REF3240AIDBVR Equivalent & Substitute Parts

Part Overview

The REF3240AIDBVR is a Series Voltage Reference IC from Texas Instruments, providing a fixed 4.096V output with ±0.2% tolerance in a SOT-23-6 surface mount package. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product roadmap. Finding equivalent or substitute parts is necessary for ongoing production support, legacy system maintenance, and design flexibility when the original part becomes unavailable or when improved performance specifications are required.

Substiute Parts

REF3240AIDBVR

Texas InstrumentsIn Stock: 5892REF3240AIDBVR Datasheet

Current PartRFQ

REF3440IDBVR

Texas InstrumentsIn Stock: 3174REF3440IDBVR Datasheet

MFR RecommendedRFQ

REF3240AIDBVT

Texas InstrumentsIn Stock: 1902REF3240AIDBVT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the REF3240AIDBVR are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Fixed output voltage of 4.096V
• SOT-23-6 package (identical pinout and form factor)
• Surface mount mounting type
• Operating temperature range of -40°C ~ 125°C
• Output current capability of 10 mA minimum

Substitution Categories:

Parametric Equivalent: REF3240AIDBVT shares identical electrical specifications and packaging with the main part. This substitute differs only in packaging format (Tape & Reel vs. Cut Tape & Digi-Reel®) and represents a direct functional replacement with no performance trade-offs.

Manufacturer Recommended Upgrade: REF3440IDBVR is the active, recommended substitute from Texas Instruments. While maintaining the same 4.096V output, SOT-23-6 package, and 10 mA output current, it offers improved performance specifications including tighter tolerance (±0.05% vs. ±0.2%), lower temperature coefficient (6ppm/°C vs. 20ppm/°C), and reduced noise characteristics. The REF3440IDBVR is classified as Active product status, making it suitable for new designs.

Parameter Comparison

Engineering Selection Recommendations

For Legacy System Maintenance and Ongoing Production Support: The REF3240AIDBVT is the appropriate choice when exact parametric matching is required. Both parts are classified as Not For New Designs and share identical electrical performance, tolerance, noise, and temperature characteristics. Selection between REF3240AIDBVR and REF3240AIDBVT depends solely on packaging format availability and supply chain considerations.

For New Designs and Long-Term Availability: The REF3440IDBVR is the manufacturer-recommended substitute and is classified as Active product status. This part is suitable for new designs and provides superior performance specifications across all measured parameters: tighter tolerance, lower temperature coefficient, significantly reduced noise, lower supply current consumption, and wider input voltage range. The REF3440IDBVR maintains full compatibility through identical SOT-23-6 packaging and equivalent output current capability.

Compliance Considerations: All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Selection should prioritize the REF3440IDBVR for designs requiring long-term manufacturer support and improved performance margins.

Frequently Asked Questions (FAQ)

Q: Can REF3240AIDBVT be used as a direct replacement for REF3240AIDBVR? A: Yes. REF3240AIDBVT is a parametric equivalent with identical electrical specifications, tolerance, noise performance, and temperature characteristics. The only difference is packaging format (Tape & Reel vs. Cut Tape & Digi-Reel®). Both are classified as Not For New Designs.

Q: What are the advantages of using REF3440IDBVR instead of REF3240AIDBVR? A: REF3440IDBVR offers improved performance specifications including tighter tolerance (±0.05% vs. ±0.2%), lower temperature coefficient (6ppm/°C vs. 20ppm/°C), reduced noise (3.8µVp-p vs. 53µVp-p at 0.1Hz-10Hz), lower supply current (95µA vs. 135µA), and wider input voltage range (4.596V-12V vs. 4.146V-5.5V). Additionally, REF3440IDBVR is classified as Active, making it suitable for new designs.

Q: Are all substitute parts compatible with the same PCB layout? A: Yes. All three parts use the SOT-23-6 package with identical pinout and form factor, allowing direct PCB compatibility without layout modifications.

Q: What is the significance of the "Not For New Designs" status? A: This designation indicates the manufacturer has superseded the part in their product roadmap. While the part remains available for legacy system support, Texas Instruments recommends using REF3440IDBVR for new designs to ensure long-term availability and manufacturer support.

Q: Do all substitute parts meet the same environmental and regulatory standards? A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.