The SCZ-0131831509-SFSF-43 from ERAVANT is a 90 Degree Hybrid Coupler with Frequency 1 to 18 GHz, Average Power 50 W (CW), Insertion Loss 1.5 dB, Isolation 18 dB, Coupling 3 dB. Tags: Module with Connectors. More details for SCZ-0131831509-SFSF-43 can be seen below.