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IEC 60424-3:2015

Ferrite cores - Guidelines on the limits of surface irregularities - Part 3: ETD-cores, EER-cores, EC-cores and E-cores

General information
Withdrawn from 29.06.2018
Directives or regulations
None
Standard history
Status
Date
Type
Name
27.06.2018
Main
27.06.2018
Main
21.06.2018
Main
Main
IEC 60424-3:1999
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.
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