REF5050AIDR Series Voltage Reference IC Equivalent & Substitute Parts

Part Overview

The REF5050AIDR is a Series Voltage Reference IC manufactured by Texas Instruments, designed to provide a fixed 5V output with ±0.1% tolerance. This Surface Mount device operates across the industrial temperature range of -40°C to 125°C and is classified as Active product status. The REF5050AIDR is essential in precision analog circuits requiring stable voltage references with low noise characteristics. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained within the specified parameter ranges.

Substiute Parts

REF5050AIDR

Texas InstrumentsIn Stock: 50236REF5050AIDR Datasheet

Current PartRFQ

REF5050AQDRQ1

Texas InstrumentsIn Stock: 1923REF5050AQDRQ1 Datasheet

Parametric EquivalentRFQ

ADR02WARZ-REEL7

Analog Devices Inc.In Stock: 1192ADR02WARZ-REEL7 Datasheet

MFR RecommendedRFQ

MAX875AESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1516MAX875AESA+ Datasheet

MFR RecommendedRFQ

MAX875BESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3651MAX875BESA+ Datasheet

MFR RecommendedRFQ

MAX875BESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2134MAX875BESA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the REF5050AIDR are qualified based on the following electrical and mechanical criteria:

Critical Parameters for Substitution:

• Output Voltage: 5V (fixed)
• Output Current: 10 mA minimum
• Package Type: 8-SOIC form factor
• Mounting Type: Surface Mount
• Tolerance: ±0.1% or better
• Operating Temperature Range: -40°C to 125°C minimum
• RoHS3 Compliance

Substitution Categories:

Parametric Equivalent (Identical Specifications): REF5050AQDRQ1 maintains all electrical parameters identical to the REF5050AIDR with the addition of Automotive grade qualification (AEC-Q100).

Manufacturer Recommended Equivalents (Functional Compatibility): ADR02WARZ-REEL7, MAX875AESA+, MAX875BESA+, and MAX875BESA+T meet the core functional requirements of 5V fixed output at 10 mA with 8-SOIC packaging. These parts demonstrate electrical performance within acceptable ranges for Series Voltage Reference applications, though individual parameter variations exist in temperature coefficient, noise characteristics, and input voltage range.

Parameter Comparison

Engineering Selection Recommendations

REF5050AQDRQ1: Direct parametric equivalent with identical electrical specifications. Recommended for applications requiring Automotive grade qualification (AEC-Q100) while maintaining full compatibility with REF5050AIDR designs. Suitable for automotive and industrial environments with extended reliability requirements.

ADR02WARZ-REEL7: Qualified substitute for applications where input voltage range extension to 26V is beneficial. Automotive grade qualification available. Lower supply current (1mA vs 1.2mA) and improved noise performance (10µVp-p vs 15µVpp/V) support low-power and precision applications. Operating temperature range matches REF5050AIDR specifications.

MAX875AESA+ and MAX875BESA+ Series: Suitable for applications prioritizing lower supply current consumption (700µA) and improved noise characteristics. MAX875AESA+ offers superior tolerance (±0.04%) and lower temperature coefficient (7ppm/°C). MAX875BESA+ and MAX875BESA+T provide ±0.06% tolerance. Operating temperature range limited to -40°C to 85°C; not suitable for applications requiring full 125°C operation. Tube packaging available for MAX875AESA+ and MAX875BESA+.

All substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and environmental regulatory conformance.

Frequently Asked Questions (FAQ)

Q: Can REF5050AQDRQ1 be used as a direct replacement for REF5050AIDR?

A: Yes. REF5050AQDRQ1 is a parametric equivalent with identical electrical specifications. The primary difference is Automotive grade qualification (AEC-Q100), which adds reliability assurance for automotive applications without affecting standard industrial use.

Q: What is the key difference between REF5050AIDR and MAX875AESA+?

A: Both devices provide 5V fixed output at 10 mA in 8-SOIC packaging. MAX875AESA+ offers superior tolerance (±0.04% vs ±0.1%) and lower supply current (700µA vs 1.2mA). However, MAX875AESA+ operating temperature range is limited to -40°C to 85°C, while REF5050AIDR operates to 125°C. Select MAX875AESA+ for precision, low-power applications within the 85°C temperature limit.

Q: Is ADR02WARZ-REEL7 compatible with REF5050AIDR in existing designs?

A: ADR02WARZ-REEL7 is functionally compatible with identical 5V output, 10 mA current, and 8-SOIC packaging. Input voltage range extends to 26V (vs 18V maximum for REF5050AIDR), providing greater flexibility. Operating temperature range matches REF5050AIDR. Verify circuit input voltage requirements before substitution.

Q: Why do MAX875BESA+ and MAX875BESA+T have different temperature coefficients than REF5050AIDR?

A: MAX875BESA+ and MAX875BESA+T are specified with 20ppm/°C temperature coefficient compared to 8ppm/°C for REF5050AIDR. This represents a different device grade within the MAX875 family. Applications requiring temperature stability below 8ppm/°C should use REF5050AIDR or MAX875AESA+ (7ppm/°C).

Q: What packaging options are available for substitute parts?

A: REF5050AIDR and REF5050AQDRQ1 are supplied in Cut Tape (CT) and Digi-Reel® packaging. ADR02WARZ-REEL7 is supplied in Cut Tape and Digi-Reel®. MAX875AESA+ and MAX875BESA+ are supplied in Tube packaging. MAX875BESA+T packaging is not specified. Verify packaging compatibility with assembly requirements before procurement.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (REF5050AQDRQ1, ADR02WARZ-REEL7, MAX875AESA+, MAX875BESA+, MAX875BESA+T) are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements for industrial and commercial applications.