The TCML1-11X+ from Mini Circuits is a Balun with Frequency 600 MHz to 1.1 GHz, Insertion Loss 0.34 to 1.13 dB, Current 30 mA, Power 0.25 W, Return Loss 9.11 to 25.70 dB. Tags: Surface Mount, Balanced to Balanced. More details for TCML1-11X+ can be seen below.