1、 IEC 62317-14 Edition 1.0 2008-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Ferrite cores Dimensions Part 14: EFD-cores for use in power supply applications Noyaux ferrites Dimensions Partie 14: Noyaux EFD utiliss dans des applications dalimentation lectrique IEC 62317-14:2008 THIS PUBLICATION IS
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16、s: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 62317-14 Edition 1.0 2008-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Ferrite cores Dimensions Part 14: EFD-cores for use in power supply applications Noyaux ferrites Dimensions Partie 14: Noyaux EFD utiliss dans des applications
17、 dalimentation lectrique INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE L ICS 29.100.10 PRICE CODE CODE PRIX ISBN 2-8318-1031-7 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2
18、62317-14 IEC:2008 CONTENTS FOREWORD.3 1 Scope.5 2 Normative references5 3 Primary standards.5 3.1 Dimensions of EFD-cores 5 3.1.1 Principal dimensions5 3.1.2 Effective parameter and A minvalues 7 3.2 Main dimensions for coil formers7 3.3 Pin locations and base outlines8 3.4 Pin diameter 9 4 Mounting
19、 9 Annex A (informative) EFDcore design .10 Figure 1 Dimensions of EFD-cores .6 Figure 2 Main dimensions of coil formers for EFD-cores .7 Figure 3 Pin location (SMD type) viewed from the upper side of the board.8 Figure 4 Pin locations (PTH type) viewed from the upper side of the board .9 Table 1 Di
20、mensions of EFD-cores 6 Table 2 Effective parameter and A minvalues for EFD-cores7 Table 3 Main dimensions of coil formers for EFD-cores 7 62317-14 IEC:2008 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FERRITE CORES DIMENSIONS Part 14: EFD-cores for use in power supply applications FOREWORD 1) The
21、International Electrotechnical Commission (IEC) is a worldwide organization for standardization 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
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30、ve 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 be the subject of patent rights. IEC shall not be held responsi
31、ble for identifying any or all such patent rights. International Standard IEC 62317-14 has been prepared IEC technical committee 51: Magnetic components and ferrite materials. This bilingual version, published in 2009-02, corresponds to the English version. The text of this standard is based on the
32、following documents: FDIS Report on voting 51/934/FDIS 51/938/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 acco
33、rdance with the ISO/IEC Directives, Part 2. 4 62317-14 IEC:2008 A list of all parts of the IEC 62317 series, under the general title Ferrite cores Dimensions, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the maintenance
34、result 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 reconfirmed, withdrawn, replaced by a revised edition, or amended. 62317-14 IEC:2008 5 FERRITE CORES DIMENSIONS Part 14: EFD-cores for use in
35、 power supply applications 1 Scope This part of IEC 62317 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of EFD-cores, the essential dimensions of coil formers to be used with them, and the effective parameter values to be used in calculations
36、 involving them. The selection of core sizes for this standard is based on the philosophy of including those sizes which are industrial standards, either by inclusion in national standards, or by broad-based use in industry. See IEC 62317-1 for more detail concerning the philosophy of selecting core
37、 sizes to be included. The general considerations that the design of this range of cores is based upon are given in Annex A. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For und
