The CBF-10A-375 from Crane Aerospace & Electronics is a Directional Coupler with Frequency 5 to 750 MHz, Coupling 10 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.5 dB, Directivity 20 dB. Tags: Flat Pack. More details for CBF-10A-375 can be seen below.