IEC 62319-1-1:2005

Polymeric thermistors - Directly heated positive step function temperature coefficient - Part 1-1: Blank detail specification - Current limiting application

IEC 62319-1-1:2005 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.

Thermistances polymères - Coefficient de température positif de fonction échelon à chauffage direct - Partie 1-1: Spécification particulière cadre - Application de la limitation de courant

La CEI 62319-1-1:2005 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 la CEI et ne doivent pas être déclarées comme telles.

General Information

• Status: Published
• Publication Date: 14-Feb-2005
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 31.040.30 - Thermistors
• Technical Committee: TC 40 - Capacitors and resistors for electronic equipment
• Current Stage: PPUB - Publication issued
• Start Date: 15-Apr-2005
• Completion Date: 15-Feb-2005

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 62319-1-1
First edition
2005-02
Polymeric thermistors –
Directly heated positive step function
temperature coefficient –
Part 1-1:
Blank detail specification –
Current limiting application
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,
edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
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thus ensuring that the content reflects current technology. Information relating to
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publications (see below) in addition to new editions, amendments and corrigenda.
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by the technical committee which has prepared this publication, as well as the list
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INTERNATIONAL IEC
STANDARD 62319-1-1
First edition
2005-02
Polymeric thermistors –
Directly heated positive step function
temperature coefficient –
Part 1-1:
Blank detail specification –
Current limiting application
 IEC 2005  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
M
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 62319-1-1  IEC:2005(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
POLYMERIC THERMISTORS –
DIRECTLY HEATED POSITIVE STEP FUNCTION
TEMPERATURE COEFFICIENT –
Part 1-1: Blank detail specification –
Current limiting application
FOREWORD
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 by
agreement 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 all
interested 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 any
misinterpretation 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 in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment 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 IEC
Publications.
8) 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.
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 62319-1-1 has been prepared by IEC technical committee 40:
Capacitors and resistors for electronic equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
40/1506/FDIS 40/1535/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

62319-1-1  IEC:2005(E) – 3 –
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 data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

– 4 – 62319-1-1  IEC:2005(E)
POLYMERIC THERMISTORS –
DIRECTLY HEATED POSITIVE STEP FUNCTION
TEMPERATURE COEFFICIENT –
Part 1-1: Blank detail specification –
Current limiting application
INTRODUCTION
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 in
accordance with IEC specifications nor shall they so be described.
In the preparation of detail specifications, the content of 4.1 of the generic specification shall
be taken into account.
The numbers between brackets on the first page correspond to the following information
which shall be inserted in the position indicated.
Identification of the detail specification

[1] The “International Electrotechnical Commission” or the National Organisation under
whose authority the detail specification is drafted.
[2] The IEC or National Standards number of the detail specification, date of issue and any
other information required by the national system.
[3] The number and issue number of the IEC or national generic specification.
[4] The IEC number of the blank detail specification.

Identification of the thermistor

[5] A short description of the type of thermistor.
[6] Information on typical construction (if applicable).
NOTE When the thermistor is not designed for use on printed boards, this should be stated in the detail
specification in this position.
[7] Outline drawing with main dimensions which are important for the interchangeability
and/or reference to the national or international documents for outlines. Alternatively, this
drawing may be given in the annex to the detail specification.
[8] Application or group of applications covered and/or assessment level.
[9] Reference data on the most important properties, to allow comparison between the various
thermistor types.
62319-1-1  IEC:2005(E) – 5 –
[1] IEC 62319-1-1-XXX [2]
QC XXXXXX-XXX
ELECTRONIC COMPONENTS OF ASSESSED QUALITY IN IEC 62319-1-1 [4]
ACCORDANCE WITH: QC XXXXXX
[3]
POLYMERIC POSITIVE
TEMPERATURE COEFFICIENT [5]
THERMISTORS FOR CURRENT
Outline drawing: (see Table 1)
LIMITING APPLICATION
(… angle projection)
[7]
[6]
Assessment level(s): EZ [8]
(Other shapes are permitted within the dimensions given)

NOTE For [1] to [9] see preceding page.

Information on the availability of components qualified to
[9]
this detail specification is given in IEC QC 001005.

