WT41U-E-AI5 Equivalent & Substitute Parts

Part Overview

The WT41U-E-AI5 is an RF transceiver module manufactured by Silicon Labs, designed for Bluetooth 2.1 + EDR applications. This module is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The module features a transceiver architecture suitable for wireless communication applications requiring Bluetooth connectivity.

Substiute Parts

WT41U-E-AI5

Silicon LabsIn Stock: 1102WT41U-E-AI5 Datasheet

Current PartRFQ

BT122-A-V2R

Silicon LabsIn Stock: 998BT122-A-V2R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The BT122-A-V2R qualifies as a substitute for the WT41U-E-AI5 based on the following substitution criteria:

• Manufacturer Alignment: Both parts are manufactured by Silicon Labs, ensuring design continuity and support consistency
• Product Category: Both are RF transceiver modules designed for Bluetooth wireless communication
• Compliance & Certification: Both parts share identical ECCN (5A992C) and HTSUS (8517.62.0090) classifications, confirming regulatory equivalence
• Moisture Sensitivity: Both parts maintain MSL 3 (168 Hours) rating, ensuring identical handling and storage requirements
• Mounting Technology: The BT122-A-V2R uses Surface Mount technology, providing modern manufacturing compatibility
• Active Product Status: The BT122-A-V2R is actively produced, ensuring long-term availability and supply chain stability

Parameter Comparison

Engineering Selection Recommendations

The BT122-A-V2R is the designated substitute for the obsolete WT41U-E-AI5. Selection of this substitute is supported by:

• Regulatory Compliance: Identical ECCN and HTSUS classifications confirm regulatory equivalence for export and trade purposes
• Active Production Status: The BT122-A-V2R maintains active product status with verified inventory availability, ensuring supply chain continuity
• Environmental Compliance: RoHS compliance of the BT122-A-V2R meets modern environmental standards
• Handling Requirements: Matching MSL 3 rating ensures no changes to component handling, storage, or assembly procedures
• Manufacturer Support: Both parts originate from Silicon Labs, maintaining consistent technical support and documentation standards

Frequently Asked Questions (FAQ)

Q: Why is the WT41U-E-AI5 being replaced? A: The WT41U-E-AI5 is classified as obsolete. The BT122-A-V2R is the active substitute manufactured by the same vendor, ensuring continued availability and support.

Q: Are the MSL ratings identical between these parts? A: Yes. Both the WT41U-E-AI5 and BT122-A-V2R maintain MSL 3 (168 Hours) ratings, requiring identical moisture control and handling procedures during assembly.

Q: Do these parts share the same regulatory classifications? A: Yes. Both parts carry identical ECCN (5A992C) and HTSUS (8517.62.0090) codes, confirming regulatory equivalence for compliance and trade purposes.

Q: What is the primary difference in mounting technology? A: The BT122-A-V2R uses Surface Mount technology in a 20-SMD Module package, providing compatibility with modern PCB assembly processes.

Q: Is the BT122-A-V2R RoHS compliant? A: Yes. The BT122-A-V2R is RoHS compliant, meeting current environmental and material restriction standards.

Q: Can I use the BT122-A-V2R as a direct replacement in existing designs? A: The BT122-A-V2R qualifies as a substitute based on regulatory compliance, manufacturer alignment, and product category equivalence. Design integration requirements depend on specific application parameters and PCB layout considerations.