The TRS1-1T-13-2A+ from Mini Circuits is a Balun with Frequency 50 MHz to 1 GHz, Insertion Loss 0.18 to 0.42 dB, Current 16 mA, Power 0.25 W, Return Loss Input: 23.18 to 40.67 dB, Output: 22.33 to 40.14 dB. Tags: Surface Mount, Balanced to Balanced. More details for TRS1-1T-13-2A+ can be seen below.