The DQ-TJ-510-180 from A-Info is a 180 Degree Hybrid Coupler with Frequency 500 MHz to 1 GHz, Amplitude Balance ±0.5 dB, Phase Balance ±4.0 dB, Insertion Loss 2 dB, Isolation 20 dB. Tags: Module with Connector. More details for DQ-TJ-510-180 can be seen below.