WT11U-A-HCI21001

Description：RF TXRX MOD BLUETOOTH CHIP SMD
Series：-
Mfr：Silicon Labs
Package：Tape & Reel (TR)

SKU:b8eeb57e2fe8 Category: RF Transceiver Modules and Modems Brand: Silicon Labs

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

WT11U-A-HCI21001 is listed in the RF Transceiver Modules And Modems range at ChipApex. The manufacturer field lists Silicon Labs. Its product description is RF TXRX MOD BLUETOOTH CHIP SMD. Review the specifications below when checking this part for your BOM.

RF Transceiver Modules And Modems specifications for WT11U-A-HCI21001

Description：RF TXRX MOD BLUETOOTH CHIP SMD
Series：-
Mfr：Silicon Labs
Package：Tape & Reel (TR)
RF Family/Standard：Bluetooth
Protocol：Bluetooth v2.1 +EDR
Modulation：-
Frequency：2.4GHz
Data Rate：-
Power - Output：17dBm
Sensitivity：-84dBm
Serial Interfaces：UART, USB
Antenna Type：Integrated, Chip
Utilized IC / Part：-
Memory Size：-
Voltage - Supply：2.7V ~ 3.6V
Current - Receiving：36mA
Current - Transmitting：110mA
Mounting Type：Surface Mount
Operating Temperature：-40°C ~ 85°C
Package / Case：Module

RF Transceiver Modules And Modems datasheet and documents for WT11U-A-HCI21001

WT11U-A-HCI21001

RF Transceiver Modules And Modems Overview

The WT11U-A-HCI21001C is a Bluetooth 2.1+EDR module from Silicon Labs, designed for Class 1 connectivity with an integrated chip antenna. It features iWRAP 5.0 firmware and supports multiple interfaces including GPIO, PCM, SPI, UART, and USB. The module operates on a 3.2 V to 3.4 V supply, delivers 16.5 dBm TX power, and achieves -84 dBm receiver sensitivity. Dimensions are 35.75 mm x 14.5 mm x 2.6 mm.

RF Transceiver Modules And Modems Feature Summary

Supports Bluetooth 2.1+EDR protocol with Class 1 range capabilities
Integrates iWRAP 5.0 firmware for simplified host interface control
Provides versatile connectivity via GPIO, PCM, SPI, UART, and USB interfaces
Includes 802.11 co-existence interface and six software programmable I/O pins

RF Transceiver Modules And Modems Applications

Wireless data transmission in industrial equipment
Bluetooth peripheral integration for consumer electronics
Embedded systems requiring serial port emulation over wireless links

RF Transceiver Modules And Modems Procurement Notes

This component is officially discontinued and no longer manufactured by Silicon Labs. Verification of availability should focus on finding authorized surplus stock or secondary market sources. Ensure that any replacement units are genuine parts from the original production run, as counterfeit modules may lack specified performance characteristics. Confirm the specific suffix 'C' matches the required pinout and firmware version before procurement.

RF Transceiver Modules And Modems Selection Notes

Engineers should evaluate this module only if legacy Bluetooth 2.1 compatibility is strictly required. For new designs, consider modern alternatives supporting Bluetooth 4.0 or later versions for improved power efficiency and security. Verify that the host system can support the iWRAP command set and that the physical dimensions fit the enclosure constraints. Check interface compatibility with available microcontroller peripherals.

RF Transceiver Modules And Modems Part Context

The WT11U series represents Silicon Labs' earlier generation of Bluetooth modules utilizing the WSTK architecture. This specific model integrates the radio, baseband processor, and iWRAP stack into a single surface-mount package. It was widely used in applications needing reliable short-range wireless communication before the widespread adoption of Bluetooth Low Energy standards.