The weak points of Ferrite Material are: Basically the bias characteristics is lower than Metal magnetic. The Bias characteristics goes down more if the ambient temperature goes up. The large and thick size (none EIA size), and high DC resistance. The strong points of Metal Composite are: Bias TCL characteristic for metal-epoxy composite provides better performance. Metal composite with high permeability and low core loss. High packing density, High DC bias current, Low DC resistance, Small form factor, EIA standard size, and High productivity.