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HomeProductsRF/IF and RFIDRF TransmittersSI4021-A1-FTR
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SI4021-A1-FTR - Silicon Labs

Manufacturer Part Number
SI4021-A1-FTR
Manufacturer
Energy Micro (Silicon Labs)
Allelco Part Number
32D-SI4021-A1-FTR
ECAD Model
Parts Description
RF TX IC FSK 433/868MHZ 16TSSOP
Package
16-TSSOP (0.173', 4.40mm Width)
Data sheet
Cylindrical Battery Holders.pdf
RoHs Status
RoHS Compliant
Our certification
In stock: 8308

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Specifications

SI4021-A1-FTR Tech Specifications
Silicon Labs - SI4021-A1-FTR technical specifications, attributes, parameters and parts with similar specifications to Silicon Labs - SI4021-A1-FTR

Product Attribute Attribute Value  
Manufacturer Energy Micro (Silicon Labs)  
Voltage - Supply 2.2V ~ 5.4V  
Supplier Device Package 16-TSSOP  
Series EZRadio®  
Power - Output 8dBm  
Package / Case 16-TSSOP (0.173', 4.40mm Width)  
Package Tape & Reel (TR)  
Operating Temperature -40°C ~ 85°C  
Mounting Type Surface Mount  
Modulation or Protocol FSK, OOK  
Product Attribute Attribute Value  
Memory Size -  
Frequency 433MHz, 868MHz, 915MHz  
Features -  
Data Rate (Max) 512kbps  
Data Interface PCB, Surface Mount  
Current - Transmitting 24mA  
Base Product Number SI4021  
Applications General Purpose  
Antenna Connector PCB, Surface Mount  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status
ECCN 5A991G
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

SI4021-A1-FTR

Manufacturer

Energy Micro (Silicon Labs)

Introduction

The SI4021-A1-FTR is a highly integrated, low-power RF transmitter module designed for various wireless communication applications.

Product Features and Performance

Operates at 433MHz, 868MHz, and 915MHz frequencies

Supports FSK and OOK modulation

Data rate up to 512kbps

Transmit output power up to 8dBm

Low operating voltage of 2.2V to 5.4V

Operating temperature range of -40°C to 85°C

Product Advantages

High integration level reduces design complexity

Low power consumption suitable for battery-powered applications

Compact 16-TSSOP package for space-constrained designs

Versatile frequency and modulation options

Key Technical Parameters

Frequency: 433MHz, 868MHz, 915MHz

Modulation: FSK, OOK

Data Rate (Max): 512kbps

Transmit Output Power: 8dBm

Supply Voltage: 2.2V to 5.4V

Operating Temperature: -40°C to 85°C

Quality and Safety Features

RoHS compliant

Tape and reel packaging for automated assembly

Compatibility

Surface mount package for PCB integration

Application Areas

General wireless communication applications

IoT devices

Industrial automation

Home automation

Metering systems

Product Lifecycle

The SI4021-A1-FTR is an active product, and Energy Micro (Silicon Labs) continues to support and manufacture it.

Replacements and upgrades may be available in the future as technology advances.

Several Key Reasons to Choose This Product

Highly integrated and compact design reducing development complexity

Flexible frequency and modulation options to suit various applications

Low power consumption for battery-powered devices

Wide operating temperature range for industrial and outdoor applications

RoHS compliance and surface mount packaging for easy integration

Parts with Similar Specifications

The three parts on the right have similar specifications to Silicon Labs SI4021-A1-FTR

Product Attribute SI4021-A1-FTR SI4022-A1-FT SI4031-B1-FM SI4022-A0-FTR
Part Number SI4021-A1-FTR SI4022-A1-FT SI4031-B1-FM SI4022-A0-FTR
Manufacturer Silicon Labs Silicon Labs Silicon Labs Silicon Labs
Antenna Connector PCB, Surface Mount PCB, Surface Mount PCB, Surface Mount PCB, Surface Mount
Series EZRadio® - EZRadioPRO® -
Supplier Device Package 16-TSSOP 16-TSSOP 20-QFN (4x4) 16-TSSOP
Modulation or Protocol FSK, OOK FSK FSK, GFSK, OOK FSK
Features - - - -
Current - Transmitting 24mA 24mA 30mA 24mA
Data Rate (Max) 512kbps 115.2kbps 256kbps 115.2kbps
Package Tape & Reel (TR) Tube Tube Tape & Reel (TR)
Base Product Number SI4021 - SI4031 SI4022
Frequency 433MHz, 868MHz, 915MHz 868MHz, 915MHz 240MHz ~ 930MHz 868MHz, 915MHz
Data Interface PCB, Surface Mount PCB, Surface Mount PCB, Surface Mount PCB, Surface Mount
Power - Output 8dBm 6dBm 13dBm 6dBm
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Memory Size - - - -
Package / Case 16-TSSOP (0.173', 4.40mm Width) 16-TSSOP (0.173', 4.40mm Width) 20-VFQFN Exposed Pad 16-TSSOP (0.173', 4.40mm Width)
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Applications General Purpose ISM General Purpose ISM
Voltage - Supply 2.2V ~ 5.4V 2.2V ~ 3.8V 1.8V ~ 3.6V 2.2V ~ 3.8V

SI4021-A1-FTR Datasheet PDF

Download SI4021-A1-FTR pdf datasheets and Silicon Labs documentation for SI4021-A1-FTR - Silicon Labs.

Datasheets
Cylindrical Battery Holders.pdf
PCN Packaging
Labeling Change 14/Dec/2021.pdf Mult Dev Label Chgs 20/Oct/2021.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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SI4021-A1-FTR Image

SI4021-A1-FTR

Silicon Labs
32D-SI4021-A1-FTR

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