The BAL-0620SMG from Marki Microwave is a Balun with Frequency 6 to 20 GHz, Impedance Ratio (Num) 1:2, Amplitude Balance 0.2 to 0.6 dB, Phase Balance 1 to 15 Degrees, Phase_Shift 180 Degrees. Tags: Surface Mount, Balanced to Unbalanced. More details for BAL-0620SMG can be seen below.