R574403445

Overview

The R574403445 is a terminated coaxial switch from the Ramses series manufactured by Radiall. It features an SP4T configuration with SMA connectors and supports frequencies up to 18GHz. The device operates normally open and utilizes a positive common terminal arrangement. Actuation is provided via a 28Vdc control signal, and it includes a D-sub connector for interface connectivity.

Feature Summary

• Terminated SP4T coaxial switching architecture
• SMA connector interface supporting 18GHz operation
• Normally open state with positive common terminal
• 28Vdc actuation with D-sub control connector

Applications

• RF test and measurement systems
• Telecommunications infrastructure testing
• Aerospace and defense signal routing
• Automated test equipment (ATE) setups

Procurement Notes

Verify current availability status as the component lifecycle is listed as obsolete. Confirm compatibility with existing 28Vdc control logic and D-sub connector pinouts before procurement. Check for authorized distributor channels or surplus stock options due to discontinuation status.

Selection Notes

Select this model for applications requiring terminated RF paths at frequencies up to 18GHz. Ensure system design accommodates the normally open default state and positive common configuration. Verify that the D-sub connector interface aligns with available control hardware and cabling solutions.

Part Context

This component belongs to the Ramses series of high-performance coaxial switches designed for demanding RF environments. The series offers various configurations including SP4T and SP6T options with different frequency ratings and termination styles to suit diverse signal routing requirements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete lifecycle status, alternative sourcing may require verification of cross-reference compatibility with similar Ramses series models or equivalent terminated SP4T switches.