METGLAS Alloy 2605S-3 is an amorphous iron-base soft magnetic alloy that can be annealed to obtain a round B-H loop which results in very low core loss at high frequencies (>1kHz). Because of its high saturation induction relative to ferrites or permalloys, significant size reductions are possible in high-frequency devices by utilizing this alloy. Unlike ferrites, it is suitable for use over a wide operating temperature range without cracking or showing large drops in usable flux density. Its uses include numerous high-frequency devices. This datasheet provides information on composition and physical properties. It also includes information on forming and heat treating. Filing Code: Fe-68. Producer or source: Allied Corporation, Metglass Products Department.