MAX4081FASA-T Equivalent & Substitute Parts

Part Overview

The MAX4081FASA-T is a current sense amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for precision current measurement applications. This linear amplifier integrates one sensing circuit in an 8-SOIC surface mount package and operates across a wide supply voltage range of 4.5 V to 76 V.

The MAX4081FASA-T is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for applications currently utilizing this component.

Substiute Parts

MAX4081FASA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 914MAX4081FASA-T Datasheet

Current PartRFQ

MAX4081FASA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3884MAX4081FASA+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4081FASA-T is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Amplifier Type: Current Sense
• Number of Circuits: 1
• -3dB Bandwidth: 150 kHz
• Current - Input Bias: 5 µA
• Voltage - Input Offset: 100 µV
• Current - Supply: 103 µA
• Voltage - Supply Span: 4.5 V to 76 V
• Operating Temperature Range: -40°C to 125°C

Mechanical & Packaging Specifications:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount

Compliance & Regulatory:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

Substitute parts must match all electrical parameters, maintain identical package geometry and mounting characteristics, and satisfy the same regulatory compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

The MAX4081FASA+T is a direct functional equivalent to the MAX4081FASA-T. Both parts share identical electrical specifications, package geometry, and regulatory compliance certifications.

Key Selection Factors:

Product Status: The MAX4081FASA-T is classified as obsolete, while the MAX4081FASA+T maintains active product status. For new designs and ongoing production, the MAX4081FASA+T is the appropriate selection to ensure long-term component availability and manufacturer support.

Regulatory Compliance: Both parts satisfy ROHS3 compliance, REACH unaffected status, and MSL Level 1 requirements. No compliance barriers exist for substitution.

Packaging Consideration: The primary difference between these parts is the packaging format. The MAX4081FASA-T is supplied in bulk packaging, while the MAX4081FASA+T is supplied in Tape & Reel (TR) format. This distinction affects handling, storage, and automated assembly processes but does not impact electrical performance or functional compatibility.

Supply Chain: The MAX4081FASA+T demonstrates significantly higher inventory availability (3800 Pcs) compared to the obsolete MAX4081FASA-T (888 Pcs), supporting reliable procurement for production requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX4081FASA+T replace MAX4081FASA-T in existing designs?

A: Yes. The MAX4081FASA+T is electrically and mechanically identical to the MAX4081FASA-T. All electrical parameters, operating ranges, and package specifications match exactly. Direct substitution is supported without design modification.

Q: What is the difference between the two part numbers?

A: The primary difference is packaging format. The MAX4081FASA-T uses bulk packaging, while the MAX4081FASA+T uses Tape & Reel (TR) format. The suffix "+T" indicates tape and reel packaging. Electrical performance is identical.

Q: Why is the MAX4081FASA-T classified as obsolete?

A: The MAX4081FASA-T has reached end-of-life status with the manufacturer. The MAX4081FASA+T remains in active production and is the recommended part for new applications and ongoing production support.

Q: Are there any compliance or regulatory differences?

A: No. Both parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL Level 1 ratings. No regulatory barriers exist for substitution.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Tape & Reel packaging is a handling and storage format used for automated assembly processes. It does not affect electrical characteristics, performance, or reliability of the component itself.

Q: What is the recommended action for designs currently using MAX4081FASA-T?

A: For new production runs and long-term supply chain planning, transition to MAX4081FASA+T. The active product status and higher inventory availability ensure reliable component sourcing and manufacturer support.