The ADT1-1WT-1+ from Mini Circuits is a Balun with Frequency 1 to 400 MHz, Amplitude Balance ± 1.16 dB, Phase Balance 0.01 to 5.96 Degree, Insertion Loss 0.36 to 0.89 dB, Current 30 mA. Tags: Surface Mount, Unbalanced to Balanced. More details for ADT1-1WT-1+ can be seen below.