LMV331IDCKRE4 Equivalent & Substitute Parts

Part Overview

The LMV331IDCKRE4 is a general-purpose comparator IC manufactured by Texas Instruments, packaged in SC-70-5 (5-TSSOP) surface mount configuration. This part is discontinued at DiGi Electronics but remains available through inventory stock of 2300 pieces. The LMV331 series provides single-element open-collector output comparators suitable for low-voltage applications requiring precision signal comparison across industrial and consumer electronics.

Finding equivalent and substitute parts is necessary due to the discontinued product status at primary distributors. Functionally compatible alternatives exist within the LMV331 product family and from cross-manufacturer sources, maintaining electrical performance while offering improved availability and active product support.

Substiute Parts

LMV331IDCKRE4

Texas InstrumentsIn Stock: 2346LMV331IDCKRE4 Datasheet

Current PartRFQ

LMV331M5/NOPB

Texas InstrumentsIn Stock: 2428LMV331M5/NOPB Datasheet

MFR RecommendedRFQ

LMV331M5X/NOPB

Texas InstrumentsIn Stock: 20266LMV331M5X/NOPB Datasheet

MFR RecommendedRFQ

LMV331M7/NOPB

Texas InstrumentsIn Stock: 2465LMV331M7/NOPB Datasheet

MFR RecommendedRFQ

LMV331M7X/NOPB

Texas InstrumentsIn Stock: 3362LMV331M7X/NOPB Datasheet

MFR RecommendedRFQ

LMV331IDCKR

Texas InstrumentsIn Stock: 65451LMV331IDCKR Datasheet

Parametric EquivalentRFQ

LMV331IDCKT

Texas InstrumentsIn Stock: 2510LMV331IDCKT Datasheet

Parametric EquivalentRFQ

LMV331SE-7

Diodes IncorporatedIn Stock: 5297LMV331SE-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LMV331IDCKRE4 are classified into two categories based on electrical and mechanical compatibility:

Manufacturer Recommended Substitutes (MFR Recommended): Parts LMV331M5/NOPB, LMV331M5X/NOPB, LMV331M7/NOPB, and LMV331M7X/NOPB maintain identical electrical specifications and operating parameters. These parts differ in packaging format (SOT-23-5 or SC-70-5) and tape/reel configuration. All are active products with current manufacturing status.

Parametric Equivalents: Parts LMV331IDCKR and LMV331IDCKT share identical electrical characteristics and SC-70-5 packaging with the main part. These are direct parametric matches with active product status and higher inventory availability.

Cross-Manufacturer Equivalent: Part LMV331SE-7 from Diodes Incorporated provides functional equivalence with identical electrical specifications, SOT-353 packaging (mechanically compatible with SC-70-5), and extended operating temperature range (-40°C ~ 125°C).

Substitution is determined by the following key parameters:

• Supply voltage range: 2.7V ~ 5.5V
• Input offset voltage: 7mV @ 5V maximum
• Input bias current: 0.25µA @ 5V maximum
• Output type: Open-Collector
• Propagation delay: 600ns maximum
• Package mechanical compatibility: SC-70-5, SOT-353, or SOT-23-5

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Package): Select LMV331IDCKR or LMV331IDCKT for immediate substitution. Both maintain SC-70-5 packaging, identical electrical specifications, and open-collector output configuration. LMV331IDCKR offers superior inventory availability (65,400 pieces) compared to LMV331IDCKT (2,400 pieces). Both parts carry active product status with ROHS3 compliance and MSL-1 rating.

For Active Product Status with Package Flexibility: LMV331M7/NOPB and LMV331M7X/NOPB provide SC-70-5 packaging with active manufacturing status. LMV331M7X/NOPB offers higher inventory (3,300 pieces) and Cut Tape & Digi-Reel packaging. These parts feature reduced quiescent current (120µA vs. 150µA) and maintain all electrical specifications.

For SOT-23-5 Package Applications: LMV331M5/NOPB and LMV331M5X/NOPB are suitable when PCB layout accommodates smaller SOT-23-5 footprint. LMV331M5X/NOPB provides exceptional inventory depth (20,200 pieces) with active product status and Cut Tape & Digi-Reel packaging.

For Extended Temperature Range: LMV331SE-7 from Diodes Incorporated extends operating temperature to 125°C (vs. 85°C maximum for Texas Instruments variants) while maintaining SOT-353 mechanical compatibility with SC-70-5. This part features faster propagation delay (450ns vs. 600ns) and active product status. MSL-3 rating requires controlled storage conditions (168-hour limit).

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original LMV331IDCKRE4.

Frequently Asked Questions (FAQ)

Q: Can LMV331M5/NOPB replace LMV331IDCKRE4 directly on the PCB?

A: LMV331M5/NOPB is electrically equivalent but uses SOT-23-5 package instead of SC-70-5. PCB footprint modification is required. If SC-70-5 package is mandatory, use LMV331IDCKR, LMV331IDCKT, LMV331M7/NOPB, or LMV331M7X/NOPB instead.

Q: What is the difference between LMV331M7/NOPB and LMV331M7X/NOPB?

A: Both parts are electrically identical with SC-70-5 packaging and active product status. The difference is packaging format: LMV331M7/NOPB is supplied on Tape & Reel (TR), while LMV331M7X/NOPB is supplied on Cut Tape (CT) & Digi-Reel. Inventory availability differs (2,400 vs. 3,300 pieces).

Q: Is LMV331SE-7 from Diodes Incorporated a suitable replacement?

A: Yes. LMV331SE-7 maintains identical electrical specifications and SOT-353 package (mechanically compatible with SC-70-5). It offers extended operating temperature range (-40°C to 125°C) and faster propagation delay (450ns). MSL-3 rating requires proper moisture control during storage and handling.

Q: Why does LMV331IDCKR have higher inventory than the original part?

A: LMV331IDCKR is an active product with ongoing manufacturing, while LMV331IDCKRE4 is discontinued. Active products maintain higher stock levels at distributors to support current demand.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Supply voltage range (2.7V ~ 5.5V), input offset voltage (7mV @ 5V max), input bias current (0.25µA @ 5V max), output type (open-collector), and propagation delay (600ns max) define substitution compatibility. All listed parts meet these criteria.

Q: Can I use LMV331M5X/NOPB in high-volume production?

A: Yes. LMV331M5X/NOPB offers the highest inventory availability (20,200 pieces) among all substitutes, active product status, and Cut Tape & Digi-Reel packaging suitable for automated assembly. Verify PCB layout compatibility with SOT-23-5 footprint.

Q: What is the MSL rating and why does it matter?

A: MSL (Moisture Sensitivity Level) indicates moisture absorption limits. MSL-1 (unlimited) parts like LMV331IDCKRE4 and most substitutes require no special moisture control. LMV331SE-7 with MSL-3 rating must be stored in controlled humidity and used within 168 hours of opening the package.