The HG165S-5 from Microarray Technologies Corporation is a RF Variable Attenuator with Frequency DC to 20 GHz, Attenuation Range 31.5 dB, Attenuation Accuracy ±0.4 dB, Power 0.5 W, Insertion Loss 4.5 dB. Tags: Surface Mount, Digital, Voltage Controlled. More details for HG165S-5 can be seen below.