R574403810

Overview

The R574403810 is an SP8T coaxial switch from the Ramses SMA series, designed for high-frequency applications up to 18 GHz. It features a normally open configuration with positive common terminals and operates on 28Vdc control voltage. The component utilizes D-sub connector termination and is constructed for robust RF signal routing in demanding environments.

Feature Summary

• SP8T switching topology for multi-channel signal distribution
• Normally open architecture with positive common terminal logic
• Ramses SMA interface design supporting frequencies up to 18 GHz
• D-sub connector termination for secure electrical interfacing

Applications

• RF signal routing in communication systems
• Test and measurement equipment switching matrices
• Aerospace and defense radar subsystems
• Satellite ground station signal distribution

Procurement Notes

Verify current availability status as this part may be obsolete or discontinued by the manufacturer. Confirm compatibility with existing D-sub mating connectors and 28Vdc control circuitry. Ensure that any replacement components meet the original 18 GHz frequency specifications and SP8T port requirements for system integrity.

Selection Notes

Select this component when an eight-port single-pole switching solution is required for SMA-based RF architectures. Consider the positive common terminal logic and normally open state during system design. Evaluate thermal management needs for continuous operation at maximum rated frequencies and control voltages.

Part Context

This model belongs to Radiall's Ramses series of coaxial switches, which are engineered for high-reliability RF applications. The series typically offers low insertion loss and high isolation characteristics suitable for precision instrumentation. The specific R574403810 variant provides eight output channels controlled via a standard D-sub interface.

Replacement Considerations

MFR Recommended Substitute: R524403810. Verify that the substitute maintains identical SP8T topology, 18 GHz frequency range, and D-sub termination style. Confirm that control voltage requirements and terminal logic remain compatible with existing system designs.