and ## headings only

• No horizontal rules or separators
• Pure HTML tables for data
• No concluding statements or sales language
• Output ready for direct web Markdown rendering

I'll structure the output as:

1. Page Title
2. Part Overview
3. Key Parameters (HTML table)
4. Substitute Part Grouping Explanation
5. Parameter Comparison (HTML table)
6. Engineering Selection Recommendations
7. Frequently Asked Questions (FAQ)

Here's the generated reference page:

TL431CPW Equivalent & Substitute Parts

Part Overview

The TL431CPW is a shunt voltage reference IC manufactured by Texas Instruments, classified as a Power Management (PMIC) component. This adjustable reference device provides a 2.495V output with ±2.2% tolerance and supports output currents up to 100 mA across an input voltage range of 2.495V to 36V. The device is packaged in an 8-TSSOP surface mount configuration with a 4.40mm width.

The TL431CPW is currently listed as obsolete. Locating equivalent or substitute parts is necessary to support ongoing maintenance, repair, and redesign activities for legacy systems utilizing this component.

Substiute Parts

TL431CPW

Texas InstrumentsIn Stock: 868TL431CPW Datasheet

Current PartRFQ

TL431CPWR

Texas InstrumentsIn Stock: 18507TL431CPWR Datasheet

MFR RecommendedRFQ

TL431BVDMR2G

onsemiIn Stock: 3097TL431BVDMR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL431CPW is determined by strict equivalence across the following critical parameters:

• Reference Type: Shunt
• Output Type: Adjustable
• Voltage - Output (Min/Fixed): 2.495V
• Voltage - Output (Max): 36V
• Current - Output: 100 mA
• Current - Cathode: 1 mA
• Mounting Type: Surface Mount
• Base Product Number: TL431

The substitute parts identified maintain these core electrical specifications. Variations in tolerance, temperature coefficient, operating temperature range, and package form factor are noted but do not prevent functional substitution when circuit design parameters accommodate such differences.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), consistent with the original TL431CPW specification.

TL431CPWR is a direct Texas Instruments equivalent with identical electrical and thermal specifications. The primary difference is packaging format: TL431CPWR is supplied in Tape & Reel (TR) configuration versus the TL431CPW Cut Tape (CT) format. Both maintain the 8-TSSOP package footprint and are functionally interchangeable at the circuit level.

TL431BVDMR2G, manufactured by onsemi, provides improved tolerance performance (±0.4% versus ±2.2%) and extended operating temperature range (-40°C ~ 125°C versus 0°C ~ 70°C). The device is packaged in 8-MSOP format with a narrower 3.00mm width compared to the 4.40mm width of the 8-TSSOP package. This package difference requires PCB layout verification for mechanical compatibility. The onsemi device includes specified temperature coefficient performance (50ppm/°C Typical), whereas the original TL431CPW does not specify this parameter.

Frequently Asked Questions (FAQ)

Q: Can TL431CPWR be used as a direct replacement for TL431CPW?

A: Yes. TL431CPWR maintains identical electrical specifications, operating temperature range, and package footprint. The difference in packaging format (Tape & Reel versus Cut Tape) does not affect circuit-level compatibility.

Q: What are the key differences between TL431BVDMR2G and TL431CPW?

A: TL431BVDMR2G differs in three areas: (1) Tolerance is ±0.4% versus ±2.2%, providing tighter output voltage accuracy; (2) Operating temperature range extends to -40°C ~ 125°C versus 0°C ~ 70°C; (3) Package form is 8-MSOP with 3.00mm width versus 8-TSSOP with 4.40mm width. All core electrical parameters remain equivalent.

Q: Is the 8-MSOP package compatible with 8-TSSOP PCB layouts?

A: The 8-MSOP and 8-TSSOP packages have different physical dimensions. The 8-MSOP is narrower (3.00mm versus 4.40mm width). PCB layout verification is required to confirm mechanical compatibility before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. TL431CPWR and TL431BVDMR2G are both ROHS3 compliant with MSL 1 (Unlimited) rating, matching the original TL431CPW specification.

Q: What is the significance of the ±0.4% tolerance in TL431BVDMR2G?

A: The ±0.4% tolerance in TL431BVDMR2G provides tighter output voltage accuracy compared to the ±2.2% tolerance of TL431CPW. This improved accuracy may benefit applications requiring stricter voltage reference stability, provided the circuit design accommodates the extended temperature range and package dimensions.