The AAT2073B2 from ASB Inc. is a RF Variable Attenuator with Frequency DC to 2.7 GHz, Attenuation Range 9 dB, Attenuation Accuracy ±0.15 to 0.5 dB, Power 0.03 to 0.50 W, P1dB 15 to 27 dBm. Tags: Surface Mount, Digital. More details for AAT2073B2 can be seen below.