Essentra Openable Ferrite Sleeve, 19.2 Dia. x 20.6mm, For Computer Peripherals, Apertures: 1, Diameter 7.6mm
6mm, For Computer Peripherals, Apertures: 1, Diameter 7.2 Dia.6mm, Series: MTFC, Type: Toroid Core, Impedance at 25 MHz: 163Ω, Key: No, Openable: Yes, Impedance at 100 MHz: 275Ω, MPN: MTFC 16816-T. x 20.