The 650-3-1F18 from MECA is a Fixed Attenuator with Frequency DC to 18 GHz, Power 2, 5, 10, 20, 50, 100, 150 W, Peak Power 1000 W, Weight 18.56 oz, Attenuation Accuracy 0.75 to 1.5 dB. Tags: Module with Connectors. More details for 650-3-1F18 can be seen below.