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eLibrary > BS EN IEC 63093-11:2018 Ferrite cores. Guidelines on dimensions and the limits of surface irregularities - EC-cores for use in power supply applications >

BS EN IEC 63093-11:2018 Ferrite cores. Guidelines on dimensions and the limits of surface irregularities - EC-cores for use in power supply applications, 2019

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BS EN IEC 63093-11:2018 Ferrite cores. Guidelines on dimensions and the limits of surface irregularities - EC-cores for use in power supply applications, 2019

undefined [Go to Page]
Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
CONTENTS
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Primary dimensions [Go to Page]
4.1 General
4.2 Dimensions of EC-cores [Go to Page]
4.2.1 Principal dimensions
4.2.2 Effective parameter and Amin values
Figures [Go to Page]
Figure 1 – Dimensions of EC-cores
Tables [Go to Page]
Table 1 – Dimensions of EC-cores
Table 2 – Effective parameter and Amin values
4.3 Dimensional limits for coil formers
5 Limits of surface irregularities [Go to Page]
5.1 General
5.2 Examples of surface irregularities
Figure 2 – Main dimensions of coil formers for EC-cores
Table 3 – Dimensional limits for coil formers
5.3 Chips and ragged edges [Go to Page]
5.3.1 General
5.3.2 Chips and ragged edges on the mating surfaces
5.3.3 Chips and ragged edges on the other surfaces
Figure 3 – Examples of surface irregularities
Figure 4 – Chip location for EC-cores
Table 4 – Area and length reference for visual inspection
5.4 Cracks
5.5 Flash
5.6 Pull-outs
Figure 5 – Crack and pull-out locations for EC-cores
5.7 Crystallites
5.8 Pores
Figure 6 – Crystallite location for EC-cores
Table 5 – Limits for cracks
Figure 7 – Pore location for EC-cores
Annex A (normative)Example of standard coil formers [Go to Page]
Figure A.1 – Main dimensions of coil formers for EC 35, EC 41, EC 52, EC 70 cores
Figure A.2 – Main dimensions of coil formers for EC 90 core
Table A.1 – Main dimensions of coil formers(examples from Figures A.1 and A.2) for EC-cores
Annex B (informative)Reference of allowable areas of chips [Go to Page]
Table B.1 – Allowable areas of chips for EC-cores
Bibliography [Go to Page]

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BS EN IEC 63093-11:2018 Ferrite cores. Guidelines on dimensions and the limits of surface irregularities - EC-cores for use in power supply applications, 2019

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