The HD33214 from HD Communications Corp is a RF & Microwave Isolator with Frequency 0.4 to 0.47 GHz, Average Power Reverse 100 to 150 W, Insertion Loss 0.35 dB, Isolation 20 dB, Operating Temperature -30 to 70 Degree C. Tags: Drop-In Isolator. More details for HD33214 can be seen below.