... loss REACH,ROHS approved EE series soft ferrite magnetic core for inductor use,Mn-Zn ferrite magnetic cores.widely used in industries, telecommunications, computer ... .Specs:material:Mn-Zn ferrite -DK3,TD3,TD4,TD44,TD47,TD90,TD95,TD50Initial permeability:25 degree,2000-3000Saturation magnetic flux density:25 ...