The TC1-1T+ from Mini Circuits is a Balun with Frequency 0.4 to 500 MHz, Insertion Loss 0.32 to 1.84 dB, Current 30 mA, Power 0.25 W, Return Loss 6.90 to 28.55 dB. Tags: Surface Mount, Unbalanced to Balanced. More details for TC1-1T+ can be seen below.