... RHH, RID, RH, P, drum core. 2, Our high permeability EE core includes EE8 core, EE11 core, EE10 core, EE12, EE13, EE5, EE6, ... EE19C, EE20A, EE22, EE25A, EE25.4, EE25F and EE35A core. 3, Applications include pulse transformers, telecommunication, broadband transformers, ... and temperature stability, large material selection, versatility of core shapes, low cost, light weight. Customer's satisfaction ...