REF4132A40DBVR Equivalent & Substitute Parts

Part Overview

The REF4132A40DBVR is an active series voltage reference integrated circuit manufactured by Texas Instruments, classified within the Power Management (PMIC) category. This device generates a fixed 4.096V output with ±0.05% tolerance and is designed for precision analog applications requiring stable reference voltages. The part is currently in active production status with 3300 units available in inventory. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and functional characteristics align with the original specification, enabling procurement flexibility and supply chain continuity.

Substiute Parts

REF4132A40DBVR

Texas InstrumentsIn Stock: 3349REF4132A40DBVR Datasheet

Current PartRFQ

REF4132A40DBVRQ1

Texas InstrumentsIn Stock: 3224REF4132A40DBVRQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the REF4132A40DBVR is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Fixed output voltage of 4.096V
• Output current capability of 10 mA
• Tolerance specification of ±0.05%
• Temperature coefficient of 12 ppm/°C
• Input voltage operating range compatibility
• Supply current of 100 µA
• Operating temperature range of −40°C to 125°C

Mechanical Equivalence Criteria:

• Package type: SOT-23-5 (SC-74A, SOT-753)
• Surface mount mounting type
• Pin-compatible footprint

Compliance Criteria:

• RoHS3 compliance
• Moisture Sensitivity Level 2 (1 Year)
• REACH unaffected status

Parts meeting all electrical, mechanical, and compliance parameters are classified as parametric equivalents and direct substitutes. Packaging format differences (Cut Tape versus Tape & Reel) do not affect functional substitution but may impact procurement and handling procedures.

Parameter Comparison

Engineering Selection Recommendations

REF4132A40DBVRQ1 as Direct Substitute:

The REF4132A40DBVRQ1 is a parametric equivalent to the REF4132A40DBVR with full electrical and mechanical compatibility. Both parts share identical output voltage, tolerance, temperature coefficient, noise characteristics, and operating temperature range. The SOT-23-5 package footprint is identical, enabling direct board-level substitution without design modification.

Differentiation Factors:

The REF4132A40DBVRQ1 carries automotive-grade qualification (AEC-Q100) and is supplied in Tape & Reel packaging, whereas the REF4132A40DBVR is supplied in Cut Tape format. The automotive qualification does not restrict use in non-automotive applications; it indicates additional qualification testing and process controls. The input voltage range of the REF4132A40DBVRQ1 (4.05V minimum) provides a marginally wider operating window compared to the REF4132A40DBVR (4.146V minimum), offering enhanced flexibility in low-input-voltage scenarios.

Selection Criteria:

• Use REF4132A40DBVR when Cut Tape packaging is required for manual assembly or specific procurement workflows.
• Use REF4132A40DBVRQ1 when Tape & Reel packaging is required for automated assembly or when automotive-grade qualification is mandated by application or customer specification.
• Both parts are suitable for precision analog reference applications requiring 4.096V output with ±0.05% accuracy across the −40°C to 125°C operating range.

Frequently Asked Questions (FAQ)

Q: Can REF4132A40DBVRQ1 be used as a direct replacement for REF4132A40DBVR on existing PCBs?

A: Yes. Both parts are pin-compatible in the SOT-23-5 package and exhibit identical electrical characteristics. No PCB redesign or component rework is required for substitution.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging supplies individual components on tape segments suitable for manual pick-and-place or small-volume assembly. Tape & Reel (TR) packaging supplies components on continuous reel format optimized for high-speed automated assembly equipment. Electrical performance is identical; packaging format affects procurement, handling, and assembly methodology only.

Q: Does the automotive-grade qualification of REF4132A40DBVRQ1 restrict its use in non-automotive applications?

A: No. Automotive-grade qualification (AEC-Q100) indicates enhanced reliability testing and process controls. Parts qualified to automotive standards are suitable for any application, including industrial, medical, and consumer electronics. Automotive qualification does not impose application restrictions.

Q: Are the input voltage ranges of both parts compatible?

A: Both parts operate across the 4.146V to 5.5V range specified for the REF4132A40DBVR. The REF4132A40DBVRQ1 extends the minimum input voltage to 4.05V, providing additional margin. Applications designed for the REF4132A40DBVR will function identically with the REF4132A40DBVRQ1.

Q: What is the temperature coefficient specification, and why is it important?

A: The temperature coefficient of 12 ppm/°C specifies the output voltage drift per degree Celsius change in operating temperature. Across the −40°C to 125°C operating range (165°C span), the maximum voltage drift is approximately 1.98 mV, or 0.048% of the 4.096V output. This specification is critical for precision analog applications requiring stable reference voltages across temperature extremes.

Q: Are both parts RoHS3 compliant?

A: Yes. Both REF4132A40DBVR and REF4132A40DBVRQ1 are RoHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for European and global markets.