MAX4173FESA-T Equivalent & Substitute Parts

Part Overview

The MAX4173FESA-T is a current sense amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for single-circuit current sensing applications in 8-SOIC surface mount packaging. This component operates across a wide supply voltage range of 3 V to 28 V and is suitable for systems requiring precision current measurement with low input offset voltage.

The MAX4173FESA-T is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance of systems utilizing this component.

Substiute Parts

MAX4173FESA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1152MAX4173FESA-T Datasheet

Current PartRFQ

MAX4173FESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2923MAX4173FESA+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4173FESA-T is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Amplifier type classification as current sense amplifier
• Single circuit configuration
• Bandwidth specification of 1.4 MHz
• Input bias current of 700 µA
• Input offset voltage of 300 µV
• Supply current of 420 µA
• Supply voltage range spanning 3 V to 28 V
• Operating temperature range of -40°C to 85°C

Mechanical Equivalence Criteria:

• 8-SOIC surface mount package with 0.154" (3.90mm) width
• Pin-compatible footprint

Compliance Equivalence Criteria:

• ROHS3 compliance
• MSL rating of 1 (Unlimited)

The substitute part MAX4173FESA+T meets all electrical, mechanical, and compliance requirements for direct substitution with the main part number MAX4173FESA-T.

Parameter Comparison

Engineering Selection Recommendations

The MAX4173FESA+T is a direct functional equivalent to the MAX4173FESA-T. Both parts share identical electrical specifications, mechanical packaging, and compliance certifications. The primary distinction is product status: the main part is classified as obsolete, while the substitute is active.

For new designs or ongoing production requiring current sense amplification in the specified parameter range, the MAX4173FESA+T is the appropriate selection. This part maintains full compatibility with existing PCB layouts and circuit designs developed for the MAX4173FESA-T.

Both parts are manufactured by the same supplier (Analog Devices Inc./Maxim Integrated) and carry ROHS3 compliance and MSL 1 ratings, ensuring environmental and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can MAX4173FESA+T replace MAX4173FESA-T in existing designs?

A: Yes. The MAX4173FESA+T is electrically and mechanically equivalent to the MAX4173FESA-T. All electrical parameters, supply voltage range, operating temperature range, and 8-SOIC package specifications are identical. Direct substitution is supported without circuit modification.

Q: What is the difference between MAX4173FESA-T and MAX4173FESA+T?

A: The parts are functionally identical. The difference lies in product status and packaging format. MAX4173FESA-T is obsolete; MAX4173FESA+T is active. The suffix notation (+T versus -T) reflects packaging and tape/reel configuration differences, not electrical performance.

Q: Are both parts pin-compatible?

A: Yes. Both parts use the 8-SOIC package with 0.154" (3.90mm) width. Pin assignments and footprints are identical, enabling direct PCB substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both MAX4173FESA-T and MAX4173FESA+T are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental requirements are equivalent.

Q: What is the bandwidth specification for these parts?

A: Both parts have a -3dB bandwidth of 1.4 MHz, suitable for current sensing applications requiring moderate frequency response.

Q: What supply voltage range do these parts support?

A: Both parts operate across a supply voltage range of 3 V to 28 V, accommodating diverse power supply configurations in industrial and automotive applications.