1、 IEC 60738-1-2 Edition 2.0 2008-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Thermistors Directly heated positive step-function temperature coefficient Part 1-2: Blank detail specification Heating element application Assessment level EZ Thermistances Coefficient de temprature positif de fonction c
2、helon chauffage direct Partie 1-2: Spcification particulire cadre Application de llment chauffant Niveau dassurance de la qualit EZ IEC 60738-1-2:2008-02(EN-FR) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2008 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of
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20、tion 2.0 2008-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Thermistors Directly heated positive step-function temperature coefficient Part 1-2: Blank detail specification Heating element application Assessment level EZ Thermistances Coefficient de temprature positif de fonction chelon chauffage di
21、rect Partie 1-2: Spcification particulire cadre Application de llment chauffant Niveau dassurance de la qualit EZ INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE M ICS 31.040.30 PRICE CODE CODE PRIX ISBN 978-2-8322-1317-9 Registered trademark of the International
22、 Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 60738-1-2 IEC:2008 INTER
23、NATIONAL ELECTROTECHNICAL COMMISSION _ THERMISTORS DIRECTLY HEATED POSITIVE STEP-FUNCTION TEMPERATURE COEFFICIENT Part 1-2: Blank detail specification Heating element application Assessment level EZ FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for stand
24、ardization 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 Int
25、ernational 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 participa
26、te 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 betwee
27、n 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
28、 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
29、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 n
30、ational 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 edit
31、ion 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 dir
32、ect 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 indispens
33、able 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 60738-1-2
34、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 a technical revision. This edition contains changes with respect to the referenced subclauses of the revised g
35、eneric specification IEC 60738-1. This publication is to be read in conjunction with IEC 60738-1. 60738-1-2 IEC:2008 3 This bilingual version (2014-01) corresponds to the monolingual English version, published in 2008-02. The text of this standard is based on the following documents: FDIS Report on
36、voting 40/1875/FDIS 40/1892/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. The French version of this standard has not been voted upon. The list of all parts of the IEC 60738 series, under the (new) general titl
37、e 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 da
38、ta related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 4 60738-1-2 IEC:2008 INTRODUCTION Blank detail specification A blank detail specification is a supplementary document to the generic specification and cont
39、ains 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 cont
40、ent of IEC 60738-1:2006, 1.4 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 Nati
41、onal Standards Organization under whose authority the detail specification is drafted. 2 The IEC or National Standards number of the detail specification, date of issue and any further information required by the national system. 3 The number and issue number of the IEC or national generic specifica
42、tion. 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 clearly be stated in the
43、detail specification in this position. 7 Outline drawing with main dimensions which are of importance for interchangeability and/or reference to the national or international documents for outlines. Alternatively, this drawing may be given in an annex to the detail specification. 8 Application or gr
44、oup of applications covered and/or assessment level. 9 Reference data on the most important properties, to allow comparison between the various thermistor types. 60738-1-2 IEC:2008 5 1 IEC 60738-1-2-XXX 2 QC 440002 ELECTRONIC COMPONENTS OF ASSESSED IEC 60738-1-2 4 QUALITY IN ACCORDANCE WITH: QC 4400
45、02 3 DIRECTLY HEATED POSITIVE STEP-FUNCTION TEMPERATURE COEFFICIENT THERMISTORS 5 Outline drawing: see 1.2 FOR HEATING ELEMENT . angle projection APPLICATION MODIFIED FERRO-ELECTRIC 6 7 CERAMIC MATERIAL Other shapes are permitted within the dimensions given Assessment level: EZ 8 Information on the
46、availability of components qualified to this detail specification is given in the Register of Approvals. 9 6 60738-1-2 IEC:2008 THERMISTORS DIRECTLY HEATED POSITIVE STEP-FUNCTION TEMPERATURE COEFFICIENT Part 1-2: Blank detail specification Heating element application Assessment level EZ 1 General da
47、ta 1.1 Method(s) of mounting (to be inserted) (See IEC 60738-1:2006, 7.30). 1.2 Dimensions (All dimensions are in millimetres or inches and millimetres; it shall be stated which dimensions are suitable for gauging). Dimensioned drawing(s) shall be given in the detail specification. If necessary, the
48、 dimensions may be listed in tabular form with reference to styles or codes. 1.3 Coating The detail specification shall state a) whether the thermistor is insulated or non-insulated, b) the material, c) the colour, if applicable. 1.4 Terminations The detail specification shall state whether the term
49、inations are suitable for soldering. If they are not, suitable methods of connection shall be stated for example: welding, clamping or crimping. 1.5 Flammability The detail specification shall state whether the thermistor is actively or passively flammable if applicable. The test method shall be given in the test schedule. 1.6 Resistance to sol
