... .range:EFD,EF,EE,EPC,ER,PQ,RM,UU,EC,DR 3.Supply grind gap and matched bobbin ferrite core| soft ... high permeability ferrite materialcore range:EE,EF,EFD,EPC,EER,DR,EC,PQ,RM ,UU Advantage: 1.We can supply the ... .21.367.6268.684660260024.00 ER2010 ferrite core be popular used in led driver transformer