Planar Monolithics (PMI) Model ISO-26-18-SMF is a 2 to 6 GHz coaxial isolator with an insertion loss of 0.8 to 1.5 dB maximum; isolation of 13 dB; forward/reverse power of 100 W and a VSWR of 1.5:1. Housing size is 1.2" x 1.5" x 0.6"with SMA male input and SMA female output connectors. https://www.pmi-rf.com/product-details/iso-26-18-smf
