The ADTL2-18+ from Mini Circuits is a Balun with Frequency 30 MHz to 1.8 GHz, Amplitude Balance ± 0.18 to 1.07 dB, Phase Balance 0.29 to 5.86 Degree, Insertion Loss 0.64 to 1.85 dB, Current 30 mA. Tags: Surface Mount, Balanced to Balanced. More details for ADTL2-18+ can be seen below.