The TC4-6T-75X+ from Mini Circuits is a Balun with Frequency 0.6 to 600 MHz, Amplitude Balance ± 0 to 0.48 dB, Phase Balance 0.00 to 3.29 dB, Insertion Loss 0.77 to 1.55 dB, Current 30 mA. Tags: Surface Mount, Unbalanced to Balanced. More details for TC4-6T-75X+ can be seen below.