1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationHigh Frequency InductiveComponents Fixed surface mount inductors for use in electronic and telecommunication equipmentBS EN 62674-1:2012Copyright European Committee for Electrote
2、chnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-National forewordThis British Standard is the UK implementation of EN 62674-1:2012. It is identical to IEC 62674-1:2012.The UK participation in its pre
3、paration was entrusted to Technical Committee EPL/51, Transformers, inductors, magnetic components and ferrite materials.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a co
4、ntract. Users are responsible for its correct application. The British Standards Institution 2013.Published by BSI Standards Limited 2013 ISBN 978 0 580 71128 2 ICS 29.100.10 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under th
5、e authority of the Standards Policy and Strategy Committee on 31 January 2013.Amendments issued since publicationDate Text affectedBRITISH STANDARDBS EN 62674-1:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproducti
6、on or networking permitted without license from IHS-,-,-EUROPEAN STANDARD EN 62674-1 NORME EUROPENNE EUROPISCHE NORM December 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Manageme
7、nt Centre: Avenue Marnix 17, B - 1000 Brussels 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62674-1:2012 E ICS 29.100.10 English version High frequency inductive components - Part 1: Fixed surface mount inductors for use i
8、n electronic and telecommunication equipment (IEC 62674-1:2012) Composants inductifs haute frquence - Partie 1: Inductances fixes pour montage en surface utilises dans les matriels lectroniques et les quipements de tlcommunications (CEI 62674-1:2012) Induktive Hochfrequenzbauelemente - Teil 1: Oberf
9、lchenmontierbare Festinduktivitt fr den Einsatz in Elektronik und Telekommunikationsgerten (IEC 62674-1:2012) This European Standard was approved by CENELEC on 2012-11-16. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Eur
10、opean Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official ve
11、rsions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical c
12、ommittees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovaki
13、a, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 62674-1:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 62674-1:2012 - 2
14、 - Foreword The text of document 51/1006/FDIS, future edition 1 of IEC 62674-1, prepared by IEC TC 51, “Magnetic components and ferrite materials“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62674-1:2012. The following dates are fixed: latest date by which the docume
15、nt has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-08-16 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2015-11-16 Attention is drawn to the possibility that some of the elemen
16、ts of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62674-1:2012 was approved by CENELEC as a European Standard without any modification.
17、 BS EN 62674-1:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 3 - EN 62674-1:2012 Annex ZA (normative) Normative references to international publicatio
18、ns with their corresponding European publications 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 do
19、cument (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60068-1 + corr. October 1988 1988 Environmental testing - Part 1: General and guidance EN
20、 60068-11) 1994 IEC 60068-2-1 2007 Environmental testing - Part 2-1: Tests - Test A: Cold EN 60068-2-1 2007 IEC 60068-2-2 2007 Environmental testing - Part 2-2: Tests - Test B: Dry heat EN 60068-2-2 2007 IEC 60068-2-14 2009 Environmental testing - Part 2-14: Tests - Test N: Change of temperature EN
21、60068-2-14 2009 IEC 60068-2-45 - Environmental testing - Part 2: Tests - Test Xa and guidance: Immersion in cleaning solvents EN 60068-2-45 - IEC 60068-2-58 2004 Environmental testing - Part 2-58: Tests - Test Td: Test methods for solderability, resistance to dissolution of metallization and to sold
22、ering heat of surface mounting devices (SMD) EN 60068-2-58 + corr. December 2004 2004 IEC 60068-2-78 - Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state EN 60068-2-78 - IEC 61605 2005 Fixed inductors for use in electronic and telecommunication equipment - Marking codes EN
23、61605 2005 IEC 62024-1 + corr. July 2008 2008 High frequency inductive components - Electrical characteristics and measuring methods - Part 1: Nanohenry range chip inductor EN 62024-1 2008 IEC 62024-2 2008 High frequency inductive components - Electrical characteristics and measuring methods - Part
24、2: Rated current of inductors for DC to DC converters EN 62024-2 2009 IEC 62025-2 2005 High frequency inductive components - Non-electrical characteristics and measuring methods - Part 2: Test methods for non-electrical characteristics EN 62025-2 2005 IEC 62211 2003 Inductive components - Reliabilit
25、y management EN 62211 2004 ISO 3 - Preferred numbers - Series of preferred numbers - - 1) EN 60068-1 includes A1 to IEC 60068-1+ corr. October . BS EN 62674-1:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction
26、 or networking permitted without license from IHS-,-,-EN 62674-1:2012 - 4 - Publication Year Title EN/HD Year ISO 3599 - Vernier callipers reading to 0,1 and 0,05 mm - - ISO 3611 - Geometrical product specifications (GPS) - Dimensional measuring equipment: Micrometers for external measurements - Des
27、ign and metrological characteristics EN ISO 3611 - ISO 6906 - Vernier callipers reading to 0,02 mm - - BS EN 62674-1:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license f
28、rom IHS-,-,- 2 62674-1 IEC:2012 CONTENTS 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
29、.2 Tolerance for nominal inductance or 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
30、tests . 14 10.1.2 Referee condition 14 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
31、.3.6 Rated current 25 10.4 Mechanical performance 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 Vib
32、ration 27 10.4.8 Resistance to shock 27 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 BS EN 62674-1:2012Copyright European Committee for Electrotechnical Standar
33、dization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-62674-1 IEC:2012 3 Bibliography 31 Figure 1 Shapes of inductor and ferrite beads (examples) 9 Figure 2 Example of circuit for measurement by the bridge method 15 Figu
34、re 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 . 19 Figure 6 Example of a circuit for measurement by
35、 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 inductance value 8 Table 2 Dimensions for shape D 10 T
36、able 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 inductance or impedance 12 Table 8 Tolerance for nominal
37、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 conditions for cold 28 Table 13 Combined test condit
38、ions for dry heat 28 Table 14 Test conditions for change of temperature . 29 Table 15 Test conditions for damp heat (steady state) . 30 BS EN 62674-1:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or netwo
39、rking permitted without license from IHS-,-,- 6 62674-1 IEC:2012 HIGH FREQUENCY INDUCTIVE COMPONENTS Part 1: Fixed surface mount inductors for use in electronic and telecommunication equipment 1 Scope This part of IEC 62674 applies to fixed surface mount inductors and ferrite beads. The object of th
40、is 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 general guidance. 2 Normative references The following documents, in whole or in part, are normatively ref
41、erenced 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 (including any amendments) applies. IEC 60068-1:1988, Environmental testing Part 1: General and guidance IEC
42、 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: Tests Test N: Change of temperature IEC 60068-2-45, Basic environmental testing procedures Part 2-45: T
43、ests 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 metallization and to soldering heat of surface mounting devices (SMD) IEC 60068-2-78, Environmental testing Part
44、 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 components Electrical characteristics and measuring methods Part 1: Nanohenry range chip inductor IEC 62024-2:
45、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 components Non-electrical characteristics and measuring methods Part 2: Test methods for non-electrical cha
46、racteristics IEC 62211:2003, Inductive components Reliability management BS EN 62674-1:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-62674-1 IEC:2012 7
47、 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 specifications (GPS) Dimensional measuring equipment: Micrometers for external measurements Design and metrological characteristics ISO 6906, Vernier callip
48、ers reading to 0,02 mm 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 rated current maximum current which may be loaded continuously by inductors at the rated temperature Note 1 to entry: A DC saturation limited current value or a temperature rise limited current value, whichever is less, has been adopted as the rated current (see IEC 62024-2:2008, Clause 7). 3.2 operating temperature range category temperature ra
