The PSC50D07S from Nuvotronics, Inc. is a Directional Coupler with Frequency 18 to 50 GHz, Coupling 18.5 to 21.5 dB, Directivity 7 to 10 dB, Average Power 20 W (CW), Insertion Loss 0.2 to 0.5 dB. Tags: Surface Mount. More details for PSC50D07S can be seen below.