Silicon Labs FG25-RB4272A
- Part No.:
- FG25-RB4272A
- Manufacturer:
- Silicon Labs
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
FG25-RB4272A.pdf
- Description:
- FG25 470-510MHZ +16DBM RADIO BRD
- Quantity:
- Payment:

- Shipping:

Inventory:102
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Product details
Overview
FG25-RB4272A from Silicon Labs is a plug-in radio board for EFR32FG25 Wireless Gecko SoC evaluation and development, featuring 470 MHz RF operation, 16 dBm output power, SMA antenna connector, 1920 kB Flash/512 kB RAM, and 8 Mbit serial flash for OTA upgrades.
For engineers reviewing the FG25-RB4272A datasheet, FG25-RB4272A pinout, FG25-RB4272A application, or FG25-RB4272A equivalent, this board serves as a complete reference design for sub-GHz wireless prototyping-enabling rapid validation of mesh, point-to-point, and proprietary protocols in industrial sensing, smart metering, and LPWAN edge nodes.
Technical Context
The FG25-RB4272A implements the EFR32FG25B222F1920IM56 SoC with integrated 470 MHz transceiver, matching network optimized for 16 dBm output, and direct interface to BRD4001A (Wireless Starter Kit) or BRD4002A (Wireless Pro Kit) mainboards via standardized radio board connectors.
It supports full debug visibility through J-Link, Packet Trace Interface (PTI), Advanced Energy Monitor (AEM), and Virtual COM Port-all routed via Simplicity Connector or Mini Simplicity Connector, with breakout pads exposing all EFR32 I/O pins for hardware customization and signal probing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core SoC | EF32FG25B222F1920IM56: ARM Cortex-M33, 1920 kB Flash, 512 kB RAM |
| RF Band & Output | 470 MHz ISM band, +16 dBm max output power with matched network |
| Antenna Interface | SMA connector-enables direct connection to external 470 MHz antennas (e.g., Laird EXC470SM) |
| On-board Memory | 8 Mbit low-power serial flash (MX25R) for secure over-the-air firmware updates |
| Mainboard Compatibility | Plugs into BRD4001A (Starter Kit) or BRD4002A (Pro Kit) via standardized radio board slot |
| Debug Interfaces | J-Link debugger, PTI, AEM, VCOM, SWD, ETM trace-all accessible via Simplicity/Mini Simplicity connectors |
Availability
FG25-RB4272A is available at Aetrix Electronics and suitable for wireless protocol development, sub-GHz RF validation, and low-power IoT node prototyping requiring stable component supply and full debug ecosystem integration.
Supply support for FG25-RB4272A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Silicon Labs is a fabless semiconductor company specializing in secure, energy-efficient wireless SoCs and development tools for IoT applications.
The FG25-RB4272A belongs to Silicon Labs' Wireless Gecko evaluation platform family, designed to accelerate development of certified, production-ready sub-GHz wireless systems using EFR32FG25 SoC capabilities.
FAQ
What is the primary function of the FG25-RB4272A?
The FG25-RB4272A is a dedicated radio board that hosts the EFR32FG25B222F1920IM56 SoC and provides a complete, production-matched 470 MHz RF reference design-including matching network, SMA antenna interface, and debug infrastructure-for rapid evaluation and application development. It is not a standalone module but requires pairing with BRD4001A or BRD4002A mainboards to operate.
Which mainboards are compatible with the FG25-RB4272A?
The FG25-RB4272A is mechanically and electrically compatible with both the Wireless Starter Kit Mainboard (BRD4001A) and the Wireless Pro Kit Mainboard (BRD4002A). Pin mapping to breakout pads differs between mainboards, so users must consult the correct UG538 section corresponding to their mainboard model when routing signals or connecting peripherals.
Does the FG25-RB4272A include an antenna?
Yes-the FG25-RB4272A ships with one Laird EXC470SM 470 MHz antenna included in the kit. The board features an SMA connector for direct attachment, enabling field-replaceable or application-specific antenna selection without soldering or redesign.
Can the FG25-RB4272A be used for over-the-air (OTA) firmware updates?
Yes-the FG25-RB4272A integrates an 8 Mbit MX25R low-power serial flash memory explicitly designated for secure OTA firmware updates. This enables field-deployed devices to receive validated firmware images without physical reprogramming, supporting robust update workflows in production environments.
What debug capabilities does the FG25-RB4272A support through the mainboard?
The FG25-RB4272A leverages the host mainboard's on-board J-Link debugger to deliver full SWD debugging, real-time energy profiling via Advanced Energy Monitor (AEM), packet-level RF traffic visibility via Packet Trace Interface (PTI), and bidirectional serial communication via Virtual COM Port-all accessible through Simplicity Connector, Mini Simplicity Connector, or standard debug headers without external tools.
FG25-RB4272A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- Wireless Gecko 25
- Packaging:
- Box
- Product Status:
- Active
- Type:
- Transceiver
- Frequency:
- 470MHz ~ 510MHz
- Contents:
- Board(s)
- Utilized IC / Part:
- EFR32FG25
FG25-RB4272A FAQ
1.How can I place an order for FG25-RB4272A through Aetrix?
Please submit a Request for Quotation (RFQ) for FG25-RB4272A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for FG25-RB4272A reliable?
The price and inventory of FG25-RB4272A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FG25-RB4272A is usually 5 days.
3.What payment methods are accepted for FG25-RB4272A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FG25-RB4272A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FG25-RB4272A?
FG25-RB4272A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FG25-RB4272A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for FG25-RB4272A?
For technical support, including FG25-RB4272A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FG25-RB4272A requirements.
6.How does Aetrix verify that FG25-RB4272A is sourced from the original manufacturer or authorized distributors?
All FG25-RB4272A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that FG25-RB4272A meets industry standards.
7.What is the process for return or replacement of FG25-RB4272A?
All FG25-RB4272A units undergo pre-shipment inspection (PSI). If there is an issue with FG25-RB4272A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The FG25-RB4272A part is unused and in its original packaging.
Return procedure for FG25-RB4272A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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