The LM-30M3G-C3-1 from PMI is a high power limiter that operates from 30 MHz to 3 GHz. It can handle up to 5 W CW power and provides a maximum leakage of 10 dBm. The limiter has an insertion loss of 1.2 dB, a VSWR of 1.5:1 and operates at a temperature from -55 to 125 Degree C. It is available in a coaxial package that measures 1.314 x 0.375 diameter with SMA Male and Female connectors.