PI3C3126LEX Equivalent & Substitute Parts

Part Overview

The PI3C3126LEX is a bus switch IC manufactured by Diodes Incorporated, designed for logic-level signal routing applications. This device features a 1 x 1:1 circuit configuration with 4 independent circuits in a 14-TSSOP surface mount package. The part is currently in Last Time Buy status, making identification of suitable equivalent components essential for ongoing design support and procurement planning.

Substiute Parts

PI3C3126LEX

Diodes IncorporatedIn Stock: 8755PI3C3126LEX Datasheet

Current PartRFQ

TC7MBL3126CFT(EL)

Toshiba Semiconductor and StorageIn Stock: 4736TC7MBL3126CFT(EL) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PI3C3126LEX is determined by the following critical parameters:

Package Compatibility: The substitute part must use the 14-TSSOP package format to ensure mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Voltage Supply Range: The substitute must operate within or encompass the 2.3V ~ 3.6V supply voltage range of the original part. Extended voltage ranges are acceptable.

Circuit Configuration & Independent Circuits: The substitute must provide equivalent or greater switching capability. The PI3C3126LEX offers 1 x 1:1 circuit configuration with 4 independent circuits. Substitutes with 4 x 1:1 configuration and 1 independent circuit provide functionally equivalent switching paths.

Regulatory Compliance: Both RoHS3 compliance and MSL Level 1 rating are required to maintain manufacturing and environmental standards.

Mounting Type: Surface mount technology must be preserved for assembly compatibility.

Parameter Comparison

Engineering Selection Recommendations

The TC7MBL3126CFT(EL) from Toshiba Semiconductor and Storage qualifies as a functional equivalent to the PI3C3126LEX based on the following criteria:

Package Equivalence: Both parts use the 14-TSSOP package with identical physical dimensions, ensuring direct PCB layout compatibility without redesign.

Voltage Supply Compatibility: The Toshiba part operates across 1.65V ~ 3.6V, which encompasses the original part's 2.3V ~ 3.6V range, providing equal or superior voltage flexibility.

Regulatory Compliance: Both parts maintain ROHS3 compliance and MSL Level 1 rating, satisfying environmental and manufacturing requirements.

Product Lifecycle Status: The Toshiba TC7MBL3126CFT(EL) maintains Active product status, ensuring long-term availability and supply chain stability compared to the Last Time Buy status of the original PI3C3126LEX.

Functional Equivalence: While the circuit topologies differ (1 x 1:1 versus 4 x 1:1), both configurations provide equivalent switching functionality with 4 independent signal paths, making them interchangeable for bus switch applications.

Frequently Asked Questions (FAQ)

Q: Can the TC7MBL3126CFT(EL) be used as a direct replacement for the PI3C3126LEX?

A: Yes. Both parts share identical 14-TSSOP packaging, equivalent voltage supply ranges, and provide 4 independent switching circuits. The different circuit topologies (1 x 1:1 versus 4 x 1:1) do not affect functional compatibility in bus switch applications.

Q: What is the difference between 1 x 1:1 and 4 x 1:1 circuit configurations?

A: The PI3C3126LEX uses 1 x 1:1 configuration with 4 independent circuits, while the TC7MBL3126CFT(EL) uses 4 x 1:1 configuration with 1 independent circuit. Both provide equivalent switching paths and are functionally interchangeable for signal routing.

Q: Does the Toshiba part support the same voltage range as the Diodes part?

A: The Toshiba TC7MBL3126CFT(EL) supports 1.65V ~ 3.6V, which encompasses the Diodes PI3C3126LEX range of 2.3V ~ 3.6V. The Toshiba part provides extended lower voltage capability.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant with MSL Level 1 rating and identical ECCN and HTSUS classifications, meeting all regulatory requirements.

Q: Why is the PI3C3126LEX in Last Time Buy status?

A: Last Time Buy status indicates the manufacturer is discontinuing production. The TC7MBL3126CFT(EL) maintains Active status, making it the recommended choice for new designs and ongoing procurement.

Q: Can I use the TC7MBL3126CFT(EL) in existing PCB layouts designed for the PI3C3126LEX?

A: Yes. Identical 14-TSSOP packaging ensures pin-for-pin compatibility and direct PCB layout compatibility without modification.