The TT1.5-1+ from Mini Circuits is a Balun with Frequency 0.075 to 500 MHz, Insertion Loss 0.40 to 2.88 dB, Current 30 mA, Power 0.25 W, Return Loss 2.35 to 23.51 dB. Tags: Surface Mount, Unbalanced to Balanced. More details for TT1.5-1+ can be seen below.