The JC20006000P54C30 from RFTR Electronics is a Directional Coupler with Frequency 2 to 6 GHz, Coupling 28.5 dB, Directivity 17 dB, Average Power 250 W, Insertion Loss 0.2 dB. Tags: Module with Connectors. More details for JC20006000P54C30 can be seen below.