The EDC10-183+ from Mini Circuits is a Directional Coupler with Frequency 6 to 18 GHz, Coupling 9.2 to 12.5 dB, Directivity 8.9 to 18 dB, Average Power 0.31 to 0.63 W, Insertion Loss 1 to 2.3 dB. Tags: Surface mount. More details for EDC10-183+ can be seen below.