REF5025MDTEP Equivalent & Substitute Parts

Part Overview

The REF5025MDTEP is a series voltage reference IC manufactured by Texas Instruments, delivering a fixed 2.5V output with ±0.05% tolerance. This precision voltage reference is designed for applications requiring stable reference voltages in power management circuits. The device is currently in active production status with 18,400 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, design flexibility, or application-specific packaging needs.

Key Parameters

Parameter	REF5025MDTEP
Manufacturer	Texas Instruments
Output Voltage	2.5V Fixed
Output Current	10 mA
Tolerance	±0.05%
Temperature Coefficient	6.5 ppm/°C
Input Voltage Range	2.7V – 18V
Supply Current	1.25 mA
Operating Temperature	-55°C to 125°C
Package	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the REF5025MDTEP is determined by the following critical parameters:

Output Voltage: Must be fixed at 2.5V
Output Current Capability: Must support 10 mA minimum
Package Type: Must be 8-SOIC with identical 0.154" (3.90mm) width for PCB layout compatibility
Mounting Type: Must be Surface Mount
Reference Type: Must be Series voltage reference
Output Type: Must be Fixed

The MAX873 series from Analog Devices Inc./Maxim Integrated meets these core electrical and mechanical requirements. Variants differ in tolerance grade (±0.06% or ±0.1%), temperature coefficient, and packaging format (Tube or Tape & Reel), allowing selection based on application precision requirements and procurement method.

Parameter Comparison

Parameter	REF5025MDTEP	MAX873AESA+	MAX873AESA+T	MAX873BESA+	MAX873BESA+T
Manufacturer	Texas Instruments	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Output Voltage	2.5V Fixed	2.5V Fixed	2.5V Fixed	2.5V Fixed	2.5V Fixed
Output Current	10 mA	10 mA	10 mA	10 mA	10 mA
Tolerance	±0.05%	±0.06%	±0.06%	±0.1%	±0.1%
Temperature Coefficient	6.5 ppm/°C	7 ppm/°C	7 ppm/°C	20 ppm/°C	20 ppm/°C
Input Voltage Range	2.7V – 18V	4.5V – 18V	4.5V – 18V	4.5V – 18V	4.5V – 18V
Supply Current	1.25 mA	600 µA	600 µA	600 µA	600 µA
Operating Temperature	-55°C to 125°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Package	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)
Packaging Format	Cut Tape (CT) & Digi-Reel®	Tube	Tape & Reel (TR)	Tube	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts maintain active production status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with the REF5025MDTEP.

MAX873AESA+ and MAX873AESA+T provide the closest tolerance performance at ±0.06%, with temperature coefficient of 7 ppm/°C. These variants are suitable for applications where tolerance specification approaches that of the original part. MAX873AESA+ is supplied in Tube packaging, while MAX873AESA+T is supplied in Tape & Reel format for automated assembly processes.

MAX873BESA+ and MAX873BESA+T offer ±0.1% tolerance with 20 ppm/°C temperature coefficient. These variants are appropriate for applications with relaxed tolerance requirements. MAX873BESA+ is supplied in Tube packaging, while MAX873BESA+T is supplied in Tape & Reel format.

Key design considerations: The MAX873 series requires minimum input voltage of 4.5V compared to the REF5025MDTEP minimum of 2.7V. Operating temperature range is reduced to -40°C to 85°C versus -55°C to 125°C on the original part. Supply current consumption is lower at 600 µA versus 1.25 mA. MSL rating is improved to Level 1 (Unlimited) for all MAX873 variants.

Frequently Asked Questions (FAQ)

Q: Can MAX873AESA+ directly replace REF5025MDTEP in all applications?

A: Direct replacement is possible for applications where the input voltage remains above 4.5V and operating temperature stays within -40°C to 85°C. The ±0.06% tolerance and 7 ppm/°C temperature coefficient are acceptable for most precision reference applications. Applications requiring operation below 4.5V input or below -40°C require the original REF5025MDTEP.

Q: What is the difference between MAX873AESA+ and MAX873AESA+T?

A: Both parts are electrically identical with ±0.06% tolerance. The difference is packaging format: MAX873AESA+ is supplied in Tube packaging for manual or semi-automated assembly, while MAX873AESA+T is supplied in Tape & Reel format optimized for high-speed automated pick-and-place assembly.

Q: Should I use MAX873AESA+ or MAX873BESA+ for my design?

A: Selection depends on tolerance requirements. MAX873AESA+ (±0.06%) is recommended when tolerance specification is critical. MAX873BESA+ (±0.1%) is suitable for applications with relaxed tolerance budgets and offers lower cost. Both maintain identical 8-SOIC package compatibility.

Q: Are there any supply current differences I should consider?

A: Yes. The MAX873 series draws 600 µA supply current compared to 1.25 mA for the REF5025MDTEP. This lower current consumption may reduce power dissipation in battery-powered or low-power applications.

Q: What is MSL rating and why does it matter?

A: MSL (Moisture Sensitivity Level) indicates component sensitivity to moisture during storage and handling. The REF5025MDTEP is MSL Level 2 (1 Year shelf life), while all MAX873 variants are MSL Level 1 (Unlimited shelf life). Level 1 components offer superior storage stability and reduced risk of moisture-related failures during manufacturing.

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