Model: AS130060A CS330060 77071-A7 P Material: Sendust (FeSiAl) Color: Black External Diameter: approx 33mm Inside Diameter: approx 19mm Thickness: approx 10mm Inductance coefficient :AL 51nH/N2 Permeability: 60μo approx QTY:5PCS Feature of Sendust Magnetic Ring Has high saturation magnetic induction intensity (1) The core loss is lower than that of iron powder core, excessive flux powder core and iron silicon powder core The magnetostriction coefficient is near to zero, and there is no noise in various operating environments High Curie temperature and steady functionality at high temperature