1.ferrite core|ferrite magnet|transformer core 2.range:EFD,EF,EE,EPC,ER,PQ,RM,UU,EC,DR 3.Supply grind gap ... and matched bobbin ferrite core| soft ferrite core| transformer core| ferrite magnet coreCore material: MnZn power ferrite ... material and MnZn high permeability ferrite materialcore range:EE,EF,EFD,EPC,EER,DR,EC,PQ,RM ,UUAdvantage: 1 ...