The VWA0000947AA from Vectrawave is a RF Variable Attenuator with Frequency DC to 18 GHz, Attenuation Range 27.9 dB, Attenuation Step 0.9 dB (LSB), Power 0.25 W, P1dB 24 dBm. Tags: Surface Mount, Digital. More details for VWA0000947AA can be seen below.