The AT06-03-XX from Withwave is a Fixed Attenuator with Frequency DC to 18 GHz, Attenuation 1 to 60 dB, Power 5 W, Attenuation Accuracy ±0.3 to 1.2 dB, Operating Temperature -55 to 125 Degree C. Tags: Module with Connectors. More details for AT06-03-XX can be seen below.