R573403420

Overview

The R573403420 is a Ramses series coaxial switch manufactured by Radiall. It features an SP4T topology with SMA connectors and operates up to 18 GHz. The device utilizes normally open contacts controlled by a 28 VDC TTL signal. Key electrical parameters include a 50 Ohm impedance, 1.5:1 VSWR, 0.5 dB insertion loss, and 60 dB isolation. It employs solder terminals for mounting.

Feature Summary

• SP4T switching topology within the Ramses series
• SMA connector interface supporting frequencies up to 18 GHz
• Normally open contact configuration activated by 28 VDC TTL control signals

Applications

• RF signal routing in test and measurement equipment
• Telecommunications infrastructure requiring high-frequency switching
• Aerospace and defense radar systems

Procurement Notes

Verify component authenticity and current availability directly with Radiall USA, Inc. or authorized distributors. Confirm manufacturing status and lead times as supply conditions may vary. Ensure compatibility with system voltage requirements and interface specifications before procurement.

Selection Notes

Select this model for applications requiring SP4T switching at frequencies up to 18 GHz. Verify that the 28 VDC TTL control logic matches the driving circuitry. Ensure the SMA connector type and solder terminal package are compatible with the PCB layout and housing constraints.

Part Context

This component belongs to the Ramses family of coaxial switches from Radiall. The series offers various pole configurations and connector options. The R573403420 specifically provides four-position switching capability with SMA interfaces, designed for reliable performance in demanding RF environments.

Replacement Considerations

Consider models like R573403400 for similar SP4T specifications but verify connector differences. Check R573403020 for higher port counts. Always confirm electrical parameters and mechanical dimensions match the original design requirements.