The D150NA30C4 from TTM Technologies is a Fixed Attenuator with Frequency DC to 4.6 GHz, Attenuation -38 to -22.3 dB, Power 150 W, Attenuation Accuracy ±1.5 dB, Operating Temperature -55 to 200 Degree C. Tags: Surface Mount. More details for D150NA30C4 can be seen below.