... THH,R4H,F,T) 1.Work steadily in big electric current 2.High electric resistance 3.Excellent NiZn Core, Drum NiZn Ferrite CoresGeneral ... is one kind of ferrite material, work steadily in big electric current, and magnetic properties of this ferrite chip are ... grain size and micro structure. 2, NiZn cores offer better miniaturization prospects, for its high electric resistance exceeding 10 Ohm-m, so ...