The JTX-2-10T+ from Mini Circuits is a Balun with Frequency 50 MHz to 1 GHz, Amplitude Balance ± 0.03 to 0.37 dB, Phase Balance 0.18 to 2.47 Degree, Insertion Loss 1.16 to 1.65 dB, Current 30 mA. Tags: Surface Mount, Unbalanced to Balanced. More details for JTX-2-10T+ can be seen below.