VSC8538XHJ Equivalent & Substitute Parts

Part Overview

The VSC8538XHJ is a Gigabit Ethernet transceiver IC manufactured by Microchip Technology, housed in a 444-HSBGA package with exposed pad. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The part operates across multiple supply voltages (1.8V, 2.5V, 3.3V) and is ROHS3 compliant with MSL 4 moisture sensitivity rating.

Substiute Parts

VSC8538XHJ

Microchip TechnologyIn Stock: 4623VSC8538XHJ Datasheet

Current PartRFQ

VSC8658XHJ

Microchip TechnologyIn Stock: 1828VSC8658XHJ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VSC8538XHJ is determined by the following critical parameters:

• Package Compatibility: 444-BGA Exposed Pad form factor with matching ball grid array dimensions
• Manufacturer Continuity: Microchip Technology as primary manufacturer
• Interface Protocol: Gigabit Ethernet transceiver functionality
• Circuit Configuration: 1/1 driver/receiver topology
• Compliance Standards: ROHS3 compliance and equivalent MSL rating
• Supply Voltage Range: Support for 1.8V, 2.5V, and/or 3.3V operation

The VSC8658XHJ meets these substitution criteria as an active product offering from Microchip Technology with identical package specifications and equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The VSC8658XHJ is the designated substitute for the obsolete VSC8538XHJ based on the following engineering criteria:

• Active Product Status: The VSC8658XHJ maintains active production status with Microchip Technology, ensuring long-term availability and supply chain continuity.
• Identical Package Specification: Both parts utilize the 444-BGA Exposed Pad package with matching 27x27mm dimensions, enabling direct PCB layout compatibility without redesign.
• Equivalent Compliance: Both parts maintain ROHS3 compliance and identical MSL 4 moisture sensitivity ratings, satisfying regulatory and manufacturing process requirements.
• Manufacturer Support: Continued support from Microchip Technology ensures access to technical documentation, application notes, and design resources.

Frequently Asked Questions (FAQ)

Q: Can the VSC8658XHJ be used as a direct replacement for the VSC8538XHJ?

A: Yes. Both parts share identical package specifications (444-BGA Exposed Pad, 27x27mm), equivalent compliance certifications (ROHS3, MSL 4), and are manufactured by Microchip Technology. PCB layout and assembly processes require no modification.

Q: What is the primary reason for substitution?

A: The VSC8538XHJ is classified as obsolete. The VSC8658XHJ is the active equivalent offering from Microchip Technology, ensuring continued availability and manufacturing support.

Q: Are there differences in supply voltage specifications?

A: The VSC8538XHJ explicitly supports 1.8V, 2.5V, and 3.3V operation. Supply voltage specifications for the VSC8658XHJ are not provided in the available technical parameters. Verification against the VSC8658XHJ datasheet is required to confirm voltage compatibility with your specific application.

Q: Do both parts have the same moisture sensitivity requirements?

A: Yes. Both the VSC8538XHJ and VSC8658XHJ are rated MSL 4 (72 Hours), requiring identical handling, storage, and reflow procedures during manufacturing.

Q: What are the ECCN classifications for export control purposes?

A: VSC8538XHJ is classified as ECCN 5A991B. VSC8658XHJ is classified as ECCN 5A991B1. Verify current export control requirements with your compliance department before procurement.