38、ated references, the latest edition of the referenced document (including any amendments) applies. IEC 60205, Calculation of the effective parameters of magnetic piece parts IEC 62317-1, Ferrite cores Dimensions Part 1: General specification 3 Primary standards Compliance with the following requirem
39、ents ensures mechanical interchangeability of complete assemblies and wound coil formers. 3.1 Dimensions of EFD-cores 3.1.1 Principal dimensions The principal dimensions of EFD-cores shall be as given in Figure 1 and Table 1. 6 62317-14 IEC:2008 K aC F 2F 1E A B D q K a F 2 C F 1E A q B D IEC 1466/0
40、8 aThe K dimension designates, with respect to the base level of the core, the difference in height between the base level of the core and the underside of the centre leg. In the typical case, the underside of the centre leg is above the base level of the core, and the value of K is positive. In the
41、 case that the underside of the centre leg is below the base level of the core, then the value of K will be negative. a) EFD 10/5/3, EFD 12/6/3,5 and EFD 15/8/5 b) EFD 20/10/7, EFD 25/13/9 and EFD 30/15/9 Figure 1 Dimensions of EFD-cores Table 1 Dimensions of EFD-cores Size A mm B mm C mm D mm E mm
42、F 1mm F 2mm K amm q mm EFD 10/5/3 Min. Max. 10,20 10,80 5,10 5,30 2,60 2,80 3,60 3,90 7,40 7,90 4,40 4,70 1,40 1,50 -0,20 0,20 EFD 12/6/3,5 Min. Max. 12,20 12,80 6,10 6,30 3,40 3,60 4,40 4,70 8,75 9,25 5,25 5,55 1,90 2,10 -0,20 0,20 EFD 15/8/5 Min. Max. 14,60 15,40 7,35 7,65 4,50 4,80 5,25 5,75 10,6
43、5 11,35 5,15 5,45 2,30 2,50 -0,20 0,45 EFD 20/10/7 Min. Max. 19,45 20,55 9,85 10,15 6,50 6,80 7,45 7,95 14,90 15,90 8,70 9,10 3,45 3,75 0,17 0,75 EFD 25/13/9 Min. Max. 24,35 25,65 12,35 12,65 8,90 9,30 9,05 9,55 18,10 19,30 11,20 11,60 5,05 5,35 0,60 1,00 EFD 30/15/9 Min. Max. 29,20 30,80 14,85 15,1
44、5 8,90 9,30 10,90 11,50 21,65 23,15 14,35 14,85 4,75 5,05 0,75 1,00 NOTE The dimensions of the cores may be checked by means of gauges. aThe K dimension designates, with respect to the base level of the core, the difference in height between the base level of the core and the underside of the centre
45、 leg. In the typical case, the underside of the centre leg is above the base level of the core, and the value of K is positive. In the case that the underside of the centre leg is below the base level of the core, then the value of K will be negative. 62317-14 IEC:2008 7 3.1.2 Effective parameter an
46、d A minvalues The effective parameter values for cores having the dimensions given in 3.1.1 are as shown in Table 2. Table 2 Effective parameter and A minvalues for EFD-cores Size C 1mm 1C 2mm 3A emm 2l emm V emm 3A min amm 2EFD 10/5/3 3,301 8 0,459 50 7,19 23,7 170 6,52 EFD 12/6/3,5 2,495 8 0,218 7
47、1 11,4 28,5 325 10,7 EFD 15/8/5 2,263 3 0,149 51 15,1 34,3 519 12,3 EFD 20/10/7 1,536 6 0,050 025 30,7 47,2 1 450 30,6 EFD 25/13/9 0,995 25 0,017 301 57,5 57,3 3 290 57,3 EFD 30/15/9 0,980 56 0,014 147 69,3 68,0 4 710 69,2 aSee 2.2 of IEC 60205. 3.2 Main dimensions for coil formers The main dimensio
48、ns of coil formers suitable for use with a pair of EFD-cores shall be as given in Figure 2 and Table 3. f 1S 1S 1S 2 S 2e d R 4 C 4 f 2S 1S 1IEC 1467/08 Figure 2 Main dimensions of coil formers for EFD-cores Table 3 Main dimensions of coil formers for EFD-cores e mm f 1mm f 2mm d mm S 1mm S 2mm C am
49、m R mm Size Max. Min. Min. Max. Min. Min. Nom. Nom. EFD 10/5/3 7,3 4,8 1,6 7,1 0,35 0,30 0,2 0,8 EFD 12/6/3,5 8,65 5,6 2,15 8,7 0,425 0,30 0,2 0,8 EFD 15/8/5 10,4 5,55 2,6 10,55 0,45 0,40 0,45 1,5 EFD 20/10/7 14,8 9,2 3,8 14,8 0,40 0,40 0,75 2,0 EFD 25/13/9 18,0 11,7 5,4 18,0 0,55 0,55 1,0 2,0 EFD 30/15/9 21,6 14,9 5,1 21,7 0,50 0,60 1,0 2,0 aChamfer
