The MAT_4dB from MISOTECH is a Fixed Attenuator with Frequency DC to 40 GHz, Attenuation 4 dB, Power 33 dBm, Attenuation Accuracy ±0.2 to 0.4 dB, Operating Temperature -55 to 125 Degree C. Tags: Surface Mount. More details for MAT_4dB can be seen below.