The HMC1019ALP4E from Analog Devices is a RF Variable Attenuator with Frequency 0.1 to 30 GHz, Attenuation Range 0.5 to 15.5 dB, Attenuation Step 0.5 dB, Attenuation Accuracy ±0.3 dB, Power 22 to 25 dBm (P0.1dB). Tags: Surface Mount, Digital. More details for HMC1019ALP4E can be seen below.