The TC3-1TX+ from Mini Circuits is a Balun with Frequency 5 to 300 MHz, Insertion Loss 0.44 to 0.66 dB, Current 30 mA, Power 0.25 W, Return Loss 21.45 to 24.99 dB. Tags: Surface Mount, Unbalanced to Balanced. More details for TC3-1TX+ can be seen below.