... gapped core 3.supply with matched bobbin 4.ToHs soft ferrite toroid cores Description:1.Shape:bar ,ball,strip,stick,coil ... , block,sheet,cup shape.2. Composite: fe2o3 ,softmagnetism ferrite core3. µi:(Initial Permeability)400~6004.Cutie Temperature 150~3005 ... .1~2.07.Size: we have all kind of size ferrite cores,can be designed by the customerOther information:Packaging details ...