The HMC1018ALP4E from Analog Devices is a RF Variable Attenuator with Frequency 0.1 to 30 GHz, Attenuation Range 1 to 31 dB, Attenuation Step 1 dB, Attenuation Accuracy ±0.4 dB, Power 20 to 25 dBm (P0.1dB). Tags: Surface Mount, Digital. More details for HMC1018ALP4E can be seen below.