The TC1-1-13M+ from Mini Circuits is a Balun with Frequency 4.5 MHz to 3 GHz, Amplitude Balance ± 0.14 to 0.78 dB, Phase Balance 0.11 to 12.32 Degree, Insertion Loss 0.18 to 3.02 dB, Current 30 mA. Tags: Surface Mount, Balanced to Balanced. More details for TC1-1-13M+ can be seen below.