Ferrite cores are offered in bead, sleeve, toroidal or flat-cable configurations for suppression of electromagnetic interference. Toroids are available with outside diameters of up to 61.40 mm and inner diameters of up to 36 mm. Beaded cores' O.D.s run to 28.50 mm, I.D.s to 12.83 mm, and lengths to 28.57 mm. Also offered are split cores for testing and verifying cores for applications.