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WT41U-E-AI55C is listed in the RF Transceiver Modules And Modems range at ChipApex. The manufacturer field lists Silicon Labs. Its product description is RF TXRX MODULE SMD. Review the specifications below when checking this part for your BOM.
The WT41U-E-AI55C is a Bluetooth 2.1+EDR RF transceiver module manufactured by Silicon Labs, designed for surface-mount applications. It operates at the 2.4GHz ISM band and supports Class 1+ transmission with an output power of 17dBm. The module features a receiver sensitivity of -94dBm and offers serial interfaces including UART and USB. It requires a 3.3V supply voltage and includes an external U.FL antenna connector. The device is rated for operation within a temperature range of -40°C to +85°C.
Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance and MSL level 3 handling requirements during storage and assembly. Check for available replacement parts such as BT122-A-V2R if current stock is unavailable. Ensure compatibility with existing firmware versions before integration into new designs.
Select this module when long-range Bluetooth connectivity is required in a compact SMD form factor. Consider the need for an external U.FL antenna versus integrated solutions. Evaluate interface requirements for UART or USB based on host controller capabilities. Assess thermal management needs given the operating temperature range and current consumption profiles during transmission and reception phases.
This component belongs to the Silicon Labs WT41u series of Bluetooth modules. It is part of a family offering various configurations for different antenna types and software stacks. The WT41U-E-AI55C specifically targets applications needing robust Class 1+ performance with standard Bluetooth 2.1+EDR support.
The BT122-A-V2R is listed as a manufacturer-recommended substitute. Verify pinout compatibility and firmware differences before substitution.
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