The QBA-12+ from Mini Circuits is a 90 Degree Hybrid Coupler with Frequency 800 to 1200 MHz, Average Power 50 W, Insertion Loss 0.02 to 0.44 dB, Isolation 14 to 23 dB, Amplitude Balance 1.2 dB. Tags: Surface Mount. More details for QBA-12+ can be seen below.