The FAC4310 from Yantel Corporation is a Fixed Attenuator with Frequency DC to 43.5 GHz, Attenuation 10 dB, Power 1 to 1.7 W, Attenuation Accuracy ±0.25 to ±0.3 dB, Operating Temperature -45 to 85 Degree C. Tags: Die, Chip, Surface Mount. More details for FAC4310 can be seen below.