MRF39RAT-I/LY

Product Overview

MRF39RAT-I/LY from Microchip Technology is a 433/868/915 MHz SPI-controlled sub-GHz receiver. This receiver-oriented summary is written for engineers and sourcing teams that need a clear view of the receiver function, operating band and interface requirements.

The content focuses on architecture, RF band or radio standard, power/interface characteristics and practical design notes for BOM sourcing and replacement projects.

Key Features

• Manufacturer: Microchip Technology
• Part Number: MRF39RAT-I/LY
• Device Type: 433/868/915 MHz SPI-controlled sub-GHz receiver
• Receiver Architecture: Low-power sub-GHz receiver for 433 MHz, 868 MHz and 915 MHz bands
• Frequency Bands: 433 MHz, 868 MHz and 915 MHz ISM bands
• Receiver Sensitivity: -120 dBm class sensitivity
• Receive Current: 16 mA class receive current
• Sleep Current: 100 nA class low-power sleep current
• Interface: 4-wire SPI control interface
• Package: 24-pin QFN receiver package family
• Package / Case: 24-pin QFN receiver package family
• Design Notes: Plan SPI register control, preamble detection and regional band filtering for the selected ISM band.

Applications

Utility metering, alarm/security, wireless sensors and remote telemetry links in common 433/868/915 MHz ISM bands.

Embedded receiver designs that need SPI configuration, high sensitivity and low-power sleep operation.

Quality & Sourcing

Antrex Electronics can support sourcing for MRF39RAT-I/LY through available stock checks, BOM consolidation and alternative-lot review. For RF receiver and radio receiver parts, package condition, lot/date code, moisture handling and original labeling should be checked before shipment.

For shortage support or legacy builds, Antrex Electronics can coordinate visual inspection, packaging verification and third-party electrical or authenticity testing when required. This helps buyers manage risk when sourcing discontinued, allocated or hard-to-find receiver ICs and modules.