IEC 60115-9-2003 Fixed resistors for use in electronic equipment - Part 9 Sectional specification Fixed surface mount resistor networks with individually measur.pdf

1、INTERNATIONAL STANDARD IEC 60115-9 First edition 2003-10 Fixed resistors for use in electronic equipment Part 9: Sectional specification: Fixed surface mount resistor networks with individually measurable resistors Reference number IEC 60115-9:2003(E)Publication numbering As from 1 January 1997 all

2、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 publi

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8、NTERNATIONAL STANDARD IEC 60115-9 First edition 2003-10 Fixed resistors for use in electronic equipment Part 9: Sectional specification: Fixed surface mount resistor networks with individually measurable resistors IEC 2003 Copyright - all rights reserved No part of this publication may be reproduced

9、 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 Varemb, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: +41 22 919 02 11 Telefax: +41

10、 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.ch P For price, see current catalogue PRICE CODE Commission Electrotechnique Internationale International Electrotechnical Commission 2 60115-9 IEC:2003(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIXED RESISTORS FOR USE IN ELECTRONIC EQUIPMENT Part

11、 9: Sectional specification: Fixed surface mount resistor networks with individually measurable resistors FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The

12、 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 Specifi

13、cations (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

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20、ion, 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 possibilit

21、y 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 60115-9 has been prepared by IEC technical committee 40: Capacitors and resistors for electronic equipm

22、ent. The text of this standard is based on the following documents: FDIS Report on voting 40/1344/FDIS 40/1366/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

23、the ISO/IEC Directives, Part 2.60115-9 IEC:2003(E) 3 The committee has decided that the contents of this publication will remain unchanged until 2008. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. A bilingual edition of this standard may be

24、issued at a later date. 4 60115-9 IEC:2003(E) FIXED RESISTORS FOR USE IN ELECTRONIC EQUIPMENT Part 9: Sectional specification: Fixed surface mount resistor networks with individually measurable resistors 1 General 1.1 Scope This part of IEC 60115 is applicable to fixed surface mount resistor network

25、s with individually measurable resistors for use in electronic equipment. 1.2 Object The object of this standard is to prescribe preferred ratings and characteristics and to select from IEC 60115-1, the appropriate Quality Assessment procedures, tests and measuring methods and to give general perfor

26、mance requirements for this type of resistor. Test severities and requirements prescribed in detail specifications referring to this sectional specification must be of equal or higher performance level, because lower performance levels are not permitted. 1.3 Normative references The following refere

27、nced 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 60063:1963, Preferred number series for resistors and capacitors

28、Amendment 1 (1967) Amendment 2 (1977) IEC 60068-1: Environmental testing Part 1: General and guidance IEC 60068-2-1: Environmental testing Part 2: Tests. Tests A: Cold IEC 60068-2-2: Environmental testing Part 2: Tests. Tests B: Dry heat IEC 60115-1:1999, Fixed resistors for use in electronic equipm

29、ent Part 1: Generic specification 1.4 Information to be given in a detail specification Detail specifications shall be derived from the relevant blank detail specification. Detail specifications shall not specify requirements inferior to those of the generic, sectional specification or blank detail

30、specification. When more severe requirements are included, they shall be listed in 1.8 of the detail specification and indicated in the test schedules, for example by an asterisk.60115-9 IEC:2003(E) 5 The following information shall be given in each detail specification and the values quoted shall p

31、referably be selected from those given in the appropriate clause of this sectional specification. 1.4.1 Outline drawing and dimensions There shall be an illustration of the surface mount resistor network as an aid to easy recognition and for comparison of the surface mount resistor network with othe

32、rs. Dimensions and their associated tolerances, which affect interchangeability and mounting, shall be given in the detail specification. All dimensions shall be stated in millimetres. Normally the numerical values shall be given for the length, width and thickness of the body. Schematic diagrams an

33、d pin identifications shall be given in the detail specification. Those are prescribed in Annex A. Configurations of terminations shall be given in the detail specification. Those are prescribed in Annex B. When the outline drawing is other than described above, the detail specification shall state

34、such dimensional information as will adequately describe the surface mount resistor network. 1.4.2 Mounting The detail specification shall give guidance on methods of mounting for normal use. Mounting for test and measurement purposes (when required) shall be in accordance with 4.31 of IEC 60115-1.

