USB5826T-I/KD Equivalent & Substitute Parts

Part Overview

The USB5826T-I/KD is a USB Hub Controller manufactured by Microchip Technology, designed for USB 3.1 interface applications with I2C and SPI communication protocols. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design requirements and production continuity. The part is packaged in a 100-VQFN (12x12) form factor with exposed pad configuration.

Substiute Parts

USB5826T-I/KD

Microchip TechnologyIn Stock: 1046USB5826T-I/KD Datasheet

Current PartRFQ

USB5826CT-I/KD

Microchip TechnologyIn Stock: 9207USB5826CT-I/KD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The USB5826CT-I/KD qualifies as a direct substitute for the USB5826T-I/KD based on the following alignment of critical parameters:

Matching Parameters:

• Identical base product number (USB5826)
• Same manufacturer (Microchip Technology)
• Identical package type (100-VQFN 12x12 with exposed pad)
• Identical operating temperature range (-40°C ~ 85°C)
• Identical RoHS3 compliance status
• Identical MSL rating (3, 168 Hours)
• Identical REACH and ECCN classifications

Enhanced Capabilities: The USB5826CT-I/KD provides expanded interface support (I2C, SMBus, SPI, UART versus I2C, SPI) and dual USB standard support (USB 2.0 and USB 3.1 versus USB 3.1 only). The substitute maintains backward compatibility with the original part's core functionality while offering additional protocol flexibility.

Parameter Comparison

Engineering Selection Recommendations

The USB5826CT-I/KD is the designated manufacturer substitute for the obsolete USB5826T-I/KD. Selection of this alternative is supported by:

• Active product status ensuring long-term availability and supply chain continuity
• Identical physical footprint and thermal characteristics enabling direct PCB compatibility
• Full compliance with ROHS3 and REACH regulatory requirements
• Maintained MSL rating and handling requirements
• Expanded interface protocol support providing design flexibility without compromising original functionality
• Tape & Reel packaging suitable for automated assembly processes

Frequently Asked Questions (FAQ)

Q: Can the USB5826CT-I/KD be used as a direct replacement for the USB5826T-I/KD?

A: Yes. Both parts share identical package geometry (100-VQFN 12x12), pinout, operating temperature range, and supply voltage specifications. The USB5826CT-I/KD is the active equivalent with enhanced interface capabilities.

Q: What are the differences in interface protocols?

A: The USB5826T-I/KD supports I2C and SPI interfaces. The USB5826CT-I/KD adds SMBus and UART support. Designs utilizing only I2C and SPI will function identically; additional protocols are optional.

Q: Are there voltage supply differences?

A: The USB5826T-I/KD specifies 1.2V and 3.3V supplies. The USB5826CT-I/KD provides ranges of 1.08V ~ 1.32V and 3V ~ 3.6V, offering broader operational margins while maintaining compatibility with standard 1.2V and 3.3V supply rails.

Q: What is the impact of the packaging change from bulk to Tape & Reel?

A: Tape & Reel packaging is standard for automated assembly processes. If manual handling or alternative assembly methods are required, consult packaging specifications. The component itself remains identical.

Q: Are compliance certifications maintained?

A: Yes. Both parts maintain ROHS3 compliance, REACH unaffected status, and identical MSL ratings. No compliance changes occur with substitution.

Q: Why is the original part obsolete?

A: Product obsolescence is determined by the manufacturer. The USB5826CT-I/KD represents the active continuation of this product line with equivalent and enhanced functionality.