SI4311-B1C-GMR
RF TXRX ISM 20VQFN
Quick Answer: SI4311-B1C-GMR from Silicon Labs is a EZRadio RF receiver IC.
- Manufacturer
- Silicon Labs
- Product Category
- RF Receivers
- Package
- 20-VFQFN Exposed Pad
- Stock
- 504 pcs
- Availability
- Current quantity subject to confirmation.
Product Attributes
| Manufacturer | Silicon Labs |
|---|---|
| Product Category | RF Receivers |
| Antenna Connector | PCB, Surface Mount |
| Applications | Home Automation, Remote Sensing, RKE |
| Data Interface | PCB, Surface Mount |
| Data Rate (Max) | 10kbps |
| Features | Automatic Frequency Centering (AFC) |
| Frequency | 315MHz, 434MHz |
| Min Qty | 0 |
| Modulation or Protocol | FSK |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package | Tape & Reel (TR) |
| Product status | Obsolete |
| Sensitivity | -104dBm |
| Series | EZRadio® |
| Supplier Device Package | 20-QFN (3x3) |
| Voltage - Supply | 2.7V ~ 3.6V |
| Datasheet | View Datasheet PDF |
Procurement Snapshot
Key supply and purchasing information for SI4311-B1C-GMR.
Why Source from Antrex Electronics?
Independent distribution support for verified sourcing, inspection and international procurement requirements.
Independent Distribution Support
Shortage, obsolete and hard-to-find component sourcing for production and procurement requirements.
Traceability Review
Label, lot, date code and available supply-chain documentation can be reviewed before order confirmation.
Inspection & Testing
Visual inspection, X-ray and third-party testing support can be arranged when required.
Global Procurement Support
Support for OEM, EMS, distributors and international sourcing requirements across individual parts and BOM projects.
Credentials & Verification Support
Quality controls, traceability review and inspection support for electronic component sourcing.
Detailed Description for SI4311-B1C-GMR
Product Overview
SI4311-B1C-GMR from Silicon Labs is a EZRadio RF receiver IC. This RF receiver description summarizes the receiver function, operating band, modulation or broadcast standard, interface considerations and sourcing relevance for engineering teams.
The content is written for BOM review and procurement use, focusing on practical receiver parameters rather than internal stock notes.
Key Features
- Manufacturer: Silicon Labs
- Part Number: SI4311-B1C-GMR
- Device Type: EZRadio RF receiver IC
- Receiver Architecture: EZRadio sub-GHz RF receiver with integrated synthesizer and modem
- Frequency Range: 240 MHz to 960 MHz family coverage
- Modulation: FSK, GFSK and OOK reception
- Receiver Sensitivity: Receiver sensitivity class down to about -118 dBm depending on data rate and configuration
- Data Rate: Up to 128 kbps family data-rate class
- Supply Voltage: 1.8 V to 3.6 V operating supply class
- Package: 20-pin QFN package family
- Package / Case: 20-pin QFN / QFN-style package family, GM/GMR reel ordering code
- Design Notes: Select channel bandwidth, AFC, data rate and packet handling according to the link budget and regional RF plan.
Applications
Garage-door receivers, remote controls, wireless sensors, alarm systems and low-power sub-GHz data links.
Embedded receiver designs that need common 315/433/868/915 MHz coverage with a small QFN footprint.
Quality & Sourcing
Antrex Electronics can support sourcing for SI4311-B1C-GMR through available stock checks, BOM consolidation and alternative-lot review. For RF receiver components, packaging condition, date code, MSL handling and original labeling should be verified before shipment.
For project builds, repair support or shortage coverage, Antrex Electronics can coordinate visual inspection, package verification and third-party testing when required. This helps buyers manage risk when sourcing discontinued, legacy or hard-to-find RF receiver parts.
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