REF3325AIDBZTG4 Equivalent & Substitute Parts

Part Overview

The REF3325AIDBZTG4 is a Series Voltage Reference IC manufactured by Texas Instruments, delivering a fixed 2.5V output with ±0.15% tolerance in a SOT-23-3 surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a -40°C to 125°C temperature range with 8.5µA supply current and is ROHS3 compliant.

Substiute Parts

REF3325AIDBZTG4

Texas InstrumentsIn Stock: 2145REF3325AIDBZTG4 Datasheet

Current PartRFQ

REF3325AIDBZR

Texas InstrumentsIn Stock: 35454REF3325AIDBZR Datasheet

Parametric EquivalentRFQ

REF3325AIDBZT

Texas InstrumentsIn Stock: 1514REF3325AIDBZT Datasheet

Parametric EquivalentRFQ

ADR381ARTZ-R2

Analog Devices Inc.In Stock: 1527ADR381ARTZ-R2 Datasheet

MFR RecommendedRFQ

ADR381ARTZ-REEL7

Analog Devices Inc.In Stock: 32591ADR381ARTZ-REEL7 Datasheet

MFR RecommendedRFQ

MAX6025AEUR+T

Analog Devices Inc./Maxim IntegratedIn Stock: 25307MAX6025AEUR+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters: output voltage (2.5V fixed), package type (SOT-23-3), mounting method (surface mount), and functional classification (series voltage reference). All substitute parts listed maintain these core specifications.

Parametric equivalents from Texas Instruments (REF3325AIDBZR and REF3325AIDBZT) are identical in electrical performance and differ only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). These parts retain the same tolerance (±0.15%), temperature coefficient (30ppm/°C), and operating range.

Manufacturer-recommended alternatives from Analog Devices Inc. (ADR381ARTZ-R2, ADR381ARTZ-REEL7) and Maxim Integrated (MAX6025AEUR+T) provide functional equivalence with variations in secondary parameters including tolerance, temperature coefficient, supply current, and input voltage range. These parts are suitable where the specified parameter variations are acceptable within the application circuit design.

Parameter Comparison

Engineering Selection Recommendations

REF3325AIDBZR and REF3325AIDBZT are direct parametric equivalents with identical electrical specifications and are the primary substitutes for REF3325AIDBZTG4. Both parts are active products from Texas Instruments with ROHS3 compliance and equivalent performance characteristics. Selection between these two depends on packaging format requirements: REF3325AIDBZR is supplied in Cut Tape & Digi-Reel® format with 35,400 units in stock, while REF3325AIDBZT is also in Cut Tape & Digi-Reel® format with 1,414 units in stock.

ADR381ARTZ-R2 and ADR381ARTZ-REEL7 from Analog Devices Inc. are manufacturer-recommended alternatives suitable for applications where the specified parameter variations are acceptable. These parts feature improved noise performance (5µVp-p versus 70µVp-p), wider input voltage range (2.8V ~ 18V), and superior moisture sensitivity rating (MSL 1 Unlimited). However, they exhibit higher supply current (140µA versus 8.5µA) and reduced operating temperature range (-40°C ~ 85°C versus -40°C ~ 125°C). ADR381ARTZ-REEL7 has significantly higher inventory availability (32,533 units).

MAX6025AEUR+T from Maxim Integrated provides an alternative with improved temperature coefficient (20ppm/°C) and lower supply current (35µA). This part is limited to 500µA output current compared to the 5mA specification of the original part, making it suitable only for applications with reduced current requirements. It maintains ROHS3 compliance and MSL 1 rating with 25,200 units in stock.

Frequently Asked Questions (FAQ)

Q: Can REF3325AIDBZR or REF3325AIDBZT be used as direct replacements for REF3325AIDBZTG4?

A: Yes. Both parts are parametric equivalents with identical electrical specifications including output voltage, tolerance, temperature coefficient, and operating range. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). Both are active products from Texas Instruments.

Q: What are the key differences between Texas Instruments REF3325 variants and Analog Devices ADR381ARTZ alternatives?

A: The ADR381ARTZ series offers superior noise performance (5µVp-p versus 70µVp-p), wider input voltage range (2.8V ~ 18V versus 2.7V ~ 5.5V), and better moisture sensitivity rating (MSL 1 Unlimited versus MSL 2). Trade-offs include significantly higher supply current (140µA versus 8.5µA) and reduced maximum operating temperature (85°C versus 125°C).

Q: Is MAX6025AEUR+T suitable as a substitute?

A: MAX6025AEUR+T is functionally equivalent in package and output voltage but is limited to 500µA output current versus the 5mA specification of REF3325AIDBZTG4. This part is suitable only for applications requiring lower output current. It provides improved temperature coefficient (20ppm/°C) and lower supply current (35µA).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and are suitable for applications with environmental compliance requirements.

Q: What is the significance of MSL rating differences?

A: MSL (Moisture Sensitivity Level) indicates moisture absorption characteristics. REF3325 variants have MSL 2 (1 Year), requiring storage in controlled humidity conditions. ADR381ARTZ and MAX6025AEUR+T have MSL 1 (Unlimited), allowing indefinite storage without moisture control, reducing handling and storage costs.

Q: Which substitute offers the best inventory availability?

A: ADR381ARTZ-REEL7 has the highest inventory with 32,533 units in stock, followed by REF3325AIDBZR with 35,400 units and MAX6025AEUR+T with 25,200 units.