The ADT4-1T+ from Mini Circuits is a Balun with Frequency 9 to 625 MHz, Amplitude Balance ± 0 to 0.54 dB, Phase Balance 0.01 to 7.70 Degree, Insertion Loss 0.52 to 1.63 dB, Current 30 mA. Tags: Surface Mount, Unbalanced to Balanced. More details for ADT4-1T+ can be seen below.