IRS2983STRPBF Equivalent & Substitute Parts

Part Overview

The IRS2983STRPBF is an LED Driver IC manufactured by Infineon Technologies, designed for AC DC offline switcher applications with Flyback, Step-Down (Buck), and Step-Up (Boost) topologies. This component operates with a single output and supports 1 output channel in an 8-SOIC surface mount package.

The IRS2983STRPBF is classified as Obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for legacy systems utilizing this component.

Substiute Parts

IRS2983STRPBF

Infineon TechnologiesIn Stock: 4468IRS2983STRPBF Datasheet

Current PartRFQ

IRS2982STRPBF

Infineon TechnologiesIn Stock: 5245IRS2982STRPBF Datasheet

MFR RecommendedRFQ

LNK404EG

Power IntegrationsIn Stock: 59240LNK404EG Datasheet

MFR RecommendedRFQ

UCC28811DR

Texas InstrumentsIn Stock: 35727UCC28811DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IRS2983STRPBF is determined by the following critical parameters:

• Package / Case: 8-SOIC (0.154", 3.90mm Width) — mechanical and electrical interface compatibility
• Type: AC DC Offline Switcher — functional classification
• Number of Outputs: 1 — output channel count
• Voltage - Supply Range: 11.5V to 18V — input voltage compatibility
• Mounting Type: Surface Mount — assembly process compatibility

The substitute parts identified below meet these core requirements and are available as active alternatives to the obsolete IRS2983STRPBF.

Parameter Comparison

Engineering Selection Recommendations

IRS2982STRPBF — Manufacturer-recommended substitute from Infineon Technologies. Maintains identical package (8-SOIC), supply voltage range (11.5V–18V), and operating temperature range (-25°C ~ 125°C). Product status is Active with ROHS3 compliance. This part provides the closest functional alignment with the obsolete IRS2983STRPBF.

UCC28811DR — Active substitute from Texas Instruments. Maintains 8-SOIC package and surface mount compatibility. Supports identical maximum supply voltage (18V) and topology flexibility (Flyback, Step-Down, Step-Up). Product status is Active with ROHS3 compliance and improved moisture sensitivity (MSL 1). Operating temperature range is -40°C ~ 105°C (TA).

LNK404EG — Active substitute from Power Integrations. Supports AC DC offline switcher topology with Flyback configuration. Product status is Active with RoHS compliance and superior moisture sensitivity (MSL 1). Note: This part uses Through Hole mounting (eSIP-7C package) and operates across a wider supply voltage range (36V–725V), requiring PCB layout and assembly process modifications.

Frequently Asked Questions (FAQ)

Q: Can IRS2982STRPBF directly replace IRS2983STRPBF without PCB modifications?

A: Yes. The IRS2982STRPBF maintains identical package geometry (8-SOIC), supply voltage range (11.5V–18V), and operating temperature specifications (-25°C ~ 125°C). Pin-to-pin compatibility and functional equivalence support direct substitution on existing PCB designs.

Q: What are the key differences between IRS2982STRPBF and UCC28811DR?

A: Both parts use 8-SOIC surface mount packages and support identical maximum supply voltage (18V). The UCC28811DR offers improved moisture sensitivity (MSL 1 vs. MSL 2) and extended operating temperature range (-40°C ~ 105°C). The IRS2982STRPBF maintains closer thermal specifications to the original IRS2983STRPBF (-25°C ~ 125°C).

Q: Why does LNK404EG require PCB modifications?

A: The LNK404EG uses a Through Hole eSIP-7C package instead of surface mount 8-SOIC. This requires different PCB footprint design, assembly process changes, and board layout modifications. Additionally, its supply voltage range (36V–725V) differs significantly from the IRS2983STRPBF (11.5V–18V), necessitating circuit design review.

Q: Are all substitute parts RoHS compliant?

A: IRS2982STRPBF and UCC28811DR are ROHS3 compliant. LNK404EG is RoHS compliant. The original IRS2983STRPBF RoHS status is not specified in available documentation.

Q: Which substitute offers the best long-term availability?

A: All three substitute parts carry Active product status. IRS2982STRPBF is the manufacturer-recommended option from Infineon Technologies, providing continuity within the same product family and supplier ecosystem.