USB5926T/KD Equivalent & Substitute Parts

Part Overview

The USB5926T/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

USB5926T/KD

Microchip TechnologyIn Stock: 667USB5926T/KD Datasheet

Current PartRFQ

USB5926CT/KD

Microchip TechnologyIn Stock: 5075USB5926CT/KD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the USB5926T/KD is determined by the following critical parameters:

• Package Compatibility: Both parts must use the 100-VQFN (12x12) form factor with exposed pad to ensure PCB layout and thermal management compatibility
• Functional Equivalence: Hub controller function with USB protocol support
• Interface Support: I2C and SPI interfaces must be present to maintain system communication architecture
• USB Standards: USB 3.1 support is required for protocol compliance
• Supply Voltage Ranges: Compatible voltage supply specifications to ensure power delivery compatibility
• Operating Temperature Range: 0°C ~ 70°C operational window
• Regulatory Compliance: ROHS3 compliance and MSL rating consistency

The USB5926CT/KD qualifies as a direct substitute based on these parameters while offering enhanced interface capabilities and active product status.

Parameter Comparison

Engineering Selection Recommendations

The USB5926CT/KD is the qualified substitute for the obsolete USB5926T/KD. Selection is based on the following engineering criteria:

• Identical Package Geometry: Both components use the 100-VQFN (12x12) form factor, ensuring direct PCB compatibility without layout modifications
• Regulatory Compliance: Both parts maintain ROHS3 compliance and identical MSL ratings, satisfying environmental and reliability requirements
• Active Product Status: The USB5926CT/KD maintains active manufacturing status, ensuring long-term availability and supply chain continuity
• Backward Compatibility: The substitute part supports all required interfaces (I2C, SPI) and USB 3.1 standard, maintaining functional equivalence
• Enhanced Capabilities: The USB5926CT/KD provides additional interface options (SMBus, UART) and broader voltage supply ranges, offering design flexibility without compromising core functionality
• Same Manufacturer: Microchip Technology manufacture ensures consistent quality standards and technical support

Frequently Asked Questions (FAQ)

Q: Can the USB5926CT/KD be used as a direct replacement for the USB5926T/KD?

A: Yes. Both parts share identical package geometry (100-VQFN 12x12), operating temperature range (0°C ~ 70°C), regulatory compliance (ROHS3), and MSL rating (3). The substitute supports all required interfaces and USB standards of the original part.

Q: What are the key differences between these parts?

A: The USB5926CT/KD is an active product with enhanced interface support (SMBus, UART in addition to I2C, SPI) and broader voltage supply ranges (1.08V ~ 1.32V, 3V ~ 3.6V versus 1.2V, 3.3V). The original part is obsolete.

Q: Are there any PCB layout considerations when substituting?

A: No layout modifications are required. Both parts use identical 100-VQFN (12x12) packaging with exposed pad configuration, ensuring direct footprint compatibility.

Q: Does the substitute part support the same USB standards?

A: Yes. The USB5926CT/KD supports both USB 2.0 and USB 3.1, providing full backward and forward compatibility with USB 3.1 requirements of the original part.

Q: What is the supply voltage compatibility?

A: The USB5926CT/KD operates across 1.08V ~ 1.32V and 3V ~ 3.6V ranges, which encompass the original part's 1.2V and 3.3V specifications, ensuring power supply compatibility.

Q: Are there any thermal or reliability differences?

A: Both parts maintain identical MSL ratings (3, 168 Hours) and operating temperature ranges (0°C ~ 70°C), ensuring equivalent thermal and reliability performance.