Thermistors - Directly heated positive step-function temperature coefficient - Part 1-3: Blank detail specification - Inrush current application - Assessment level EZ
is a supplementary document to the generic specification and contains requirements for style and layout and minimum content of detail specifications. Detail specifications not complying with these requirements shall not be considered as being in accordance with IEC specifications nor shall they so be described. In the preparation of detail specifications the content of IEC 60738-1:2006,1.4 shall be taken into account. This edition contains changes with respect to the referenced subclauses of the revised Generic Specification IEC 60738-1.
Thermistoren - Direkt geheizte temperaturabhängige Widerstände mit positivem Temperaturkoeffizienten - Teil 1-3: Vordruck für Bauartspezifikation - Anwendung als Schaltelement - Bewertungsstufe EZ
Thermistances à basculement à coefficient de température positif à chauffage direct - Partie 1-3: Spécification particulière cadre - Application du courant d'appel - Niveau d'assurance de la qualité EZ
L'IEC 60738-1-3:2008 est un document annexe à la spécification générique qui contient des exigences pour le modèle, la disposition et le contenu minimal des spécifications particulières. Les spécifications particulières ne répondant pas à ces règles ne doivent pas être considérées conformes aux spécifications de l'IEC et ne doivent pas être déclarées comme telles. Dans la préparation de la spécification particulière, le contenu de 1.4 de l'IEC 60738-1:2006, doit être pris en compte. Cette édition contient des modifications des paragraphes référencés de la spécification générique révisée IEC 60738-1. Cette publication doit être lue conjointement avec la CEI 60738-1:2009.
Termistorji - Neposredno ogrevani s stopenjskim pozitivnim temperaturnim koeficientom - 1-3. del: Okvirna podrobna specifikacija - Uporaba za vklopni tok - Nivo ocenjevanja EZ (IEC 60738-1-3:2008)
Standards Content (sample)
SIST EN 60738-1-3:2008
SIST EN 60738-1-3:2002
Termistorji - Neposredno ogrevani s stopenjskim pozitivnim temperaturnim
koeficientom - 1-3. del: Okvirna podrobna specifikacija - Uporaba za vklopni tok -Nivo ocenjevanja EZ (IEC 60738-1-3:2008)
Thermistors - Directly heated positive step-function temperature coefficient - Part 1-3:
Blank detail specification - Inrush current application - Assessment level EZ (IEC 60738-1-3:2008)
Thermistoren - Direkt geheizte temperaturabhängige Widerstände mit positivem
Temperaturkoeffizienten - Teil 1-3: Vordruck für Bauartspezifikation - Anwendung alsSchaltelement - Bewertungsstufe EZ (IEC 60738-1-3:2008)
Thermistances à basculement à coefficient de température positif à chauffage direct -
Partie 1-3: Spécification particulière cadre - Application du courant d'appel - Niveaud'assurance de la qualité EZ (CEI 60738-1-3:2008)
Ta slovenski standard je istoveten z: EN 60738-1-3:2008
31.040.30 Termistorji Thermistors
SIST EN 60738-1-3:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.---------------------- Page: 1 ----------------------
ICS 31.040.30 Supersedes EN 60738-1-3:1999
Directly heated positive step-function temperature coefficient -
Part 1-3: Blank detail specification -
Inrush current application -
Assessment level EZ
Thermistances à basculement Thermistoren -
à coefficient de température positif Direkt geheizte temperaturabhängige
à chauffage direct - Widerstände mit positivem
Partie 1-3: Spécification particulière Temperaturkoeffizienten -
cadre - Teil 1-3: Vordruck für Bauartspezifikation -
Application du courant d'appel - Anwendung als Schaltelement -
Niveau d'assurance de la qualité EZ Bewertungsstufe EZ
(CEI 60738-1-3:2008) (IEC 60738-1-3:2008)
This European Standard was approved by CENELEC on 2008-03-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standardthe status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat 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 notifiedto the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,Sweden, Switzerland and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 60738-1-3:2008 E
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EN 60738-1-3:2008 - 2 -
The text of document 40/1876/FDIS, future edition 2 of IEC 60738-1-3, prepared by IEC TC 40,
Capacitors and resistors for electronic equipment, was submitted to the IEC-CENELEC parallel vote andwas approved by CENELEC as EN 60738-1-3 on 2008-03-01.
This European Standard supersedes EN 60738-1-3:1999.
EN 60738-1-3:2008 contains changes with respect to the referenced subclauses of the revised genericspecification EN 60738-1.
This standard is to be used in conjunction with EN 60738-1.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2008-12-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-03-01
Annex ZA has been added by CENELEC.
