TLV431BIDBVRG4 Equivalent & Substitute Parts

Part Overview

The TLV431BIDBVRG4 is a shunt voltage reference IC with adjustable output from Texas Instruments, designed for precision voltage regulation applications. This part features a 1.24V adjustable output, 6V maximum output voltage, and ±0.5% tolerance in a SOT-23-5 surface mount package. The device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Substiute Parts

TLV431BIDBVRG4

Texas InstrumentsIn Stock: 974TLV431BIDBVRG4 Datasheet

Current PartRFQ

TLV431BIDBVR

Texas InstrumentsIn Stock: 24901TLV431BIDBVR Datasheet

MFR RecommendedRFQ

TLV431BE5TA

Diodes IncorporatedIn Stock: 3447TLV431BE5TA Datasheet

DirectRFQ

TS431AILT

STMicroelectronicsIn Stock: 21726TS431AILT Datasheet

MFR RecommendedRFQ

TS431AIYLT

STMicroelectronicsIn Stock: 18817TS431AIYLT Datasheet

MFR RecommendedRFQ

TS431BILT

STMicroelectronicsIn Stock: 9608TS431BILT Datasheet

MFR RecommendedRFQ

TS431BIYLT

STMicroelectronicsIn Stock: 2205TS431BIYLT Datasheet

MFR RecommendedRFQ

TS431ILT

STMicroelectronicsIn Stock: 56209TS431ILT Datasheet

MFR RecommendedRFQ

TS431IYLT

STMicroelectronicsIn Stock: 2611TS431IYLT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TLV431BIDBVRG4 is determined by the following critical parameters:

• Reference Type & Output Type: All substitutes must be shunt voltage references with adjustable output
• Voltage Output Range: Minimum 1.24V fixed output; maximum output voltage must be ≥6V
• Current Output: Minimum 15 mA required
• Tolerance: ±0.5% tolerance preferred for direct equivalence; ±1% and ±2% tolerance parts are acceptable substitutes with relaxed precision requirements
• Package Compatibility: SOT-23-5 package required for direct pin compatibility
• Operating Temperature: Extended range (-40°C ~ 125°C) acceptable; base range (-40°C ~ 85°C) minimum
• Compliance: ROHS3 compliant; REACH unaffected status maintained

Substitutes are grouped by tolerance grade and current output capacity, as these parameters define functional equivalence and application suitability.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Direct Replacement): TLV431BIDBVR from Texas Instruments is the direct active equivalent. It maintains identical electrical specifications (6V output, 15 mA current, ±0.5% tolerance) and package format (SOT-23-5). This part is currently in active production status with 24,880 units in stock, providing immediate availability and design continuity.

Secondary Substitutes (Functional Equivalents with Enhanced Performance): TS431BILT and TS431BIYLT from STMicroelectronics provide ±0.5% tolerance matching with increased current output (30 mA vs. 15 mA) and extended operating temperature range (-40°C ~ 125°C). TS431BIYLT includes automotive-grade qualification (AEC-Q100), suitable for automotive and harsh environment applications. Both use SOT-23-5 packaging for direct pin compatibility.

Relaxed Tolerance Alternatives: TS431AILT and TS431AIYLT offer ±1% tolerance with 30 mA output and extended temperature range. TS431ILT and TS431IYLT provide ±2% tolerance with identical current and temperature specifications. These are suitable for applications where precision requirements are less stringent than ±0.5%.

Extended Voltage Rating Option: TLV431BE5TA from Diodes Incorporated supports 18V maximum output (vs. 6V), providing headroom for higher voltage applications. This part uses SOT-25 packaging, which differs from the SOT-23-5 standard and requires PCB layout verification before implementation.

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can I use TS431BILT as a direct replacement for TLV431BIDBVRG4? A: TS431BILT is functionally equivalent with matching ±0.5% tolerance and 6V output rating. It provides superior performance with 30 mA output (vs. 15 mA) and extended temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C). Pin compatibility is maintained in SOT-23-5 packaging. Verify your application does not depend on the lower cathode current specification (60 µA vs. 100 µA).

Q: What is the difference between TS431BILT and TS431BIYLT? A: Both parts are electrically identical with ±0.5% tolerance, 6V output, and 30 mA current. TS431BIYLT includes automotive-grade qualification (AEC-Q100) and is suitable for automotive, industrial, and mission-critical applications requiring enhanced reliability screening. Standard commercial applications can use TS431BILT.

Q: Why does TLV431BE5TA have a different package (SOT-25 vs. SOT-23-5)? A: TLV431BE5TA is manufactured by Diodes Incorporated and uses SOT-25 packaging. While functionally compatible as a shunt voltage reference, the different package requires PCB layout modification and cannot be used as a direct pin-for-pin replacement. Verify footprint compatibility before design implementation.

Q: Can I use a ±1% or ±2% tolerance part if my application requires ±0.5%? A: No. Tolerance specifications define the maximum allowable deviation from the nominal 1.24V output. Applications requiring ±0.5% precision must use parts with ±0.5% tolerance (TLV431BIDBVR, TS431BILT, or TS431BIYLT). Using relaxed tolerance parts will not meet specification requirements.

Q: Is the extended operating temperature range (-40°C ~ 125°C) backward compatible with designs requiring -40°C ~ 85°C? A: Yes. Extended temperature range is a superset specification. Parts rated for -40°C ~ 125°C are fully compatible with applications requiring only -40°C ~ 85°C operation.

Q: What does AEC-Q100 qualification mean? A: AEC-Q100 is an automotive industry standard qualification indicating the part has passed enhanced reliability testing for automotive applications. Parts with AEC-Q100 qualification (TS431AIYLT, TS431BIYLT, TS431IYLT) are suitable for automotive and high-reliability applications. Standard commercial parts without this qualification are suitable for consumer and industrial applications.