This International Standard specifies the shapes and dimensions of ferrite cores for inductive components (transformers and chokes) of which the coil is typically constructed by multi-layer board or the coil is part of the motherboard.
The general consideration upon which the design of^his range of cores is based is given in Annex A.
IEC 62317-9:2006 Referenced Document
IEC 60205 Calculation of the effective parameters of magnetic piece parts; Corrigendum 1*, 2018-07-01 Update
IEC 62317-4:2005 Ferrite cores - Dimensions - Part 4: RM-cores made of ferrite and associated parts
IEC 62317-9:2006 Ferrite cores - Dimensions - Part 9: Planar cores has been changed from IEC 61860:2000 Dimensions of low-profile cores made of magnetic oxides.