R574413425

Overview

The R574413425 is a terminated SP4T coaxial switch from the RAMSES series, manufactured by Radiall USA, Inc. It operates within a frequency range of DC to 18 GHz and features SMA connectors. The device maintains a 50 Ohm impedance with a maximum insertion loss of 0.5 dB and minimum isolation of 60 dB. It utilizes a normally open configuration with a coil voltage of 28 VDC. The unit supports up to 2,000,000 switching cycles and functions reliably between -40°C and +85°C.

Feature Summary

• SP4T switched topology for signal routing
• Terminated design with integrated SMA connectors
• High isolation performance at microwave frequencies

Applications

• RF test and measurement instrumentation
• Telecommunications base station architectures
• Automated semiconductor testing systems

Procurement Notes

Verify the specific termination state and connector orientation against the official datasheet before integration. Confirm that the 28 VDC coil voltage requirement aligns with the host control circuitry capabilities. Ensure environmental ratings meet the operational temperature constraints of the intended deployment environment.

Selection Notes

Select this component when an SP4T switching solution is required for frequencies up to 18 GHz. The terminated design simplifies PCB layout by eliminating external load requirements. Consider the mechanical durability and cycle life if the application involves frequent switching operations in demanding environments.

Part Context

This part belongs to the RAMSES family of high-performance RF switches. The series is engineered for applications requiring low insertion loss and high linearity. The R574413425 specifically provides a four-position switching capability with standard SMA interfaces for easy system integration.

Replacement Considerations

R574413435 is a documented substitute variant within the same product family.