PI3B3126W Equivalent & Substitute Parts

Part Overview

The PI3B3126W is a Bus Switch logic IC manufactured by Diodes Incorporated, configured as a 1 x 1:1 switch with 4 independent circuits in a 14-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The PI3B3126W operates from a single 3V to 3.6V supply and functions across the industrial temperature range of -40°C to 85°C.

Substiute Parts

PI3B3126W

Diodes IncorporatedIn Stock: 901PI3B3126W 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 PI3B3126W is determined by strict equivalence across the following parameters: bus switch type, 1 x 1:1 circuit configuration, 4 independent circuits, single supply operation, 14-SOIC package, surface mount mounting type, and operating temperature range of -40°C to 85°C. The supply voltage range is the primary differentiator among available substitutes. The PI3B3126W operates at 3V to 3.6V, while certain Texas Instruments alternatives support a broader 2.3V to 3.6V range. All substitute parts maintain identical package geometry, circuit topology, and thermal specifications.

Parameter Comparison

Engineering Selection Recommendations

For new designs and production applications, the SN74CBTLV3126DR is the primary substitute. This part is manufactured by Texas Instruments, carries Active product status, is ROHS3 compliant, and is available in high volume (13,956 pcs in stock) in Tape & Reel packaging suitable for automated assembly. The extended supply voltage range of 2.3V to 3.6V provides additional design flexibility compared to the original PI3B3126W specification.

The PI3B3125WE serves as a secondary Diodes Incorporated option, maintaining the same 3V to 3.6V supply range as the original part while offering Active product status and ROHS3 compliance. This part is available in Tube packaging with 1,457 pcs in stock.

The SN74CBTLV3126D is classified as Last Time Buy, indicating limited future availability. This part should be selected only when Tape & Reel packaging is not required or when design constraints necessitate Tube packaging from Texas Instruments.

Frequently Asked Questions (FAQ)

Q: Can the PI3B3125WE directly replace the PI3B3126W? A: Yes. Both parts share identical bus switch topology (1 x 1:1 configuration with 4 independent circuits), 14-SOIC package geometry, surface mount mounting type, and operating temperature range. The PI3B3125WE maintains the same 3V to 3.6V supply voltage specification as the original part.

Q: What is the difference between SN74CBTLV3126D and SN74CBTLV3126DR? A: Both parts are functionally equivalent with identical electrical specifications and 14-SOIC package. The primary difference is packaging format: SN74CBTLV3126D is supplied in Tube packaging, while SN74CBTLV3126DR is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for high-volume automated assembly operations.

Q: Why is the PI3B3126W classified as obsolete? A: The PI3B3126W has reached end-of-life status. Active alternatives from both Diodes Incorporated (PI3B3125WE) and Texas Instruments (SN74CBTLV3126D and SN74CBTLV3126DR) provide equivalent functionality with improved compliance status and ongoing manufacturing support.

Q: Are all substitute parts ROHS3 compliant? A: The PI3B3125WE, SN74CBTLV3126D, and SN74CBTLV3126DR are all ROHS3 compliant. The original PI3B3126W is RoHS non-compliant. Substitution to any of these parts improves regulatory compliance for new designs.

Q: Can I use SN74CBTLV3126DR in applications designed for 3V to 3.6V operation? A: Yes. The SN74CBTLV3126DR supports a supply voltage range of 2.3V to 3.6V, which encompasses the original 3V to 3.6V specification. The extended lower voltage limit provides additional design margin without affecting operation at the original specification.

Q: What is the moisture sensitivity level for all parts? A: All parts, including the original PI3B3126W and all substitutes, have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.