacitors with non-solid electrolyte, with rated voltages up to and including 660 V. The main changes with respect to the previous edition are: - definition of segmented film capacitors; - clearer definition of the purpose of d.c. conditioning in destruction test."


IEC 60301 Ed. 3.0 b:2012

Preferred diameters of wire terminations of capacitors and resistors

IEC 60301:2012 gives a series of preferred diameters of the finished wire terminations of capacitors and resistors for use in electronic equipment. This third edition cancels and replaces the second edition, published in 1971, and its Amendment 1, published in 1972, and constitutes a technical revision. The main technical changes with respect to the second edition are the following: - employment of SI units only in the normative part of this standard, causing transfer of all imperial dimensions from Table 1 to the informative Annex A, - addition of two smaller diameters of wire terminations in Table 1, and - tightening of the tolerance ranges defined by minimum and maximum diameters in Table 1.


IEC 60674-3-1 Ed. 1.1 b:2011

Plastic films for electrical purposes - Part 3: Specifications for individual materials - Sheet 1: Biaxially oriented polypropylene (PP) films for capacitors

"IEC 60674-3-1:1998+A1:2011 Gives the requirements for biaxially oriented polypropylene film having a smooth or rough surface, corona treated when required for vacuum metallization. The films are for use as dielectric in capacitors. This consolidated version consists of the first edition (1998) and its amendment 1 (2011). Therefore, no need to order amendment in addition to this publication. "


IEC 60717 Ed. 2.0 b:2012

Method for the determination of the space required by capacitors and resistors with unidirectional terminations

"IEC 60717:2012 applies to capacitors and resistors with unidirectional wire terminations intended for use in electronic equipment. This standard provides a method for determination of the space required by capacitors and resistors with unidirectional wire terminations. NOTE: Instead of measuring the actual space, it may be sufficient to ensure that a component fits into the maximum space for which it is designed. This may be achieved by means of fixed gauges. The main technical changes with respect to the first edition are the following: - employment of the millimetre-based grid, the preferred grid system given in IEC 60097, - employment of SI units only, causing deletion of the imperial dimensions from Table 1, - reduction of the tolerance on the chamfer depth in Figure 1, and - introduction of requirements on information to be given in a relevant specification. "


IEC 60871-1 Ed. 4.0 b:2014

Shunt capacitors for a.c. power systems having a rated voltage above 1 000 V - Part 1: General

IEC 60871-1:2014 is applicable to both capacitor units and capacitor banks intended to be used, particularly, for power-factor correction of a.c. power systems having a rated voltage above 1 000 V and frequencies of 15 Hz to 60 Hz. This part of IEC 60871 also applies to capacitors intended for use in power filter circuits. The object of this part of IEC 60871 is as follows: - to formulate uniform rules regarding the performance and rating of units and banks, and the testing of units; to formulate specific safety rules; - to provide a guide for installation and operation. This fourth edition cancels and replaces the third edition published in 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - the overvoltage cycling test has been moved to this standard from the IEC 60871-2; - the ranges of the standardized values of the highest voltage for equipment have been modified; - for installations installed on altitudes above 1 000 m a correction factor to all insulation requirements has been introduced; - new standard insulation tables have been defined. Keywords: capacitor units and capacitor banks, power filter circuits


IEC 60871-4 Ed. 2.0 b:2014

Shunt capacitors for AC power systems having a rated voltage above 1 000 V - Part 4: Internal fuses

IEC 60871-4:2014 applies to internal fuses which are designed to isolate faulty capacitor elements, in order to allow operation of the remaining parts of that capacitor unit and the bank in which the capacitor unit is connected. Such fuses are not a substitute for a switching device such as a circuit-breaker, or for external protection of the capacitor bank or any part thereof. The object of this part of IEC 60871 is to formulate requirements regarding performance and testing and to provide a guide for coordination of fuse protection. This second edition cancels and replaces the first edition published in 1996. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: The disconnecting requirements have been modified. Keywords: internal fuses, faulty capacitor elements, fuse protection


IEC/TS 60871-2 Ed. 3.0 b:2014

Shunt capacitors for a.c. power systems having a rated voltage above 1 000 V - Part 2: Endurance testing

IEC/TS 60871-2:2014 which is a technical specification, applies to capacitors according to IEC 60871-1 and gives the requirements for ageing tests of these capacitors. This third edition cancels and replaces the second edition published in 1999. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: The overvoltage cycling test has been moved to IEC 60871-1:2014. Keywords: ageing tests of capacitors


IEC/TS 60871-3 Ed. 2.0 en:2015

Shunt capacitors for a.c. power systems having a rated voltage above 1000 V - Part 3: Protection of shunt capacitors and shunt capacitor banks

