... Mn-Zn soft ferrite core low cost high permeability,low loss REACH,ROHS approved EF series soft ferrite magnetic core,Mn-Zn ferrite magnetic cores ... , the automobile electronics, and military industry.Specs:material:Mn-Zn ferrite -DK3,TD3,TD4,TD44,TD47,TD90,TD95,TD50Initial permeability:25 ... :>=190 degreeElectric resistivity:4-9 Ω*m low cost & low loss ee65 ferrite core