LMV331IDCKTE4 Equivalent & Substitute Parts

Part Overview

The LMV331IDCKTE4 is a general-purpose comparator IC manufactured by Texas Instruments, featuring open-collector output in SC-70-5 surface-mount packaging. This device is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines. The LMV331 series provides single-element comparator functionality suitable for precision voltage comparison applications across industrial and consumer electronics.

Substiute Parts

LMV331IDCKTE4

Texas InstrumentsIn Stock: 1215LMV331IDCKTE4 Datasheet

Current PartRFQ

LMV331IDCKT

Texas InstrumentsIn Stock: 2510LMV331IDCKT Datasheet

MFR RecommendedRFQ

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

LMV331SE-7

Diodes IncorporatedIn Stock: 5297LMV331SE-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LMV331IDCKTE4 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Supply voltage range: 2.7V ~ 5.5V
• Input offset voltage: 7mV @ 5V maximum
• Input bias current: 0.25µA @ 5V maximum
• Output current: 84mA @ 5V typical
• Propagation delay: 600ns maximum
• Quiescent current: 150µA maximum

Package Compatibility:

• Surface-mount packaging only (5-TSSOP, SC-70-5, SOT-353)
• Pin count: 5 pins

Compliance Requirements:

• ROHS3 compliant
• REACH unaffected status

Substitute parts are grouped into two categories: manufacturer-recommended direct replacements (identical electrical and package specifications) and parametric equivalents (matching electrical performance with alternative packaging options).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: LMV331IDCKT

The LMV331IDCKT is the direct manufacturer-recommended replacement for the discontinued LMV331IDCKTE4. Both parts share identical electrical specifications, SC-70-5 packaging, and open-collector output configuration. The LMV331IDCKT maintains active product status with 2400 units in stock and carries ROHS3 compliance certification.

Alternative Recommendation: LMV331IDCKR

The LMV331IDCKR provides parametric equivalence with identical electrical performance and SC-70-5 packaging. This variant offers the highest inventory availability at 65400 units and maintains all compliance certifications. Selection of this part is appropriate when supply chain considerations are prioritized.

Package Alternative: LMV331M7/NOPB or LMV331M7X/NOPB

These variants maintain SC-70-5 packaging with active product status. The LMV331M7X/NOPB variant offers 3300 units in stock. These parts feature reduced quiescent current (120µA vs. 150µA) and expanded output type specification (CMOS, Open-Collector, TTL).

Cross-Manufacturer Option: LMV331SE-7 (Diodes Incorporated)

The LMV331SE-7 provides parametric equivalence from an alternative manufacturer. This part features improved propagation delay (450ns vs. 600ns) and extended operating temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C). SOT-353 packaging is mechanically compatible with SC-70-5 footprints. Quiescent current is reduced to 120µA. ROHS3 compliance is maintained with MSL-3 moisture sensitivity rating.

Package Variant: LMV331M5/NOPB or LMV331M5X/NOPB

These SOT-23-5 package variants are suitable only when PCB layout accommodates alternative footprints. The LMV331M5X/NOPB offers highest availability at 20200 units. Electrical performance matches other active variants with 120µA quiescent current.

Frequently Asked Questions (FAQ)

Q: Can LMV331IDCKT directly replace LMV331IDCKTE4 without circuit modification?

A: Yes. The LMV331IDCKT is the manufacturer-recommended direct replacement with identical electrical specifications, package type (SC-70-5), and output configuration (open-collector). No circuit modifications are required.

Q: What is the difference between SC-70-5 and SOT-23-5 packaging options?

A: SC-70-5 (5-TSSOP) and SOT-23-5 are distinct surface-mount packages with different footprints and pin layouts. PCB redesign is required to accommodate SOT-23-5 variants. SC-70-5 packages (LMV331IDCKT, LMV331M7/NOPB, LMV331M7X/NOPB, LMV331IDCKR) maintain the original footprint compatibility.

Q: Are there performance differences between Texas Instruments and Diodes Incorporated LMV331 variants?

A: The LMV331SE-7 from Diodes Incorporated meets all electrical parameter requirements with improved propagation delay (450ns vs. 600ns maximum) and extended operating temperature range (-40°C ~ 125°C). Quiescent current is reduced to 120µA. All parts maintain ROHS3 compliance.

Q: Which substitute part offers the best inventory availability?

A: The LMV331IDCKR provides the highest inventory level at 65400 units with identical electrical specifications and SC-70-5 packaging to the original part.

Q: Can I use SOT-23-5 package variants if my PCB is designed for SC-70-5?

A: No. SOT-23-5 and SC-70-5 packages have different footprints and pin configurations. PCB layout modification is required to use LMV331M5/NOPB or LMV331M5X/NOPB variants. Use SC-70-5 package variants for direct PCB compatibility.

Q: What compliance certifications apply to all substitute parts?

A: All listed substitute parts maintain ROHS3 compliance and REACH unaffected status. The LMV331SE-7 carries MSL-3 moisture sensitivity rating, while Texas Instruments variants carry MSL-1 (unlimited) rating.