The TC-18500-20-2.4 from Talent Microwave Inc is a Directional Coupler with Frequency 18 to 50 GHz, Coupling 20 dB, Coupling Variation ±1.2 dB, Directivity 10 to 12 dB, Average Power 50 W. Tags: Module with Connectors. More details for TC-18500-20-2.4 can be seen below.