The SLQ-K04 from Synergy Microwave Corporation is a 90 Degree Hybrid Coupler with Frequency 100 to 200 MHz, Average Power 1 W, Insertion Loss 0.4 to 0.8 dB, Isolation 15 to 18 dB, Coupling 3 dB. Tags: Surface Mount. More details for SLQ-K04 can be seen below.