The T9-1-KK81+ from Mini Circuits is a Balun with Frequency 0.15 to 200 MHz, Insertion Loss 0.70 to 1.74 dB, Current 30 mA, Power 0.25 W, Return Loss 7.60 to 21.64 dB. Tags: Surface Mount, Balanced to Balanced. More details for T9-1-KK81+ can be seen below.