The TC1-15X+ from Mini Circuits is a Balun with Frequency 350 MHz to 1.5 GHz, Insertion Loss 0.46 to 0.71 dB, Current 30 mA, Power 0.25 W, Return Loss 7.58 to 30.48 dB. Tags: Surface Mount, Balanced to Balanced. More details for TC1-15X+ can be seen below.