The TC1.33-1T-75X+ from Mini Circuits is a Balun with Frequency 3 to 500 MHz, Amplitude Balance ± 0 to 1.44 dB, Phase Balance 0.05 to 4.62 Degree, Insertion Loss 0.49 to 0.79 dB, Current 30 mA. Tags: Surface Mount, Unbalanced to Balanced. More details for TC1.33-1T-75X+ can be seen below.