The EI380F420DCMA from ECHO Microwave is a RF & Microwave Isolator with Frequency 380 to 420 MHz, Average Power Forward 60 W, Insertion Loss 0.3 dB, Isolation 20 dB, Operating Temperature -40 to 85 Degree C. Tags: Drop-In, Drop-In Isolator. More details for EI380F420DCMA can be seen below.