ECA EIA-60115-8-2014 Fixed Resistors for Use in Electronic Equipment - Part 8 Sectional Specification - Fixed Surface Mount Resistors.pdf

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1、 EIA STANDARD Fixed Resistors for Use in Electronic Equipment Part 8: Sectional Specification - Fixed Surface Mount Resistors EIA-60115-8 (IEC 60115-8:2009, IDT) October 2014 ANSI/EIA-60115-8-2014 Approved: October 6, 2014 EIA-60384-11 EIA-60115-8NOTICE EIA Engineering Standards and Publications are

2、 designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existe

3、nce of such Standards and Publications shall not in any respect preclude any member or nonmember of ECIA from manufacturing or selling products not conforming to such Standards and Publications, nor shall the existence of such Standards and Publications preclude their voluntary use by those other th

4、an ECIA members, whether the standard is to be used either domestically or internationally. Standards and Publications are adopted by ECIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, ECIA does not assume any liability to any patent owner, nor do

5、es it assume any obligation whatever to parties adopting the Standard or Publication. This EIA Standard is identical (IDT) with the International Standard IEC Publication 60115-8:2009: Fixed Resistors for Use in Electronic Equipment Part 8: Sectional Specification - Fixed Surface Mount Resistors. Th

6、is document is the EIA Standard EIA-60115-8: 2014: Fixed Resistors for Use in Electronic Equipment Part 8: Sectional Specification - Fixed Surface Mount Resistors. The text, figures and tables of IEC 60115-8: 2009 are used in this Standard with the consent of the IEC and the American National Standa

7、rds Institute (ANSI). The IEC copyrighted material has been reproduced with permission from ANSI. The IEC Foreword and Introduction are not part of the requirements of this standard but are included for information purposes only. This Standard does not purport to address all safety problems associat

8、ed with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 5315, formulated under the c

9、ognizance of the Steering Committee for Passive Electronic Components Standards (S-1). Published by Electronic Components Industry Association 2014 Standards any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-

10、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

11、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 ac

12、cepted 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 internat

13、ional 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

14、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 it

15、s 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

16、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

17、 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 60115-8 has been prepared by IEC technical committee 40: Capacitors and resi

18、stors for electronic equipment. This second edition cancels and replaces the first edition, published in 1989, and its Amendment 1 (2000). This second edition constitutes a technical revision and includes test conditions and requirements for lead-free soldering and assessment procedures meeting the

19、requirements of a “zero defect” approach. The major technical changes with regard to the first edition are the following: introduction of a product classification based on application requirements; extension of the list of styles and dimensions; use of an extended scope of stability class definition

20、s; extension of the lists of preferred values of ratings inclusion of test conditions and requirements for lead-free soldering, for periodic overload and for resistance to electrostatic discharge (ESD); inclusion of a new set of severities for a shear test; EIA-60115-8 Page 2 inclusion of definition

21、s for a test board; replacement of assessment level E and possible others by the sole assessment level EZ, meeting the requirements of a “zero defect” approach; inclusion of an extended endurance test, a flammability test, a temperature rise test, vibration tests, an extended rapid change of tempera

22、ture test, and a single pulse high-voltage overload test; inclusion of requirements applicable to 0 resistors (jumpers). This bilingual version (2013-01) corresponds to the monolingual English version, published in 2009-01. The text of this standard is based on the following documents: FDIS Report o

23、n voting 40/1933/FDIS 40/1970/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. This publication has been drafted in accordance with the ISO/IEC Directiv

24、es, Part 2. A list of all the parts of the IEC 60115 series, under the general title Fixed resistors for use in electronic equipment, 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

25、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. EIA-60115-8 Page 3 FIXED RESISTORS FOR USE IN ELECTRONIC EQUIPMENT Part 8: Sectional specification

26、Fixed surface mount resistors 1 General 1.1 Scope This part of IEC 60115 is applicable to fixed surface mount resistors for use in electronic equipment. These resistors are typically described according to types (different geometric shapes) and styles (different dimensions). They have metallized ter

27、minations and are primarily intended to be mounted directly on to a circuit board. 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 gener

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

29、ing 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 60062:2004, Marking codes for resistors and capacitors

30、IEC 60068-1:1988, Environmental testing Part 1: General and guidance Amendment 1(1992) IEC 60068-2-58:2004, 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 60115-1:2

31、008, Fixed resistors for use in electronic equipment Part 1: Generic specification IEC 61193-2:2007, Quality assessment systems Part 2: Selection and use of sampling plans for inspection of electronic components and packages IEC 61340-3-1, Electrostatics Part 3-1: Methods for simulation of electrost

