R574403315

Overview

The Radiall R574403315 is an SP3T coaxial switch from the Ramses series, designed for high-frequency applications up to 18 GHz. It features a normally open configuration with SMA connectors and operates on 28 VDC. The unit utilizes TTL diodes for control and solder pin terminals for circuit integration. Key electrical specifications include a 50 Ohm impedance, 1.5:1 VSWR, 0.5 dB insertion loss, and 60 dB isolation. The switch supports a mechanical life of 2 million cycles and functions within a temperature range of -40°C to +85°C.

Feature Summary

• SP3T coaxial switching architecture optimized for RF signal routing
• High-frequency performance capability extending to 18 GHz
• Normally open contact configuration with integrated position indicators
• Robust mechanical endurance rated for two million operational cycles

Applications

• Test and measurement instrumentation requiring precise RF path selection
• Telecommunications infrastructure utilizing high-frequency signal distribution
• Aerospace and defense electronic systems demanding reliable switching
• Automotive radar and sensor networks operating in harsh environments

Procurement Notes

Verify current availability status as the component may be subject to restricted supply conditions or end-of-life notifications. Confirm that the specific ordering suffix matches the required terminal type and control logic. Ensure compatibility with existing 28 VDC power supplies and TTL control interfaces before finalizing procurement orders.

Selection Notes

Select this model when an SP3T configuration is required for frequencies up to 18 GHz. Consider the normally open state and solder pin termination for PCB integration. Evaluate the 28 VDC coil voltage against available system power rails. Verify that the SMA connector interface aligns with the system's transmission line requirements.

Part Context

This component belongs to the Ramses family of coaxial switches manufactured by Radiall. The series offers various configurations including different pole counts, connector types, and control voltages. The R574403315 specifically addresses needs for high-isolation, high-frequency switching in compact form factors suitable for dense electronic assemblies.

Replacement Considerations

Consult official Radiall documentation for direct cross-reference part numbers. Verify that any substitute maintains identical frequency ratings, voltage requirements, and physical dimensions. Ensure control logic compatibility between original and replacement units.