1 General data
1.1 Method(s) of mounting (to be inserted)
See 4.9 of IEC 62319-1.
1.2 Dimensions
All dimensions are in millimetres or inches and millimetres; it shall be stated which
dimensions are suitable for gauging.
Dimensional drawing(s) shall be given in the detail specification. If necessary, the dimensions
may be listed in tabular form with reference to styles or codes.
1.3 Normative references
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 referenced document (including any amendments) applies.
IEC 60068, Environmental testing
IEC 60410, Sampling plans and procedures for inspection by attributes
IEC 62319-1; Polymeric thermistors – Driectly heated positive step function temperature
coefficient – Part 1: Generic specification

___________
To be published.
– 6 – 62319-1-1  IEC:2005(E)
1.4 Coating
The detail specification shall state (if applicable):
a) whether the coating is insulating or non-insulating;
b) the material;
c) the colour, if applicable.
1.5 Terminations
The detail specification shall state whether the terminations are suitable for soldering. If they
are not, suitable methods of connection shall be stated for example: welding, clamping or
crimping.
1.6 Flammability
The detail specification shall state whether the thermistor is actively or passively flammable, if
applicable.
1.7 Resistance to solvents
The detail specification shall state whether the coating and the marking of the thermistor are
solvent resistant, if applicable.
1.8 Packaging
The detail specification shall give the following information (if required):
a) whether bulk packed or taped and if taped, drawing or references;
b) the dimensions of the immediate packaging and the number of thermistors packed;
c) the dimensions of the outer package and the number of immediate packages;
d) methods of disposal of the packaging material.
1.9 Electrical data/ratings and characteristics
The detail specification shall give the units and tolerances or limiting values for the following
parameters, if applicable. If necessary, electrical data may be listed in tabular form, with
reference to style and codes.
Operating temperature range
Maximum voltage (U )
max
Zero power resistance (R )
t
Isolation voltage (insulated thermistors only)
Insulation resistance (insulated thermistors only)
Trip current (I )
t
Hold current (I )
h
Residual current at U (I )
max res
Maximum current (I )
max
Time-to-trip (t )
trip
Fault current (I )
fault
Power dissipation (P )
d
62319-1-1  IEC:2005(E) – 7 –
1.10 Marking
The marking of the thermistors and package containing the thermistors shall be in accordance
with the requirements of 2.4 of the generic specification IEC 62319-1.
The details of the marking of the thermistors and package containing the thermistors shall be
given in full in the detail specification.
1.11 Ordering information
Orders for thermistors covered by this specification shall contain the number and issue
reference of the detail specification.
1.12 Additional information (not for inspection purposes)
1.13 Additional or increased severities or requirements to those specified in the
generic specification
NOTE Additions or increased requirements should be specified only when essential.
2 Inspection requirements
2.1 Procedures
2.1.1 For qualification approval, the procedures shall be in accordance with the generic
specification IEC 62319-1.
2.1.2 For quality conformance inspection, the test schedules (Tables 1 and 2) include
sampling, periodicity, severities and requirements. The formation of inspection lots is covered
by 3.5.7 of the generic specification.
The following list applies to the test schedules developed in Tables 1 and 2:
1) Subclause numbers of tests and performance requirements refer to the generic
specification IEC 62319-1 and Clause 1 of this specification.
2) Number to be tested: sample size as directly allotted to the code letter for IL in Table IIA
of IEC 60410 (single sampling plan for normal inspection).
3) In these tables: p is the periodicity (in months);
n is the sample size;
c is the acceptance criteria (permitted number of non-conforming
items);
D indicates a destructive test;
ND indicates a non-destructive test;
IL is the inspection level.
4) The temperature at which the zero power resistance shall be measured is the temperature
specified in
...

IEC 62319-1-1 ®
Edition 1.0 2005-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Polymeric thermistors – Directly heated positive step function temperature
coefficient –
Part 1-1: Blank detail specification – Current limiting application

Thermistances polymères – Coefficient de température positif de fonction
échelon à chauffage direct –
Partie 1-1: Spécification particulière cadre – Application de la limitation de
courant
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IEC 62319-1-1 ®
Edition 1.0 2005-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Polymeric thermistors – Directly heated positive step function temperature

coefficient –
Part 1-1: Blank detail specification – Current limiting application

Thermistances polymères – Coefficient de température positif de fonction

échelon à chauffage direct –
Partie 1-1: Spécification particulière cadre – Application de la limitation de

courant
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX M
ICS 31.040.30 ISBN 978-2-83220-726-0

