PI4MSD5V9543BLEX Equivalent & Substitute Parts

Part Overview

The PI4MSD5V9543BLEX is a bus switch IC manufactured by Diodes Incorporated, designed for 2 x 1:2 switching applications in logic circuits. This component operates across a wide supply voltage range of 1.65V to 5.5V and is housed in a 14-TSSOP surface mount package. The part maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same functional circuit topology, package form factor, and operating parameters.

Substiute Parts

PI4MSD5V9543BLEX

Diodes IncorporatedIn Stock: 884PI4MSD5V9543BLEX Datasheet

Current PartRFQ

PI4MSD5V9543ALEX

Diodes IncorporatedIn Stock: 3821PI4MSD5V9543ALEX Datasheet

Parametric EquivalentRFQ

TCA9543APWR

Texas InstrumentsIn Stock: 58325TCA9543APWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PI4MSD5V9543BLEX is determined by strict equivalence across the following parameters:

• Circuit topology: 2 x 1:2 bus switch configuration with 1 independent circuit
• Electrical specifications: Single supply voltage range 1.65V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Package compatibility: 14-TSSOP form factor with identical 0.173" (4.40mm) width
• Surface mount technology requirement
• Compliance certifications: ROHS3, REACH Unaffected, EAR99 classification

The identified substitute parts maintain all specified parameters without deviation, ensuring direct functional and mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status with full ROHS3 compliance and REACH Unaffected designation. Selection between PI4MSD5V9543BLEX, PI4MSD5V9543ALEX, and TCA9543APWR is determined by packaging format and inventory availability rather than electrical or mechanical parameters.

PI4MSD5V9543ALEX differs from the main part only in packaging format (Tape & Reel versus standard packaging), with significantly higher inventory availability (3750 pcs). TCA9543APWR, manufactured by Texas Instruments, offers the highest inventory level (58300 pcs) and is supplied in Cut Tape and Digi-Reel format. All three parts satisfy identical functional and compliance requirements for direct substitution in 2 x 1:2 bus switch applications.

Frequently Asked Questions (FAQ)

Q: Can PI4MSD5V9543ALEX be used as a direct replacement for PI4MSD5V9543BLEX?

A: Yes. Both parts are manufactured by Diodes Incorporated with identical electrical specifications, circuit topology, operating temperature range, and 14-TSSOP package dimensions. The only difference is packaging format (Tape & Reel versus standard packaging).

Q: Is TCA9543APWR electrically compatible with PI4MSD5V9543BLEX?

A: Yes. TCA9543APWR from Texas Instruments maintains all specified electrical parameters: 2 x 1:2 bus switch configuration, 1.65V ~ 5.5V supply voltage range, -40°C ~ 85°C operating temperature, and identical 14-TSSOP package form factor.

Q: What determines substitution eligibility for this bus switch IC?

A: Substitution is based on matching circuit topology (2 x 1:2), supply voltage range (1.65V ~ 5.5V), operating temperature range (-40°C ~ 85°C), package type (14-TSSOP with 0.173" width), surface mount technology, and compliance certifications (ROHS3, REACH Unaffected, EAR99).

Q: Does packaging format affect electrical performance?

A: No. Packaging format (standard, Tape & Reel, or Cut Tape) does not affect electrical performance or functional compatibility. Format selection is based on assembly process requirements and inventory logistics.

Q: Are all substitute parts currently in active production?

A: Yes. PI4MSD5V9543BLEX, PI4MSD5V9543ALEX, and TCA9543APWR all maintain Active product status with current manufacturing and distribution.