The AN11 from Smiths Interconnect is a RF Variable Attenuator with Frequency DC to 6 GHz, Attenuation Range 1 to 2 dB, Attenuation Accuracy 0.5 dB, Power 0.1 W, Operating Temperature -55 to 150 Degree C. Tags: Surface Mount, Temperature Variable. More details for AN11 can be seen below.