The STL 301 from Crane Aerospace & Electronics is a Limiter with Frequency 0.5 to 18 GHz, CW Flat Leakage 14 to 16.5 dBm, CW Flat Leakage 0.025 to 0.044 W, CW Input Power 1 to 50 W, CW Input Power 30 to 46.99 dBm. Tags: Connectorized, PIN-Schottky Diode. More details for STL 301 can be seen below.