... resistance 3.Excellent NiZn Core, Drum NiZn Ferrite CoresGeneral Introduction 1, NiZn ferrite core is one kind of ferrite material, work steadily in ... properties of this ferrite chip are determined by chemical composition, porosity, grain size and micro structure. 2, NiZn cores offer better ... 3, The series of NiZn ferrite core is including DR core, RI core, DRWW core, RWW cores, RID core, RHH core, ...