USB5926/KD Equivalent & Substitute Parts

Part Overview

The USB5926/KD is a USB Hub Controller IC manufactured by Microchip Technology, designed for USB 3.1 interface applications with I2C and SPI communication protocols. This component operates in the 100-VQFN (12x12) package format and supports dual supply voltages of 1.2V and 3.3V. The product is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

USB5926/KD

Microchip TechnologyIn Stock: 849USB5926/KD Datasheet

Current PartRFQ

USB5926C/KD

Microchip TechnologyIn Stock: 995USB5926C/KD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the USB5926/KD is determined by the following critical parameters:

• Package compatibility: 100-VQFN (12x12) with exposed pad
• USB protocol support: USB 3.1 capability
• Interface protocols: I2C and SPI support
• Supply voltage ranges: Compatibility with 1.2V and 3.3V supplies
• Operating temperature range: 0°C ~ 70°C
• Regulatory compliance: ROHS3 and REACH status alignment

The USB5926C/KD qualifies as a direct substitute based on these parameters. While the USB5926C/KD introduces additional interface protocols (SMBus, UART) and expanded voltage specifications, it maintains full backward compatibility with the core electrical and mechanical requirements of the USB5926/KD.

Parameter Comparison

Engineering Selection Recommendations

The USB5926C/KD is the primary substitute for the obsolete USB5926/KD. Both components share identical package specifications, thermal operating ranges, and regulatory compliance certifications. The USB5926C/KD maintains active product status with Microchip Technology, ensuring continued availability and technical support.

The USB5926C/KD provides expanded interface protocol support (SMBus and UART in addition to I2C and SPI) and refined voltage supply specifications (1.08V ~ 1.32V and 3V ~ 3.6V ranges) while maintaining full compatibility with the original USB5926/KD electrical and mechanical requirements. The addition of USB 2.0 support alongside USB 3.1 capability provides enhanced flexibility for multi-protocol applications.

Frequently Asked Questions (FAQ)

Q: Can the USB5926C/KD directly replace the USB5926/KD in existing designs?

A: Yes. Both components utilize the identical 100-VQFN (12x12) package with exposed pad, operate across the same temperature range (0°C ~ 70°C), and support USB 3.1 protocol with I2C and SPI interfaces. The USB5926C/KD maintains backward compatibility with all electrical and mechanical specifications of the USB5926/KD.

Q: What are the key differences between USB5926/KD and USB5926C/KD?

A: The USB5926C/KD is an active product offering expanded interface protocols (SMBus and UART), dual USB standard support (USB 2.0 and USB 3.1), and refined voltage supply ranges. The USB5926/KD is classified as obsolete. Both share identical packaging, thermal ratings, and compliance certifications.

Q: Are there packaging differences between these components?

A: No. Both the USB5926/KD and USB5926C/KD are supplied in the 100-VQFN (12x12) package format with exposed pad. Moisture sensitivity levels are identical at MSL 3 (168 Hours).

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are ROHS3 compliant and REACH unaffected, with identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Q: What supply voltage ranges are supported?

A: The USB5926/KD operates at 1.2V and 3.3V. The USB5926C/KD supports refined ranges of 1.08V ~ 1.32V and 3V ~ 3.6V, providing broader voltage tolerance while maintaining compatibility with the original specifications.