PI5C3125WE Bus Switch 1 x 1:1 Equivalent & Substitute Parts

Part Overview

The PI5C3125WE is a bus switch IC manufactured by Diodes Incorporated, designed for 1 x 1:1 switching applications in logic circuits. This component operates on a single supply voltage between 4.5V and 5.5V and is housed in a 14-SOIC surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement capability.

Substiute Parts

PI5C3125WE

Diodes IncorporatedIn Stock: 971PI5C3125WE Datasheet

Current PartRFQ

SN74CBT3125CDR

Texas InstrumentsIn Stock: 3518SN74CBT3125CDR Datasheet

MFR RecommendedRFQ

SN74CBT3125DR

Texas InstrumentsIn Stock: 2896SN74CBT3125DR Datasheet

MFR RecommendedRFQ

SN74CBT3125CD

Texas InstrumentsIn Stock: 1731SN74CBT3125CD Datasheet

Parametric EquivalentRFQ

SN74CBT3125D

Texas InstrumentsIn Stock: 2536SN74CBT3125D Datasheet

Parametric EquivalentRFQ

SN74CBT3126D

Texas InstrumentsIn Stock: 3671SN74CBT3126D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PI5C3125WE is determined by strict equivalence across the following parameters:

• Circuit configuration: 1 x 1:1 topology with 4 independent circuits
• Voltage supply range: 4.5V ~ 5.5V single supply operation
• Operating temperature range: -40°C ~ 85°C
• Package type: 14-SOIC surface mount with 0.154" (3.90mm) width
• Electrical characteristics: Bus switch functionality with identical pin configuration
• Compliance standards: ROHS3 compliance and REACH unaffected status

All substitute parts listed below meet these criteria and are qualified for direct replacement in applications currently using the PI5C3125WE.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the obsolete PI5C3125WE, the following selection criteria apply:

Primary Recommendation: SN74CBT3125CDR (Texas Instruments) is the preferred substitute. This part maintains active product status, ensuring long-term availability and manufacturing support. It is supplied in Tape & Reel packaging, which is standard for high-volume production environments. Full electrical and mechanical compatibility is confirmed across all specified parameters.

Alternative Options: SN74CBT3125CD offers identical electrical specifications with active product status but is supplied in Tube packaging, suitable for lower-volume or prototype applications. Both SN74CBT3125DR and SN74CBT3125D are classified as Last Time Buy, indicating limited future availability; these should be considered only when immediate substitution is required and primary options are unavailable.

Compliance Assurance: All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, matching the environmental and regulatory requirements of the original PI5C3125WE.

Frequently Asked Questions (FAQ)

Q: Can SN74CBT3125CDR be used as a direct replacement for PI5C3125WE? A: Yes. Both parts share identical circuit configuration (1 x 1:1), independent circuit count (4), voltage supply range (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and 14-SOIC package specifications. Pin-for-pin compatibility is confirmed.

Q: What is the difference between SN74CBT3125CDR, SN74CBT3125CD, and SN74CBT3125D? A: These parts are electrically identical but differ in packaging format and product status. SN74CBT3125CDR is supplied in Tape & Reel (active status), SN74CBT3125CD in Tube (active status), and SN74CBT3125D in Tube (Last Time Buy status). Selection depends on production volume requirements and supply chain strategy.

Q: Why is SN74CBT3126D listed as a substitute? A: SN74CBT3126D meets all electrical and mechanical substitution criteria: identical 1 x 1:1 circuit configuration, 4 independent circuits, 4.5V ~ 5.5V supply voltage, -40°C ~ 85°C operating range, and 14-SOIC package. It is functionally equivalent for bus switch applications within these specifications.

Q: Does packaging type affect electrical performance? A: No. Tape & Reel, Cut Tape, and Tube packaging formats contain identical die and electrical characteristics. Packaging selection is determined by production volume, handling equipment, and inventory management requirements, not by electrical performance.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the environmental certifications of the original PI5C3125WE.

Q: Should I avoid Last Time Buy parts? A: Last Time Buy parts (SN74CBT3125DR, SN74CBT3125D, SN74CBT3126D) indicate limited future manufacturing availability. For new designs or long-term production, prioritize Active status parts such as SN74CBT3125CDR or SN74CBT3125CD to ensure sustained supply chain support.