The MABA-011015 from MACOM is a Balun with Frequency 45 MHz to 1.2 GHz, Amplitude Balance 0.3 dB, Phase Balance 5 Degree, Insertion Loss 1.7 dB, Return Loss 11 dB. Tags: Surface Mount, Unbalanced to Balanced. More details for MABA-011015 can be seen below.