Ferroxcube EP and EPX Cores: 58 part numbers in 5 materials (3C90, 3C91, 3C96, 3F36, 3F46).

TDK EPO-type ferrite cores: 17 part numbers in production, materials N45, T38, T57.

TDK EPX-type ferrite cores: 61 part numbers in production, materials N45, T38, T57.

TDK EP-type ferrite cores: 127 part numbers in production, materials N30, N45, N49, N87, N92, N95, PC47, T38, T57, T65.