The LS1118 from Herotek is a Limiter with Frequency 11 to 18 GHz, Flat Leakage 0.019 W, Flat Leakage 13 dBm, CW Input Power 1 W, CW Input Power 30 dBm. Tags: Module with Connectors, Surface Mount, PIN Diode. More details for LS1118 can be seen below.