The TC1-1-13M-75+ from Mini Circuits is a Balun with Frequency 4.5 MHz to 3 GHz, Amplitude Balance ± 0.21 to 1.10 dB, Phase Balance 0.06 to 8.50 Degree, Insertion Loss 0.29 to 2.39 dB, Current 30 mA. Tags: Surface Mount, Balanced to Balanced. More details for TC1-1-13M-75+ can be seen below.