The HMC470A from Analog Devices is a RF Variable Attenuator with Frequency 0.1 to 3 GHz, Attenuation Range 1 to 31 dB, Attenuation Step 1 dB, Power 25 to 27 dBm (P0.1dB), IIP3 50 dBm. Tags: Surface Mount, Digital. More details for HMC470A can be seen below.