REF3230AIDBVTG4 Equivalent & Substitute Parts

Part Overview

The REF3230AIDBVTG4 is a series voltage reference IC from Texas Instruments, delivering a fixed 3V output with ±0.2% tolerance in a SOT-23-6 surface mount package. This component is designed for precision voltage reference applications requiring low noise and stable output across industrial temperature ranges (-40°C to 125°C). The part is currently discontinued at DiGi Electronics, making equivalent and substitute parts essential for ongoing production and design continuity.

Substiute Parts

REF3230AIDBVTG4

Texas InstrumentsIn Stock: 774REF3230AIDBVTG4 Datasheet

Current PartRFQ

REF3430IDBVR

Texas InstrumentsIn Stock: 1801REF3430IDBVR Datasheet

MFR RecommendedRFQ

REF3230AIDBVR

Texas InstrumentsIn Stock: 17354REF3230AIDBVR Datasheet

Parametric EquivalentRFQ

REF3230AIDBVT

Texas InstrumentsIn Stock: 1414REF3230AIDBVT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the REF3230AIDBVTG4 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Output voltage: 3V (fixed)
• Output current capability: 10 mA minimum
• Package type: SOT-23-6 surface mount
• Operating temperature range: -40°C to 125°C
• Mounting type: Surface mount

Performance Parameters (allowable variation):

• Tolerance: ±0.2% or better
• Temperature coefficient: 20 ppm/°C or lower
• Noise specifications: 39 µVp-p (0.1Hz to 10Hz) or lower; 57 µVrms (10Hz to 10kHz) or lower
• Input voltage range: Must accommodate 3.05V ~ 5.5V minimum
• Supply current: 135 µA or lower preferred

Substitute parts are grouped into two categories: MFR Recommended (superior performance) and Parametric Equivalents (matching or equivalent specifications).

Parameter Comparison

Engineering Selection Recommendations

REF3430IDBVR (MFR Recommended Substitute): This part is the manufacturer-recommended alternative. It maintains identical output voltage (3V), output current (10 mA), and package (SOT-23-6) while delivering superior performance: ±0.05% tolerance (vs. ±0.2%), 6 ppm/°C temperature coefficient (vs. 20 ppm/°C), and significantly lower noise specifications. The REF3430IDBVR has an extended input voltage range (4.6V ~ 12V) and lower supply current (95 µA). Product status is Active, ensuring long-term availability. This part is suitable for new designs and provides enhanced precision for applications requiring tighter voltage regulation.

REF3230AIDBVR (Parametric Equivalent): This part provides identical electrical specifications to the REF3230AIDBVTG4 with the same tolerance (±0.2%), temperature coefficient (20 ppm/°C), and noise characteristics. It is packaged in SOT-23-6 and maintains the same input voltage range and supply current. Product status is Not For New Designs. This part is suitable for direct replacement in existing designs where the original specifications are required and inventory availability is critical (17,300 pcs in stock).

REF3230AIDBVT (Parametric Equivalent): This part is electrically identical to the REF3230AIDBVTG4, matching all key specifications including tolerance, temperature coefficient, and noise performance. It is packaged in SOT-23-6 with the same operating parameters. Product status is Not For New Designs. This part is suitable for direct replacement where exact specification matching is required (1,341 pcs in stock).

Frequently Asked Questions (FAQ)

Q: Can REF3430IDBVR be used as a direct replacement for REF3230AIDBVTG4?

A: Yes. Both parts share identical output voltage (3V), output current (10 mA), package (SOT-23-6), and operating temperature range (-40°C to 125°C). The REF3430IDBVR offers superior performance with tighter tolerance (±0.05% vs. ±0.2%) and lower noise, making it a direct functional replacement. The extended input voltage range (4.6V ~ 12V vs. 3.05V ~ 5.5V) provides additional design flexibility.

Q: What is the difference between the MFR Recommended and Parametric Equivalent substitutes?

A: The REF3430IDBVR (MFR Recommended) is the manufacturer's designated upgrade path, offering improved specifications and Active product status for new designs. The REF3230AIDBVR and REF3230AIDBVT (Parametric Equivalents) provide identical electrical performance to the original part and are suitable for direct replacement in existing applications, though both have Not For New Designs status.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (REF3430IDBVR, REF3230AIDBVR, and REF3230AIDBVT) are ROHS3 compliant with MSL rating of 2 (1 Year), matching the original REF3230AIDBVTG4.

Q: Can I use these substitutes interchangeably in my circuit?

A: Yes, within the specified electrical parameters. All substitute parts maintain the same 3V output, 10 mA output current capability, SOT-23-6 package, and -40°C to 125°C operating temperature range. Verify that your circuit's input voltage supply falls within the specified range for the selected substitute (3.05V ~ 5.5V for REF3230 variants; 4.6V ~ 12V for REF3430IDBVR).

Q: Which substitute should I choose for a new design?

A: The REF3430IDBVR is the recommended choice for new designs. It has Active product status, superior performance specifications (±0.05% tolerance, 6 ppm/°C temperature coefficient), and lower noise characteristics. It is fully compatible with the original part's pinout and package.

Q: What is the significance of "Not For New Designs" status?

A: Parts marked "Not For New Designs" are still available and fully functional but are not recommended for new circuit designs. They may have limited long-term availability or have been superseded by improved alternatives. For new designs, use parts with Active status such as REF3430IDBVR.