The SDCHP-125 from Synergy Microwave Corporation is a Bi-Directional Coupler with Frequency 10 to 250 MHz, Coupling 18.5 dB, Coupling Variation ±0.5 dB (Flatness), Power 30 W, Insertion Loss 0.1 to 0.4 dB. Tags: Surface Mount. More details for SDCHP-125 can be seen below.