The NJ-40002_4_5 from Crane Aerospace & Electronics is a 180 Degree Hybrid Coupler with Frequency 50 to 500 MHz, Average Power 3 W, Phase Balance 3 Degree, Insertion Loss 1 dB, Isolation 25 dB. Tags: Flatpack, Surface Mount. More details for NJ-40002_4_5 can be seen below.