欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    IEC 60539-2 Edition 1.1-2010 Directly heated negative temperature coefficient thermistors - Part 2 Sectional specification - Surface mount negative temperature .pdf

    • 资源ID:1241278       资源大小:1.10MB        全文页数:46页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    IEC 60539-2 Edition 1.1-2010 Directly heated negative temperature coefficient thermistors - Part 2 Sectional specification - Surface mount negative temperature .pdf

    1、 IEC 60539-2 Edition 1.1 2010-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Directly heated negative temperature coefficient thermistors Part 2: Sectional specification Surface mount negative temperature coefficient thermistors Thermistances coefficient de temprature ngatif chauffage direct Partie

    2、2: Spcification intermdiaire Thermistances coefficient de temprature ngatif pour montage en surface IEC 60539-2:2003+A1:2010 colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may

    3、be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IECs member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry abo

    4、ut obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. Droits de reproduction rservs. Sauf indication contraire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme

    5、que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans laccord crit de la CEI ou du Comit national de la CEI du pays du demandeur. Si vous avez des questions sur le copyright de la CEI ou si vous dsirez obtenir des droits supplmentaires sur cette pub

    6、lication, utilisez les coordonnes ci-aprs ou contactez le Comit national de la CEI de votre pays de rsidence. IEC Central Office 3, rue de Varemb CH-1211 Geneva 20 Switzerland Email: inmailiec.ch Web: www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global

    7、organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an a

    8、mendment might have been published. Catalogue of IEC publications: www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,). It also gives information on projects, withdrawn and replaced publications. IEC Just Publis

    9、hed: www.iec.ch/online_news/justpub Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available on-line and also by email. Electropedia: www.electropedia.org The worlds leading online dictionary of electronic and electrical terms contain

    10、ing more than 20 000 terms and definitions in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical Vocabulary online. Customer Service Centre: www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need

    11、further assistance, please visit the Customer Service Centre FAQ or contact us: Email: csciec.ch Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 A propos de la CEI La Commission Electrotechnique Internationale (CEI) est la premire organisation mondiale qui labore et publie des normes internationales po

    12、ur tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications CEI Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogu

    13、e des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm Le Catalogue en-ligne de la CEI vous permet deffectuer des recherches en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Il donne aussi des informations sur les projets et les publications retires ou remplaces. Ju

    14、st Published CEI: www.iec.ch/online_news/justpub Restez inform sur les nouvelles publications de la CEI. Just Published dtaille deux fois par mois les nouvelles publications parues. Disponible en-ligne et aussi par email. Electropedia: www.electropedia.org Le premier dictionnaire en ligne au monde d

    15、e termes lectroniques et lectriques. Il contient plus de 20 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans les langues additionnelles. Egalement appel Vocabulaire Electrotechnique International en ligne. Service Clients: www.iec.ch/webstore/custserv/custserv_

    16、entry-f.htm Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 60539-2 Edition 1.1 2010-11 INTERNATIONAL STANDARD NORME INTERNATIONALE D

    17、irectly heated negative temperature coefficient thermistors Part 2: Sectional specification Surface mount negative temperature coefficient thermistors Thermistances coefficient de temprature ngatif chauffage direct Partie 2: Spcification intermdiaire Thermistances coefficient de temprature ngatif po

    18、ur montage en surface INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE CE ICS 31.040.30 PRICE CODE CODE PRIX ISBN 978-2-88912-248-6 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale

    19、colour inside 2 60539-2 IEC:2003+A1:2010 CONTENTS FORE WORD 4 1 General . 6 1.1 Scope . 6 1.2 Normative references . 6 1.3 Information to be given in a detail specification . 7 1.3.1 Outline drawing and dimensions . 7 1.3.2 Mounting 7 1.3.3 Ratings and characteristics 7 1.4 Terminology 7 2 Preferred

    20、 ratings and characteristics 7 2.1 Tolerances on rated zero-power resistance . 7 2.2 Climatic categories . 8 3 Quality assessment procedures . 8 3.1 Primary stage of manufacture 8 3.2 Structurally similar components . 8 3.3 Qualification approval procedures 8 3.3.1 The manufacturer shall comply with

    21、 3.4 of IEC 60539-1. . 8 3.4 Quality conformance inspection . 8 3.4.1 Qualification approval on the basis of the fixed sample size proce dure . 9 3.5 Quality conformance inspection . 10 3.5.1 Formation of inspection lots . 10 3.5.2 Test schedule . 11 3.5.3 Delayed delivery . 11 3.5.4 Assessment leve

    22、l 11 4 Test and measurement procedures . 12 4.1 Mounting . 12 4.2 Drying and recovery . 12 4.2.1 Drying 12 4.2.2 Reco very 12 4.3 Visual examination and check of dimensions. 12 4.3.1 Visual examination 12 4.3.2 Requirements . 12 4.3.3 Marking 14 4.3.4 Dimensions 14 4.4 Electrical tests . 14 4.4.1 Ze

    23、ro-power resistance . 14 4.4.2 B-value or resistance ratio 14 4.4.3 Resistance/temperature characteristic . 15 4.5 Thermal tests. 15 4.5.1 Dissipation factor (d) . 15 4.5.2 Thermal time constant by cooling after self-heating (t c ) 15 4.6 Resistance to soldering heat . 15 4.6.1 Initial measurement .

