1、 IEC 62674-1 Edition 1.0 2012-10 INTERNATIONAL STANDARD NORME INTERNATIONALE High frequency inductive components Part 1: Fixed surface mount inductors for use in electronic and telecommunication equipment Composants inductifs haute frquence Partie 1: Inductances fixes pour montage en surface utilise
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16、ons contactez-nous: csciec.ch. IEC 62674-1 Edition 1.0 2012-10 INTERNATIONAL STANDARD NORME INTERNATIONALE High frequency inductive components Part 1: Fixed surface mount inductors for use in electronic and telecommunication equipment Composants inductifs haute frquence Partie 1: Inductances fixes p
17、our montage en surface utilises dans les matriels lectroniques et les quipements de tlcommunications INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE V ICS 29.100.10 PRICE CODE CODE PRIX ISBN 978-2-83220-399-6 Registered trademark of the International Electrotechn
18、ical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 62674-1 IEC:2012 CONTENTS FOREWORD .
19、4 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 7 4 Designation 7 5 Shape . 9 6 Dimensions 10 6.1 Shape D 10 6.2 Shape K 11 6.3 Tolerance for outline dimensions . 11 7 Ratings and characteristics. 11 7.1 Nominal inductance or impedance . 11 7.2 Tolerance for nominal inductance or
20、impedance 12 7.3 Operating temperature range . 12 8 Marking 13 9 Direction marking or shape of polarity. 13 10 Tests and performance requirements 14 10.1 Standard atmospheric conditions for testing 14 10.1.1 Standard atmospheric conditions for measurements and tests . 14 10.1.2 Referee condition 14
21、10.2 Visual examination and check of dimensions . 14 10.2.1 Visual examination 14 10.2.2 Dimensions 14 10.3 Electrical performance tests 15 10.3.1 Inductance . 15 10.3.2 Q . 18 10.3.3 Impedance . 22 10.3.4 Self-resonant frequency . 22 10.3.5 DC resistance 24 10.3.6 Rated current 25 10.4 Mechanical p
22、erformance tests . 25 10.4.1 Mounting to substrate 25 10.4.2 Body strength test . 25 10.4.3 Robustness of terminations (electrodes) 25 10.4.4 Solderability 26 10.4.5 Resistance to soldering heat 26 10.4.6 Resistance to dissolution of metallization 26 10.4.7 Vibration 27 10.4.8 Resistance to shock 27
23、 10.5 Environmental and climatic tests . 27 10.5.1 Cold 27 10.5.2 Dry heat 28 10.5.3 Change of temperature 29 10.5.4 Damp heat (steady state) 29 10.5.5 Component solvent resistance . 30 62674-1 IEC:2012 3 Bibliography 31 Figure 1 Shapes of inductor and ferrite beads (examples) 9 Figure 2 Example of
24、circuit for measurement by the bridge method 15 Figure 3 Example of circuit for measurement by the vector voltage/current method 16 Figure 4 Example of a circuit for measurement by the automatic balancing bridge method . 17 Figure 5 Example of circuit for measurement by the series resonance method .
25、 19 Figure 6 Example of a circuit for measurement by the parallel resonance method 20 Figure 7 Tuning characteristics of inductor . 20 Figure 8 Example of circuit for measurement by the minimum output method . 23 Figure 9 Example of measuring circuit for DC resistance . 24 Table 1 Letter code for in
26、ductance value 8 Table 2 Dimensions for shape D 10 Table 3 Dimensions of height for shape D (R 20 series) . 10 Table 4 Dimensions of height for shape D less than 1,00 mm 10 Table 5 Dimensions for shape K 11 Table 6 Tolerance for outline dimension and height . 11 Table 7 E 24 series for nominal induc
27、tance or impedance 12 Table 8 Tolerance for nominal inductance or impedance 12 Table 9 Temperatures to be selected for operating temperature ranges . 12 Table 10 User reference / Examples of application and operating temperature range . 13 Table 11 Electrical performance . 26 Table 12 Combined test
28、conditions for cold 28 Table 13 Combined test conditions for dry heat 28 Table 14 Test conditions for change of temperature . 29 Table 15 Test conditions for damp heat (steady state) . 30 4 62674-1 IEC:2012 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HIGH FREQUENCY INDUCTIVE COMPONENTS Part 1: Fixed
29、 surface mount inductors for use in electronic and telecommunication equipment FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promot
30、e 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 Specifications (PAS) and Guides (h
31、ereafter 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 liaising with the IEC also p
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36、of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. 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
37、publication. 7) No liability shall attach to IEC or its 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 indir
38、ect, or for costs (including legal fees) and expenses 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
39、 correct application of this publication. 9) Attention 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 62674-1 has been prepa
40、red by IEC technical committee 51: Magnetic components and ferrite materials. The text of this standard is based on the following documents: FDIS Report on voting 51/1006/FDIS 51/1009/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated
41、in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 62674-1 IEC:2012 5 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 th
42、e data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 62674-1 IEC:2012 HIGH FREQUENCY INDUCTIVE COMPONENTS Part 1: Fixed surface mount inductors for use in electronic and telecommunication equipment 1 Sc
43、ope This part of IEC 62674 applies to fixed surface mount inductors and ferrite beads. The object of this standard is to define the terms necessary to describe the inductors covered by this standard, provide recommendations for preferred characteristics, recommended performance, test methods and gen
44、eral guidance. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (incl
45、uding any amendments) applies. IEC 60068-1:1988, Environmental testing Part 1: General and guidance IEC 60068-2-1:2007, Environmental testing Part 2-1: Tests Test A: Cold IEC 60068-2-2:2007, Environmental testing Part 2-2: Tests Test B: Dry heat IEC 60068-2-14:2009, Environmental testing Part 2-14:
46、Tests Test N: Change of temperature IEC 60068-2-45, Basic environmental testing procedures Part 2-45: Tests Test XA and guidance: Immersion in cleaning solvents IEC 60068-2-58:2004, Environmental testing Part 2-58: Tests Test Td: Test methods for solderability, resistance to dissolution of metalliza
47、tion and to soldering heat of surface mounting devices (SMD) IEC 60068-2-78, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state IEC 61605:2005, Fixed inductors for use in electronic and telecommunication equipment Marking codes IEC 62024-1:2008, High frequency inductive compone
48、nts Electrical characteristics and measuring methods Part 1: Nanohenry range chip inductor IEC 62024-2:2008, High frequency inductive components Electrical characteristics and measuring methods Part 2: Rated current of inductors for DC to DC converters IEC 62025-2:2005, High frequency inductive comp
49、onents Non-electrical characteristics and measuring methods Part 2: Test methods for non-electrical characteristics IEC 62211:2003, Inductive components Reliability management 62674-1 IEC:2012 7 ISO 3:1973, Preferred numbers Series of preferred numbers ISO 3599, Vernier callipers reading to 0,1 and 0,05 mm ISO 3611, Geometrical product specifica
