R573403835

Overview

The R573403835 is an SP8T coaxial switch from the RAMSES series, manufactured by Radiall USA, Inc. It operates at a maximum frequency of 18 GHz with a 50-ohm impedance. The device utilizes a normally open configuration and requires a 28 Vdc coil voltage for actuation. It features a D-sub connector interface and is designed for surface mount or panel integration within RF signal routing systems.

Feature Summary

• SP8T switching topology for multi-path signal distribution
• RAMSES series construction for high-frequency reliability
• Normally open contact configuration for default isolation
• D-sub connector interface for standardized wiring

Applications

• RF signal routing in test and measurement equipment
• Telecommunications base station switching matrices
• Aerospace and defense radar system configurations
• Automated testing system (ATE) signal paths

Procurement Notes

Verify current availability status as this component may be subject to discontinuation or limited supply chains. Confirm that the 28 Vdc control requirement aligns with existing system power infrastructure. Ensure the D-sub connector mating compatibility matches the host board design specifications prior to procurement.

Selection Notes

Select this model when an eight-port single-pole switching solution is required for frequencies up to 18 GHz. The normally open state provides inherent isolation when de-energized, which is critical for safety or noise-sensitive applications. Verify that the 28 Vdc drive capability is supported by the controlling logic or driver circuitry in the final assembly.

Part Context

This component belongs to the RAMSES family of coaxial switches, which are engineered for robust performance in demanding RF environments. The series offers various port configurations and control voltages, with the R573403835 specifically providing an eight-channel switching capability using standard SMA interfaces and D-sub connectivity.

Replacement Considerations

Consult official Radiall documentation for direct cross-reference part numbers. Alternative SP8T switches with compatible 18 GHz performance and 28 Vdc operation should be evaluated for mechanical footprint and pinout alignment.