The 2646665702 is a round cable EMI suppression core manufactured by Fair-Rite Products, designed to reduce electromagnetic interference in cable applications. This ferrite core features material grade 46 with burnished edges to remove sharp surfaces, and is characterized by typical impedance values of 69 O at 10 MHz, 105 O at 25 MHz, 169 O at 100 MHz, and 208 O at 250 MHz. The core has outer diameter A of 17.45 mm, inner diameter B of 9.5 mm, and a standard length C of 28.6 mm, with a weight of 23.1 g; the length can be modified to suit specific applications. With a calculated DC bias field of 0.32 Oe for 1 turn and 1 ampere, this core is ideal for signal integrity in high-frequency cable assemblies, telecommunications, and industrial equipment where EMI suppression is critical.