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4.1
70 reviewsFERRITE CORES – GUIDELINES ON DIMENSIONS
AND THE LIMITS OF SURFACE IRREGULARITIES –
Part 10: PM-cores and associated parts
1 Scope
This part of IEC 63093 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of PM-cores made of magnetic oxides, the main
dimensions for coil formers to be used with these cores and the locations of their pins on a
modular printed wiring grid in relation to the base outlines of cores. It also specifies the effective
parameter values to be used in calculations and gives guidelines on allowable limits of surface
irregularities applicable to the PM-cores.
The use of derived standards which give more detailed specifications of component parts whilst
still permitting compliance with this document is discussed in Annex A.