The T8-1T+ from Mini Circuits is a Balun with Frequency 0.3 to 140 MHz, Insertion Loss 0.40 to 1.15 dB, Current 30 mA, Power 0.25 W, Return Loss 2.40 to 18.05 dB. Tags: Surface Mount, Unbalanced to Balanced. More details for T8-1T+ can be seen below.