R574403845

Overview

The R574403845 is an SP8T terminated coaxial switch from the Ramses series by Radiall USA, Inc. It operates at a maximum frequency of 18 GHz with a 50 Ohm impedance. The device features positive common configuration and utilizes D-sub connectors for control interface termination. Designed for robust performance, it supports 28 Vdc actuation voltage.

Feature Summary

• SP8T switching topology with terminated ports
• Positive common configuration for signal routing
• D-sub connector integration for control signals

Applications

• RF test and measurement instrumentation
• Telecommunications base station testing
• Aerospace and defense radar systems

Procurement Notes

Verify component authenticity through authorized Radiall distributors or certified partners. Confirm datasheet revisions and RoHS compliance status prior to procurement. Ensure storage conditions meet manufacturer specifications to maintain connector integrity and electrical performance over time.

Selection Notes

Select this model when eight independent output paths are required within an 18 GHz bandwidth. The positive common architecture suits applications needing a single input source distributed across multiple destinations. Verify mechanical compatibility with existing D-sub control interfaces before integration.

Part Context

This component belongs to the Ramses family of high-performance coaxial switches. The series is engineered for demanding RF environments requiring reliable signal switching. The R574403845 variant specifically provides eight-throw capability with terminated outputs to minimize reflections.

Replacement Considerations

Cross-reference with other Ramses series models such as R574403615 (SP6T) or R574403345 (SP3T) if fewer ports are sufficient. Verify that replacement units match the 18 GHz frequency limit and 50 Ohm impedance requirements.