The TT1-6+ from Mini Circuits is a Balun with Frequency 0.004 to 300 MHz, Insertion Loss 0.10 to 2.74 dB, Current 30 mA, Power 0.25 W, Return Loss 4.71 to 37.84 dB. Tags: Surface Mount, Unbalanced to Balanced. More details for TT1-6+ can be seen below.