The T2.5-6T-KK81+ from Mini Circuits is a Balun with Frequency 0.01 to 100 MHz, Insertion Loss 0.18 to 2.71 dB, Current 30 mA, Power 0.25 W, Return Loss 1.70 to 26.01 dB. Tags: Surface Mount, Unbalanced to Balanced. More details for T2.5-6T-KK81+ can be seen below.