USB7051T/KDX Equivalent & Substitute Parts

Part Overview

The USB7051T/KDX is a USB Hub Controller manufactured by Microchip Technology, designed for USB 3.1 interface applications with I2C communication protocol. This component is packaged in a 100-VQFN (12x12) format with exposed pad and operates across a temperature range of 0°C to 70°C. The product is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

USB7051T/KDX

Microchip TechnologyIn Stock: 1325USB7051T/KDX Datasheet

Current PartRFQ

USB7050PT/KDX

Microchip TechnologyIn Stock: 953USB7050PT/KDX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the USB7051T/KDX is determined by the following critical parameters:

Package Compatibility: The substitute part must utilize the identical 100-VQFN (12x12) package with exposed pad to ensure PCB layout and thermal management compatibility.

Functional Classification: The component must operate as a USB Hub Controller with I2C interface capability to maintain system-level communication protocols.

Electrical Standards: The substitute must support USB protocol standards and operate within the specified temperature range of 0°C to 70°C.

Compliance Requirements: Both RoHS3 compliance and MSL 3 (168 Hours) moisture sensitivity classification must be maintained.

Product Status: Active or qualified product status is required to ensure ongoing availability and manufacturer support.

The USB7050PT/KDX meets all substitution criteria as a Microchip Technology hub controller in the same package format with extended interface capabilities and active product status.

Parameter Comparison

Engineering Selection Recommendations

The USB7050PT/KDX is qualified as a direct substitute for the obsolete USB7051T/KDX based on the following factors:

Package Equivalence: Both components utilize the 100-VQFN (12x12) package format with exposed pad, ensuring mechanical and thermal compatibility with existing PCB designs.

Compliance Alignment: The substitute part maintains ROHS3 compliance and MSL 3 (168 Hours) classification, meeting the same environmental and regulatory requirements as the original component.

Product Status: The USB7050PT/KDX holds active product status with automotive-grade qualification (AEC-Q100), providing long-term availability and manufacturer support compared to the obsolete original part.

Interface Capability: The substitute provides I2C interface functionality required by the original design, with additional interface options (GPIO, I2S, SPI, UART, USB) that do not conflict with existing system architecture.

Electrical Specifications: Both components operate within the 0°C to 70°C temperature range, maintaining thermal performance requirements for the application.

Frequently Asked Questions (FAQ)

Q: Can the USB7050PT/KDX directly replace the USB7051T/KDX without PCB modifications?

A: Yes. Both components share identical package specifications (100-VQFN 12x12 with exposed pad), pin count, and thermal characteristics, allowing direct substitution on existing PCB layouts.

Q: What is the primary reason for substitution?

A: The USB7051T/KDX is classified as obsolete. The USB7050PT/KDX provides equivalent functionality with active product status and ongoing manufacturer support.

Q: Are there differences in USB standard support?

A: The original part supports USB 3.1, while the substitute supports USB 2.0 and USB 3.2. Both standards are backward compatible and forward compatible within their respective protocol families.

Q: Does the substitute part require firmware or software changes?

A: The substitute maintains I2C interface compatibility with the original design. Additional interfaces (GPIO, I2S, SPI, UART) are available but not required for operation.

Q: Are compliance certifications equivalent?

A: Both parts are ROHS3 compliant with MSL 3 (168 Hours) classification. The substitute includes automotive-grade qualification (AEC-Q100), providing additional quality assurance.

Q: What is the packaging difference between the main part and substitute?

A: The main part is supplied in Cut Tape (CT) & Digi-Reel format, while the substitute is supplied in Tape & Reel (TR) format. Both are compatible with standard component handling and assembly processes.