Part No :

SI4431-B1-FMR

Manufacturer
Silicon Labs
VIGOR # :

4074694

Description
IC RF TXRX ISM<1GHZ 20VFQFN
Catalog
RF Transceiver ICs
DataSheet
SI4431-B1-FMR PDF
Country of origin
-
Date code
-
ads
Type Description
Series:-
Package:Tape & Reel (TR)
Part Status:Not For New Designs
Type:TxRx Only
RF Family/Standard:General ISM < 1GHz
Protocol:-
Modulation:FSK, GFSK, OOK
Frequency:240MHz ~ 930MHz
Data Rate (Max):256kbps
Power - Output:13dBm (Max)
Sensitivity:-121dBm
Memory Size:-
Serial Interfaces:SPI
GPIO:3
Voltage - Supply:1.8V ~ 3.6V
Current - Receiving:18.5mA
Current - Transmitting:17mA ~ 30mA
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:20-VFQFN Exposed Pad
Supplier Device Package:20-QFN (4x4)
  • Please confirm the specifications of the products when ordering.
  • MOQ means the minimum order quantity required to purchase each parts.
  • If you have special order instructions,please note it on the ordering pages.
  • The Pre-Shipment Inspection (PSI) will be applied.
  • You can email us to change the order details before shipment.
  • Orders cannot be canceled after shipping the packages.
  • TT in advance (bank transfer), Credit Card, PayPal can be chosen.
  • Cash transfer only. (Transfer with checks and bills are not accepted.)
  • Customer is responsible for paying all possible charges,including sales tax, VAT and customs charges,etc.
  • If you need the detailed invoice or tax ID,please email us.
  • FedEx, DHL, and UPS can be selected.
  • You can select whether to charge shipping fee by your shipping account or to charge by our side.
  • Please confirm with the logistics company in advance if you are in a remote area. (It may cost extra fees (35-50 USD) for delivery at those areas.)
  • The shopping cart will automatically calculate the shipping cost.
  • Delivery time: At the same day (Order deadline is 2pm, HK Time).
  • Delivery date: usually 2 to 7 working days.
  • It is unable to appoint a date of delivery.
  • Tracking number will be sent once your order has been shipped. (It may take up to 24 hours before carriers display the info.)
Shipped from
HK warehouse
Expected Shipping Date
Feb 03 - Feb 07 2026
Pricing(USD)
Quantity Unit Price Ext. Price
1 $4.40 $4.40
2500 $4.40 $10 987.50

Current price of SI4431-B1-FMR is for reference only, if you want to get best price, please submit a inquiry or direct email to our sales team sales@Vigorcomp.com

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