1、 EIA STANDARD Fixed Capacitors for Use in Electronic Equipment Part 21: Sectional Specification Fixed Surface Mount Multilayer Capacitors of Ceramic Dielectric, Class 1 EIA-60384-21 (IEC 60384-21:2011, IDT) October 2014 ANSI/EIA-60384-21-2014 Approved: October 3, 2014 EIA-60384-21 NOTICE EIA Enginee
2、ring Standards and Publications are 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 prod
3、uct for his particular need. Existence 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 th
4、eir voluntary use by those other than 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 li
5、ability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard or Publication. This EIA Standard is identical (IDT) with the International Standard IEC Publication 60384-21:2011: Fixed Capacitors for Use in Electronic Equipment Part 21: Sectional Specificati
6、on Fixed Surface Mount Multilayer Capacitors of Ceramic Dielectric, Class 1. This document is the EIA Standard EIA-60384-21 2014 Edition 2: Fixed Capacitors for Use in Electronic Equipment Part 21: Sectional Specification Fixed Surface Mount Multilayer Capacitors of Ceramic Dielectric, Class 1. The
7、text, figures and tables of IEC 60384-21:2011 are used in this Standard with the consent of the IEC and the American National Standards Institute (ANSI). These materials are subject to copyright claims of IEC and ECIA. No part of this publication may be reproduced in any form, including an electroni
8、c retrieval system, without the prior written permission of ECIA. All requests pertaining to EIA-60384-21 2014 Edition 2: Fixed Capacitors for Use in Electronic Equipment Part 21: Sectional Specification Fixed Surface Mount Multilayer Capacitors of Ceramic Dielectric, Class 1 should be submitted to
9、ECIA at the address below. 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 ass
10、ociated 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. 5272, formulated under
11、the cognizance of the P-2.1 Committee on EIA National Ceramic Dielectric Capacitors Standards and given final approval by the Steering Committee for Passive Electronic Components Standards (S-1). Published by Electronic Components Industry Association 2014 Standards any IEC National Committee intere
12、sted 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 accordance wit
13、h 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 interested I
14、EC 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 responsible for
15、 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 between
16、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 confor
17、mity. 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 member
18、s 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 Publication or
19、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 Publication may
20、 be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60384-21 has been prepared by IEC technical committee 40: Capacitors and resistors for electronic equipment. This second edition cancels and replaces the firs
21、t edition published in 2004 and contains the following significant technical changes with respect to the previous edition: The test voltage of 1,2 UR at UR 1 000 V has been added in 4.5.4 Voltage proof. Detail test conditions have been added in 4.7 Shear test and 4.8 Substrate bending test. Test con
22、ditions applying lead free solder alloy (Sn-Ag-Cu) have been included in 4.9 Resistance to soldering heat and 4.10 Solderability. A selection of the test conditions according to marketing needs have been stated in 4.13 Damp heat, steady state. The dimensions of 0402 M in Annex A have been added. EIA
23、-60384-21 Page 2 The code of the temperature coefficient and the tolerance of capacitance for the reference temperature of 25 C have been added, see Annex B. The text of this standard is based on the following documents: FDIS Report on voting 40/2127/FDIS 40/2140/RVD Full information on the voting f
24、or 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 the ISO/IEC Directives, Part 2. The list of all parts of the IEC 60384 series, under the general title Fixed capacitors for use in electronic equip
25、ment, can be found on the IEC web site. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be re
26、confirmed, withdrawn, replaced by a revised edition, or amended. EIA-60384-21 Page 3 FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT Part 21: Sectional specification Fixed surface mount multilayer capacitors of ceramic dielectric, Class 1 1 General 1.1 Scope This part of IEC 60384 is applicable to
27、fixed unencapsulated surface mount multilayer capacitors of ceramic dielectric, Class 1, for use in electronic equipment. These capacitors have metallized connecting pads or soldering strips and are intended to be mounted on printed boards, or directly onto substrates for hybrid circuits. Capacitors
28、 for electromagnetic interference suppression are not included, but are covered by IEC 60384-14. 1.2 Object The object of this standard is to prescribe preferred ratings and characteristics and to select from IEC 60384-1 the appropriate quality assessment procedures, tests and measuring methods and
29、to give general performance requirements for this type of capacitor. Test severities and requirements prescribed in detail specifications referring to this sectional specification should be of equal or higher performance level, lower performance levels are not permitted. 1.3 Normative references The
30、 following reference 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
