MAX873ACSA Equivalent & Substitute Parts

Part Overview

The MAX873ACSA is a Series Voltage Reference IC manufactured by Analog Devices Inc./Maxim Integrated, designed to provide a fixed 2.5V output with ±0.06% tolerance. This component operates as a precision voltage reference for analog and mixed-signal applications requiring stable reference voltages across industrial temperature ranges. The MAX873ACSA is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production support.

Substiute Parts

MAX873ACSA

Analog Devices Inc./Maxim IntegratedIn Stock: 2274MAX873ACSA Datasheet

Current PartRFQ

MAX873AESA+

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX873ACSA is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 2.5V
• Output current capability of 10 mA
• Tolerance specification of ±0.06%
• Temperature coefficient of 7 ppm/°C
• Input voltage range of 4.5V ~ 18V
• Operating temperature range of -40°C ~ 85°C
• 8-SOIC surface mount package with 0.154" (3.90mm) width
• Series reference type with fixed output configuration

The MAX873AESA+ meets all these electrical and mechanical parameters while maintaining active product status and full compliance certifications. Substitution is valid only when all specified parameters align with application requirements.

Parameter Comparison

Engineering Selection Recommendations

The MAX873AESA+ is the direct parametric equivalent for the obsolete MAX873ACSA. Both components share identical electrical specifications and mechanical packaging. The primary distinction is product status: the MAX873ACSA is obsolete while the MAX873AESA+ maintains active status from the manufacturer.

For new designs and production applications, the MAX873AESA+ is the appropriate selection. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The packaging difference (tube for MAX873AESA+ versus unspecified for MAX873ACSA) does not affect electrical performance or PCB integration.

Frequently Asked Questions (FAQ)

Q: Can MAX873AESA+ directly replace MAX873ACSA in existing designs?

A: Yes. The MAX873AESA+ is a parametric equivalent with identical electrical and mechanical specifications. No circuit modifications are required for substitution.

Q: What is the significance of the product status difference?

A: The MAX873ACSA is classified as obsolete, indicating discontinued manufacturing and limited availability. The MAX873AESA+ is active, ensuring ongoing supply and manufacturer support for new production.

Q: Are there packaging compatibility concerns?

A: Both parts use the 8-SOIC package with 0.154" (3.90mm) width. PCB footprints and assembly processes remain unchanged between the two parts.

Q: Do compliance certifications differ between these parts?

A: No. Both the MAX873ACSA and MAX873AESA+ maintain identical ROHS3 compliance, REACH unaffected status, and Moisture Sensitivity Level 1 (Unlimited) ratings.

Q: What parameters must remain constant for substitution validity?

A: The 2.5V fixed output, ±0.06% tolerance, 10 mA output current, 7 ppm/°C temperature coefficient, 4.5V ~ 18V input range, and -40°C ~ 85°C operating temperature must all be maintained for the substitute part to function equivalently in the application.