The ADTL1-18-75+ from Mini Circuits is a Balun with Frequency 5 MHz to 1.8 GHz, Amplitude Balance ± 0.07 to 1.01 dB, Phase Balance 0.47 to 20.51 Degree, Insertion Loss 0.18 to 1.60 dB, Current 30 mA. Tags: Surface Mount, Balanced to Balanced. More details for ADTL1-18-75+ can be seen below.