The TT16-1-KK81+ from Mini Circuits is a Balun with Frequency 0.1 to 45 MHz, Insertion Loss 0.40 to 1.84 dB, Current 30 mA, Power 0.25 W, Return Loss 2.08 to 46.27 dB. Tags: Surface Mount, Unbalanced to Balanced. More details for TT16-1-KK81+ can be seen below.