The 351-259-XXX from Broadwave Technologies is a Fixed Attenuator with Frequency DC to 18 GHz, Attenuation 1 to 30 dB, Power 5 W, Peak Power 0.5 kW, Attenuation Accuracy ±0.5 dB, ±0.75 dB, ±1 dB. Tags: Module with Connectors. More details for 351-259-XXX can be seen below.