TIA-TECH P/N W5 SRH ferrite snap-on filters. Black Plastic case with type W5 split core material. Clamps around 1/2"cable and blocks noise. Frequencies from 25MHz to above 500MHz. impedance: 100+ @ 25MHz /200+ @ 100MHz
L: 1.3" W: 1.23" H: 1.2." WT: .18
