About us Contact Us Submit BOM
RFQs(0)
English
Close Menu
View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsRF/IF and RFIDRF Transceiver Modules and ModemsWT21-A-HCI
WT21-A-HCI Image
WT21-A-HCI Image - 1
Image may be representation.
See specifications for product details.
Share
 Favorite

WT21-A-HCI - Silicon Labs

Manufacturer Part Number
WT21-A-HCI
Manufacturer
Energy Micro (Silicon Labs)
Allelco Part Number
32D-WT21-A-HCI
ECAD Model
Parts Description
RF TXRX MOD BLUETOOTH CHIP SMD
Detailed Description
Package
Module
Data sheet
WT21 Datasheet.pdf
Compare
In stock: 4870

Required fields are indicated by an asterisk (*)
Please send RFQ, we will respond immediately.

Quantity

Specifications

WT21-A-HCI Tech Specifications
Silicon Labs - WT21-A-HCI technical specifications, attributes, parameters and parts with similar specifications to Silicon Labs - WT21-A-HCI

Product Attribute Attribute Value  
Manufacturer Energy Micro (Silicon Labs)  
Voltage - Supply 1.8V ~ 3.6V  
Utilized IC / Part -  
Series -  
Serial Interfaces PIO, SDIO, SPI, UART  
Sensitivity -87dBm  
RF Family/Standard Bluetooth  
Protocol Bluetooth v2.1 +EDR  
Power - Output 6dBm  
Package / Case Module  
Product Attribute Attribute Value  
Package Strip  
Operating Temperature -40°C ~ 85°C  
Mounting Type Surface Mount  
Modulation -  
Memory Size -  
Frequency 2.4GHz  
Data Rate 3Mbps  
Current - Transmitting -  
Current - Receiving -  
Antenna Type Integrated, Chip  

Parts Introduction

Manufacturer Part Number

WT21-A-HCI

Manufacturer

Energy Micro (Silicon Labs)

Introduction

RF transceiver module with Bluetooth v2.1 + EDR support

Product Features and Performance

4GHz operating frequency

-40°C to 85°C operating temperature range

8V to 3.6V supply voltage

6dBm output power

-87dBm sensitivity

Integrated chip antenna

3Mbps data rate

Supports PIO, SDIO, SPI, and UART interfaces

Product Advantages

Small form factor surface mount module

Low power consumption

Integrated antenna for simplified design

Key Technical Parameters

Frequency: 2.4GHz

Operating Temperature: -40°C to 85°C

Supply Voltage: 1.8V to 3.6V

Output Power: 6dBm

Antenna Type: Integrated Chip

Sensitivity: -87dBm

Data Rate: 3Mbps

Interfaces: PIO, SDIO, SPI, UART

Quality and Safety Features

RoHS compliant

Suitable for industrial and commercial applications

Compatibility

Bluetooth v2.1 + EDR compatible

Application Areas

Wireless communication

Industrial control systems

Consumer electronics

Product Lifecycle

Currently in production

Replacement or upgrade parts available

Key Reasons to Choose This Product

Small size and low power for space-constrained designs

Integrated antenna simplifies circuit design

Wide operating temperature range for harsh environments

Robust Bluetooth v2.1 + EDR support

Multiple interface options for easy integration

Parts with Similar Specifications

The three parts on the right have similar specifications to Silicon Labs WT21-A-HCI

Product Attribute WT21-A-HCI ESP32-PICO-V3-02 XB24CZ7UISB003 ZM4102AH-CME3R
Part Number WT21-A-HCI ESP32-PICO-V3-02 XB24CZ7UISB003 ZM4102AH-CME3R
Manufacturer Silicon Labs Espressif Systems Digi Sigma Designs
Sensitivity -87dBm -97dBm -102dBm -99dBm
Package / Case Module 48-LFQFN Exposed Pad Module Module
Memory Size - 8MB Flash, 2MB SRAM 32kB Flash, 2kB RAM 64B Flash, 64kB ROM, 16kB RAM
Protocol Bluetooth v2.1 +EDR 802.11b/g/n, Bluetooth v4.2 Zigbee® Z-Wave®
Utilized IC / Part - ESP32 EM357 -
Frequency 2.4GHz 2.4GHz 2.4GHz 921MHz
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -30°C ~ 85°C
RF Family/Standard Bluetooth Bluetooth, WiFi 802.15.4 General ISM < 1GHz
Voltage - Supply 1.8V ~ 3.6V 3V ~ 3.6V 2.1V ~ 3.6V 2.1 V ~ 3.6 V
Current - Receiving - 111mA ~ 117mA 28mA ~ 45mA 29mA
Data Rate 3Mbps 150Mbps 1Mbps 100Kbps
Series - ESP32 XBee® ZigBee® Z-Wave®
Modulation - - DSSS -
Antenna Type Integrated, Chip Antenna Not Included, I-PEX Antenna Not Included, U.FL -
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Serial Interfaces PIO, SDIO, SPI, UART ADC, GPIO, I²C, I²S, SDIO, SPI, PWM, UART SPI, UART -
Current - Transmitting - 205mA ~ 385mA 33mA ~ 59mA 34mA
Power - Output 6dBm 19.5dBm 8dBm -
Package Strip Tape & Reel (TR) Tray -

WT21-A-HCI Datasheet PDF

Download WT21-A-HCI pdf datasheets and Silicon Labs documentation for WT21-A-HCI - Silicon Labs.

Datasheets
WT21 Datasheet.pdf

Customers Also Interested in

Recommended Products

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

View More
WT21-A-HCI Image

WT21-A-HCI

Silicon Labs
32D-WT21-A-HCI

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

Allelco
About Us
History
Certifications
Recruitment
Policies
Terms & Conditions
Privacy Policy
Cookie Policy
Services
Order Tracking
Return & Replacement
Frequently Asked Questions
Contact Us
Order
Shipping & Delivering
Payment Methods
My Account
The BlogsHot PartsChange LanguageNewsSite map
Contact Us
Headquarters Address:
Room C 13/F Harvard Commercial Building
105-111 Thomson Road Wan Chai
HongKong
Service Tel: +852-91464856
Service Email: info@allelco.com
Follow us
Copyright © 2012-2023 AllelcoElec.com. All rights reserved.
0 RFQ
Shopping cart (0 Items)
It is empty.
Submit RFQ
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB