The ESL8596A2 from Eclipse MDI is a Limiter with Frequency 8.5 to 9.6 GHz, CW Flat Leakage 14 dBm, CW Flat Leakage 0.02 W, Peak Flat Leakage 17 dBm, Peak Flat Leakage 0.05 W. Tags: Module with Connectors, PIN-Schottky Diode. More details for ESL8596A2 can be seen below.