The ATN10-0040PSM from Marki Microwave is a Fixed Attenuator with Frequency DC to 40 GHz, Attenuation 10 dB, Power 2 W, Attenuation Accuracy ±0.4 dB, Operating Temperature -55 to 100 Degree C. Tags: Surface Mount. More details for ATN10-0040PSM can be seen below.