WF121-E-V2C RF Transceiver Module Equivalent & Substitute Parts

Part Overview

The WF121-E-V2C is a Surface Mount RF transceiver module manufactured by Silicon Labs, designed for wireless communication applications. This component is classified as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity. The module features Surface Mount packaging with Module case type and maintains RoHS compliance with MSL 3 rating.

Substiute Parts

WF121-E-V2C

Silicon LabsIn Stock: 926WF121-E-V2C Datasheet

Current PartRFQ

ATWINC1510-MR210UB

Microchip TechnologyIn Stock: 2266ATWINC1510-MR210UB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The ATWINC1510-MR210UB qualifies as a substitute based on the following alignment criteria:

Functional Classification: Both components are RF transceiver modules designed for wireless communication, classified under the same ECCN code (5A992C).

Packaging & Mounting: Both utilize Surface Mount technology with Module case packaging, ensuring mechanical and thermal compatibility in equivalent PCB layouts.

Compliance & Environmental: Both maintain RoHS compliance and identical MSL 3 (168 Hours) moisture sensitivity ratings, satisfying equivalent handling and storage requirements.

Regulatory Alignment: Both share the same ECCN classification (5A992C), indicating equivalent export control status.

Parameter Comparison

Engineering Selection Recommendations

The ATWINC1510-MR210UB is suitable as a substitute for the obsolete WF121-E-V2C based on equivalent mechanical, environmental, and regulatory parameters. The substitute maintains Active product status, ensuring long-term availability and supply chain continuity. Both components satisfy identical RoHS and MSL requirements, eliminating compliance rework. The ATWINC1510-MR210UB provides documented operating specifications (3V–4.2V supply, -40°C to 85°C temperature range) that support design validation. Functional integration requires verification of firmware compatibility, serial interface protocols (I2C, SPI, UART), and antenna configuration (U.FL connector) against original application requirements.

Frequently Asked Questions (FAQ)

Q: What makes ATWINC1510-MR210UB a valid substitute for WF121-E-V2C?

A: Both components share identical Surface Mount packaging, Module case type, MSL 3 moisture sensitivity rating, RoHS compliance status, and ECCN classification (5A992C). These parameters define mechanical and regulatory compatibility for direct substitution in equivalent PCB designs.

Q: Does the substitute require PCB layout modifications?

A: Both modules use Surface Mount technology with Module packaging. Physical footprint compatibility must be verified against original design documentation. The ATWINC1510-MR210UB features U.FL antenna connector, requiring confirmation of antenna interface compatibility with the original application.

Q: Are there supply chain advantages to using the substitute?

A: The ATWINC1510-MR210UB maintains Active product status with 2200 units in stock, compared to the obsolete WF121-E-V2C. This ensures sustained availability and eliminates end-of-life supply constraints.

Q: What parameters require application-level verification?

A: Serial interface protocols (I2C, SPI, UART), firmware version compatibility, RF performance specifications (frequency, data rate, power output, sensitivity), and antenna configuration must be validated against original design requirements and functional specifications.

Q: Are both components subject to identical export controls?

A: Yes. Both components share ECCN classification 5A992C, indicating equivalent export control status and regulatory treatment.