The YAT-4A-D+ from Mini Circuits is a Fixed Attenuator with Frequency DC to 26.5 GHz, Attenuation 3.9 to 4 dB, Power 1 to 1.7 W, Attenuation Accuracy ±0.1 to 0.2 dB, Operating Temperature -40 to 85 Degree C. Tags: Die. More details for YAT-4A-D+ can be seen below.