LM393FVJ-E2 Equivalent & Substitute Parts

Part Overview

The LM393FVJ-E2 is a dual general-purpose comparator manufactured by Rohm Semiconductor in 8-TSSOP surface-mount packaging. This device operates across a wide supply voltage range (3V ~ 32V single supply, ±1.5V ~ 16V dual supply) and is designed for general-purpose comparison applications requiring low input offset voltage and minimal quiescent current. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to address packaging preferences, supply voltage optimization, or inventory availability while maintaining functional equivalence within specified electrical parameters.

Substiute Parts

LM393FVJ-E2

Rohm SemiconductorIn Stock: 2499LM393FVJ-E2 Datasheet

Current PartRFQ

AS393AMTR-E1

Diodes IncorporatedIn Stock: 232270AS393AMTR-E1 Datasheet

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AS393AMTR-G1

Diodes IncorporatedIn Stock: 25513AS393AMTR-G1 Datasheet

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LMV393IPW

Texas InstrumentsIn Stock: 1662LMV393IPW Datasheet

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LMV393MM

National SemiconductorIn Stock: 1913LMV393MM Datasheet

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LMV393MX/NOPB

Texas InstrumentsIn Stock: 4393LMV393MX/NOPB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM393FVJ-E2 is determined by the following criteria:

Functional Requirements:

• Dual comparator configuration (2 elements minimum)
• General-purpose comparator type
• Operating temperature range: -40°C ~ 85°C
• Surface-mount packaging

Electrical Compatibility:

• Supply voltage range must overlap or exceed the application requirement
• Input offset voltage and input bias current must not exceed specified maximums
• Output current capability must support the load
• Quiescent current must remain within acceptable limits

Regulatory & Compliance:

• RoHS3 compliance required
• Active or Last Time Buy product status acceptable
• MSL rating of 1 (Unlimited) preferred

Packaging Considerations:

• Primary package: 8-TSSOP or 8-SOIC (both 8-pin surface-mount options)
• Tape & Reel or Tube packaging acceptable for manufacturing environments

Parameter Comparison

Engineering Selection Recommendations

AS393AMTR-E1 and AS393AMTR-G1 (Diodes Incorporated): These parts provide direct functional equivalence with extended supply voltage range (2V ~ 36V vs. 3V ~ 32V) and improved input offset voltage specifications. Both maintain Active product status and full RoHS3 compliance. The 8-SOIC package offers alternative PCB layout compatibility. Selection between E1 and G1 variants depends on input bias current tolerance requirements (0.25µA vs. 0.4µA).

LMV393MX/NOPB (Texas Instruments): This part maintains Active status with RoHS3 compliance and offers the same 8-TSSOP package footprint as the primary part. However, the supply voltage range is restricted to 2.7V ~ 5.5V, limiting applicability to low-voltage systems. Higher output current (84mA vs. 16mA) and quiescent current (300µA vs. 1mA) may impact power budget in battery-powered applications.

LMV393IPW (Texas Instruments): Functionally equivalent in 8-TSSOP packaging but carries Last Time Buy status, indicating discontinued production. Supply voltage limitation (2.7V ~ 5.5V) restricts use to low-voltage applications. Higher quiescent current consumption (250µA) and output current (84mA) differ significantly from the primary part.

LMV393MM (National Semiconductor): Insufficient parameter data provided for engineering evaluation. Package information unavailable. REACH Affected status indicates potential regulatory constraints.

Frequently Asked Questions (FAQ)

Q: Can AS393AMTR-E1 or AS393AMTR-G1 replace LM393FVJ-E2 in all applications?

A: Both Diodes Incorporated parts are functionally compatible for applications operating within the overlapping supply voltage range (3V ~ 32V). The 8-SOIC package requires PCB layout modification compared to the 8-TSSOP footprint. Input offset voltage is superior (3mV vs. 4.5mV), and supply voltage range is extended. Verify output type compatibility; AS393 series feature open-collector output, while LM393FVJ-E2 output type is not specified in available data.

Q: What is the primary limitation of LMV393MX/NOPB as a substitute?

A: The restricted supply voltage range (2.7V ~ 5.5V) makes this part unsuitable for applications requiring the full 3V ~ 32V range of the LM393FVJ-E2. Additionally, higher quiescent current (300µA vs. 1mA maximum) and output current (84mA vs. 16mA typical) may require circuit redesign for power-sensitive applications.

Q: Why is LMV393IPW marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. While functionally available, long-term supply cannot be guaranteed. This part should be considered only for legacy system maintenance or when alternative parts are unavailable.

Q: How do package differences affect substitution?

A: The LM393FVJ-E2 uses 8-TSSOP (0.118" width), while AS393AMTR-E1 and AS393AMTR-G1 use 8-SOIC (0.154" width). Both are 8-pin surface-mount packages with different footprints. PCB layout and reflow profile adjustments are required when switching between these packages. Pin configuration must be verified against schematic requirements.

Q: Are all substitute parts RoHS3 compliant?

A: AS393AMTR-E1, AS393AMTR-G1, LMV393IPW, and LMV393MX/NOPB are confirmed RoHS3 compliant. LMV393MM compliance status is not specified in available data. Verify compliance documentation for your specific application requirements.