LM4132DMF-3.0 Equivalent & Substitute Parts

Part Overview

The LM4132DMF-3.0 is a Series Voltage Reference IC with fixed 3V output, ±0.4% tolerance, and 20 mA output current in SOT-23-5 surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Substitute parts maintain identical electrical specifications while offering improved availability and compliance status.

Substiute Parts

LM4132DMF-3.0

Texas InstrumentsIn Stock: 1168LM4132DMF-3.0 Datasheet

Current PartRFQ

LM4132DMF-3.0/NOPB

National SemiconductorIn Stock: 1760LM4132DMF-3.0/NOPB Datasheet

Parametric EquivalentRFQ

LM4132DMFX-3.0/NOPB

Texas InstrumentsIn Stock: 20148LM4132DMFX-3.0/NOPB Datasheet

Parametric EquivalentRFQ

LM4132DQ1MFR3.0

Texas InstrumentsIn Stock: 1184LM4132DQ1MFR3.0 Datasheet

Parametric EquivalentRFQ

LM4132DQ1MFT3.0

Texas InstrumentsIn Stock: 1609LM4132DQ1MFT3.0 Datasheet

Parametric EquivalentRFQ

MAX6037AAUK30+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1299MAX6037AAUK30+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical parameter matching:

Parametric Equivalents (LM4132 Family): Parts LM4132DMF-3.0/NOPB, LM4132DMFX-3.0/NOPB, LM4132DQ1MFR3.0, and LM4132DQ1MFT3.0 maintain 100% electrical equivalence with the main part. All critical parameters are identical: 3V fixed output, ±0.4% tolerance, 20 mA output current, 20ppm/°C temperature coefficient, 285µVp-p noise specification, 3.4V–5.5V input range, and SOT-23-5 packaging. These parts differ only in packaging format (bulk vs. tape & reel) and product status (active vs. obsolete).

Manufacturer Recommended Substitute (MAX6037AAUK30+T): This Analog Devices part is designated as a manufacturer-recommended alternative. While it maintains the same 3V output voltage, SOT-23-5 package, and operating temperature range, it differs in output current (5 mA vs. 20 mA), tolerance (±0.2% vs. ±0.4%), temperature coefficient (25ppm/°C vs. 20ppm/°C), and noise characteristics. This part is suitable only for applications where lower output current and tighter tolerance are acceptable or beneficial.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents): Select LM4132DMFX-3.0/NOPB or LM4132DQ1MFT3.0 for new designs and production. Both parts are active, ROHS3 compliant, and maintain identical electrical specifications to the obsolete LM4132DMF-3.0. LM4132DMFX-3.0/NOPB offers the highest inventory availability (20,100 pcs) and is supplied in tape & reel format suitable for automated assembly. LM4132DQ1MFR3.0 and LM4132DQ1MFT3.0 include automotive-grade qualification (AEC-Q100), making them suitable for automotive applications requiring enhanced reliability.

For Automotive Applications: LM4132DQ1MFR3.0 and LM4132DQ1MFT3.0 are the specified choices, as both carry AEC-Q100 qualification and automotive-grade designation while maintaining full electrical equivalence.

For Applications Tolerating Lower Output Current: MAX6037AAUK30+T may be considered only when the application requires output current of 5 mA or less. This part offers superior noise performance (17µVp-p vs. 285µVp-p) and tighter tolerance (±0.2% vs. ±0.4%), but increased supply current (275µA vs. 100µA) and slightly higher temperature coefficient (25ppm/°C vs. 20ppm/°C) must be evaluated against application requirements.

Frequently Asked Questions (FAQ)

Q: Can LM4132DMFX-3.0/NOPB be used as a direct replacement for LM4132DMF-3.0?

A: Yes. Both parts are electrically identical with 3V fixed output, ±0.4% tolerance, 20 mA output current, and SOT-23-5 packaging. The primary difference is product status (active vs. obsolete) and packaging format (tape & reel vs. unspecified). LM4132DMFX-3.0/NOPB is recommended for new designs due to active status and ROHS3 compliance.

Q: What is the difference between LM4132DQ1MFR3.0 and LM4132DQ1MFT3.0?

A: Both parts are electrically identical and carry AEC-Q100 automotive qualification. The designation suffix indicates packaging format variation within tape & reel supply. Selection between them depends on procurement and assembly requirements.

Q: Is MAX6037AAUK30+T a suitable replacement for all applications?

A: No. MAX6037AAUK30+T differs in output current (5 mA vs. 20 mA), tolerance (±0.2% vs. ±0.4%), temperature coefficient (25ppm/°C vs. 20ppm/°C), and supply current (275µA vs. 100µA). It is suitable only for applications where lower output current is acceptable and where the improved noise performance and tighter tolerance provide design benefit.

Q: Why is the LM4132DMF-3.0 marked as obsolete?

A: The original LM4132DMF-3.0 is obsolete, but the LM4132 family remains in active production through multiple variants. Active equivalents with identical specifications are available from Texas Instruments and National Semiconductor.

Q: Are all substitute parts RoHS compliant?

A: LM4132DMFX-3.0/NOPB, LM4132DQ1MFR3.0, LM4132DQ1MFT3.0, and MAX6037AAUK30+T are all ROHS3 compliant. The original LM4132DMF-3.0 is RoHS non-compliant.

Q: What packaging formats are available?

A: LM4132DMF-3.0/NOPB is supplied in bulk format. LM4132DMFX-3.0/NOPB, LM4132DQ1MFR3.0, and LM4132DQ1MFT3.0 are supplied in tape & reel format. MAX6037AAUK30+T is supplied in cut tape and Digi-Reel® format. Tape & reel format is standard for automated assembly operations.