R574403345

Overview

The R574403345 is a terminated Ramses series coaxial switch manufactured by Radiall USA, Inc. It features an SP3T configuration with SMA connectors and operates up to 18 GHz. The device utilizes normally open logic with positive common diodes and requires a 28 Vdc control voltage via a D-sub connector. Constructed for high-frequency applications, it ensures signal integrity within its specified operational range.

Feature Summary

• Terminated Ramses architecture for stable RF performance
• SP3T switching topology with normally open state
• Integrated D-sub connector for 28 Vdc control interface

Applications

• High-frequency test and measurement equipment
• Telecommunications signal routing systems
• Aerospace and defense radar subsystems

Procurement Notes

Verify component status as obsolete through official manufacturer channels. Confirm availability of remaining stock or suitable alternatives. Ensure compatibility with existing 28 Vdc control circuits and SMA interconnect infrastructure before procurement planning.

Selection Notes

Evaluate the 18 GHz frequency limit against system requirements. Assess the SP3T configuration suitability for signal path management. Consider the terminated Ramses design for impedance stability in critical RF applications requiring precise switching control.

Part Context

This component belongs to the Ramses family of coaxial switches, designed for robust performance in demanding environments. The terminated design minimizes reflections, ensuring consistent signal transmission across the specified bandwidth while maintaining reliable switching operations.

Replacement Considerations

Public confirmed substitute part numbers are not available due to the obsolete status. Consult manufacturer documentation for direct replacements or updated series equivalents that match the SP3T configuration and 18 GHz specifications.