WT11U-E-AI56C RF Transceiver Module Equivalent & Substitute Parts

Part Overview

The WT11U-E-AI56C is a Surface Mount RF Transceiver Module manufactured by Silicon Labs, designed for wireless communication applications. This module features integrated RF transmission and reception capabilities in a compact SMD package format. The product is currently classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and component procurement planning.

Substiute Parts

WT11U-E-AI56C

Silicon LabsIn Stock: 1053WT11U-E-AI56C Datasheet

Current PartRFQ

BT122-A-V2

Silicon LabsIn Stock: 1065BT122-A-V2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The BT122-A-V2 is identified as a manufacturer-recommended substitute for the WT11U-E-AI56C. Substitution eligibility is determined by the following critical parameters:

• Manufacturer Consistency: Both parts are manufactured by Silicon Labs, ensuring design continuity and support infrastructure alignment
• Mounting Type: Both utilize Surface Mount technology, maintaining PCB assembly compatibility
• Package Classification: Both are classified as Module packages, preserving form factor and footprint characteristics
• Regulatory Compliance: Both maintain RoHS compliance status and identical MSL ratings (3, 168 Hours), ensuring environmental and handling requirements are met
• Export Classification: Both share identical ECCN (5A992C) and HTSUS (8517.62.0090) codes, confirming regulatory equivalence
• Product Status Transition: The BT122-A-V2 maintains Active product status, providing long-term availability and ongoing manufacturer support

Parameter Comparison

Engineering Selection Recommendations

The BT122-A-V2 is the manufacturer-recommended substitute for the obsolete WT11U-E-AI56C. Selection of this alternative is supported by:

• Regulatory Alignment: Both parts maintain identical export classification codes (ECCN 5A992C, HTSUS 8517.62.0090), ensuring no changes to supply chain documentation or compliance procedures
• Compliance Enhancement: The BT122-A-V2 achieves ROHS3 compliance, representing an advancement over the RoHS Compliant status of the original part
• Manufacturer Support: As an Active product from Silicon Labs, the BT122-A-V2 benefits from ongoing technical support, documentation updates, and extended availability windows
• Handling Requirements: Identical MSL ratings (3, 168 Hours) ensure no changes to storage, handling, or reflow procedures
• Assembly Compatibility: Both parts utilize Surface Mount technology and Module packaging, maintaining existing PCB assembly processes and equipment compatibility

Frequently Asked Questions (FAQ)

Q: Why is the WT11U-E-AI56C classified as Obsolete? A: The WT11U-E-AI56C has reached end-of-life status. The BT122-A-V2 is the manufacturer-designated replacement, offering continued functionality with Active product status and ongoing support.

Q: Are the WT11U-E-AI56C and BT122-A-V2 pin-compatible? A: Both parts are Module packages with Surface Mount technology. Specific pinout compatibility must be verified against detailed datasheets and PCB layout requirements for your application.

Q: What are the key differences between these parts? A: The BT122-A-V2 provides specified electrical parameters including supply voltage (2.2V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and integrated serial interfaces (ADC, GPIO, I2C, UART). The original WT11U-E-AI56C specifications for these parameters are not provided in available documentation.

Q: Do both parts have the same moisture sensitivity requirements? A: Yes. Both the WT11U-E-AI56C and BT122-A-V2 maintain MSL 3 rating with 168-hour floor life, requiring identical storage and handling procedures.

Q: Are there any regulatory or compliance differences? A: Both parts share identical ECCN and HTSUS classifications. The BT122-A-V2 achieves ROHS3 compliance, representing an improvement over the RoHS Compliant status of the original part.

Q: What is the current inventory status? A: The WT11U-E-AI56C has 1005 pieces available as new original stock. The BT122-A-V2 has 963 pieces available as new original stock.