The ZDC9-20L10-678-1432 from COM-MW is a Bi-Directional Coupler with Frequency 10 to 678 MHz, Coupling 19 to 21 dB, Power 25 W, Insertion Loss 0.2 to 0.6 dB, Directivity 15 to 18 dB. Tags: Surface Mount. More details for ZDC9-20L10-678-1432 can be seen below.