The BAL-0003SMG from Marki Microwave is a Balun with Frequency 500 kHz to 3 GHz, Impedance Ratio (Num) 1:2, Amplitude Balance 0.3 to 0.8 dB, Phase Balance 3 to 8 Degrees, Phase_Shift 180 Degrees. Tags: Surface Mount, Balanced to Unbalanced. More details for BAL-0003SMG can be seen below.