The TX1-R5+ from Mini Circuits is a Balun with Frequency 0.8 to 500 MHz, Insertion Loss 0.74 to 2.01 dB, Current 30 mA, Power 0.25 W, Return Loss 4.63 to 16.68 dB. Tags: Surface Mount, Balanced to Balanced. More details for TX1-R5+ can be seen below.