The HG166SB-1 from Microarray Technologies Corporation is a RF Variable Attenuator with Frequency DC to 6 GHz, Attenuation Range 31.5 dB, Attenuation Accuracy -0.5 to 0.5 dB, Power 0.5 W, Insertion Loss 1.5 dB. Tags: Surface Mount, Digital, Voltage Controlled. More details for HG166SB-1 can be seen below.