The text of the International Standard IEC 60738-1-3:2008 was approved by CENELEC as a EuropeanStandard without any modification.
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- 3 - EN 60738-1-3:2008
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenceddocument (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HDapplies.
Publication Year Title EN/HD Year
IEC 60068-2-58 - Environmental testing - EN 60068-2-58 2004
Part 2-58: Tests - Test Td: Test methods for + corr. December 2004
solderability, resistance to dissolution of
metallization and to soldering heat of surface
mounting devices (SMD)
IEC 60410 1973 Sampling plans and procedures for inspection - -
IEC 60738-1 2006 Thermistors - Directly heated positive EN 60738-1 2006
temperature coefficient -
Part 1: Generic specification
Valid edition at date of issue.
---------------------- Page: 4 ----------------------
Edition 2.0 2008-02
Thermistors – Directly heated positive step-function temperature coefficient –
Part 1-3: Blank detail specification – Inrush current application – Assessment
ICS 31.040.30 ISBN 2-8318-9575-8
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– 2 – 60738-1-3 © IEC:2008(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
DIRECTLY HEATED POSITIVE STEP-FUNCTION
TEMPERATURE COEFFICIENT –
Part 1-3: Blank detail specification –
Inrush current application –
Assessment level EZ
1) 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 byagreement between the two organizations.
2) 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 allinterested IEC National Committees.
3) 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 anymisinterpretation by any end user.
4) 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 inthe latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for anyequipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) 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 IECPublications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications isindispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60738-1-3 has been prepared by IEC technical committee 40:Capacitors and resistors for electronic equipment.
This second edition cancels and replaces the first edition issued in 1998. It constitutes atechnical revision.
This edition contains changes with respect to the referenced subclauses of the revised GenericSpecification IEC 60738-1.
This publication is to be read in conjunction with IEC 60738-1
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60738-1-3 © IEC:2008(E) – 3 –
The text of this standard is based on the following documents:
FDIS Report on voting
Full information on the voting for the approval of this standard can be found in the report onvoting indicated in the above table.
The QC number that appears on the front cover of this publication is the specification numberin the IEC Quality Assessment System for Electronic Components (IECQ).
The list of all parts of the IEC 60738 series, under the (new) general title Thermistors – Directly
heated positive step-function temperature coefficient, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the datarelated to the specific publication. At this date, the publication will be
• replaced by a revised edition, or
A bilingual version of this publication may be issued at a later date.
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– 4 – 60738-1-3 © IEC:2008(E)
Blank detail specification
A blank detail specification is a supplementary document to the generic specification and
contains requirements for style and layout and minimum content of detail specifications. Detail
specifications not complying with these requirements shall not be considered as being inaccordance with IEC specifications nor shall they so be described.
In the preparation of detail specifications the content of IEC 60738-1:2006,1.4 shall be takeninto account.
The numbers between brackets on the first page correspond to the following information whichshall be inserted in the position indicated.
Identification of the detail specification
 The "International Electrotechnical Commission" or the National Standards Organizationunder whose authority the detail specification is drafted.
 The IEC or National Standards number of the detail specification, date of issue and anyfurther information required by the national system.
 The number and issue number of the IEC or national generic specification.
 The IEC number of the blank detail specification.
Identification of the thermistor
 A short description of the type of thermistor.
 Information on typical construction (if applicable).
NOTE When the thermistor is not designed for use on printed boards, this should clearly be stated in the detailspecification in this position.
 Outline drawing with main dimensions which are of importance for interchangeability
and/or reference to the national or international documents for outlines. Alternatively, thisdrawing may be given in an annex to the detail specification.
 Application or group of applications covered and/or assessment level.
 Reference data on the most important properties, to allow comparison between the variousthermistor types.
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60738-1-3 © IEC:2008(E) – 5 –
 IEC 60738-1-3-XXX 
ELECTRONIC COMPONENTS OF ASSESSED IEC 60738-1-3 
QUALITY IN ACCORDANCE WITH: QC 440003
 DIRECTLY HEATED POSITIVE
COEFFICIENT THERMISTORS 
Outline drawing: [see 1.2] FOR INRUSH CURRENT
[... angle projection] APPLICATION
MODIFIED FERRO-ELECTRIC 
 CERAMIC MATERIAL
[Other shapes are permitted within the dimensions
Assessment level: EZ 
Information on the availability of components
qualified to this detail specification is given in
the Register of Approvals.
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– 6 – 60738-1-3 © IEC:2008(E)
DIRECTLY HEATED POSITIVE STEP-FUNCTION
TEMPERATURE COEFFICIENT –
Part 1-3: Blank detail specification