The MABA-011125 from MACOM is a Balun with Frequency 2 to 20 GHz, Amplitude Balance 0 to 1.25 dB, Phase Balance 0 to 6 Degrees, Insertion Loss 2 to 4 dB, Current 500 mA. Tags: Surface Mount, Unbalanced to Balanced. More details for MABA-011125 can be seen below.