PE-W42AT5001

Overview

The PE-W42AT5001 is a WR-42 waveguide direct read attenuator manufactured by Pasternack. It operates within a frequency range of 18 GHz to 26.5 GHz and provides an attenuation adjustment from 0 dB to 50 dB. The device features a UG-595/U square cover flange interface with a dial mechanism for continuous variable control. It supports power ratings between 1W and 2W, depending on the specific operational configuration, and maintains a VSWR of up to 1.75:1. This component is designed for precise signal level management in high-frequency microwave applications.

Feature Summary

• Continuous variable attenuation capability with direct read dial functionality
• WR-42 waveguide interface design for standardized integration
• Supports DC to 18GHz base frequency range extension

Applications

• Microwave test and measurement instrumentation
• Telecommunications equipment signal conditioning
• Radar system calibration and testing

Procurement Notes

Verify the specific datasheet version for exact power handling limits, as sources indicate variations between 1W and 2W ratings. Confirm that the UG-595/U flange matches your system requirements. Ensure the operating frequency falls strictly within the 18 GHz to 26.5 GHz range to maintain specified performance characteristics. Check for RoHS compliance status if required for your assembly.

Selection Notes

Select this model when WR-42 waveguide compatibility is mandatory. Choose based on the need for analog continuous adjustment rather than stepped values. Consider the physical size constraints associated with waveguide components. Verify that the 1.75:1 VSWR meets your system's reflection coefficient requirements. Evaluate the direct read dial utility against digital control needs.

Part Context

This component belongs to Pasternack's line of RF attenuators, specifically designed for waveguide applications. It complements their broader portfolio of coaxial and modular attenuators. The PE-W42AT5001 addresses niche high-frequency requirements where standard coaxial solutions are impractical due to size or loss limitations at millimeter-wave frequencies.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Waveguide interfaces are highly specific; generic replacements may not fit UG-595/U flanges. Verify mechanical dimensions and impedance matching before considering alternative manufacturers.