The 2643480102 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 43 with a burnished finish to remove sharp edges, and is characterized by typical impedance values of 64 O at 10 MHz, 92 O at 25 MHz, 127 O at 100 MHz, and 139 O at 250 MHz. The core has outer diameter A of 12.3 mm, inner diameter B of 4.95 mm, and length C of 12.7 mm, with a weight of 6 grams. The DC bias field is 0.52 Oe for 1 turn and 1 ampere, and the core length can be modified to suit specific applications. These suppression cores are ideal for signal integrity in high-frequency cable assemblies, telecommunications, and industrial equipment where EMI mitigation is critical.