sales@make-tronics.com|ISO 9001:2015 Certified

Image is for representational purpose only. Actual products may vary in appearance.

SI4431-A0-FM | SILICON LABS

Name: si4431-a0-fm
Brand: Silicon Labs
SKU: si4431-a0-fm
Rating: 4.39 (36 reviews)

CategoryRF Transceiver ICs

ManufacturerSilicon Labs

IC RF TXRX ISM<1GHZ 20QFN

Expert Procurement Support

Responds within 24hrs

Have a BOM, compatibility question, or need bulk pricing? Our component specialists review every enquiry personally — no bots, no generic replies.

+91 97908 15031 sales@make-tronics.com

17 Countries Served
76,000+ Components Delivered
Zero Counterfeit Incidents Recorded

Unit Price (Indicative)

Price on Request

In Stock

Volume pricing available · Sourcing records available on request

Responds within 24 hours

Applications & Features

Product Information:

ReachStatus	REACH Unknown
RohsStatus	Unknown
MoistureSensitivityLevel	1 (Unlimited)
ExportControlClassNumber	5A991B
HtsusCode	8542.39.0010

Product Description

DigiKey Programmable	Not Verified
Type	TxRx Only
RF Family/Standard	General ISM < 1GHz
Protocol	-
Modulation	FSK, GFSK, OOK
Frequency	240MHz ~ 930MHz
Data Rate (Max)	128kbps
Power - Output	13dBm (Max)
Sensitivity	-118dBm
Memory Size	-
Serial Interfaces	SPI
GPIO	3
Voltage - Supply	1.8V ~ 3.6V
Current - Receiving	18.5mA
Current - Transmitting	18mA ~ 28mA
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	20-VFQFN Exposed Pad
Supplier Device Package	20-QFN (4x4)

FAQs

Can you guarantee authenticity for obsolete parts?

In the obsolete market, absolute guarantees are not realistic due to fragmented supply chains. Instead, we control risk through supplier selection, inspection, and risk-based testing aligned with industry standards.

What if parts fail after delivery?

All parts are covered by a 45-day functional warranty from the date of receipt. Claims must be supported by an accredited third-party test report.

Can I request specific tests before shipment?

Yes. You can request tests such as X-ray, decapsulation, electrical testing, or others based on your requirements. These are arranged through certified labs at additional cost.

Do you provide inspection or test reports?

Yes. Inspection images and test reports (if testing is conducted) can be shared prior to shipment upon request.

What happens if I reject it after inspection?

If rejection is based on valid findings from an agreed inspection or test, we will review and support resolution. Orders are otherwise non-cancellable once procurement is completed.

Do you require advance payment?

Yes. Orders are processed on advance payment due to the nature of sourcing obsolete components.

Who handles shipping and logistics?

Shipping is typically done on the customer’s DHL, FedEx, or UPS account. If needed, we can arrange shipment on your behalf.

Is escrow or milestone-based payment available?

Yes. Orders are executed through an escrow-based structure. Funds are released to the supplier only after delivery and buyer approval, ensuring control over both quality and transaction risk.

More from Silicon Labs

Additional components from the same manufacturer

Part Number / Manufacturer	Description / Specs	MOQ
SI7205-B-00-IVR Manufacturer: Silicon Labs Category: Switches Solid State	MAGNETIC SWITCH OMNIPOL SOT23-3	1
SI7204-B-00-FVR Manufacturer: Silicon Labs Category: Switches Solid State	MAGNETIC SWITCH LATCH SOT23-5	1
SI7201-B-01-FVR Manufacturer: Silicon Labs Category: Switches Solid State	MAGNETIC SWITCH OMNIPOL SOT23-3	1
SI7206-B-00-IV Manufacturer: Silicon Labs Category: Switches Solid State	MAGNETIC SWITCH LATCH SOT23-3	1
SI7205-B-00-IV Manufacturer: Silicon Labs Category: Switches Solid State	MAGNETIC SWITCH OMNIPOL SOT23-3	1

Similar in RF Transceiver ICs

Related components with similar applications

Part Number / Manufacturer	Description / Specs	MOQ
SI7205-B-00-IVR Manufacturer: Silicon Labs Category: Switches Solid State	MAGNETIC SWITCH OMNIPOL SOT23-3	1
SI7204-B-00-FVR Manufacturer: Silicon Labs Category: Switches Solid State	MAGNETIC SWITCH LATCH SOT23-5	1
SI7201-B-01-FVR Manufacturer: Silicon Labs Category: Switches Solid State	MAGNETIC SWITCH OMNIPOL SOT23-3	1
SI7206-B-00-IV Manufacturer: Silicon Labs Category: Switches Solid State	MAGNETIC SWITCH LATCH SOT23-3	1
SI7205-B-00-IV Manufacturer: Silicon Labs Category: Switches Solid State	MAGNETIC SWITCH OMNIPOL SOT23-3	1

Loading product...

si4431-a0-fm | Silicon Labs | RF Transceiver ICs | Make-Tro…