BS EN IEC 61333:2019

This standard BS EN IEC 61333:2019 Marking on ferrite cores is classified in these ICS categories:

• 29.030 Magnetic materials
• 29.100.10 Magnetic components
• 29.035 Insulating materials

This document specifies marking locations and a coding system of marking on ferrite cores. An alphanumerical marking printed or attached to cores reduces the risk of incorrect assembly, mixing of materials and/or mixing of gapped cores on an assembly line. The markings of the inductance factor A_L value or of the gap length are especially important to avoid this kind of problem, and their coding system is specified in this document.