The ADT3-1T+ from Mini Circuits is a Balun with Frequency 1 to 500 MHz, Amplitude Balance ± 0.07 to 0.98 dB, Phase Balance 0.01 to 3.67 Degree C, Insertion Loss 0.34 to 0.70 dB, Current 30 mA. Tags: Surface Mount, Unbalanced to Balanced. More details for ADT3-1T+ can be seen below.