1、 EIA STANDARD Fixed Inductors for Electromagnetic Interference Suppression Part 2-1: Blank Detail Specification Inductors for Which Safety Tests Are Required Assessment Level D EIA-60938-2-1 (IEC 60938-2-1:1999, IDT) July 2014 EIA-60938-2-1 ANSI/EIA-60938-2-1-2014 Approved: July 28, 2014 NOTICE EIA
2、Engineering 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 prop
3、er product 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 prec
4、lude their 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
5、 any liability 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 60938-2-1:1999: Fixed Inductors for Electromagnetic Interference Suppression Part 2-1:
6、Blank Detail Specification Inductors for Which Safety Tests Are Required Assessment Level D. This document is the EIA Standard EIA-60938-2-1-2014 Edition 1: Fixed Inductors for Electromagnetic Interference Suppression Part 2-1: Blank Detail Specification Inductors for Which Safety Tests Are Required
7、 Assessment Level D. The text, figures and tables of IEC 60938-2-1:1999 are used in this Standard with the consent of the IEC and the American National Standards Institute (ANSI). The IEC copyrighted material has been reproduced with permission from ANSI. The IEC Foreword and Introduction are not pa
8、rt of the requirements of this standard but are included for information purposes only. This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safe
9、ty and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 5303, formulated under the cognizance of the Steering Committee for Passive Electronic Components Standards (S-1). Published by Electronic Components Industry Association
10、 2014 Engineering Department 2214 Rock Hill Road, Suite 265 Herndon, VA 20170 PLEASE! DONT VIOLATE THE LAW! This document is copyrighted by the ECIA and may not be reproduced without permission. Organizations may obtain permission to reproduce a limited number of copies through entering into a licen
11、se agreement. For information, contact: IHS 15 Inverness Way East Englewood, CO 80112-5704 or call USA and Canada (1-877-413-5184), International (303-397-7956) i Contents 1 General data 4 1.1 Recommended method(s) of mounting (to be inserted) . 4 1.2 Dimensions . 4 1.3 Ratings and characteristics 5
12、 1.4 Related documents 5 1.5 Marking . 5 1.6 Ordering information 5 1.7 Certified records of released lots . 5 1.8 Additional information (not for inspection purposes) . 6 1.9 Additional or increased severities or requirements to those specified in the generic or sectional specification . 6 2 Inspec
13、tion requirements . 6 2.1 Procedures 6 Table 1 Dimensions related to case size 4 Table 2 Type designation related to values of inductance, rated current and d.c. resistance5 Table 3 Other characteristics . 6 Table 4 Test schedule for quality conformance inspection 6 EIA-60938-2-1 Page 1 INTERNATIONA
14、L ELECTROTECHNICAL COMMISSION _ FIXED INDUCTORS FOR ELECTROMAGNETIC INTERFERENCE SUPPRESSION Part 2-1: Blank detail specification Inductors for which safety tests are required Assessment level D FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardi
15、zation comprising all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes
16、 International Standards. 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 liaising with the IEC also participate in this pr
17、eparation. The 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 the IEC on technical matters express, as nearly as possible, an internat
18、ional consensus of opinion on the relevant subjects since each technical committee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, techni
19、cal reports or guides and they are accepted by the National Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any di
20、vergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standard
21、s. 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60938-2-1 has been prepared by IEC technical commi
22、ttee 40: Capacitors and resistors for electronic equipment. FDIS Report on voting 40/1112/FDIS 40/1138/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 the ISO/
23、IEC Directives, Part 3. The QC number that appears on the front cover of this publication is the specification number in the IEC Quality Assessment System for Electronic Components (IECQ). EIA-60938-2-1 Page 2 The committee has decided that this publication remains valid until 2005. At this date, in
24、 accordance with the committees decision, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. EIA-60938-2-1 Page 3 FIXED INDUCTORS FOR ELECTROMAGNETIC INTERFERENCE SUPPRESSION Part 2-1: Blan
25、k detail specification Inductors for which safety tests are required Assessment level D INTRODUCTION Blank detail specification A blank detail specification is a supplementary document to the sectional specification and contains requirements for style, layout and minimum content of detail specificat
26、ions. Detail specifications not complying with these requirements may not be considered as being in accordance with IEC specifications nor shall they so be described. In the preparation of detail specifications the content of 1.4 of the sectional specification shall be taken into account. The number
27、s between square brackets on the first page of the detail specification correspond to the following information which shall be inserted in the position indicated. Identification of the detail specification 1 The “International Electrotechnical Commission“ or the National Standards Organization under
28、 whose authority the detail specification is drafted. 2 The IEC or National Standards number of the detail specification, date of issue and any further information required by the national system. 3 The number and issue number of the IEC or national generic specification. 4 The IEC number of the bla
29、nk detail specification. Identification of the inductor 5 A short description of the type of inductor. 6 Information on typical construction (when applicable). 7 Outline drawing with main dimensions which are of importance for interchangeability and/or reference to the national or international docu
