The TC-20180-13S from Talent Microwave Inc is a Directional Coupler with Frequency 2 to 18 GHz, Coupling 13 dB, Coupling Variation ±1.2 dB, Directivity 12 to 15 dB, Average Power 50 W. Tags: Module with Connectors. More details for TC-20180-13S can be seen below.