USB5806T/KD Equivalent & Substitute Parts

Part Overview

The USB5806T/KD is a USB Hub Controller designed for USB 3.1 applications with I2C and SPI interface capabilities in a 100-VQFN package. This part is currently classified as obsolete, which necessitates identification of active equivalent components to maintain design continuity and ensure long-term supply chain reliability. The substitute part maintains functional and electrical compatibility while offering active product status and improved availability.

Substiute Parts

USB5806T/KD

Microchip TechnologyIn Stock: 1867USB5806T/KD Datasheet

Current PartRFQ

USB5806CT/KD

Microchip TechnologyIn Stock: 5566USB5806CT/KD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The USB5806CT/KD qualifies as a direct substitute for the USB5806T/KD based on the following substitution criteria:

Identical Parameters:

• Manufacturer: Microchip Technology
• Base Product Number: USB5806
• Protocol: USB
• Function: Hub Controller
• Interface: I2C, SPI
• Standards: USB 3.1
• Package / Case: 100-VFQFN Exposed Pad
• Supplier Device Package: 100-VQFN (12x12)
• Operating Temperature Range: 0°C ~ 70°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 3 (168 Hours)

Electrical Compatibility: Both parts operate within compatible voltage supply ranges and maintain the same functional interface specifications. The USB5806CT/KD represents the active production variant of the USB5806 controller family.

Parameter Comparison

Engineering Selection Recommendations

The USB5806CT/KD is the appropriate selection for new designs and production continuity. As the active variant within the USB5806 controller family, it maintains identical functional specifications, package geometry, and interface protocols while offering superior supply chain availability. Both parts meet ROHS3 compliance and REACH requirements, ensuring regulatory alignment. The voltage supply range of the USB5806CT/KD (1.08V ~ 1.32V, 3V ~ 3.6V) encompasses the nominal operating points specified for the obsolete USB5806T/KD, confirming electrical compatibility in standard application circuits.

Frequently Asked Questions (FAQ)

Q: Can the USB5806CT/KD directly replace the USB5806T/KD in existing designs?

A: Yes. Both parts share identical package geometry (100-VQFN 12x12), interface protocols (I2C, SPI), and USB 3.1 standards. The electrical specifications are compatible within standard operating conditions (0°C ~ 70°C).

Q: What is the primary reason for substitution?

A: The USB5806T/KD is classified as obsolete. The USB5806CT/KD is the active production equivalent, ensuring long-term availability and supply chain continuity.

Q: Are there any compliance differences between the two parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 3, 168 Hours).

Q: Do the voltage supply specifications differ?

A: The USB5806CT/KD specifies a voltage range (1.08V ~ 1.32V, 3V ~ 3.6V) while the USB5806T/KD lists nominal values (1.2V, 3.3V). The ranges are compatible with standard application requirements.

Q: Is PCB layout modification required for substitution?

A: No. Both parts use the identical 100-VQFN (12x12) package with exposed pad, requiring no changes to footprint or layout.