PI3PCIE3442ZHEX PCI Express Switch IC Equivalent & Substitute Parts

Part Overview

The PI3PCIE3442ZHEX is a PCI Express Switch IC featuring 8 channels in a 42-TQFN (9x4.6) package, manufactured by Diodes Incorporated. This component operates as a 1:1 multiplexer/demultiplexer circuit with bi-directional capability and a -3dB bandwidth of 6.5GHz, designed for PCI Express applications requiring signal switching and routing functionality.

The PI3PCIE3442ZHEX carries an Obsolete product status. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this interface component.

Substiute Parts

PI3PCIE3442ZHEX

Diodes IncorporatedIn Stock: 38376PI3PCIE3442ZHEX Datasheet

Current PartRFQ

PI3PCIE3442AZHEX

Diodes IncorporatedIn Stock: 1891PI3PCIE3442AZHEX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PI3PCIE3442ZHEX is determined by strict alignment across the following critical parameters:

Electrical Compatibility:

• PCI Express (PCIe) series classification
• 8-channel configuration with 1:1 multiplexer/demultiplexer circuit topology
• Bi-directional signal routing capability
• 6.5GHz -3dB bandwidth performance
• 3V ~ 3.6V single supply voltage range
• Operating temperature range: -40°C ~ 85°C

Mechanical & Packaging Compatibility:

• 42-VFQFN Exposed Pad package type
• 42-TQFN (9x4.6) supplier device package dimensions
• Surface mount mounting type

Regulatory & Compliance Alignment:

• ROHS3 Compliant status
• REACH Unaffected classification
• EAR99 ECCN designation
• Moisture Sensitivity Level 1 (Unlimited)

The PI3PCIE3442AZHEX meets all substitution criteria across electrical, mechanical, and regulatory parameters, establishing it as a direct equivalent for the obsolete PI3PCIE3442ZHEX.

Parameter Comparison

Engineering Selection Recommendations

The PI3PCIE3442AZHEX is the direct substitute for the obsolete PI3PCIE3442ZHEX. Selection of the PI3PCIE3442AZHEX is supported by the following factors:

Product Status Alignment: The PI3PCIE3442AZHEX maintains Active product status, ensuring ongoing manufacturer support, availability, and compliance with current regulatory requirements. This contrasts with the Obsolete status of the original part, which presents supply chain risk.

Regulatory Compliance: Both parts maintain identical ROHS3 Compliant, REACH Unaffected, and EAR99 designations, confirming equivalent environmental and export compliance profiles.

Electrical & Mechanical Equivalence: Complete parameter alignment across all specified electrical characteristics (voltage supply, bandwidth, channel configuration, circuit topology) and mechanical specifications (package type, dimensions, mounting method) establishes functional interchangeability.

Supply Chain Continuity: The PI3PCIE3442AZHEX is available in Tape & Reel (TR) packaging with documented inventory, providing reliable sourcing for production and maintenance applications.

Frequently Asked Questions (FAQ)

Q: Can the PI3PCIE3442AZHEX be used as a direct replacement for the PI3PCIE3442ZHEX without circuit modification?

A: Yes. The PI3PCIE3442AZHEX is electrically and mechanically equivalent across all specified parameters. No circuit modifications are required for substitution. Both parts share identical package dimensions (42-TQFN 9x4.6), pinout configuration, voltage supply requirements (3V ~ 3.6V), and functional specifications (8-channel 1:1 multiplexer/demultiplexer with bi-directional capability).

Q: What is the difference between the PI3PCIE3442ZHEX and PI3PCIE3442AZHEX part numbers?

A: The primary difference is product status. The PI3PCIE3442ZHEX is Obsolete, while the PI3PCIE3442AZHEX is Active. The "A" designation in the PI3PCIE3442AZHEX indicates an active production variant. Both parts are manufactured by Diodes Incorporated and share identical electrical and mechanical specifications.

Q: Are there packaging differences between these parts?

A: The PI3PCIE3442AZHEX is supplied in Tape & Reel (TR) packaging, which is standard for high-volume production and automated assembly. The original PI3PCIE3442ZHEX packaging type was not specified in available documentation. Both parts use the same 42-TQFN (9x4.6) supplier device package format.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the PI3PCIE3442ZHEX and PI3PCIE3442AZHEX are ROHS3 Compliant, REACH Unaffected, classified as EAR99 for export control, and carry Moisture Sensitivity Level 1 (Unlimited). They share identical HTSUS code 8542.39.0001.

Q: What is the -3dB bandwidth specification, and why is it important for substitution?

A: The -3dB bandwidth of 6.5GHz defines the frequency range at which the PCI Express switch IC maintains signal integrity for PCIe data transmission. This specification is critical for substitution because it directly impacts the maximum data rate and signal quality the component can support. Both parts maintain identical 6.5GHz bandwidth, confirming functional equivalence for PCIe applications.

Q: Is the PI3PCIE3442AZHEX suitable for new designs, or only for replacement applications?

A: The PI3PCIE3442AZHEX is suitable for both new designs and replacement applications. Its Active product status ensures ongoing manufacturer support, availability, and compliance with current standards, making it appropriate for both legacy system maintenance and new product development.