The MACP-010383-CH0A40 from MACOM is a Directional Coupler with Frequency 4 to 862 MHz, Coupling 17 dB, Coupling Variation ±1 dB, Insertion Loss 0.6 to 1 dB, Isolation 24 to 35 dB. Tags: Surface Mount. More details for MACP-010383-CH0A40 can be seen below.