The HLM-20PSM from Marki Microwave is a Limiter with Frequency DC to 20 GHz, Flat Leakage 0.019 to 0.05 W, Flat Leakage 13 to 17 dBm, Input Power 37 dBm, Input Power 5 W. Tags: Surface Mount, PIN-Schottky Diode. More details for HLM-20PSM can be seen below.