MAX951EUA Equivalent & Substitute Parts

Part Overview

The MAX951EUA is a linear amplifier, comparator, and reference integrated circuit designed for smart card applications. Manufactured by Analog Devices Inc./Maxim Integrated, this device integrates multiple analog functions in a compact 8-uMAX/uSOP surface mount package. The MAX951EUA is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

MAX951EUA

Analog Devices Inc./Maxim IntegratedIn Stock: 2154MAX951EUA Datasheet

Current PartRFQ

MAX951EUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2307MAX951EUA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX951EUA is determined by strict alignment of the following parameters:

Critical Substitution Criteria:

• Base product number (MAX951 series)
• Package type and dimensions (8-TSSOP, 8-MSOP, 0.118" × 3.00mm)
• Supplier device package (8-uMAX/uSOP)
• Functional classification (Amplifier, Comparator, Reference)
• Surface mount mounting type
• RoHS3 compliance
• Moisture sensitivity level (MSL 1)
• REACH unaffected status

The MAX951EUA+ qualifies as a direct equivalent substitute based on identical alignment across all critical parameters. The primary distinction is product status: MAX951EUA is obsolete, while MAX951EUA+ is active, and packaging format differs (tube versus unspecified for the main part).

Parameter Comparison

Engineering Selection Recommendations

The MAX951EUA+ is the direct equivalent substitute for the MAX951EUA. Selection of MAX951EUA+ is supported by:

• Identical base product number (MAX951) and functional classification
• Matching package specifications (8-TSSOP, 8-MSOP, 0.118" × 3.00mm width)
• Identical electrical and mechanical interface parameters
• Active product status, ensuring ongoing availability and manufacturing support
• Full compliance with RoHS3 and REACH requirements
• Equivalent moisture sensitivity rating (MSL 1)

The transition from MAX951EUA (obsolete) to MAX951EUA+ (active) presents no functional or mechanical incompatibility. Both parts share identical pinout, package footprint, and application suitability for smart card circuits.

Frequently Asked Questions (FAQ)

Q: Can MAX951EUA+ be used as a direct replacement for MAX951EUA in existing designs?

A: Yes. Both parts share identical package dimensions (8-TSSOP, 8-MSOP, 0.118" × 3.00mm), pinout configuration, and functional classification. No circuit modifications or PCB layout changes are required.

Q: What is the primary reason for substitution?

A: The MAX951EUA is classified as obsolete. The MAX951EUA+ is the active equivalent, ensuring continued component availability and manufacturing support.

Q: Are there compliance differences between MAX951EUA and MAX951EUA+?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity ratings (MSL 1).

Q: Does packaging format affect electrical performance?

A: No. The packaging format difference (tube for MAX951EUA+) is a logistics and handling specification only. Electrical and mechanical characteristics remain identical.

Q: Are both parts suitable for smart card applications?

A: Yes. Both MAX951EUA and MAX951EUA+ are specified for smart card applications and maintain identical functional parameters for this use case.

Q: What parameters must match for substitution eligibility?

A: Base product number, package type and dimensions, supplier device package designation, mounting type, functional classification, and compliance certifications must all align. All these parameters are identical between MAX951EUA and MAX951EUA+.