The ATEK350AN4 from ATEK MIDAS is a RF Variable Attenuator with Frequency 2 to 40 GHz, Attenuation Range 17 to 52 dB, P1dB 19 dBm, IIP3 30 dBm, Insertion Loss 0.4 to 4 dB. Tags: Surface Mount, Voltage Controlled. More details for ATEK350AN4 can be seen below.