The ADTT4-1+ from Mini Circuits is a Balun with Frequency 0.2 to 120 MHz, Amplitude Balance ± 0 to 0.13 dB, Phase Balance 0.00 to 5.85 Degree, Insertion Loss 0.38 to 0.68 dB, Current 30 mA. Tags: Surface Mount, Unbalanced to Balanced. More details for ADTT4-1+ can be seen below.