PI3B3126WE Equivalent & Substitute Parts

Part Overview

The PI3B3126WE is a Bus Switch 1 x 1:1 logic IC manufactured by Diodes Incorporated in a 14-SOIC surface mount package. This component is classified as Obsolete, making identification of suitable alternatives essential for ongoing design support and production continuity. The part operates with a single supply voltage range of 3V to 3.6V and supports operating temperatures from -40°C to 85°C. Equivalent and substitute parts must maintain functional compatibility across the bus switching circuit topology while meeting the same electrical and mechanical specifications.

Substiute Parts

PI3B3126WE

Diodes IncorporatedIn Stock: 1646PI3B3126WE Datasheet

Current PartRFQ

PI3B3125WE

Diodes IncorporatedIn Stock: 1554PI3B3125WE Datasheet

Parametric EquivalentRFQ

SN74CBTLV3126D

Texas InstrumentsIn Stock: 1402SN74CBTLV3126D Datasheet

MFR RecommendedRFQ

SN74CBTLV3126DR

Texas InstrumentsIn Stock: 14033SN74CBTLV3126DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PI3B3126WE is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: 1 x 1:1 topology with 4 independent circuits
• Package Type: 14-SOIC surface mount package with 0.154" (3.90mm) width
• Voltage Supply Source: Single supply operation
• Operating Temperature Range: -40°C to 85°C
• Compliance Standards: ROHS3 compliance and MSL Level 1

The PI3B3125WE (Diodes Incorporated) qualifies as a parametric equivalent, maintaining identical electrical specifications and packaging. The SN74CBTLV3126D and SN74CBTLV3126DR (Texas Instruments) are manufacturer-recommended alternatives with compatible circuit topology and package specifications. The Texas Instruments variants support an extended lower voltage supply range (2.3V ~ 3.6V), providing broader operational flexibility while maintaining full compatibility with the original 3V ~ 3.6V specification.

Parameter Comparison

Engineering Selection Recommendations

For replacement of the obsolete PI3B3126WE, the PI3B3125WE from Diodes Incorporated is the primary parametric equivalent, offering identical electrical and mechanical specifications with Active product status. This part maintains full compatibility and is recommended for designs requiring direct substitution without modification.

The SN74CBTLV3126DR from Texas Instruments is the preferred long-term alternative, offering Active product status with extended voltage supply range (2.3V ~ 3.6V) and high inventory availability (13,956 units). This part is suitable for new designs and production continuity where supply of the Diodes Incorporated variant is constrained.

The SN74CBTLV3126D from Texas Instruments is available as a secondary option with Last Time Buy status. While functionally equivalent, this part has limited future availability and should be considered only when SN74CBTLV3126DR supply is unavailable.

Frequently Asked Questions (FAQ)

Q: Can the PI3B3125WE directly replace the PI3B3126WE?

A: Yes. The PI3B3125WE maintains identical circuit configuration (1 x 1:1 with 4 independent circuits), package type (14-SOIC), voltage supply range (3V ~ 3.6V), and operating temperature specifications (-40°C ~ 85°C). No design modifications are required.

Q: What is the difference between the Diodes Incorporated and Texas Instruments substitutes?

A: The primary difference is the extended lower voltage supply range of the Texas Instruments variants (2.3V ~ 3.6V versus 3V ~ 3.6V). Both maintain identical circuit topology, package specifications, and operating temperature range. The Texas Instruments parts offer broader voltage flexibility for applications operating below 3V.

Q: Are the SN74CBTLV3126D and SN74CBTLV3126DR interchangeable?

A: Both parts are functionally equivalent with identical electrical specifications and 14-SOIC packaging. The primary difference is packaging format: SN74CBTLV3126D is supplied in Tube packaging, while SN74CBTLV3126DR is supplied in Tape & Reel (TR) format. Selection depends on production volume and assembly requirements.

Q: What is the significance of the product status designations?

A: Obsolete status indicates the PI3B3126WE is no longer manufactured. Active status (PI3B3125WE and SN74CBTLV3126DR) indicates ongoing production and long-term availability. Last Time Buy status (SN74CBTLV3126D) indicates limited future availability and should be avoided for new production commitments.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original PI3B3126WE specifications.