The SCZ-0431231609-SFSF-43 from ERAVANT is a 90 Degree Hybrid Coupler with Frequency 4 to 12.4 GHz, Average Power 50 W (CW), Insertion Loss 1 dB, Isolation 16 dB, Coupling 3 dB. Tags: Module with Connectors. More details for SCZ-0431231609-SFSF-43 can be seen below.