The TRS1.33-132-75+ from Mini Circuits is a Balun with Frequency 25 MHz to 1.3 GHz, Amplitude Balance ± 0.04 to 1.05 dB, Phase Balance 0.62 to 7.34 Degree, Insertion Loss 0.71 to 1.42 dB, Current 30 mA. Tags: Surface Mount, Unbalanced to Balanced. More details for TRS1.33-132-75+ can be seen below.