The TCM1-1X+ from Mini Circuits is a Balun with Frequency 1.5 to 500 MHz, Insertion Loss 0.88 to 2.38 dB, Current 30 mA, Power 0.25 W, Return Loss 7.88 to 21.15 dB. Tags: Surface Mount, Balanced to Balanced. More details for TCM1-1X+ can be seen below.