The TMO-5-1T+ from Mini Circuits is a Balun with Frequency 0.3 to 300 MHz, Insertion Loss 0.76 to 2.36 dB, Current 30 mA, Power 0.25 W, Return Loss 2.63 to 17.23 dB. Tags: Plug In, Unbalanced to Balanced. More details for TMO-5-1T+ can be seen below.