The 630-20-1F4 from MECA is a Fixed Attenuator with Frequency DC to 4 GHz, Power 2, 5, 10, 20, 50, 100, 150 W, Peak Power 1000 W, Weight 4.95 oz, Attenuation Accuracy 0.25 to 0.75 dB. Tags: Module with Connectors. More details for 630-20-1F4 can be seen below.