The T-622-KK81+ from Mini Circuits is a Balun with Frequency 0.1 to 200 MHz, Insertion Loss 0.16 to 1.62 dB, Current 30 mA, Power 0.25 W, Return Loss 7.87 to 26.99 dB. Tags: Surface Mount, Unbalanced to Balanced. More details for T-622-KK81+ can be seen below.