The HMC273AMS10GE from Analog Devices is a RF Variable Attenuator with Frequency 0.7 to 3.8 GHz, Attenuation Range 1 to 31 dB, Attenuation Step 1 dB, Attenuation Accuracy ±0.2 dB, Power 26 to 28 dBm (P0.1dB). Tags: Surface Mount, Digital. More details for HMC273AMS10GE can be seen below.