SKY13431-374LF

RF Switches Overview

The SKY13431-374LF is a single-pole double-throw (SPDT) radio frequency switch manufactured by Skyworks Solutions Inc. It operates within a frequency range of 500 MHz to 6 GHz and features a 50 Ohm impedance. The device utilizes GaAs technology and is housed in a compact 6-DFN (1.5x1.5 mm) surface-mount package with exposed pads. Key electrical specifications include an insertion loss of 0.8 dB, isolation of 20 dB, a P1dB compression point of 36 dBm, and an IIP3 of 57 dBm. It supports supply voltages from 2.5 V to 5 V and functions reliably across a temperature range of -40°C to +85°C.

RF Switches Feature Summary

• High linearity performance with significant third-order intercept point for signal integrity
• Low insertion loss design optimized for efficient RF signal transmission
• Compact footprint suitable for space-constrained wireless infrastructure layouts

RF Switches Applications

• WiMax base station and subscriber unit front ends
• WLAN access point antenna switching
• General purpose RF signal routing in wireless infrastructure

RF Switches Procurement Notes

Verify component authenticity through authorized distribution channels due to end-of-life status. Confirm RoHS3 compliance and MSL level 1 handling requirements during storage and assembly. Check specific datasheet revisions for any parameter updates prior to final integration into production designs.

RF Switches Selection Notes

Evaluate the trade-off between the 20 dB isolation and 0.8 dB insertion loss against system noise figure requirements. Ensure the 57 dBm IIP3 meets linearity needs for high-power environments. Consider the 6-DFN package thermal dissipation capabilities when designing the PCB layout for continuous operation.

RF Switches Part Context

This component belongs to the Skyworks SKY13431 series of general-purpose RF switches. It is designed for robust performance in wireless infrastructure applications requiring reliable signal path management. The part represents a specialized solution for frequencies up to 6 GHz, distinct from lower-frequency or higher-port-count variants in the manufacturer's portfolio.

RF Switches Replacement Considerations

The SKY13431-374LF is marked as obsolete with a final order date of January 21, 2026. Designers should identify alternative SPDT switches from the same manufacturer that offer compatible pinouts and electrical characteristics to ensure long-term supply chain stability.