Infineon 98-0503PBF LED Driver IC - Equivalent & Substitute Parts

Part Overview

The Infineon 98-0503PBF is an LED Driver IC with buck regulator topology designed for 200V applications in an 8-SOIC package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The part delivers LED output dimming control through integrated power management circuitry. Due to its obsolete status, sourcing equivalent or substitute components is necessary for new designs and legacy system maintenance.

Substiute Parts

98-0503PBF

Infineon TechnologiesIn Stock: 86698-0503PBF Datasheet

Current PartRFQ

IRS25411STRPBF

Infineon TechnologiesIn Stock: 30236IRS25411STRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The IRS25411STRPBF qualifies as a manufacturer-recommended substitute based on the following alignment criteria:

Functional Category Match: Both components operate within the Power Management (PMIC) category as LED driver controllers with buck (step-down) topology.

Package Compatibility: Both utilize 8-SOIC surface mount packaging, ensuring mechanical and electrical pin compatibility for direct board-level substitution.

Dimming Control: Both incorporate PWM (Pulse Width Modulation) dimming functionality for LED output control.

Regulatory Compliance: Both maintain REACH Unaffected status and EAR99 ECCN classification, satisfying export and environmental requirements.

Supply Voltage Range: The IRS25411STRPBF operates within 8V to 16.6V supply range, supporting the voltage requirements of LED driver applications.

Switching Frequency: The substitute operates at 500kHz, a standard frequency for buck converter LED driver topologies.

Parameter Comparison

Engineering Selection Recommendations

The IRS25411STRPBF is the manufacturer-recommended substitute for the obsolete 98-0503PBF. Selection of this alternative is supported by:

Product Status: The substitute maintains Active product status, ensuring long-term availability and continued manufacturer support, contrasting with the obsolete status of the original part.

Regulatory Compliance: Both components satisfy REACH and EAR99 requirements. The substitute additionally carries ROHS3 Compliant certification, meeting current environmental and hazardous substance restrictions.

Package Equivalence: Identical 8-SOIC packaging ensures direct mechanical and electrical compatibility without PCB redesign.

Functional Alignment: Matching buck topology, PWM dimming control, and surface mount configuration preserve circuit functionality and design intent.

Moisture Handling: While the substitute carries MSL 2 (1 Year) versus MSL 1 (Unlimited) for the original, this represents standard handling for active production components and does not preclude substitution when proper moisture control procedures are implemented.

Frequently Asked Questions (FAQ)

Q: Can the IRS25411STRPBF directly replace the 98-0503PBF without PCB modifications?

A: Yes. Both components use identical 8-SOIC packaging with matching pin configurations. Direct board-level substitution is possible without PCB layout changes.

Q: What is the primary reason for substituting the 98-0503PBF?

A: The 98-0503PBF is classified as obsolete. The IRS25411STRPBF is an active product with guaranteed long-term availability and manufacturer support.

Q: Are there compliance differences between the two parts?

A: Both maintain REACH Unaffected and EAR99 status. The IRS25411STRPBF additionally carries ROHS3 Compliant certification, meeting current environmental standards.

Q: How do the moisture sensitivity levels differ?

A: The 98-0503PBF carries MSL 1 (Unlimited), while the IRS25411STRPBF carries MSL 2 (1 Year). Standard moisture control procedures during storage and assembly mitigate this difference.

Q: What are the supply voltage specifications for the substitute?

A: The IRS25411STRPBF operates within 8V to 16.6V supply range, supporting typical LED driver application voltages.

Q: Is the switching frequency compatible with the original design?

A: The IRS25411STRPBF operates at 500kHz, a standard frequency for buck converter LED driver topologies. Circuit design validation is required to confirm compatibility with specific application requirements.

Q: What is the operating temperature range of the substitute?

A: The IRS25411STRPBF operates from -25°C to 125°C (junction temperature), covering standard industrial and consumer application ranges.