USB5826-I/KD Equivalent & Substitute Parts

Part Overview

The USB5826-I/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 across a dual voltage supply range (1.2V and 3.3V) and is housed in a 100-VQFN package with exposed pad. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

USB5826-I/KD

Microchip TechnologyIn Stock: 968USB5826-I/KD Datasheet

Current PartRFQ

USB5826C-I/KD

Microchip TechnologyIn Stock: 1154USB5826C-I/KD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The USB5826C-I/KD qualifies as a direct substitute for the USB5826-I/KD based on the following alignment of critical parameters:

Package Compatibility: Both components utilize the 100-VQFN (12x12) package with exposed pad, ensuring mechanical and thermal compatibility in existing PCB layouts.

Thermal Operating Range: Both parts maintain identical operating temperature specifications (-40°C ~ 85°C), supporting equivalent environmental performance requirements.

Compliance & Certification: Both components are ROHS3 compliant, REACH unaffected, and share identical ECCN and HTSUS classifications, ensuring regulatory equivalence.

Base Product Number: Both parts share the USB5826 base product number, indicating common design lineage and functional architecture.

Functional Capability: The USB5826C-I/KD supports USB 2.0 and USB 3.1 standards with expanded interface options (I2C, SMBus, SPI, UART), providing backward compatibility with the original USB 3.1 specification while offering additional protocol flexibility.

Voltage Supply Range: The USB5826C-I/KD operates within voltage ranges (1.08V ~ 1.32V, 3V ~ 3.6V) that encompass the original part's supply requirements (1.2V, 3.3V).

Parameter Comparison

Engineering Selection Recommendations

The USB5826C-I/KD is the designated substitute for the obsolete USB5826-I/KD. Selection of the USB5826C-I/KD is supported by:

Product Status: The substitute part maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete original part.

Regulatory Compliance: Both components maintain equivalent ROHS3 compliance and REACH status, satisfying environmental and regulatory requirements without modification to system certifications.

Packaging & Thermal Characteristics: Identical package specifications and thermal operating ranges eliminate the need for PCB redesign or thermal management modifications.

Functional Expansion: The USB5826C-I/KD provides extended interface support (SMBus, UART) beyond the original part's I2C and SPI capabilities, offering design flexibility for future protocol requirements while maintaining full backward compatibility.

Frequently Asked Questions (FAQ)

Q: Can the USB5826C-I/KD be used as a direct replacement for the USB5826-I/KD in existing designs?

A: Yes. Both components share identical package specifications (100-VQFN 12x12), operating temperature ranges (-40°C ~ 85°C), and compliance certifications. The substitute part's voltage supply range encompasses the original part's requirements, and all interface protocols supported by the original part are supported by the substitute.

Q: What is the primary reason for substitution?

A: The USB5826-I/KD is classified as obsolete. The USB5826C-I/KD is the active production equivalent, ensuring continued component availability and supply chain reliability.

Q: Are there differences in interface capabilities between these parts?

A: The USB5826C-I/KD supports additional interface protocols (SMBus, UART) beyond the original part's I2C and SPI interfaces. Existing designs utilizing only I2C and SPI will operate without modification. The additional protocols are optional and do not affect compatibility.

Q: Do the voltage supply specifications differ?

A: The USB5826C-I/KD operates within voltage ranges (1.08V ~ 1.32V, 3V ~ 3.6V) that fully encompass the original part's discrete supply voltages (1.2V, 3.3V). No power supply modifications are required.

Q: Are moisture sensitivity levels equivalent?

A: Yes. Both components are classified as MSL 3 (168 Hours), requiring identical handling and storage protocols.

Q: What USB standards does the substitute part support?

A: The USB5826C-I/KD supports both USB 2.0 and USB 3.1 standards. The original part supports USB 3.1. Designs requiring USB 3.1 functionality will operate without limitation.