1、BRITISH STANDARDBS EN 140101:2008Blank Detail Specification: Fixed low power film resistorsICS 31.040.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g3
2、6g58BS EN 140101:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 May 2008 BSI 2008ISBN 978 0 580 57897 7National forewordThis British Standard is the UK implementation of EN 140101:2008. It supersedes BS EN 140101:1997 which is withdra
3、wn. The UK participation in its preparation was entrusted to Technical Committee EPL/40X, Capacitors and resistors for electronic equipment.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary
4、 provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARD EN 140101 NORME EUROPENNE EUROPISCHE NORM March 2008 CENELEC Euro
5、pean Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr 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 fo
6、r CENELEC members. Ref. No. EN 140101:2008 E ICS 31.040.10 Supersedes EN 140101:1996English version Blank Detail Specification: Fixed low power film resistors Spcification particulire: Rsistances fixes couche et faible dissipation Vordruck fr die Bauartspezifikation: Schicht-Festwiderstnde niedriger
7、 Belastbarkeit This European Standard was approved by CENELEC on 2007-11-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and b
8、ibliographical references concerning such national standards may be obtained on application 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 responsib
9、ility of a CENELEC member into its own language and notified to 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, Gr
10、eece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 140101:2008 2 Foreword This European Standard was prepared by the Technical Committee CENELEC TC
11、 40XB, Resistors. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 140101 on 2007-11-01. This European Standard supersedes EN 140101:1996. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an
12、identical national standard or by endorsement (dop) 2008-11-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-11-01 Preceding documents on the subject covered by this specification have been: CECC 40 101:1981. Compared to the superseded standard,
13、the following changes have been implemented: modification of the title; introduction of a test on the resistance to electrostatic discharge (ESD) in 1.6 and in Annex A; introduction of description and test methods for lead-free soldering in 1.9.3 and in Annex A; introduction of code letters for the
14、temperature coefficient (TCR) as in EN 60062; revision of ordering information in 1.8.4; adoption of the IECQ rules of procedure, IEC QC 001002-3; revision of the sample quantities and the sequence of tests in Annex A; editorial revision. This specification supports the building of a series of docum
15、ents describing fixed low power film resistors as follows: EN 60115-1 Fixed resistors for use in electronic equipment Part 1: Generic specification (IEC 60115-1, mod.) EN 140100 Sectional specification: Fixed low power film resistors EN 140101-xxx Relevant detail specification(s) written on the basi
16、s of this Blank Detail Specification. _ BS EN 140101:2008 3 EN 140101:2008 Contents Introduction . 4 1 Characteristics and ratings . 5 1.1 Dimensions and ratings 5 1.2 Derating curve 6 1.3 Resistance range and tolerance on rated resistance . 7 1.4 Variation of resistance with temperature and tempera
17、ture rise . 8 1.5 Climatic categories . 8 1.6 Limits for change of resistance at tests 9 1.7 Non-linear properties 9 1.8 Tests related to soldering . 10 1.9 Marking, packaging and ordering designation . 11 1.10 Additional information (not for inspection purpose) 12 2 Quality assessment procedures .
