The SYBDC-15-52VHP+ from Mini Circuits is a Bi-Directional Coupler with Frequency 10 to 520 MHz, Coupling 15 dB, Coupling Variation ± 0.4 dB, Power 30 W, Insertion Loss 0.5 to 0.7 dB. Tags: Surface Mount. More details for SYBDC-15-52VHP+ can be seen below.