IEC/TS 60871-3:2015(E) which is a technical specification, gives guidance on the protection of shunt capacitors and shunt capacitor banks. it applies to capacitors according to IEC 60871-1. This second edition cancels and replaces the first edition published in 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - Clearer writing of formulas on energy limitation for expulsion fuses; - Updated normative references and bibliography; - A new clause for synchronized switching has been added. Keywords: shunt capacitors, shunt capacitor banks


IEC 61881-1 Ed. 1.0 b:2010

Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 1: Paper/plastic film capacitors

"IEC 61881-1:2010 applies to capacitors for power electronics intended to be used on rolling stock. The rated voltage of capacitors is limited to 10 000 V. The operating frequency of the systems in which these capacitors are used is usually up to 15 kHz, while the pulse frequencies may be up to 5 to 10 times the operating frequency. Distinguishes between AC and DC capacitors."


IEC 61881-2 Ed. 1.0 b:2012

Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 2: Aluminium electrolytic capacitors with non-solid electrolyte

IEC 61881-2:2012 applies to d.c. aluminium electrolytic capacitors (cell, module and bank) for power electronics intended to be used on rolling stock. It specifies quality requirements and tests, safety requirements, and describes installation and operation information.


IEC 61881-3 Ed. 1.0 b:2012

Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 3: Electric double-layer capacitors

IEC 61881-3:2012 applies to d.c. electric double-layer capacitors (cell, module and bank) for power electronics intended to be used on rolling stock. It specifies quality requirements and tests, safety requirements, and describes installation and operation information.


IEC 61869-5 Ed. 1.0 b:2011

Instrument transformers - Part 5: Additional requirements for capacitor voltage transformers

"IEC 61869-5:2011 applies to new single-phase capacitor voltage transformers connected between line and ground for system voltages U m 72,5 kV at power frequencies from 15 Hz to 100 Hz. They are intended to supply a low voltage for measurement, control and protective functions. This standard replaces IEC 60044-5 regarding capacitor voltage transformers as well as IEC-PAS 60044-5 for capacitor voltage transformers. This publication is to be read in conjunction with IEC 61869-1:2007 ."


IEC 62490-1 Ed. 1.0 b:2010

ESL measuring method - Part 1: Capacitors with lead terminal for use in electronic equipment

IEC 62490-1:2010 provides the equivalent series inductance L (ESL) measuring method for capacitors with lead terminal type for use in electronic equipment. The inductance values of capacitors provided for this document are within the range of 1 nH to 10 nH.



IEC 62576 Ed. 2.0 b:2018

Electric double-layer capacitors for use in hybrid electric vehicles - Test methods for electrical characteristics

IEC 62576:2018 describes the methods for testing electrical characteristics of electric double-layer capacitor cells (hereinafter referred to as capacitor) to be used for peak power assistance in hybrid electric vehicles. This second edition cancels and replaces the first edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) information on applicability of this document has been added in Clause 1; b) the definitions of some terms in Clause 3 have been improved; c) the description of test procedures in Clause 4 has been clarified; d) information on endurance cycling test has been added (Annex E).


IEEE 1534-2009

Recommended Practice for Specifying Thyristor-Controlled Series Capacitors

Recommended practices for specifying thyristor-controlled series capacitor (TCSC) installations used in series with transmission lines are provided. Ratings for TCSC thyristor valve assemblies, capacitors, and reactors as well as TCSC control characteristics, protective features, cooling systems, testing, commissioning, training, documentation, operation, and maintenance are addressed.


IEEE 824-2004 (R2011)

IEEE Standard for Series Capacitor Banks in Power Systems

This standard represents a significant update to IEEE 824-1994. Series capacitor bank component and bank duty cycle ratings, equipment insulation levels, protective functions, component testing, instruction books, nameplates, and safety are covered in this standard.



CSA C22.2 No. 190-14 (R2019)

Capacitors for power factor correction

Preface This is the second edition of CSA C22.2 No. 190, Capacitors for power factor correction, one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code. It supersedes the first edition published in 1985. Changes to this edition include the insertion of Update 1 (December 1985) and Update 2 (January 1988) and the addition of Clause 10, and Tables 7, 8, 9, and 10. For general information on the Standards of the Canadian Electrical Code, Part II, see the preface of CAN/CSA-C22.2 No. 0. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. Scope 1.1 This Standard applies to indoor or outdoor, open or enclosed, shunt power capacitors and assemblies of shunt power capacitors with associated interconnections and supporting structures, for power factor improvement and other applications on ac power systems having voltages up to 46 kV, designed to be installed in accordance with the Rules of the Canadian Electrical Code, Part I. 1.2 The requirements of this Standard also apply to self-healing capacitor with metallized electrode for use on ac systems having a maximum voltage between phases of 1000 V and less. 1.3 In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.


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