The AAT530B6 from ASB Inc. is a RF Variable Attenuator with Frequency 500 MHz to 3 GHz, Attenuation Range 31.5 dB, Attenuation Accuracy ±0.2 to 0.5 dB, Power 0.5 W, P1dB 24 to 27 dBm. Tags: Surface Mount, Digital. More details for AAT530B6 can be seen below.