IEC 62358 ED3 provides standard AL values (inductance factors) and their tolerances of Pot, RM, ETD, E, EER, EP, PQ, PM, EC, EFD and low-profile gapped ferrite cores.
This edition includes the following significant technical changes with respect to the previous edition:
a) addition of AL value (inductance factor) and its tolerance for PM-cores;
b) addition of AL value (inductance factor) and its tolerance for EC-cores;
c) addition of AL value (inductance factor) and its tolerance for EFD-cores.
PUBLISHED
IEC 62358:2012 ED2
IN_DEVELOPMENT
IEC 62358 ED3
50.20
Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Nov 7, 2025
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