The QJE-2-.312GG from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 225 to 400 MHz, Average Power 400 W, Peak Power 1 kW, Insertion Loss 0.3 dB, Isolation 20 to 25 dB. Tags: Flatpack. More details for QJE-2-.312GG can be seen below.