PI3USB14LEX Equivalent & Substitute Parts

Part Overview

The PI3USB14LEX is a dual-channel USB switch IC manufactured by Diodes Incorporated, designed for USB 2.0 applications requiring 4:1 multiplexer/demultiplexer functionality. This component operates at 3.3V supply voltage with a maximum on-state resistance of 8Ohm and supports bandwidth up to 815MHz. The PI3USB14LEX is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production requirements.

Substiute Parts

PI3USB14LEX

Diodes IncorporatedIn Stock: 33162PI3USB14LEX Datasheet

Current PartRFQ

PI3USB14-ALEX

Diodes IncorporatedIn Stock: 10294PI3USB14-ALEX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PI3USB14LEX is determined by strict equivalence across the following critical parameters:

• Multiplexer/Demultiplexer Circuit Configuration: 4:1 topology
• Number of Channels: 2 channels
• On-State Resistance (Max): 8Ohm
• Supply Voltage: 3.3V single supply
• Bandwidth Performance: 815MHz -3dB bandwidth
• USB Specification Compliance: USB 2.0
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Package Type: 16-TSSOP surface mount
• Electrical and Mechanical Compatibility: Identical pin configuration and footprint

The PI3USB14-ALEX qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications. The primary distinction is product status: PI3USB14-ALEX is active production, whereas PI3USB14LEX is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The PI3USB14-ALEX is the direct equivalent for PI3USB14LEX replacement. Both components share identical electrical specifications, thermal operating range, and mechanical package dimensions. The PI3USB14-ALEX maintains active production status with ROHS3 compliance and MSL Level 1 rating, ensuring long-term availability and regulatory alignment.

For new designs and production transitions from the obsolete PI3USB14LEX, the PI3USB14-ALEX provides pin-for-pin compatibility with no circuit redesign required. The component is supplied in Tape & Reel packaging, standard for high-volume manufacturing operations.

Frequently Asked Questions (FAQ)

Q: Can PI3USB14-ALEX directly replace PI3USB14LEX without circuit modification?

A: Yes. Both components are electrically and mechanically identical across all specified parameters, including pin configuration, package footprint, supply voltage, bandwidth, and on-state resistance. No circuit redesign is necessary.

Q: What is the primary reason for substitution?

A: The PI3USB14LEX is classified as obsolete. The PI3USB14-ALEX is the active production equivalent from the same manufacturer, ensuring continued availability and supply chain stability.

Q: Are there packaging differences between these parts?

A: The PI3USB14LEX packaging is not specified in the component data. The PI3USB14-ALEX is supplied in Tape & Reel (TR) format, which is standard for surface-mount production assembly.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the PI3USB14LEX and PI3USB14-ALEX are ROHS3 compliant with MSL Level 1 rating and REACH unaffected status.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution is determined by matching: 4:1 multiplexer/demultiplexer configuration, 2-channel topology, 8Ohm maximum on-state resistance, 3.3V supply voltage, 815MHz bandwidth, USB 2.0 compliance, 16-TSSOP package, and -40°C to 85°C operating temperature range.