The PQF-2E-500 from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 30 MHz to 1 GHz, Average Power 1 W, Insertion Loss 1.5 to 2 dB, Isolation 15 to 20 dB, Coupling -3 dB. Tags: Flatpack. More details for PQF-2E-500 can be seen below.