LMV431AIMF Equivalent & Substitute Parts

Part Overview

The LMV431AIMF 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 capability of 30V and supports a maximum cathode current of 80µA. The device is packaged in SOT-23-3 surface mount configuration and operates across the industrial temperature range of -40°C to 85°C.

The LMV431AIMF carries a Last Time Buy product status, indicating that Texas Instruments has discontinued active production. This status necessitates identification of equivalent substitute parts to ensure design continuity and supply chain reliability for ongoing production requirements.

Substiute Parts

LMV431AIMF

Texas InstrumentsIn Stock: 5662LMV431AIMF Datasheet

Current PartRFQ

LMV431AIMF/NOPB

Texas InstrumentsIn Stock: 16178LMV431AIMF/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LMV431AIMF is determined by strict equivalence across the following critical parameters:

Reference Type and Output Type: Both must be Shunt and Adjustable respectively, ensuring functional compatibility in voltage regulation circuits.

Voltage Specifications: Output minimum/fixed voltage must be 1.24V, maximum output voltage must be 30V, and cathode current must be 80µA to maintain circuit performance within design specifications.

Tolerance and Temperature Range: Tolerance must be ±1% and operating temperature range must span -40°C to 85°C to ensure reliability across industrial applications.

Package Configuration: The substitute must use SOT-23-3 surface mount packaging to ensure mechanical and electrical compatibility with existing PCB layouts.

Compliance Standards: RoHS3 compliance and MSL Level 1 rating must be maintained to satisfy regulatory and manufacturing requirements.

Parameter Comparison

Engineering Selection Recommendations

The LMV431AIMF/NOPB serves as the direct equivalent substitute for the LMV431AIMF. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the original LMV431AIMF is designated Last Time Buy, while the LMV431AIMF/NOPB maintains Active status, indicating ongoing availability and production support.

The LMV431AIMF/NOPB is currently available in significantly higher inventory quantities (16,116 pieces versus 5,620 pieces), providing improved supply chain security for production planning. Both variants satisfy ROHS3 compliance and REACH regulatory requirements, ensuring compatibility with current manufacturing and environmental standards.

Selection of the LMV431AIMF/NOPB is appropriate for new designs and ongoing production requirements where supply continuity is a consideration.

Frequently Asked Questions (FAQ)

Q: Can the LMV431AIMF/NOPB be used as a direct replacement for the LMV431AIMF?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage output, current ratings, tolerance, temperature range, and SOT-23-3 packaging. The /NOPB designation indicates lead-free plating and does not affect functional compatibility.

Q: What does the Last Time Buy status mean for the LMV431AIMF?

A: Last Time Buy indicates that Texas Instruments has discontinued active production of this part number. Existing inventory may be available through authorized distributors, but future availability is not guaranteed. The LMV431AIMF/NOPB, with Active status, provides a path for continued supply.

Q: Are there any differences in RoHS or environmental compliance between these parts?

A: No. Both the LMV431AIMF and LMV431AIMF/NOPB are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for manufacturing and environmental standards.

Q: Does the SOT-23-3 package remain the same for both parts?

A: Yes. Both parts use identical SOT-23-3 surface mount packaging (also designated TO-236-3 or SC-59), ensuring compatibility with existing PCB layouts and assembly processes without modification.

Q: What is the significance of the /NOPB suffix?

A: The /NOPB suffix indicates that the part uses lead-free plating and is compliant with lead-free soldering requirements. This does not affect electrical performance or functional compatibility with the original LMV431AIMF.