USB7051-I/KDX Equivalent & Substitute Parts

Part Overview

The USB7051-I/KDX is a USB Hub Controller manufactured by Microchip Technology, designed for USB 3.1 interface applications with I2C control capability in a 100-VQFN package. This component is classified as Obsolete, which necessitates identification of functionally compatible alternatives for new designs and ongoing production requirements. The part maintains ROHS3 compliance and operates across the industrial temperature range of -40°C to 85°C.

Substiute Parts

USB7051-I/KDX

Microchip TechnologyIn Stock: 807USB7051-I/KDX Datasheet

Current PartRFQ

USB7050P-I/KDX

Microchip TechnologyIn Stock: 1085USB7050P-I/KDX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the USB7051-I/KDX is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must utilize the 100-VQFN (12x12) package with exposed pad configuration to ensure PCB layout compatibility and thermal performance equivalence.

Functional Capability: The substitute must provide USB Hub Controller functionality with I2C interface support to maintain system-level control architecture.

Temperature Range: Operating temperature specification of -40°C to 85°C must be maintained for industrial application requirements.

Compliance Standards: RoHS3 compliance is mandatory for regulatory alignment with the original component.

Manufacturer Continuity: Microchip Technology as the original manufacturer ensures design consistency and long-term supply chain stability.

The USB7050P-I/KDX meets these substitution criteria while offering enhanced functionality through expanded interface options (GPIO, I2S, SPI, UART) and support for USB 2.0 and USB 3.2 standards, positioning it as a direct replacement with backward compatibility.

Parameter Comparison

Engineering Selection Recommendations

The USB7050P-I/KDX is the manufacturer-recommended substitute for the obsolete USB7051-I/KDX. Both components share identical package geometry (100-VQFN 12x12), operating temperature range (-40°C to 85°C), and RoHS3 compliance status, ensuring direct PCB compatibility and regulatory alignment.

The USB7050P-I/KDX maintains Active product status with established supply chain availability, addressing the obsolescence constraint of the original part. The substitute provides expanded interface capability (GPIO, I2S, SPI, UART in addition to I2C) and broader USB standard support (USB 2.0 and USB 3.2), offering functional enhancement without requiring PCB redesign.

The substitute's Automotive grade classification and AEC-Q100 qualification provide additional reliability assurance for applications requiring automotive-level component qualification.

Frequently Asked Questions (FAQ)

Q: Can the USB7050P-I/KDX be used as a direct replacement for the USB7051-I/KDX without PCB modifications?

A: Yes. Both components utilize the 100-VQFN (12x12) package with exposed pad configuration, ensuring identical footprint and pinout compatibility. No PCB layout changes are required for physical substitution.

Q: What is the primary reason for substituting the USB7051-I/KDX?

A: The USB7051-I/KDX is classified as Obsolete. The USB7050P-I/KDX is an Active product with established supply chain availability, ensuring long-term component procurement viability.

Q: Are there differences in operating temperature specifications between the two parts?

A: No. Both components operate across the identical temperature range of -40°C to 85°C, maintaining thermal performance equivalence for industrial applications.

Q: Does the substitute provide backward compatibility with existing I2C control implementations?

A: Yes. The USB7050P-I/KDX includes I2C interface capability as part of its expanded interface set (GPIO, I2C, I2S, SPI, UART, USB), ensuring compatibility with existing control architecture.

Q: What compliance certifications apply to the substitute part?

A: The USB7050P-I/KDX is ROHS3 compliant and holds Automotive grade classification with AEC-Q100 qualification, meeting both environmental and automotive reliability standards.

Q: Are there supply voltage differences between the main part and substitute?

A: The USB7050P-I/KDX specifies supply voltage ranges of 1.08V ~ 1.32V and 3V ~ 3.6V. The original USB7051-I/KDX does not provide voltage specifications in available documentation. System design must verify voltage compatibility with the substitute's specified ranges.