TLV431AID Equivalent & Substitute Parts

Part Overview

The TLV431AID is a shunt voltage reference IC manufactured by Texas Instruments, designed for precision voltage regulation applications. This adjustable reference provides a fixed output of 1.24V with a maximum output voltage of 6V and supports a 15mA output current. The device is packaged in an 8-SOIC surface mount configuration and operates across the industrial temperature range of -40°C to 85°C.

The TLV431AID is currently classified as Last Time Buy, indicating that production has been discontinued. This status necessitates identification of equivalent substitute parts to ensure design continuity and procurement availability for ongoing production requirements.

Substiute Parts

TLV431AID

Texas InstrumentsIn Stock: 1869TLV431AID Datasheet

Current PartRFQ

TLV431AIDBZR

Texas InstrumentsIn Stock: 68481TLV431AIDBZR Datasheet

MFR RecommendedRFQ

LMV431AIM5/NOPB

Texas InstrumentsIn Stock: 126211LMV431AIM5/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLV431AID is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Reference Type: Shunt
• Output Type: Adjustable
• Voltage - Output (Min/Fixed): 1.24V
• Current - Output: 15mA
• Tolerance: ±1%
• Current - Cathode: 80µA
• Operating Temperature Range: -40°C to 85°C (TA)

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

The identified substitute parts maintain electrical equivalence across all specified parameters. Package variations are permitted when the substitute part retains functional compatibility and meets all electrical specifications. The TLV431AIDBZR provides an alternative in SOT-23-3 packaging with identical electrical characteristics. The LMV431AIM5/NOPB offers extended voltage output capability (30V maximum) while maintaining all other core electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

TLV431AIDBZR is the primary recommended substitute for the TLV431AID. This part maintains identical electrical specifications and is currently in Active production status, ensuring long-term availability. The transition from 8-SOIC to SOT-23-3 packaging requires PCB layout modification but does not affect electrical performance. This substitute is suitable for new designs and production transitions where package footprint changes are acceptable.

LMV431AIM5/NOPB is an alternative substitute that extends the maximum output voltage specification to 30V while maintaining all other electrical parameters. This part is also in Active production status. The SOT-23-5 package differs from the original 8-SOIC configuration and requires PCB redesign. This substitute is appropriate for applications requiring higher output voltage capability within the same functional family.

Both substitute parts are ROHS3 compliant and manufactured by Texas Instruments, ensuring compliance consistency with the original TLV431AID specification.

Frequently Asked Questions (FAQ)

Q: Can the TLV431AIDBZR directly replace the TLV431AID without circuit modification?

A: The TLV431AIDBZR is electrically equivalent to the TLV431AID across all specified parameters. However, the package change from 8-SOIC to SOT-23-3 requires PCB footprint modification. Circuit topology remains unchanged.

Q: What is the primary difference between TLV431AIDBZR and LMV431AIM5/NOPB?

A: The maximum output voltage differs: TLV431AIDBZR supports 6V maximum output, while LMV431AIM5/NOPB supports 30V maximum output. Both maintain the 1.24V minimum output voltage and all other electrical specifications. Package configurations also differ (SOT-23-3 versus SOT-23-5).

Q: Are both substitute parts suitable for industrial temperature applications?

A: Yes. Both TLV431AIDBZR and LMV431AIM5/NOPB operate across the -40°C to 85°C temperature range, matching the original TLV431AID specification.

Q: What compliance certifications apply to the substitute parts?

A: Both substitute parts are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance with the original TLV431AID.

Q: Which substitute should be selected for a new design?

A: Selection depends on output voltage requirements. For applications requiring maximum 6V output, TLV431AIDBZR is appropriate. For applications requiring higher output voltage capability up to 30V, LMV431AIM5/NOPB is suitable. Both parts are in Active production status and recommended for new designs.