TLV431CLPM Equivalent & Substitute Parts

Part Overview

The TLV431CLPM is a shunt voltage reference IC manufactured by Texas Instruments, designed for adjustable voltage regulation applications. This component provides a fixed output of 1.24V with a maximum output of 6V and supports 15mA output current. The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain compatibility across electrical specifications, package form factor, and thermal operating ranges.

Substiute Parts

TLV431CLPM

Texas InstrumentsIn Stock: 847TLV431CLPM Datasheet

Current PartRFQ

TLV431ACLPR

Texas InstrumentsIn Stock: 1006TLV431ACLPR Datasheet

MFR RecommendedRFQ

TS431AIZ-AP

STMicroelectronicsIn Stock: 1122TS431AIZ-AP Datasheet

MFR RecommendedRFQ

TS431AIZT

STMicroelectronicsIn Stock: 55282TS431AIZT Datasheet

MFR RecommendedRFQ

TS431IZ-AP

STMicroelectronicsIn Stock: 907TS431IZ-AP Datasheet

MFR RecommendedRFQ

TS431IZT

STMicroelectronicsIn Stock: 5126TS431IZT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLV431CLPM is determined by the following criteria:

Mandatory Compatibility Parameters:

• Reference Type: Shunt
• Output Type: Adjustable
• Voltage - Output (Min/Fixed): 1.24V
• Voltage - Output (Max): 6V
• Package / Case: TO-92-3
• Mounting Type: Through Hole

Allowable Variation Parameters:

• Current - Output: Substitute parts may have equal or higher current ratings (15mA or greater)
• Tolerance: Substitute parts may have equal or tighter tolerance (±1.5% or better)
• Current - Cathode: Substitute parts may have equal or lower cathode current
• Operating Temperature: Substitute parts may have equal or extended temperature range
• Product Status: Active or Last Time Buy parts are acceptable replacements for obsolete parts

All identified substitute parts meet these criteria and maintain functional equivalence within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

TLV431ACLPR (Texas Instruments): This part maintains the same manufacturer lineage as the original TLV431CLPM with improved tolerance (±1% versus ±1.5%). It operates within the same temperature range (0°C ~ 70°C) and carries Last Time Buy status, indicating limited future availability. Selection is appropriate for designs requiring Texas Instruments sourcing continuity and standard temperature operation.

TS431AIZ-AP and TS431AIZT (STMicroelectronics): Both parts offer extended operating temperature range (-40°C ~ 125°C) and improved tolerance (±1%). The TS431AIZT provides higher inventory availability (55,200 units) in Tape & Reel packaging, suitable for high-volume production. Both parts feature 30mA output current, exceeding the original 15mA specification, and lower cathode current (60µA versus 80µA). These parts are classified as Active, ensuring long-term availability.

TS431IZ-AP and TS431IZT (STMicroelectronics): These alternatives maintain ±2% tolerance, matching the original specification's tolerance band. Both provide extended temperature range (-40°C ~ 125°C) and 30mA output current. The TS431IZT offers substantial inventory (5,071 units) in Cut Tape packaging. These parts are Active status components suitable for applications where tolerance relaxation is acceptable.

For new designs, STMicroelectronics TS431 series parts are recommended due to Active product status and extended temperature range. For existing designs requiring minimal specification changes, TLV431ACLPR provides direct Texas Instruments compatibility.

Frequently Asked Questions (FAQ)

Q: Can TS431 series parts directly replace the TLV431CLPM?

A: Yes. All TS431 variants maintain the same reference type (Shunt), output type (Adjustable), minimum output voltage (1.24V), maximum output voltage (6V), and TO-92-3 package. The higher output current (30mA versus 15mA) and lower cathode current (60µA versus 80µA) are compatible with applications designed for the original part.

Q: What is the difference between TS431AIZ-AP and TS431IZ-AP?

A: Both parts are manufactured by STMicroelectronics in TO-92-3 packaging with identical electrical specifications except tolerance. TS431AIZ-AP specifies ±1% tolerance, while TS431IZ-AP specifies ±2% tolerance. Selection depends on circuit accuracy requirements. Both offer extended temperature range (-40°C ~ 125°C) and 30mA output current.

Q: Why do substitute parts have higher output current ratings?

A: The TS431 series from STMicroelectronics is rated for 30mA output current compared to the original 15mA specification. This represents an enhanced capability that maintains backward compatibility. Circuits designed for 15mA operation function identically with 30mA-rated parts.

Q: Are there packaging differences between substitute options?

A: All substitute parts use TO-92-3 through-hole packaging, maintaining identical physical form factor and PCB mounting compatibility. Packaging variants (Cut Tape, Tape & Box, Tape & Reel) refer to supply format only and do not affect component functionality or board-level integration.

Q: Which substitute part offers the best long-term availability?

A: TS431AIZT provides the highest inventory (55,200 units) and Active product status, ensuring sustained availability. This part is recommended for production designs requiring supply chain stability.

Q: Can TLV431ACLPR be used in applications requiring extended temperature operation?

A: No. TLV431ACLPR operates within 0°C ~ 70°C temperature range, identical to the original TLV431CLPM. Applications requiring operation below 0°C or above 70°C must use STMicroelectronics TS431 series parts, which support -40°C ~ 125°C operation.