The SAT18B05XX03 from Sainty-Tech Communications Limited is a Fixed Attenuator with Frequency DC to 3 GHz, Attenuation 3 dB, 6 dB, 10 dB, 20 dB, 30 dB, 40 dB, 50 dB, Power 5 W, Peak Power 0.5 kW, Weight 10 to 20 Gram. Tags: Module with Connectors. More details for SAT18B05XX03 can be seen below.