PI3C3125WEX Equivalent & Substitute Parts

Part Overview

The PI3C3125WEX is a bus switch IC manufactured by Diodes Incorporated, configured as a 1 x 1:1 logic switch in a 14-SOIC surface mount package. This component functions as a single-pole, single-throw (SPST) electronic switch for routing digital signals in logic applications. The device operates from a single supply voltage and is designed for low-voltage digital signal switching.

The PI3C3125WEX carries a Last Time Buy product status, indicating that Diodes Incorporated has discontinued this part number. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure long-term component availability for new production runs and system maintenance.

Substiute Parts

PI3C3125WEX

Diodes IncorporatedIn Stock: 2659PI3C3125WEX Datasheet

Current PartRFQ

SN74CBTLV3125DR

Texas InstrumentsIn Stock: 2246SN74CBTLV3125DR Datasheet

Parametric EquivalentRFQ

SN74CBTLV3126DR

Texas InstrumentsIn Stock: 14033SN74CBTLV3126DR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PI3C3125WEX are identified based on strict parametric equivalence across the following critical criteria:

• Circuit configuration: 1 x 1:1 bus switch topology
• Independent circuits: 4 circuits per package
• Voltage supply range: 2.3V ~ 3.6V single supply operation
• Operating temperature range: -40°C ~ 85°C
• Package specification: 14-SOIC (0.154", 3.90mm Width)
• Surface mount mounting type
• RoHS3 compliance and REACH unaffected status

The substitute parts identified—SN74CBTLV3125DR and SN74CBTLV3126DR—meet all of these parametric requirements and are manufactured by Texas Instruments. Both parts maintain identical electrical specifications and physical packaging, enabling direct functional replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both SN74CBTLV3125DR and SN74CBTLV3126DR from Texas Instruments are suitable replacements for the PI3C3125WEX. The primary distinction between these two substitutes is their packaging format and product availability status.

The SN74CBTLV3125DR is supplied in Cut Tape (CT) & Digi-Reel® format with 2200 units currently in stock. The SN74CBTLV3126DR is supplied in Tape & Reel (TR) format with 13956 units in stock. Both parts maintain Active product status, ensuring continued availability and long-term supply chain stability compared to the Last Time Buy status of the original PI3C3125WEX.

Selection between the two Texas Instruments alternatives should be based on packaging requirements and procurement volume. For high-volume production requiring standard tape and reel packaging, the SN74CBTLV3126DR is the preferred choice due to higher inventory availability. For lower-volume applications or specific packaging requirements, the SN74CBTLV3125DR accommodates alternative packaging formats.

All three parts are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Frequently Asked Questions (FAQ)

Q: Can SN74CBTLV3125DR and SN74CBTLV3126DR be used interchangeably with PI3C3125WEX?

A: Yes. Both Texas Instruments parts are parametric equivalents meeting identical electrical specifications, voltage supply ranges, operating temperature ranges, and 14-SOIC package dimensions. They function as direct replacements in circuit applications.

Q: What is the difference between SN74CBTLV3125DR and SN74CBTLV3126DR?

A: The primary difference is packaging format. SN74CBTLV3125DR uses Cut Tape (CT) & Digi-Reel® packaging, while SN74CBTLV3126DR uses standard Tape & Reel (TR) packaging. Electrical specifications and pin configurations are identical.

Q: Why is the PI3C3125WEX marked as Last Time Buy?

A: Last Time Buy status indicates that Diodes Incorporated has discontinued this part number. Customers requiring this functionality should transition to active alternatives such as the Texas Instruments SN74CBTLV series to ensure continued component availability.

Q: Are there any compliance differences between the original and substitute parts?

A: No. All three parts maintain identical RoHS3 compliance and REACH unaffected status, meeting current environmental and regulatory standards.

Q: What packaging considerations apply when switching from PI3C3125WEX to substitute parts?

A: The 14-SOIC package dimensions are identical across all three parts (0.154", 3.90mm Width). PCB footprints and assembly processes remain unchanged. Packaging format selection (Cut Tape vs. Tape & Reel) depends on procurement volume and handling requirements.

Q: Is there a difference in moisture sensitivity between these parts?

A: No. All three parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling or baking requirements during storage or assembly.