The Q3XD-665R from Electro-Photonics LLC is a 90 Degree Hybrid Coupler with Frequency 470 to 860 MHz, Average Power 135 to 200 W, Insertion Loss 0.12 to 0.2 dB, Isolation 20 to 26 dB, Coupling 3 dB. Tags: Surface Mount. More details for Q3XD-665R can be seen below.