TF-99 Suitable for RG213 cable

Permeability (µi): 500
    Min. impedance (Ohm @ Freq.): 80 Ohm @ 25 MHz   /  150 Ohm @ 100 MHz
    Outer diameter (metric): 26 mm
    Inner diameter (metric): 13 mm
    Length (metric): 28 mm
    Outer diameter (imperial): 1.02 in
    Inner diameter (imperial): 0.512in
    Length (imperial): 1.102 in

Common mode rejection choke on coaxial cables
When on the screen of a coaxial cable there is a RF current it is necessary to include a common mode choke, this situation often happens when you change from an unbalanced impedance  to a balanced one (coaxial cable on balanced dipole antenna). This ferrite is compatible with all coaxial cables up to 12mm diameter including RG213, RG214, RG9, BWL400, LMR400, RG393, RG115, etc..., for this application it is recommended a choke impedance of at least 10 times higher than that of the coaxial cable