The ACLM4891 from Cobham Signal & Control Solutions is a Limiter with Frequency 600 MHz to 3.1 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. More details for ACLM4891 can be seen below.