AFE4491ZRCT Equivalent & Substitute Parts

Part Overview

The AFE4491ZRCT 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) in a 103-NFBGA (9x6) ball grid array package. The AFE4491ZRCT is currently listed with obsolete product status, which necessitates identification of equivalent substitute components for ongoing design support and procurement requirements. Active alternative part numbers from the same manufacturer provide functional continuity for applications requiring this analog front-end architecture.

Substiute Parts

AFE4491ZRCT

Texas InstrumentsIn Stock: 1723AFE4491ZRCT Datasheet

Current PartRFQ

AFE4491NMAT

Texas InstrumentsIn Stock: 988AFE4491NMAT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AFE4491ZRCT is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Manufacturer: Texas Instruments
• Package / Case: 103-VFBGA
• Supplier Device Package: 103-NFBGA (9x6)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 3 (168 Hours)
• ECCN Classification: EAR99
• HTSUS Code: 8542.39.0001

The AFE4491NMAT qualifies as a direct substitute based on identical matching across all critical parameters. The primary distinction is product status: AFE4491ZRCT carries obsolete designation, while AFE4491NMAT maintains active product status. Both components share the same base product number (AFE4491) and identical package specifications, ensuring mechanical and electrical compatibility in surface-mount applications.

Parameter Comparison

Engineering Selection Recommendations

The AFE4491NMAT serves as the direct substitute for the obsolete AFE4491ZRCT in data acquisition applications. Selection of AFE4491NMAT is supported by the following engineering criteria:

Product Status Alignment: AFE4491NMAT maintains active product status with Texas Instruments, ensuring continued availability and manufacturing support. The obsolete designation of AFE4491ZRCT creates supply chain risk and limits access to new inventory.

Compliance Equivalence: Both components maintain identical ROHS3 compliance and EAR99 export classification. AFE4491NMAT includes explicit REACH Unaffected designation, providing additional regulatory documentation for supply chain compliance.

Package and Mechanical Compatibility: Identical 103-VFBGA package specifications and 103-NFBGA (9x6) supplier device packages ensure direct mechanical compatibility in existing PCB layouts. Surface-mount mounting type and MSL 3 (168 Hours) moisture sensitivity specifications are identical, eliminating requalification requirements for assembly processes.

Functional Continuity: Both components share the base product number AFE4491 and identical functional classification as channel analog front-end integrated circuits, confirming functional equivalence for data acquisition system designs.

Frequently Asked Questions (FAQ)

Q: Can AFE4491NMAT be used as a direct replacement for AFE4491ZRCT in existing designs?

A: Yes. AFE4491NMAT is a direct substitute. Both components share identical package specifications (103-VFBGA, 103-NFBGA 9x6), mounting type (surface mount), and compliance certifications (ROHS3, EAR99). No PCB layout modifications or assembly process changes are required.

Q: What is the primary reason for substituting AFE4491ZRCT?

A: AFE4491ZRCT carries obsolete product status, which restricts new inventory availability and manufacturing support from Texas Instruments. AFE4491NMAT maintains active status, ensuring reliable procurement and continued technical support.

Q: Are the moisture sensitivity levels identical between these components?

A: Yes. Both AFE4491ZRCT and AFE4491NMAT specify MSL 3 (168 Hours) moisture sensitivity level. Storage, handling, and reflow processes remain unchanged between components.

Q: Do these components have different regulatory compliance profiles?

A: Both components are ROHS3 compliant and classified as EAR99 for export purposes. AFE4491NMAT includes explicit REACH Unaffected documentation. No additional regulatory approvals are required for substitution.

Q: Is the 103-NFBGA (9x6) package specification identical for both parts?

A: Yes. Both components use the identical 103-NFBGA (9x6) ball grid array package with 103-VFBGA case designation. Mechanical compatibility is complete.

Q: What is the base product number for these components?

A: AFE4491 is the base product number for both the main part and substitute. AFE4491ZRCT and AFE4491NMAT are variant designations of the same core product family.