    24、 15 4.6.2 Test conditions . 15 4.6.3 Reco very 16 60539-2 IEC:2003+A1:2010 3 4.6.4 Final inspection, measurements and requirements 16 4.7 Solderability 16 4.7.1 Test conditions . 16 4.7.2 Reco very 17 4.7.3 Final inspection, measurements and requirements 17 4.8 Rapid change of temperature 17 4.9 The

    25、rmal shock . 18 4.10 Climatic sequence 18 4.10.1 Initial measurements . 18 4.10.2 Dry heat . 18 4.10.3 Damp heat (cyclic), first cycle . 18 4.10.4 Cold . 18 4.10.5 Damp heat (cyclic), remaining cycles 18 4.10.6 Final measurements 19 4.11 Damp heat, steady state . 19 4.12 Endurance . 19 4.12.1 Endura

    26、nce at q 3and P max 19 4.12.2 Endurance at upper category temperature . 20 4.13 Shear (adhesion) test . 20 4.14 Substrate bending test 20 4.15 Component solvent resistance . 20 4.16 Solvent resistance of marking 20 Annex A (normative) Guide for the specification and coding of dimensions of surface m

    27、ount negative temperature coefficient thermistors 21 Figure 1 Fault: fissure or defect . 13 Figure 2 Fault: crack 13 Figure 3 Separation or delamination 13 Figure 4 Exposed electrodes . 13 Figure 5 Principal faces 14 Figure A.1 Dimensioning of surface mount thermistors 21 Table 1 Upper and lower cat

    28、egory temperatures and duration of the damp heat test . 8 Table 2 Fixed sample size test schedule for qualification approval of surface mount negative temperature coefficient thermistors Assessment level EZ 10 Table 3 Lot-by-lot inspection . 11 Table 4 Periodic test 12 Table 5 Number of cycles . 19

    29、Table A.1 Dimensions 21 4 60539-2 IEC:2003+A1:2010 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DIRECTLY HEATED NEGATIVE TEMPERATURE COEFFICIENT THERMISTORS Part 2: Sectional specification Surface mount negative temperature coefficient thermistors FOREWORD 1) The International Electrotechnical Commis

    30、sion (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

    31、 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 in

    32、terested 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 accordanc

    33、e 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 interes

    34、ted 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 responsibl

    35、e 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 bet

    36、ween any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) 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 c

    37、onformity. IEC is not responsible for any services carried out by independent certification bodies. 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 m

    38、embers 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 Publicatio

    39、n 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 Publicatio

    40、n may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. This consolidated version of IEC 60539-2 consists of the first edition (2003) documents 40/1346/FDIS and 40/1368/RVD and its amendment 1 (2010) documents 40/2034/CDV and 40/2051/RV

    41、C. It bears the edition number 1.1. The technical content is therefore identical to the base edition and its amendment and has been prepared for user convenience. A vertical line in the margin shows where the base publication has been modified by amendment 1. Additions and deletions are displayed in

    42、 red, with deletions being struck through. 60539-2 IEC:2003+A1:2010 5 International Standard IEC 60539-2 has been prepared by IEC technical committee 40: Capacitors and resistors for electronic equipment. This bilingual version, published in 2010-07, corresponds to the English version. The French ve

    43、rsion 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 the base publication and its amendments will remain unchanged until the stability date indicated on the IEC web site und

    44、er “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. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are con

    45、sidered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. 6 60539-2 IEC:2003+A1:2010 DIRECTLY HEATED NEGATIVE TEMPERATURE COEFFICIENT THERMISTORS Part 2: Sectional specification Surface mount negative temperature coefficien

    46、t thermistors 1 General 1.1 Scope This part of IEC 60539 is applicable to surface mount directly heated negative temperature coefficient thermistors, typically made from transition metal oxide materials with semiconducting properties. These thermistors have metallized connecting pads or soldering st

    47、rips and are intended to be mounted directly on to substrates for hybrid circuits or on to printed boards. 1.2 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,

    48、 the latest edition of the referenced document (including any amendments) applies. IEC 60068-2-2:1974, Environmental testing Part 2: Tests Tests B: Dry heat Amendment 1 (1993) Amendment 2 (1994) IEC 60068-2-14:1984, Environmental testing Part 2: Tests Test N: Change of temperature Amendment 1 (1986)

    49、 IEC 60068-2-30:1980, Environmental testing Part 2: Tests Test Db and guidance: Damp heat, cyclic (12 + 12-hour cycle) Amendment 1 (1985) IEC 60068-2-58:1999 2004, Environmental testing Part 2-58: Tests Test Td: Test methods for solderability, resistance to dissolution of metallization and to soldering heat of surface mounting devices (SMD) IEC 60068-2-78: Envi


    注意事项

    本文(IEC 60539-2 Edition 1.1-2010 Directly heated negative temperature coefficient thermistors - Part 2 Sectional specification - Surface mount negative temperature .pdf)为本站会员(刘芸)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开