DIN EN 63093-4:2017-08

This document specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of RM-cores and low-profile RM-cores made of ferrite, and the locations of their terminal pins on a 2,54 mm printed wiring grid in relation to the base outlines of the cores, it also gives guidance on allowable limits of surface irregularities applicable to RM-cores in accordance with the relevant generic specification.