The SML0520 from Fairview Microwave is a Power Limiter for Space with Frequency 500 MHz to 2 GHz, Input Power 1 W, Peak Input Power 53.01 dBm, Peak Input Power 200 W, Insertion Loss 0.4 to 0.6 dB. Tags: Module with Connectors, Schottky Diode. More details for SML0520 can be seen below.