EN
  • EN
  • DE
loading
Mfr. Part No. Qty. Price

No items in the cart

View Cart
Same model may have multiple batches, images only for reference.
SI4031-B1-FM Real Image
Same model may have multiple batches, images only for reference.

SI4031-B1-FM

Part No SI4031-B1-FM
Manufacturer Silicon Labs
Catalog RF Transmitters
Description RF TX IC FSK 240-930MHZ 20VFQFN
Datasheet
SI4031-B1-FM Datasheet
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Categories RF/IF and RFID
Features RF Transmitter FSK, GFSK, OOK 240MHz ~ 930MHz 13dBm 256kbps PCB, Surface Mount Antenna 20-VFQFN Exposed Pad
Manufacturer Silicon Labs
Series EZRadioPRO®
Package Tube
Part Status Not For New Designs
Operating Temperature Range -40°C ~ 85°C
Mounting Surface Mount
Package 20-VFQFN Exposed Pad
Case / Package 20-QFN (4x4)
Family Name SI4031
MSL Level 1 (Unlimited)
ECCN 5A991B
HTSUS 8542.39.0001
Quantity per package 490
Popularity High
Supply and Demand Status Balance
Win Source Part Number 894499-SI4031-B1-FM
Ultra Librarian 3D Model Ultra Librarian SI4031-B1-FM CAD Model

Description

The SI4031-B1-FM from Silicon Labs is an EZRadioPRO RF transmitter that supports FSK, GFSK, and OOK modulation types. Bold the product name (e.g., SI4031-B1-FM) and manufacturer (e.g., Silicon Labs).

  • Modulation Types: FSK, GFSK, and OOK
  • Frequency Range: 240MHz to 930MHz
  • Sensitivity: -90dBm
  • Data Rate: 256kbps
  • Output Power: 13dBm
  • Package: 20-QFN (4x4)
  • ECCN: 5A991B
  • Supply and Demand Status: balance
  • Popularity: popular
  • Applications: RF/IF and RFID

You May Also Be Interested in

CC1175RHBT Real Image
CC1175RHBT
Texas Instruments
IC RF TX FOR NARROWBAND 32QFN
Lowest to $2.1138
BH1418FV Real Image
BH1418FV
Rohm Semiconductor
FM stereo transmitter IC for audio systems
Lowest to $9.5969
ATA5757-6DQY Real Image
ATA5757-6DQY
Atmel
UHF ASK/FSK Transmitter
Need more? Email Us
ATA5756-6DQ Real Image
ATA5756-6DQ
Atmel
UHF ASK/FSK TRANSMITTER
Need more? Email Us
BH1418KN Real Image
BH1418KN
Rohm Semiconductor
FM stereo transmitter IC for audio systems
Lowest to $1.7106
TDA5103A Real Image
TDA5103A
Infineon Technologies
ASK Transmitter 345 MHz
Need more? Email Us
NXQ1TXH5/101 NXP
NXQ1TXH5/101
NXP / Nexperia
Lowest to $10.1866
ATA8403C-6AQY 66 Microchip Technology
ATA8403C-6AQY 66
Microchip Technology
IC XMITTER UHF 868-928MHZ 8TSSOP
Lowest to $2.3284
CC1150RGVT Real Image
CC1150RGVT
Texas Instruments
IC RF TX SNGL-CHIP LP 16VQFN / RF Transmitter FSK/GFSK/MSK 16-Pin VQFN EP T/R
Lowest to $0.5896

Top Sellers

PI3740-00-LGIZ real image
PI3740-00-LGIZ
Vicor Corporation
DC DC CONVERTER 10-50V / 8V – 60VIN , 10V – 50VOUT , 50 – 140W Cool-Power ZVS Buck-Boost Regulator
Lowest to $32.0752
BMI160 real image
BMI160
Bosch Sensortec
IMU ACCEL/GYRO I2C/SPI 14LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $3.6828
NTA4153NT1G real image4110
NTA4153NT1G
ON Semiconductor
MOSFET N-CH 20V 915MA SOT-416
Lowest to $0.0543
SSD1963QL9 real image6483
SSD1963QL9
Solomon
LCD Display Controller 128-Pin LQFP Tray
Lowest to $7.4300
BM04B-GHS-TBT(LF)(SN)(N) label picture
BM04B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER GH TOP 4POS 1.25MM
Lowest to $0.1782
BAS516 Real Image
BAS516
Nexperia USA Inc.
DIODE GEN PURP 100V 250MA SOD523
Lowest to $0.0214
FT230XS-U real image21586
FT230XS-U
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $6.1775
BMI088 real image23913
BMI088
Bosch Sensortec
ACCELEROMETER 16LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $11.8797
DRV8432DKD Real Image1
DRV8432DKD
Texas Instruments
IC BRIDGE DRIVER PAR 36HSSOP
Lowest to $19.3374
FT4232HL-REEL real image4451
FT4232HL-REEL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $14.2557
ICM-42605 real image24295
ICM-42605
TDK InvenSense
IMU ACCEL/GYRO/TEMP I2C/SPI LGA
Lowest to $10.2166
BME280 Real Image
BME280
Bosch Sensortec
SENSOR PRESSURE HUMIDITY TEMP
Lowest to $3.9204
LM5069MM-2/NOPB real image1604
LM5069MM-2/NOPB
Texas Instruments
IC CTRLR HOT SWAP 48V 10-MSOP
Lowest to $2.3760
TPSM63606RDLR Real Image
TPSM63606RDLR
Texas Instruments
DC DC CONVERTER 1-16V / Non-Isolated PoL Module DC DC Converter 1 Output 1 ~ 16V 6A 3V - 36V Input
Lowest to $13.4125
ULN2803ADWR real image9675
ULN2803ADWR
Texas Instruments
TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $5.2271

Pricing & Ordering

Quantity Unit Price Ext. Price
11+ $5.6306 $61.9366
25+ $4.6200 $115.5000
39+ $4.4756 $174.5484
54+ $4.3313 $233.8902
69+ $4.1869 $288.8961
93+ $3.7538 $349.1034
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
Estimate Shipping
Enter your destination to get a shipping estimate
*
Availability: 10,000 pieces
MOQ: 11 pcs
Order Increment : 1 pcs
*Need More Quantity? *Request a Bulk Quantity Quotation?
Ordering Guidelines

Shipping Information

Shipped from HK warehouse
Expected Shipping Date
Ship today if order in (HKT)
Supplier Lead-Time Call for availability
Estimate shipping fee
Enter your destination to get a shipping estimate
Estimate Shipping Fee

Contact Us

*
*
*

FRAUD PREVENTION REMINDERS

Recently, We have discovered that criminals falsely claimed to be WIN SOURCE to commit fraud. Please note that the only official website & email suffix are win-source.group, win-source.net, winsourcectl.com and winsourceelec.com

More details about fraud prevention
About Us
Customer Service
Solutions
Copyright © 2026 WIN SOURCE. All rights reserved.
For detailed contact information and office addresses in our key locations, including Irvine, Munich, Toronto, Singapore, Seoul, Bangalore, Bologna, Yamanashi, Hong Kong, and Mainland China, please visit our website.
Trust Guard Security Scanned
RFQ RFQ RFQ BOM BOM BOM API API API Sell Sell Sell your Excess