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BS EN IEC 63093-6:2018:2019 Edition

BS EN IEC 63093-6:2018:2019 Edition

$142.49

Ferrite cores. Guidelines on dimensions and the limits of surface irregularities – ETD-cores for use in power supplies

Published By Publication Date Number of Pages
BSI 2019 30
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This part of IEC 63093 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of ETD-cores made of ferrite and the essential dimensions of coil formers to be used with them, as well the effective parameter values to be used in calculations involving them. It also gives guidelines on allowable limits of surface irregularities applicable to ETD-cores.

The specifications contained in this document are useful in negotiations between ferrite core manufacturers and users about surface irregularities.

The use of derived standards which give more detailed specifications of component parts while still permitting compliance with this document is discussed in Annex A.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
7 CONTENTS
9 FOREWORD
11 1 Scope
2 Normative references
3 Terms and definitions
4 Primary dimensions
4.1 General
12 4.2 Dimensions of ETD-cores
4.2.1 Principal dimensions
4.2.2 Effective parameter and Amin values
Figures
Figure 1 – Dimensions of ETD-cores
Tables
Table 1 – Dimensions of ETD-cores
13 4.3 Dimensional limits for coil formers
Figure 2 – Essential dimensions of coil formers
Table 2 – Effective parameter and Amin values
14 4.4 Pin locations and base outlines
Table 3 – Dimensional limits for coil formers
15 Figure 3 – Pin locations and base outlines viewedfrom the upper-side of the board (1 of 2)
17 4.5 Pin diameter
5 Marking
6 Mounting
7 Limits of surface irregularities
7.1 General
7.2 Examples of surface irregularities
18 7.3 Chips and ragged edges
7.3.1 General
7.3.2 Chips and ragged edges on the mating surfaces
7.3.3 Chips and ragged edges on the other surfaces
Figure 4 – Examples of surface irregularities
19 Figure 5 – Chip location for ETD-cores
20 Table 4 – Area and length reference for visual inspection
21 7.4 Cracks
7.5 Flash
7.6 Pull-outs
Figure 6 – Crack and pull-out locations for ETD-cores
22 7.7 Crystallites
Figure 7 – Crystallite location for ETD-cores
Table 5 – Limits for cracks
23 7.8 Pores
Figure 8 – Pore location for ETD-cores
24 Annex A (normative)Derived standards
25 Figure A.1 – Main dimensions of coil formers
26 Table A.1 – Main dimensions of coil formers
27 Annex B (normative)Example of dimensions for gauges to check the dimensionsof ETD�cores complying with this document
B.1 General
B.2 Procedure and requirements
Figure B.1 – Gauge dimensions
Table B.1 – Gauge dimensions
28 Annex C (informative)Reference of allowable areas of chips
Table C.1 – Allowable areas of chips for ETD-cores
29 Bibliography

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BS EN IEC 63093-6:2018
$142.49