18、13 2.1 General . 13 2.2 Qualification Approval 14 2.3 Quality Conformance Inspection 14 Annex A (normative) Fixed sample size Qualification Approval and Quality Conformance Inspection test schedule for fixed low power film resistors 16 Annex B (informative) Letter symbols and abbreviations 24 Biblio
19、graphy 26 Figure 1 Outline and dimensions (see Table 1) 5 Figure 2 Derating curve . 6 Figure 3 Limits of non-linearity in resistance . 10 Table 1 Style and dimensions . 5 Table 2a Ratings 6 Table 2b Ratings for 0 resistors . 6 Table 3a Resistance range and tolerance on rated resistance for Version A
20、 . 7 Table 3b Resistance range and tolerance on rated resistance for Version E . 7 Table 4 Temperature coefficients and percentage change of resistance . 8 Table 5 Limit of temperature rise . 8 Table 6 Climatic categories . 8 Table 7a Limits for change of resistance at tests 9 Table 7b Limits for ch
21、ange of resistance at tests 9 Table A.1 Test schedule for Qualification Approval and Quality Conformance Inspection, lot-by-lot tests, assessment level EZ . 16 Table A.2 Test schedule for Qualification Approval and Quality Conformance Inspection, periodic tests, assessment level EZ . 19 BS EN 140101
22、:2008EN 140101:2008 4 Introduction Blank Detail Specification A Blank Detail Specification is a supplementary document to the sectional specification and contains requirements for style and layout and minimum content of detail specifications. Detail specifications not complying with these requiremen
23、ts shall not be considered as being in accordance with European standards nor shall they be so described. In the preparation of the detail specification the content of EN 140100:2008, 1.2 shall be taken into account. The detail specification should be written by using the preferred values given in E
24、N 140100. The detail specification should contain a table of contents prior the first page of the actual specification. For the use of SI units refer to ISO 1000, for the use of letter symbols to be used in electrical technology refer to EN 60027-1. Notes in this document shall be considered as guid
25、ance and are not part of the detail specification itself. Identification of the detail specification and the component The first page of the detail specification should have the layout recommended on page 5. The numbers in square brackets correspond to the indications to be completed thereunder: 1 t
26、he name of the National Standards Organisation under whose authority the detail specification is published, and if applicable, the organisation from whom the detail specification is available; 2 the CECC symbol and the number allocated to the detail specification by the CENELEC General Secretariat;
27、3 the number and issue number of the EN generic and sectional specification as relevant; also national reference if different; 4 the national number of the detail specification, date of issue and any further information required by the national system, together with any amendment numbers, if differe
28、nt from the EN number; 5 a brief description of the component or range of components; 6 information on typical construction (where applicable); 7 an outline drawing with the main dimensions which are of importance for interchangeability and/or reference to the appropriate national or international d
29、ocument for outlines. Alternatively, this drawing may be given in an annex to the detail specification; 8 the level of quality assessment covered by the detail specification. For 5 and 6 the text to be given in the detail specification should be suitable for an entry in a register of approvals and t
30、he “CENELEC Catalogue of European Standards”. BS EN 140101:2008 5 EN 140101:2008 Specification available from: 1 CENELEC Central Secretariat, Rue de Stassart 35 B-1050 Brussels, or from the addresses shown on the inside cover EN 140101 2Electronic components of assessed quality in accordance with: 3
31、 EN 60115-1:2001 + A1:2001 EN 140100:2008 Issue 2 4 March 2008 7 Other shapes are permitted within the given dimensions. Figure 1 Outline and dimensions (see Table 1) Fixed low power film resistors 5 (Description of the component) 6 Assessment level EZ a 8Version A: with 100 %-test Version E: with f
32、ailure rate level and 100 %-test Stability classes aFor explanation on assessment level EZ see 2.1.1. NOTE Version E is optional. 1 Characteristics and ratings Various parameters of this component are precisely defined in this specification. Unspecified parameters may vary from one component to anot
33、her. 1.1 Dimensions and ratings Table 1 Style and dimensions Style Length L mm Diameter D mm d amm e bmm c cmm Mass dmg Code xmin. max. min. max. max. max. aPermissible tolerance according to HD 349. bStandard distance for the axis to bent leads. Smaller modules may be agreed between manufacturer an
