The ATN03-0050CSP1 from Marki Microwave is a Fixed Attenuator with Frequency DC to 50 GHz, Attenuation 2 to 2.85 dB, Power 1 W, Insertion Loss 2 to 2.85 dB, Operating Temperature -55 to 100 Degree C. Tags: Chip, Surface Mount. More details for ATN03-0050CSP1 can be seen below.