32、atic effects Human body model (HBM) electrostatic discharge test waveforms IEC 61760-1:2006, Surface mounting technology Part 1: Standard method for the specification of surface mounting components (SMDs) EIA-60115-8 Page 4 1.4 Information to be specified in a detail specification Detail specificati

33、ons shall be derived from the relevant blank detail specification. Detail specifications shall not specify requirements inferior to those of the generic specification, sectional specification or blank detail specification. When severer requirements are included, they shall be listed in a subclause o

34、f the detail specification and indicated in the test schedules, for example by a note. The following information shall be given in each detail specification and the values quoted shall preferably be selected from those given in the appropriate clause of this sectional specification. 1.4.1 Outline dr

35、awing There shall be an illustration of the resistor as an aid to easy recognition and for comparison of the resistor with others. 1.4.2 Style and dimensions See 2.1.1. Dimensions and their associated tolerances, which affect interchangeability and mounting, shall be given in the detail specificatio

36、n. 1.4.3 Climatic category See 2.1.2. 1.4.4 Limits of resistance change after testing See 2.1.4. 1.4.5 Resistance range See 2.2.1. NOTE When products approved according to the detail specification have different ranges, the following statement should be added: “The range of values available in each

37、style, together with the associated tolerance and temperature coefficient, is given in the register of approvals, available for example on the website www.iecq.org”. 1.4.6 Tolerances on nominal resistance See 2.2.2. 1.4.7 Temperature coefficient of resistance See 2.1.3. 1.4.8 Rated dissipation See 2

38、.2.3. The mounting conditions are as described in 2.4.2. The detail specification shall state the maximum dissipation at temperatures other than 70 C, for example the derating, either in a diagram or in the form of a statement. All break points shall be verified by test. EIA-60115-8 Page 5 1.4.9 Lim

39、iting element voltage See 2.2.4. 1.4.10 Insulation voltage This information is required only for insulated resistors. See 2.2.6 and the definition in IEC 60115-1, 2.2.10 For small size resistors where the dimensions of the test jig given in IEC 60115-1, 4.6 are not adequate, they shall be specified

40、in the detail specification. 1.4.11 Insulation resistance This information is required only for insulated resistors. See 2.2.5. For small size resistors where the dimensions of the test jig given in IEC 60115-1, 4.6 are not adequate, they shall be specified in the detail specification. 1.4.12 Markin

41、g Surface mount resistors are generally not marked on the body. However, if some marking is applied to the body, the resistor shall be marked with the resistance according to IEC 60062, Clause 3 and as many of the remaining items listed in IEC 60115-1, 2.4. All the required information shall be mark

42、ed on the packaging. 1.4.13 Ordering information The detail specification shall specify that the following information is required when ordering resistors: The number of the detail specification and style reference. Resistance, tolerance on resistance and temperature coefficient of resistance accord

43、ing to IEC 60062. 1.4.14 Mounting The detail specification shall give guidance on methods of mounting for normal use, preferably based on the specification of assembly process conditions of IEC 61760-1, Clause 5. Mounting for test and measurement purposes (when required) shall be in accordance with

44、2.4.2 of this specification and IEC 60115-1, 4.31. The detail specification may include additional information (which is not normally required to be verified by the inspection procedure), such as circuit diagrams, curves, drawings and notes needed for the clarification of the detail specification. 1

45、.5 Product classification The introduction of a product classification permits the user to select performance requirements according to the conditions of the intended end-use application. Two general end product levels have been established to reflect characteristic differences in functional, perfor

46、mance and reliability requirements and to permit the use of suitable inspection and test schedules. It should be recognized that there may be overlaps of applications between the levels. Level G General electronic equipment, typically operated under benign or moderate environmental conditions, where

47、 the major requirement is function. Examples for level G include consumer products and telecommunication user terminals. EIA-60115-8 Page 6 Level P High-performance electronic equipment, where one or more of the following criteria applies: uninterrupted performance is desired or mandatory; operation

48、 in harsh environmental conditions; extended lifetime. Examples for level P include professional equipment, telecommunication transmission systems, industrial control and measurement systems and most automotive applications operated outside the passenger compartment. Level P is the suitable basis fo

49、r detail specifications aiming for the approval of components with established reliability. Each level shall be used in individual detail specifications. 2 Preferred characteristics, ratings and test severities 2.1 Preferred characteristics The values given in detail specifications shall preferably be selected from the following. 2.1.1 Style and dimensions The preferred styles and dimensions are given in Table 1aError! Reference source not found. and Table 1b. Table 1a Preferred styles for rectangular (RR) resistors Style