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IEC 60424-3 Ed. 2.0 b:2015
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IEC 60424-3 Ed. 2.0 b:2015 Ferrite cores - Guidelines on the limits of surface irregularities - Part 3: ETD-cores, EER-cores, EC-cores and E-cores
standard by International Electrotechnical Commission, 10/22/2015
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Full Description
IEC 60424-3:2015 gives guidelines on allowable limits of surface irregularities applicable to ETD-cores, EER-cores, EC-cores and E-cores in accordance with the relevant general specification. This standard is a specification useful in the negotiations between ferrite core manufacturers and customers about surface irregularities. This edition includes the following significant technical changes with respect to the previous edition:a) addition of allowable areas of chips for EC-cores in Table 3,
b) addition of crystallites in 4.5 and pores in 4.6.