AFE4491ZRCR Equivalent & Substitute Parts

Part Overview

The AFE4491ZRCR is an analog front-end integrated circuit manufactured by Texas Instruments, classified as a data acquisition component. This device functions as a channel AFE (Analog Front End) with a 103-pin NFBGA (9x6) ball grid array package configuration. The AFE4491ZRCR is currently designated as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure long-term component availability for new production and field replacements.

Substiute Parts

AFE4491ZRCR

Texas InstrumentsIn Stock: 865AFE4491ZRCR Datasheet

Current PartRFQ

AFE4491NMAR

Texas InstrumentsIn Stock: 971AFE4491NMAR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AFE4491ZRCR is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Identical package designation: 103-VFBGA with 103-NFBGA (9x6) supplier device package
• Identical mounting type: Surface Mount
• Identical functional classification: Data Acquisition / Analog Front End
• Identical RoHS compliance level: ROHS3 Compliant
• Identical moisture sensitivity rating: MSL 3 (168 Hours)
• Identical export classification: ECCN EAR99
• Identical tariff classification: HTSUS 8542.39.0001

The AFE4491NMAR qualifies as a direct substitute based on complete alignment across all specified parameters. The primary distinction is product status: AFE4491ZRCR is obsolete, while AFE4491NMAR maintains active production status.

Parameter Comparison

Engineering Selection Recommendations

The AFE4491NMAR is the direct equivalent substitute for the obsolete AFE4491ZRCR. Selection of AFE4491NMAR is supported by the following engineering criteria:

Product Status Alignment: AFE4491NMAR maintains active production status with Texas Instruments, ensuring continued availability and supply chain stability. The AFE4491ZRCR obsolescence status creates supply risk for ongoing production and field service applications.

Compliance Certification: Both parts maintain identical RoHS3 compliance and ROHS3 certification status, satisfying environmental and regulatory requirements for electronic component manufacturing and distribution.

Regulatory Classification: Both parts carry identical ECCN (EAR99) and HTSUS (8542.39.0001) designations, confirming equivalent export control and tariff treatment.

Package and Mounting Equivalence: Identical 103-VFBGA package designation and 103-NFBGA (9x6) supplier device package ensure direct PCB layout compatibility and assembly process compatibility without design modification.

Moisture Sensitivity Equivalence: Identical MSL 3 (168 Hours) rating ensures equivalent handling, storage, and reflow process requirements.

REACH Compliance: AFE4491NMAR carries explicit REACH Unaffected designation, providing additional regulatory assurance for European market applications.

Frequently Asked Questions (FAQ)

Q: Can AFE4491NMAR be used as a direct replacement for AFE4491ZRCR without PCB redesign?

A: Yes. Both parts share identical package designation (103-VFBGA), supplier device package (103-NFBGA 9x6), and mounting type (Surface Mount). No PCB layout modification is required.

Q: What is the primary reason for substituting AFE4491ZRCR with AFE4491NMAR?

A: AFE4491ZRCR is designated as obsolete, while AFE4491NMAR maintains active production status. This substitution ensures continued component availability and supply chain continuity.

Q: Are there any differences in RoHS compliance between these parts?

A: No. Both AFE4491ZRCR and AFE4491NMAR maintain identical ROHS3 compliance status.

Q: Do these parts have identical moisture sensitivity requirements?

A: Yes. Both parts carry MSL 3 (168 Hours) rating, requiring identical handling, storage, and reflow process protocols.

Q: Are export control classifications identical for both parts?

A: Yes. Both parts carry identical ECCN (EAR99) and HTSUS (8542.39.0001) designations.

Q: What is the significance of the base product number AFE4491?

A: The base product number AFE4491 identifies the core analog front-end device family. Both AFE4491ZRCR and AFE4491NMAR derive from this base product, confirming functional equivalence within the Texas Instruments data acquisition component portfolio.

Q: Does AFE4491NMAR carry REACH compliance certification?

A: Yes. AFE4491NMAR is designated as REACH Unaffected, providing explicit regulatory assurance for applications subject to REACH requirements.