31、 and capacitors Amendment 1 (1967) Amendment 2 (1977) IEC 60068-1:1988, Environmental testing Part 1: General and guidance 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 m
32、ounting devices (SMD) IEC 60384-1:2008, Fixed capacitors 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 ISO 3:1973, Preferred numbers Series of
33、 preferred numbers 1.4 Information to be given in a detail specification The detail specification shall be derived from the relevant blank detail specification. EIA-60384-21 Page 4 Detail specifications shall not specify requirements inferior to those of the generic, sectional or blank detail specif
34、ication. When more severe requirements are included, they shall be listed in 1.9 of the detail specification and indicated in the test schedules, for example by an asterisk. NOTE The information given in 1.4.1 may, be presented in tabular form if more convenient. The following information shall be g
35、iven 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 drawing and dimensions There shall be an illustration of the capacitors as an aid to easy recognition and for comparison of t
36、he capacitors with others. Dimensions and their associated tolerances, which affect interchangeability and mounting, shall be given in the detail specification. All dimensions shall preferably be stated in millimetres, however, when the original dimensions are given in inches, the converted metric d
37、imensions in millimetres shall be added. Normally the numerical values shall be given for the length, width and height of the body. When necessary, for example when a number of items (sizes and capacitance/voltage ranges) are covered by a detail specification, the dimensions and their associated tol
38、erances shall be placed in a table below the drawing. When the configuration is other than described above, the detail specification shall state such dimensional information as will adequately describe the capacitors. 1.4.2 Mounting The detail specification shall give guidance on methods of mounting
39、 for normal use. Mounting for test and measurement purposes (when required) shall be in accordance with 4.3 of this sectional specification. 1.4.3 Rating and characteristics The ratings and characteristics shall be in accordance with the relevant clauses of this specification, together with the foll
40、owing. 1.4.3.1 Nominal capacitance range See 2.2.4.1. NOTE When products approved to the detail specification have different ranges, the following statement should be added: “The range of capacitance values available in each voltage range is given in the register of approvals, available for example
41、on the website www.iecq.org. 1.4.3.2 Particular characteristics Additional characteristics may be listed, when they are considered necessary to specify adequately the component for design and application purposes. 1.4.3.3 Soldering The detail specification shall prescribe the test methods, severity
42、and requirements applicable for the solderability and the resistance to soldering heat tests. EIA-60384-21 Page 5 1.4.4 Marking The detail specification shall specify the content of the marking on the capacitor and on the package. Deviations from 1.6 of this sectional specification shall be specific
43、ally stated. 1.5 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60384-1, as well as the following apply. 1.5.1 surface mount capacitor capacitor whose small dimensions and nature or shape of terminations make it suitable for surface mounting in hybrid
44、 circuits and on printed boards 1.5.2 fixed capacitors, ceramic dielectric, Class 1 capacitor specially designed and suited for resonant circuit application where low losses and high stability of capacitance are essential or where a precisely defined temperature coefficient is required, for example
45、for compensating temperature effects in the circuit NOTE The ceramic dielectric is defined by its rated temperature coefficient (). 1.5.3 subclass for a given nominal temperature coefficient, the subclass is defined by the tolerance on the temperature coefficient (see Table 2) NOTE The nominal tempe
46、rature coefficient value and its tolerance refer to the temperature interval of +20 C to +85 C, but because in practice TC curves are not strictly linear, it is necessary to define limiting capacitance deviation (C/C) for other temperatures (see Table 3). 1.5.4 category temperature range range of am
47、bient temperatures for which the capacitor has been designed to operate continuously; this is given by the lower and upper category temperature 1.5.5 rated temperature TRmaximum ambient temperature at which the rated voltage may be continuously applied 1.5.6 rated d.c. voltage URmaximum d.c. voltage
48、 which may be applied continuously to a capacitor at any temperature between the lower category temperature and the rated temperature NOTE Maximum d.c. voltage is the sum of the d.c. voltage and peak a.c. voltage or peak pulse voltage applied to the capacitor. 1.5.7 category voltage UCmaximum voltag
49、e which may be applied continuously to a capacitor at its upper category temperature EIA-60384-21 Page 6 1.6 Marking See IEC 60384-1, 2.4, with the following details. 1.6.1 Information for marking The information given in the marking is normally selected from the following list; the relative importance of each item is indicated by its position in the list: nominal capacitance; rated voltage (d.c. voltage may be indicated by the symbol or ); tolerance on nominal capacitance; temperature coefficient and its tolerance a
