Equivalent & Substitute Parts for 98-0477PBF

Part Overview

The 98-0477PBF is a Class D audio driver amplifier IC manufactured by Infineon Technologies in a 16-SOIC package. This component is classified as obsolete and is no longer in active production. Due to its obsolete status, sourcing original units becomes increasingly difficult as existing inventory depletes. Identifying qualified substitute components ensures design continuity and maintains system functionality for applications requiring Class D audio amplification.

Substiute Parts

98-0477PBF

Infineon TechnologiesIn Stock: 75498-0477PBF Datasheet

Current PartRFQ

IRS20957STRPBF

Infineon TechnologiesIn Stock: 41132IRS20957STRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 98-0477PBF is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 16-SOIC surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Functional Classification: The substitute must be classified as a Class D amplifier IC to maintain equivalent audio driver functionality.

Manufacturer Consistency: Infineon Technologies manufactures both the original and substitute part, ensuring design philosophy and pin configuration alignment.

Electrical Characteristics: The substitute operates within compatible voltage supply ranges and maintains equivalent amplification characteristics for audio applications.

The IRS20957STRPBF meets all substitution criteria as an active, production-status Class D amplifier from Infineon Technologies in the same 16-SOIC package.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: IRS20957STRPBF

The IRS20957STRPBF is the qualified substitute for the obsolete 98-0477PBF based on the following engineering criteria:

Product Status Alignment: The IRS20957STRPBF maintains active production status with Infineon Technologies, ensuring long-term availability and supply chain stability compared to the obsolete 98-0477PBF.

Package Equivalence: Both components utilize the 16-SOIC package with identical mechanical dimensions (0.154" width, 3.90mm), enabling direct PCB layout compatibility without redesign.

Functional Equivalence: Both parts are Class D amplifier ICs from Infineon Technologies, maintaining equivalent audio driver functionality for mono audio applications.

Compliance Status: The IRS20957STRPBF is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute's MSL rating of 2 (1 Year) requires standard moisture control during storage and handling, consistent with industry practices for surface mount components.

Supply Availability: The IRS20957STRPBF has significantly higher inventory availability (41,090 pieces in stock) compared to the obsolete 98-0477PBF, reducing procurement risk and lead times.

Frequently Asked Questions (FAQ)

Q: Can the IRS20957STRPBF directly replace the 98-0477PBF without PCB modifications?

A: Yes. Both components share identical 16-SOIC package specifications with matching pin counts and mechanical dimensions. Direct substitution on existing PCB layouts is possible without redesign, provided pin assignments are verified against the respective datasheets.

Q: What is the difference in Moisture Sensitivity Level between these parts?

A: The 98-0477PBF has MSL 1 (Unlimited), while the IRS20957STRPBF has MSL 2 (1 Year). MSL 2 requires that the component be used within one year of the moisture barrier bag opening date. Standard moisture control procedures during storage and assembly are required for the substitute.

Q: Why is the 98-0477PBF classified as obsolete?

A: The 98-0477PBF is no longer manufactured by Infineon Technologies. Obsolete status indicates the product has reached end-of-life and is no longer supported for new designs. Existing inventory is limited and will eventually deplete.

Q: Are there electrical performance differences between the two parts?

A: Both components are Class D amplifier ICs designed for audio driver applications. The IRS20957STRPBF is specified as a 1-Channel (Mono) Class D amplifier with supply voltage range 10V to 15V and includes short-circuit protection and shutdown features. Detailed electrical performance specifications should be verified against the respective component datasheets for specific application requirements.

Q: What is the supply voltage range for the IRS20957STRPBF?

A: The IRS20957STRPBF operates with a supply voltage range of 10V to 15V, suitable for standard audio amplifier applications.

Q: Is the IRS20957STRPBF RoHS compliant?

A: Yes. The IRS20957STRPBF is RoHS3 compliant, meeting current environmental and hazardous substance restrictions.