The ISA038042AA from 3Rwave is a RF & Microwave Isolator with Frequency 380 to 420 MHz, Average Power Forward 200 W, Average Power Reverse 80 W, Insertion Loss 0.4 to 0.5 dB, Isolation 16 to 20 dB. Tags: Drop-In, Drop-In Isolator. More details for ISA038042AA can be seen below.