The 351-186-XXX from Broadwave Technologies is a Fixed Attenuator with Frequency DC to 6 GHz, Attenuation 0.5 to 30 dB, Power 2 W, Peak Power 0.5 kW, Attenuation Accuracy ±0.5 dB, ±0.75 dB. Tags: Module with Connectors. More details for 351-186-XXX can be seen below.