The ACLM4618F from Cobham Signal & Control Solutions is a Limiter with Frequency 1 to 18 GHz, CW Flat Leakage 13 dBm, CW Flat Leakage 0.01 W, Flat Leakage 0.01 W, Flat Leakage 13 dBm. Tags: Module with Connectors, PIN Diode. More details for ACLM4618F can be seen below.