The SML8018 from Fairview Microwave is a Limiter with Frequency 8 to 18 GHz, Flat Leakage 0.03 W, Flat Leakage 16 dBm, Peak Flat Leakage 20 dBm, Peak Flat Leakage 0.1 W. Tags: Module with Connectors, PIN-Schottky Diode. More details for SML8018 can be seen below.