The ADT4-6WT from Mini Circuits is a Balun with Frequency 0.5 to 600 MHz, Amplitude Balance ± 0.06 to 0.59 dB, Phase Balance 0.00 to 12.04 Degree, Insertion Loss 0.52 to 2.16 dB, Current 30 mA. Tags: Surface Mount, Unbalanced to Balanced. More details for ADT4-6WT can be seen below.