REF3425TIDBVR Equivalent & Substitute Parts

Part Overview

The REF3425TIDBVR is a 2.5-V fixed series voltage reference integrated circuit manufactured by Texas Instruments. This component operates as a low-drift, low-power precision voltage reference with a fixed output of 2.5V and output tolerance of ±0.05%. The device is classified as a Power Management (PMIC) component and is housed in a SOT-23-6 surface mount package. The REF3425TIDBVR maintains Active product status and is suitable for applications requiring stable reference voltages across industrial temperature ranges. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the REF34xx series.

Substiute Parts

REF3425TIDBVR

Texas InstrumentsIn Stock: 9143REF3425TIDBVR Datasheet

Current PartRFQ

REF3425IDBVR

Texas InstrumentsIn Stock: 31576REF3425IDBVR Datasheet

Parametric EquivalentRFQ

REF3425QDBVRQ1

Texas InstrumentsIn Stock: 2433REF3425QDBVRQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the REF3425TIDBVR are identified based on strict electrical and mechanical parameter equivalence. The substitution logic is based on the following criteria:

Critical Parameters for Substitution:

• Fixed output voltage of 2.5V
• Output tolerance of ±0.05%
• Output current capability of 10 mA
• Temperature coefficient of 6 ppm/°C
• Noise specifications (5 µVp-p at 0.1Hz to 10Hz; 24 µVrms at 10Hz to 10kHz)
• Input voltage range of 3V to 12V
• Supply current of 95 µA
• Operating temperature range of -40°C to 125°C
• SOT-23-6 package configuration
• Surface mount mounting type

All substitute parts listed maintain identical electrical performance specifications and mechanical compatibility. Differences between substitute parts are limited to product grade classification, qualification standards, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

REF3425IDBVR is a direct parametric equivalent to the REF3425TIDBVR with identical electrical and mechanical specifications. The REF3425IDBVR carries ROHS3 compliance and REACH unaffected status, providing enhanced regulatory alignment for applications requiring environmental compliance documentation.

REF3425QDBVRQ1 is a direct parametric equivalent with automotive-grade qualification under AEC-Q100 standards. This variant is suitable for applications requiring automotive-level reliability and qualification. The REF3425QDBVRQ1 also carries ROHS3 compliance and REACH unaffected status.

Selection between these three parts depends on application requirements:

• Use REF3425TIDBVR for standard industrial applications where regulatory compliance is not a primary constraint.
• Use REF3425IDBVR when ROHS3 compliance and environmental documentation are required.
• Use REF3425QDBVRQ1 for automotive applications or systems requiring AEC-Q100 qualified components.

All three parts are Active products with full inventory availability and are suitable for direct substitution based on electrical performance and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can REF3425IDBVR be used as a direct replacement for REF3425TIDBVR?

A: Yes. The REF3425IDBVR is a parametric equivalent with identical electrical specifications, output voltage, tolerance, current ratings, temperature coefficient, noise characteristics, input voltage range, supply current, operating temperature range, and SOT-23-6 package configuration. Both components are surface mount devices with identical moisture sensitivity levels.

Q: What is the difference between REF3425TIDBVR and REF3425QDBVRQ1?

A: The electrical and mechanical specifications are identical. The primary difference is that REF3425QDBVRQ1 is automotive-grade and carries AEC-Q100 qualification, making it suitable for automotive applications. REF3425TIDBVR is industrial-grade. Both maintain the same 2.5V output, ±0.05% tolerance, 10 mA output current, and SOT-23-6 package.

Q: Are all three parts compatible with the same PCB layout?

A: Yes. All three parts use the SOT-23-6 package configuration with identical pin assignments and mechanical dimensions. PCB layouts designed for one part are compatible with all three substitutes without modification.

Q: Does the REF3425IDBVR have better environmental compliance than REF3425TIDBVR?

A: The REF3425IDBVR carries ROHS3 compliance and REACH unaffected status, while the REF3425TIDBVR has RoHS status listed as not applicable. For applications requiring documented environmental compliance, REF3425IDBVR or REF3425QDBVRQ1 are appropriate selections.

Q: Which part should be selected for automotive applications?

A: REF3425QDBVRQ1 is the appropriate selection for automotive applications due to its automotive-grade classification and AEC-Q100 qualification. This part meets automotive industry reliability and qualification standards.

Q: Are there any performance differences in noise characteristics between the three parts?

A: No. All three parts maintain identical noise specifications: 5 µVp-p at 0.1Hz to 10Hz and 24 µVrms at 10Hz to 10kHz.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided the design does not have specific requirements for automotive qualification or regulatory compliance documentation. All three parts are electrically and mechanically equivalent and maintain identical performance across the specified operating temperature range of -40°C to 125°C.