– 2 – 62319-1-1  IEC:2005
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
POLYMERIC THERMISTORS –
DIRECTLY HEATED POSITIVE STEP FUNCTION
TEMPERATURE COEFFICIENT –
Part 1-1: Blank detail specification –
Current limiting application
FOREWORD
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 by
agreement 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 all
interested 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 any
misinterpretation 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 in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment 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 IEC
Publications.
8) 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.
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 62319-1-1 has been prepared by IEC technical committee 40:
Capacitors and resistors for electronic equipment.
This bilingual version (2013-05) corresponds to the monolingual English version, published in
2005-02.
The text of this standard is based on the following documents:
FDIS Report on voting
40/1506/FDIS 40/1535/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

62319-1-1  IEC:2005 – 3 –
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
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 data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
– 4 – 62319-1-1  IEC:2005
POLYMERIC THERMISTORS –
DIRECTLY HEATED POSITIVE STEP FUNCTION
TEMPERATURE COEFFICIENT –
Part 1-1: Blank detail specification –
Current limiting application
INTRODUCTION
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 in
accordance with IEC specifications nor shall they so be described.
In the preparation of detail specifications, the content of 4.1 of the generic specification shall
be taken into account.
The numbers between brackets on the first page correspond to the following information
which shall be inserted in the position indicated.
Identification of the detail specification

[1] The “International Electrotechnical Commission” or the National Organisation under
whose authority the detail specification is drafted.
[2] The IEC or National Standards number of the detail specification, date of issue and any
other information required by the national system.
[3] The number and issue number of the IEC or national generic specification.
[4] The IEC number of the blank detail specification.

Identification of the thermistor

[5] A short description of the type of thermistor.
[6] Information on typical construction (if applicable).
NOTE When the thermistor is not designed for use on printed boards, this should be stated in the detail
specification in this position.
[7] Outline drawing with main dimensions which are important for the interchangeability
and/or reference to the national or international documents for outlines. Alternatively, this
drawing may be given in the annex to the detail specification.
[8] Application or group of applications covered and/or assessment level.
[9] Reference data on the most important properties, to allow comparison between the various
thermistor types.
62319-1-1  IEC:2005 – 5 –
[1] IEC 62319-1-1-XXX [2]
QC XXXXXX-XXX
ELECTRONIC COMPONENTS OF ASSESSED QUALITY IN IEC 62319-1-1 [4]
ACCORDANCE WITH: QC XXXXXX
[3]
POLYMERIC POSITIVE
TEMPERATURE COEFFICIENT [5]
THERMISTORS FOR CURRENT
Outline drawing: (see Table 1)
LIMITING APPLICATION
(… angle projection)
[7]
[6]
Assessment level(s): EZ [8]
(Other shapes are permitted within the dimensions given)

NOTE For [1] to [9] see preceding page.

Information on the availability of components qualified to
[9]
this detail specification is given in IEC QC 001005.

1 General data
1.1 Method(s) of mounting (to be inserted)
See 4.9 of IEC 62319-1.
1.2 Dimensions
All dimensions are in millimetres or inches and millimetres; it shall be stated which
dimensions are suitable for gauging.
Dimensional drawing(s) shall be given in the detail specification. If necessary, the dimensions
may be listed in tabular form with reference to styles or codes.
1.3 Normative references
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 referenced document (including any amendments) applies.
IEC 60068, Environmental testing
IEC 60410, Sampling plans and procedures for inspection by attributes
IEC 62319-1; Polymeric thermistors – Directly heated positive step function temperature
coefficient – Part 1: Generic specification

___________
To be published.
– 6 – 62319-1-1  IEC:2005
1.4 Coating
The detail specification shall state (if applicable):
a) whether the coating is insulating or non-insulating;
b) the material;
c) the colour, if applicable.
1.5 Terminations
The detail specification shall state whether the terminations are suitable for soldering. If they
are not, suitable methods of connection shall be stated for example: welding, clamping or
crimping.
1.6 Flammability
The detail specification shall state whether the thermistor is actively or passively flammable, if
applicable.
1.7 Resistance to solvents
The detail specification shall state whether the coating and the marking of the thermistor are
solvent resistant, if applicable.
1.8 Packaging
The detail specification shall give the following information (i
...