The DG-0018-2031 from Spectrum Elektrotechnik GmbH is a Fixed Attenuator with Frequency DC to 18 GHz, Attenuation 20 dB, Power 0.5 to 2 W, Attenuation Accuracy 0.5 dB, Operating Temperature -54 to 125 Degree C. Tags: Module with Connectors. More details for DG-0018-2031 can be seen below.