The TRS1-23-75+ from Mini Circuits is a Balun with Frequency 10 MHz to 2.2 GHz, Insertion Loss 0.27 to 2.06 dB, Current 300 mA, Power 0.5 W, Return Loss 10.63 to 34.32 dB. Tags: Surface Mount, Balanced to Balanced. More details for TRS1-23-75+ can be seen below.