The TC9-1X+ from Mini Circuits is a Balun with Frequency 2 to 200 MHz, Insertion Loss 0.76 to 1.68 dB, Current 30 mA, Power 0.25 W, Return Loss 6.08 to 15.80 dB. Tags: Surface Mount, Unbalanced to Balanced. More details for TC9-1X+ can be seen below.