The MABA-011013 from MACOM is a Balun with Frequency 45 MHz to 1.2 GHz, Amplitude Balance 0.2 dB, Phase Balance 2 Degree, Insertion Loss 0.7 dB, Return Loss 9.1 dB. Tags: Surface Mount, Unbalanced to Balanced. More details for MABA-011013 can be seen below.