REF5025IDR Equivalent & Substitute Parts

Part Overview

The REF5025IDR is a Series Voltage Reference IC manufactured by Texas Instruments, delivering a fixed 2.5V output with ±0.05% tolerance. This precision voltage reference operates across a 2.7V to 18V input range and supplies up to 10 mA output current. The device is housed in an 8-SOIC surface mount package and maintains active product status with full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, inventory management, or supply chain optimization.

Substiute Parts

REF5025IDR

Texas InstrumentsIn Stock: 16663REF5025IDR Datasheet

Current PartRFQ

ADR03ARZ

Analog Devices Inc.In Stock: 1452ADR03ARZ Datasheet

MFR RecommendedRFQ

ADR03ARZ-REEL7

Analog Devices Inc.In Stock: 16299ADR03ARZ-REEL7 Datasheet

MFR RecommendedRFQ

ADR03BRZ

Analog Devices Inc.In Stock: 6181ADR03BRZ Datasheet

MFR RecommendedRFQ

ADR03BRZ-REEL7

Analog Devices Inc.In Stock: 6815ADR03BRZ-REEL7 Datasheet

MFR RecommendedRFQ

MAX873AESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1836MAX873AESA+ Datasheet

MFR RecommendedRFQ

MAX873AESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2813MAX873AESA+T Datasheet

MFR RecommendedRFQ

MAX873BESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2498MAX873BESA+ Datasheet

MFR RecommendedRFQ

MAX873BESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 4519MAX873BESA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the REF5025IDR is determined by the following critical parameters:

• Output Voltage: Must be 2.5V fixed
• Output Current Capability: Minimum 10 mA
• Package Type: 8-SOIC form factor with 0.154" (3.90mm) width
• Mounting Technology: Surface mount configuration
• Operating Temperature Range: Must encompass -40°C to 125°C
• Input Voltage Range: Must accommodate 2.7V to 18V minimum
• Regulatory Compliance: RoHS3 compliance required

Substitute parts are grouped by tolerance specification, as this parameter directly affects circuit accuracy requirements while maintaining identical mechanical and electrical interfaces.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and full RoHS3 compliance, ensuring regulatory alignment with the REF5025IDR. Selection among substitutes depends on application-specific tolerance and temperature requirements:

ADR03 Series (Analog Devices Inc.) provides extended input voltage range (4.5V to 36V) compared to the REF5025IDR (2.7V to 18V). The ADR03ARZ and ADR03ARZ-REEL7 variants offer ±0.2% tolerance with 10 ppm/°C temperature coefficient. The ADR03BRZ and ADR03BRZ-REEL7 variants deliver ±0.1% tolerance with 3 ppm/°C temperature coefficient, matching the REF5025IDR's temperature stability. Packaging options include Tube (ARZ, BRZ) and Cut Tape with Digi-Reel (REEL7 variants).

MAX873 Series (Analog Devices Inc./Maxim Integrated) operates within the 4.5V to 18V input range and supports operating temperatures to 85°C maximum, limiting use in applications requiring full -40°C to 125°C operation. The MAX873AESA+ and MAX873AESA+T variants provide ±0.06% tolerance with 7 ppm/°C temperature coefficient. The MAX873BESA+ and MAX873BESA+T variants offer ±0.1% tolerance with 20 ppm/°C temperature coefficient. Packaging includes Tube (AESA+, BESA+) and Tape & Reel (AESA+T, BESA+T) options.

Frequently Asked Questions (FAQ)

Q: Can ADR03ARZ substitute for REF5025IDR in all applications?

A: ADR03ARZ is mechanically and functionally compatible, sharing the 8-SOIC package and 2.5V fixed output at 10 mA. However, its ±0.2% tolerance is wider than the REF5025IDR's ±0.05%, and its 10 ppm/°C temperature coefficient exceeds the REF5025IDR's 3 ppm/°C specification. Use ADR03ARZ only where application tolerance budgets accommodate these differences.

Q: What is the difference between ADR03BRZ and ADR03BRZ-REEL7?

A: Both parts are electrically identical with ±0.1% tolerance and 3 ppm/°C temperature coefficient. The primary difference is packaging: ADR03BRZ ships in Tube format, while ADR03BRZ-REEL7 is supplied on Cut Tape with Digi-Reel. Select based on assembly process requirements and inventory handling procedures.

Q: Why do MAX873 parts have a lower maximum operating temperature?

A: MAX873 series devices are specified to -40°C to 85°C, whereas REF5025IDR and ADR03 series extend to 125°C. Applications requiring operation above 85°C must use REF5025IDR, ADR03ARZ, ADR03ARZ-REEL7, ADR03BRZ, or ADR03BRZ-REEL7.

Q: Is the extended input voltage range of ADR03 series beneficial?

A: ADR03 series accepts 4.5V to 36V input, compared to REF5025IDR's 2.7V to 18V range. The extended upper limit provides design flexibility for higher voltage supply rails. However, the lower 4.5V minimum input (versus 2.7V) may restrict use in low-voltage applications.

Q: Which substitute offers the closest performance match to REF5025IDR?

A: ADR03BRZ and ADR03BRZ-REEL7 provide the closest electrical match, with identical ±0.1% tolerance and 3 ppm/°C temperature coefficient. Both support the full -40°C to 125°C operating range. Selection between these two depends on packaging preference: Tube or Cut Tape with Digi-Reel.