The ANO 51-2001-03 from ANOISON Electronics LLC is a Fixed Attenuator with Frequency DC to 18 GHz, Attenuation 3 dB, Power 20 W, Peak Power 300 W, Attenuation Accuracy -0.5 to 0.6 dB. Tags: Module with Connectors. More details for ANO 51-2001-03 can be seen below.