Agilent/Keysight 33321YS

The Agilent/Keysight 33321YS is a step attenuator that provides precise control of RF and microwave signal levels across broadband applications. Operating from DC to 4 GHz with 0 to 70 dB attenuation range and 10 dB increments, it delivers the accuracy and repeatability required in signal conditioning for sweepers, spectrum analyzers, network analyzers, receivers, and automated test equipment. The unit handles 1 W average and 100 W peak RF input power, maintaining insertion loss of approximately 0.4 dB + 0.07 dB/GHz and maximum SWR of 1.35. Compact design with 3.5 mm connectors supports both rack-mount and benchtop configurations. Control voltage spans 24 to 30 VDC. High repeatability and proven reliability through extensive environmental qualification—temperature, shock, vibration, and humidity extremes—make this attenuator suitable for applications demanding consistent performance over numerous connection cycles. The 33321YS continues the legacy of Hewlett-Packard step attenuator technology through Agilent and Keysight platforms.