MAX4373HESA Equivalent & Substitute Parts

Part Overview

The MAX4373HESA is a linear amplifier, comparator, and reference IC manufactured by Analog Devices Inc./Maxim Integrated, designed for current sensing and power management applications. This device is packaged in an 8-SOIC surface mount configuration with a 3.90mm width.

The MAX4373HESA carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for systems utilizing this component.

Substiute Parts

MAX4373HESA

Analog Devices Inc./Maxim IntegratedIn Stock: 2260MAX4373HESA Datasheet

Current PartRFQ

MAX4373HESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3209MAX4373HESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4373HESA is determined by the following critical parameters:

Functional Equivalence: Identical base product number (MAX4373) ensures matching die, pinout, and electrical characteristics.

Package Compatibility: Identical package specification (8-SOIC, 0.154", 3.90mm Width) ensures mechanical and thermal compatibility with existing PCB layouts and assembly processes.

Application Alignment: Identical application classification (Current Sensing, Power Management) confirms suitability for the same system requirements.

Environmental & Regulatory Compliance: Matching MSL rating (1 - Unlimited), REACH status (REACH Unaffected), and ECCN classification (EAR99) ensure compatibility with supply chain and regulatory requirements.

The substitute part MAX4373HESA+ meets all these criteria and is therefore a direct functional and mechanical equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MAX4373HESA+

The MAX4373HESA+ is the direct substitute for the obsolete MAX4373HESA. Both parts share identical electrical specifications, pinout, package dimensions, and application suitability. The MAX4373HESA+ carries an active product status, ensuring long-term availability and supply chain continuity.

Compliance Advantage: The MAX4373HESA+ is ROHS3 compliant, whereas the original MAX4373HESA is RoHS non-compliant. For new designs or systems subject to RoHS regulations, the MAX4373HESA+ is the appropriate selection. Both parts maintain REACH Unaffected status and EAR99 export classification.

Packaging Consideration: The MAX4373HESA+ is supplied in tube packaging, which is standard for active production components. The original part's packaging specification was not provided.

For applications currently using the MAX4373HESA, direct substitution with MAX4373HESA+ is electrically and mechanically valid without design modification.

Frequently Asked Questions (FAQ)

Q: Can MAX4373HESA+ be used as a direct replacement for MAX4373HESA?

A: Yes. Both parts share identical base product number (MAX4373), package specification (8-SOIC, 0.154", 3.90mm Width), pinout, and application classification (Current Sensing, Power Management). No design changes are required for substitution.

Q: What is the primary difference between MAX4373HESA and MAX4373HESA+?

A: The MAX4373HESA+ is the active production variant with ROHS3 compliance, while the MAX4373HESA is obsolete and RoHS non-compliant. The MAX4373HESA+ is supplied in tube packaging. Electrical and mechanical specifications are identical.

Q: Are there any package compatibility concerns when switching from MAX4373HESA to MAX4373HESA+?

A: No. Both parts use the identical 8-SOIC package with 0.154" width (3.90mm). PCB footprints, assembly processes, and thermal characteristics remain unchanged.

Q: Does the RoHS3 compliance of MAX4373HESA+ affect electrical performance?

A: No. RoHS3 compliance relates to material composition and environmental standards, not electrical function. The MAX4373HESA+ maintains identical electrical characteristics and performance specifications as the MAX4373HESA.

Q: Is the MAX4373HESA+ suitable for new designs?

A: Yes. The MAX4373HESA+ carries active product status and is the recommended choice for new designs requiring current sensing and power management amplifier, comparator, and reference functionality in an 8-SOIC package.

Q: What is the MSL rating for both parts?

A: Both MAX4373HESA and MAX4373HESA+ have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.