DIN EN 63093-5:2017-09

This document specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of EP-cores made of ferrite, the essential dimensions of coil formers to be used with them, the locations of their terminal pins on a 2,50 mm printed wiring grid in relation to the base outlines of the cores and the effective parameter values to be used in calculations involving them, and gives guidelines on allowable limits of surface irregularities applicable to EP-cores.