The TMO-1-1T+ from Mini Circuits is a Balun with Frequency 0.05 to 200 MHz, Insertion Loss 0.29 to 2.30 dB, Current 30 mA, Power 0.25 W, Return Loss 5.27 to 27.23 dB. Tags: Plug In, Unbalanced to Balanced. More details for TMO-1-1T+ can be seen below.