The XDL20-3-050S from TTM Technologies is a Delay Line with Frequency 869 to 1990 MHz, Mean Delay 2.88 to 5.03 nS, Insertion Loss 0.45 to 0.6 dB, Power 1 W, Return Loss 20 dB. Tags: Surface Mount, Fixed. More details for XDL20-3-050S can be seen below.