30、ments for outlines. Alternatively, this drawing may be given in an annex to the detail specification. 8 Application or group of applications covered and/or assessment level. 9 Reference data on the most important properties, to allow comparison between the various inductor types. EIA-60938-2-1 Page
31、4 1 IEC 60938-2-1XX 2 QC XXXXXXXXXXXX ELECTRONIC COMPONENTS OF ASSESSED IEC 60938-2-1 4 QUALITY IN ACCORDANCE WITH: QC XXXXXX 3 FIXED INDUCTORS FOR ELECTROMAGNETIC INTERFERENCE SUPPRESSION FOR WHICH SAFETY 5 Outline drawing: (see table 1) TESTS ARE REQUIRED (. angle projection) 7 6 (Other shapes are
32、 permitted within the dimensions given) Assessment level: D 8 NOTES 1 to 9 see page 3. 9 Information on the availability of components qualified to this detail specification is given in the Register of Approvals. 1 General data 1.1 Recommended method(s) of mounting (to be inserted) (See 1.4.3 of IEC
33、 60938-2.) 1.2 Dimensions Table 1 Dimensions related to case size Case size reference or type Dimensions mm L W H NOTE 1 When there is no case size reference, the dimensions should be given per type designation. NOTE 2 The dimensions should be given as maximum dimensions or as nominal dimensions wit
34、h a tolerance. EIA-60938-2-1 Page 5 1.3 Ratings and characteristics Inductance range (see table 2) Tolerance on rated inductance Rated current (I) range (see table 2) DC resistance (R) (see table 2) Rated voltage Rated temperature Climatic category Category of passive flammability Table 2 Type desig
35、nation related to values of inductance, rated current and d.c. resistance Type designation related to values of inductance, rated current and d.c. resistance LR per line mH IR A Rmax per line 1.4 Related documents Generic specification: IEC 60938-1:(1999), Fixed inductors for electromagnetic interfe
36、rence suppression Part 1: Generic specification Sectional specification: IEC 60938-2:(1999), Fixed inductors for electromagnetic interference suppression Part 2: Sectional specification 1.5 Marking The marking of the inductor and the package shall be in accordance with the requirements of 1.6 of IEC
37、 60938-2. The details of the marking of the component and packaging shall be given in full in the detail specification. 1.6 Ordering information Orders for inductors covered by this specification shall contain, in clear or in coded form, the following minimum information: a) type designation; b) rat
38、ed inductance; c) tolerance on rated inductance; d) rated voltage; e) rated current; f) number and issue reference of the detail specification and style reference. 1.7 Certified records of released lots Required/non required. EIA-60938-2-1 Page 6 1.8 Additional information (not for inspection purpos
39、es) 1.9 Additional or increased severities or requirements to those specified in the generic or sectional specification NOTE Additions or increased requirements should be specified only when essential. Table 3 Other characteristics This table is to be used for defining characteristics which are addi
40、tional to or more severe than those given in the sectional specification. 2 Inspection requirements 2.1 Procedures 2.1.1 For qualification approval, the procedure shall be in accordance with 3.4 of IEC 60938-2. 2.1.2 For quality conformance inspection, the test schedule (table 4) includes sampling,
41、periodicity, severities and requirements. The formation of inspection lots is covered by 3.5.1 of the sectional specification. Table 4 Test schedule for quality conformance inspection Subclause number and test (see note 1) D or ND Conditions of test (see note 1) IL A Q L Performance requirements (se
42、e note 1) (see note 3) (see note 2) GROUP A INSPECTION (lot-by-lot) Subgroup A1 4.1 Visual examination 4.1 Marking 4.1 Dimensions (gauging) ND S-4 2,5 % As in 4.1 Legible marking and as specified in 1.5 of this specification See table 1 of this specification Subgroup A2 4.5 DC line resistance 4.4 In
43、ductance 4.2 Voltage proof 4.3 Insulation resistance (test A only) ND II 1,0 % See 1.3 of this specification Within specified tolerance See table 2 of this specification GROUP B INSPECTION (lot-by-lot) Subgroup B1 4.8 Solderability 4.8.2 Final measurements D Method: . Specify ageing if none or other
44、 than 16 h 155 C dry heat Visual examination S-3 2,5 % Good tinning as evidenced by free flowing of the solder with wetting of the terminations, or solder shall flow within 3 s, as applicable EIA-60938-2-1 Page 7 Subclause number and test (see note 1) D or ND (see note 3) Conditions of test (see not
45、e 1) Sample size and acceptance criterion (see note 3) Performance requirements (see note 1) p n (see note 4) c GROUP C INSPECTION (periodic) Subgroup C1A 4.1.2 Dimensions (detail) 4.1.2 Creepage distances and clearances 4.6 Robustness of terminations 4.7 Resistance to soldering heat(if applicable)
46、4.20 Component sol- vent resistance (if applicable) 4.7.2 Final measurements D For method and severity see detail specification For method and severity:see detail specification See detail specification for the method (1A or 1B) For method 1A: Immersion time: 10 s, unless otherwise specified in the d
47、etail specification Visual examination DC line resistance 6 5/3/1/1 0/0/0/0 Table 1 of this specificationTable 1 of this specification and 4.1.2 No visible damage No visible damage See 1.3 of this specification Subgroup C1B 4.21 Solvent resistance of the marking (if applicable) 4.9 Rapid change of t
48、emperature 4.10 Vibration 4.10.2 Intermediate inspection 4.11 Bump (or shock, see 4.12) D A= Lower category temperature B= Upper category temperature Five cycles Duration t = . h, see 4.9.1 Visual examination For mounting method, see detail specification Frequency range: from . Hz to . Hz Total numb
49、er of sweep cycles: . Visual examination For mounting method, see detail specification Number of bumps: . Acceleration: . m/s2Duration of pulse: . ms Visual examination 6 9/6/4/1 0/0/0/0 Legible marking No visible damage No visible damage No visible damage EIA-60938-2-1 Page 8 Subclause number and test (see note 1) D or ND (see note 3) Conditions of test (see note 1) Sample size and acceptance criterion (see note 3) Performance requirements (see note 1) p n (see note 4)