35、1.4.3 Style (2.2.2 of IEC 60115-1) The styles given in Table 1 are preferred. All dimensions are in mm. Table 1 Style and outline dimensions Dimensions in mm Code Length L Width W Thickness T Diagram a) Construction of terminalsa) 1005X2 1 0,1 1 0,1 0,35 0,1 AC o n v e x 1005X4 2 0,1 1 0,1 0,4 0,15

36、A Convex Concave 1608X2 1,6 0,2 1,6 0,2 0,55 0,15 A Convex Concave 1608X4 3,2 0,2 1,6 0,2 0,55 0,15 A Convex Concave 3216X4 5,08 0,2 3,1 0,2 0,55 0,15 A Convex Concave 3216 3,2 0,2 1,6 0,2 0,5 0,15 B, C Convex 4021 4 0,2 2,1 0,2 0,6 0,15 D Concave 6431 6,4 0,2 3,1 0,2 0,6 0,15 B, C Convex Concave a)

37、 Diagrams are shown in Annex A. Constructions of terminals are shown in Annex B. 6 60115-9 IEC:2003(E) 1.4.4 Ratings and characteristics The ratings and characteristics shall be in accordance with the relevant clauses of this specification together with the following: Rated resistance range See 2.2.

38、1. The preferred values are those of the E-series of IEC 60063. NOTE When products approved to the detail specification have different ranges, the following statement should be added: “The range of values available in each style is given in the qualified products list”. 1.4.5 Marking The detail spec

39、ification shall specify the content of the marking on the surface mount resistor network and on the package. Surface mount resistor networks are generally not marked on the body. If some marking can be applied, the surface mount resistor network shall be clearly marked with the rated resistance and

40、as many of the remaining items in 2.4 of IEC 60115-1 as possible. All items shall be marked on the package. Deviations from the above mentioned requirements shall be specifically stated. 2 Preferred ratings, characteristics and test severities 2.1 Preferred ratings and characteristics The values giv

41、en in detail specifications shall preferably be selected from the following: 2.1.1 Preferred climatic categories The surface mount resistor networks covered by this specification are classified into climatic categories according to the general rules given in IEC 60068-1. The lower and upper category

42、 temperature and the duration of the damp heat, steady state shall be chosen from the following: Lower category temperature: 55 C, 40 C, 25 C and 10 C. Upper category temperature: +85 C, +100 C, +125 C and +155 C. Duration of the damp heat, steady state test: 4, 10, 21 and 56 days. The severities fo

43、r the cold and dry heat tests are the lower and upper category temperatures respectively. Because of the construction of some surface mount resistor networks these temperatures will occur between two of the preferred temperatures given in IEC 60068-2-1 and IEC 60068-2-2. In this event, the nearest p

44、referred temperature within the actual temperature range of the surface mount resistor network shall be chosen for this severity. 2.1.2 Temperature coefficients and temperature characteristics of resistance The preferred limits of change in resistance for the temperature characteristics of resistanc

45、e test are given in Table 2.60115-9 IEC:2003(E) 7 Each line in the table gives the preferred temperature coefficient and corresponding temperature characteristic for 20 C to 70 C and limits of change in resistance for the measurement of the temperature characteristic of resistance (see 4.8 of IEC 60

46、115-1) on the basis of category temperature ranges of 2.1.1 of this sectional specification. Table 2 Temperature coefficients and temperature characteristics of resistance Temperature characteristic of resistance (limits of percentage change in resistance) Temper- ature coeffi- cient Temper- ature c

47、harac- teristic 20/70 C Reference temperature /lower category temperature Reference temperature /upper category temperature 10 6 /K % +20/55 +20/40 +20/25 +20/10 +20/+85 +20/+100 +20/+125 +20/+155 500 2,5 3,75 3 2,25 1,500 3,25 4 5,25 6,75 250 1,25 1,88 1,5 1,13 0,750 1,62 2 2,62 3,38 100 0,5 0,75 0

48、6 0,45 0,300 0,65 0,8 1,05 1,35 50 0,25 0,375 0,3 0,23 0,150 0,325 0,4 0,525 0,675 25 0,125 0,188 0,15 0,113 0,075 0,162 0,2 0,262 0,338 15 0,075 0,113 0,09 0,068 0,045 0,098 0,12 0,158 0,203 10 0,05 0,075 0,06 0,045 0,030 0,065 0,08 0,105 0,135 NOTE 1 Resistors having an upper category temperature

49、 of +85 C need not be measured between 20 C and 70 C. NOTE 2 If measurements are required at additional temperatures, these shall be specified in the detail specification. 2.1.3 Limits for change in resistance For each stability class the preferred limits for change in resistance for each of the tests listed in the head