The BAL-0208SMG from Marki Microwave is a Balun with Frequency 2 to 8 GHz, Impedance Ratio (Num) 1:2, Amplitude Balance 0.3 to 0.8 dB, Phase Balance 1 to 20 Degrees, Phase_Shift 180 Degrees. Tags: Surface Mount, Balanced to Unbalanced. More details for BAL-0208SMG can be seen below.