UNE-EN IEC 63093-13:2019 Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 13: PQ-cores (Endorsed by Asociación Española de Normalización in May of 2019.)
2019UNE-EN IEC 63093-13:2019 Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 13: PQ-cores (Endorsed by Asociación Española de Normalización in May of 2019.)