34、d customer. cLength of excess protective coating. dFor information only. xOptional column for additional information (e.g. size code). NOTE See EN 140100:2008, 1.2 b). Information about manufacturers who have components qualified to this detail specification is available in the approvals section of
35、the website http:/www.iecq.org. BS EN 140101:2008EN 140101:2008 6 Table 2a Ratings Style xRated dissipation P70 mW Limiting element voltaged.c. or a.c. (r.m.s.) UmaxV Insulation voltage d.c. or a.c. (peak) UinsV 1 min continuous xOptional column for additional information (e.g. stability class, rate
36、d dissipation at other ambient temperature than 70 C) NOTE 1 See EN 140100:2008, 1.2 h), i), j). NOTE 2 Should it be necessary to control further parameters, a more detailed specification should be used. Then the additional test method(s) shall be fully described and appropriate limits and inspectio
37、n levels (IL) shall be specified. Table 2b Ratings for 0 resistors Style Maximum current Imax A Maximum resistance Rr maxm Insulation voltage d.c. or a.c. (peak) UinsV 1 min continuous NOTE Table 2b is optional. 1.2 Derating curve Resistors covered by this specification are derated according to the
38、following diagram: Ambient temperature aPercentage ofrated dissipation0 %60 %40 %20 %100 %80 %70 CLower category temperature (LCT) Upper category temperature (UCT)Figure 2 Derating curve NOTE 1 See EN 140100:2008, 1.2 h). NOTE 2 A larger area of operation may be given in the detail specification, pr
39、ovided it includes all the area given above. BS EN 140101:2008 7 EN 140101:2008 1.3 Resistance range and tolerance on rated resistance 1.3.1 Version A The following combinations of temperature coefficient and tolerance on rated resistance may be approved only. Products from this extent shall be used
40、 for the Qualification approval according to 2.2.1 and for the Quality conformance inspection according to 2.3. Resistance values of an E-series according to IEC 60063 shall be used. The qualification of resistance values below or beyond the specified resistance values is permitted, if they fulfil t
41、he requirements of the closest stability class (e.g. Style shall fulfil the requirements of stability class ). Table 3a Resistance range and tolerance on rated resistance for Version A Style Tolerance on rated resistance Temperature coefficient Resistance range Stability class b% Code a10-6/K 0 resi
42、stors according to Table 2b for styles aCode letters according to EN 60062. bFor the category temperatures of stability classes refer to Table 6. 1.3.2 Version E The following combinations of temperature coefficient, tolerance on rated resistance, resistance range and E-series according to IEC 60063
43、 are permitted only. Products from this extent shall be used for the Qualification approval according to 2.2.2 and for the Quality conformance inspection according to 2.3 and are permitted only: Table 3b Resistance range and tolerance on rated resistance for Version E Style Tolerance on rated resist
44、ance Temperature coefficient Resistance range Stability class bE series % Code a10-6/K 0 resistors according to Table 2b for styles aCode letters according to EN 60062. bFor the category temperatures of stability classes refer to Table 6. NOTE Table 3b is only required for Version E and should be a
45、subset of Table 3a. BS EN 140101:2008EN 140101:2008 8 1.4 Variation of resistance with temperature and temperature rise Table 4 Temperature coefficients and percentage change of resistance Temperature coefficient Limit of resistance change R/R % 10-6/K Code aCode bLCT / Reference temp. C Reference t
46、emperature / UCT C - / 20 - / 20 20 / 20 / 20 / aCode letters according to EN 60062. bHistorical code letters according to , for information only. NOTE 1 Second code column with historical reference is optional. NOTE 2 See EN 140100:2008, 1.2 g). Table 5 Limit of temperature rise Stability class Lim
47、it of temperature rise at rated dissipation Tr Tr 1.5 Climatic categories NOTE See EN 140100:2008, 1.2 c). Table 6 Climatic categories Stability class Climatic category LCT / UCT / Duration / / / / BS EN 140101:2008 9 EN 140101:2008 1.6 Limits for change of resistance at tests NOTE See EN 140100:200
48、8, 1.2 d). Table 7a Limits for change of resistance at tests Stability class Limit of resistance change R/R EN 60115-1a, 4.23 Climatic sequence4.24 Damp heat, steady state4.25.3 Endurance at upper categorytemperature EN 60115-1a, 4.25.1 Endurance at 70 C EN 60115-1a, 4.13 Overload 4.16 Robustness of
49、 terminations 4.18 Resistance to soldering heat 4.19 Rapid change of temperature,5 cycles 4.22 Vibration 1 000 h Extended, 8 000 h aEN 60115-1:2001 + A1:2001. Table 7b Limits for change of resistance at tests Stability class Limit of resistance change R/R EN 60115-1a, 4.19 Rapid change of temperature, 100 cycles EN 60115-1a, 4.27 Single pulse high voltage overl
