R574403800

Overview

The R574403800 is an SP8T coaxial switch from the Ramses series, manufactured by Radiall USA, Inc. It features a single common port and eight terminated throw ports with SMA connectors. The device operates at a maximum frequency of 18 GHz and supports normally open switching logic. It utilizes a positive common configuration and requires a 28Vdc control voltage for operation. The unit employs pin terminals for interface connections.

Feature Summary

• SP8T topology with one common port and eight terminated throw ports
• Ramses series design optimized for high-frequency performance up to 18 GHz
• Positive common switching logic with normally open state
• Integrated termination on all throw ports

Applications

• RF signal routing in communication systems
• Test and measurement instrumentation
• Phased array antenna beamforming networks

Procurement Notes

Verify the specific datasheet version and mechanical drawings prior to integration. Confirm that the 28Vdc control requirement aligns with system power supplies. Ensure SMA connector compatibility with existing PCB layouts. Check for any environmental compliance certifications required for the target application region.

Selection Notes

Select this component when an eight-channel RF switching solution is required within the 18 GHz bandwidth. The integrated termination simplifies circuit design by eliminating external load requirements. Consider the 28Vdc drive voltage when designing control logic interfaces. Evaluate the physical footprint against available board space constraints.

Part Context

This part belongs to the Ramses family of coaxial switches, which are designed for robust RF performance. The series offers various configurations including SP6T and SP8T variants. These switches are engineered for applications demanding low insertion loss and high isolation across wide frequency ranges.

Replacement Considerations

Public confirmed substitute part numbers: R574403615 (SP6T variant), R574412620 (SP6T industrial variant).