SI4311-B10-GMR

RF Receivers Overview

The SI4311-B10-GMR is a Sub-GHz radio receiver manufactured by Silicon Labs, designed for UHF applications. It operates at frequencies of 315 MHz and 433.92 MHz with a supply voltage range of 2.7 V to 3.6 V. The device features a QFN-20 package measuring 3 mm x 3 mm x 0.85 mm. It supports SMD/SMT installation and functions within a temperature range of -40 °C to +85 °C. The typical operating current is 20 mA.

RF Receivers Feature Summary

• Integrated Sub-GHz RF receiver architecture optimized for low-power wireless communication
• Supports standard industrial frequency bands including 315 MHz and 433.92 MHz
• Compact surface-mount packaging suitable for space-constrained PCB designs

RF Receivers Applications

• Wireless remote control systems
• Industrial telemetry data transmission
• Security alarm system receivers

RF Receivers Procurement Notes

This component is officially designated as End of Life (EOL) by the manufacturer. Distribution channels indicate restricted availability or discontinuation. Verify current stock status and lifecycle notifications through authorized suppliers before design finalization. Alternative sourcing strategies should be evaluated immediately due to production termination.

RF Receivers Selection Notes

Select this part only if legacy compatibility with 315 MHz or 433.92 MHz Sub-GHz protocols is required. Consider that the EOL status necessitates careful supply chain planning. Evaluate pinout and electrical specifications against existing board layouts to ensure seamless integration without redesigning the RF front-end circuitry.

RF Receivers Part Context

The SI4311 belongs to the Si431x family of single-chip Sub-GHz transceivers and receivers from Silicon Labs. This specific variant is a receiver-only solution, distinct from full transceiver models in the series. It utilizes silicon technology and is categorized under Wireless & RF Integrated Circuits, targeting cost-sensitive and power-efficient wireless connectivity needs.

RF Receivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the product's End of Life status. Designers must consult official obsolescence notices or contact the manufacturer directly for recommended replacement components.