R2A20134ASP#W5 LED Driver IC Equivalent & Substitute Parts

Part Overview

The R2A20134ASP#W5 is a linear LED driver IC manufactured by Renesas Electronics Corporation, designed for single-output lighting applications. This component operates within a supply voltage range of 8.5V to 24V and is housed in an 8-SOIC package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

R2A20134ASP#W5

Renesas Electronics CorporationIn Stock: 1045R2A20134ASP#W5 Datasheet

Current PartRFQ

R2A20134SP#W5

Renesas Electronics CorporationIn Stock: 1453R2A20134SP#W5 Datasheet

DirectRFQ

AL8400SE-7

Diodes IncorporatedIn Stock: 33434AL8400SE-7 Datasheet

SimilarRFQ

BCR320UE6327HTSA1

Infineon TechnologiesIn Stock: 1844BCR320UE6327HTSA1 Datasheet

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LP5522TMX/NOPB

Texas InstrumentsIn Stock: 3961LP5522TMX/NOPB Datasheet

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NCR402UH

Nexperia USA Inc.In Stock: 15896NCR402UH Datasheet

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TSCR400CX6 RFG

Taiwan Semiconductor CorporationIn Stock: 11712TSCR400CX6 RFG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the R2A20134ASP#W5 is determined by the following critical parameters:

• Supply Voltage Range: The substitute must operate within or encompass the 8.5V to 24V range
• Output Configuration: Single-output topology required
• Package Compatibility: Surface-mount packages with compatible pinout and thermal characteristics
• Internal Architecture: Linear driver topology without internal switching elements
• Regulatory Compliance: ROHS3 compliance and MSL rating of 1 or better
• Temperature Rating: Operating range of -40°C to 150°C preferred for thermal margin

The substitute parts identified below meet these criteria with varying degrees of parameter overlap. Direct substitutes maintain identical electrical specifications, while similar substitutes provide functional equivalence within specified application constraints.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute (Recommended Primary Choice): The R2A20134SP#W5 is the optimal replacement for the obsolete R2A20134ASP#W5. Both parts share identical electrical specifications, thermal ratings, and package geometry. The primary distinction is packaging format: R2A20134SP#W5 is supplied in Tape & Reel configuration with Active product status and higher inventory availability (1345 Pcs). This part requires no circuit redesign and maintains full compatibility with existing PCB layouts.

Alternative Substitutes (Application-Dependent): The AL8400SE-7, BCR320UE6327HTSA1, LP5522TMX/NOPB, and NCR402UH provide functional LED driver capability but introduce parameter deviations requiring design evaluation:

• AL8400SE-7 operates at reduced maximum supply voltage (18V vs. 24V) and lower temperature ceiling (-40°C to 125°C), limiting use in high-temperature environments.
• BCR320UE6327HTSA1 includes internal switching capability and automotive qualification (AEC-Q101), suitable for automotive lighting applications but with unspecified minimum supply voltage.
• LP5522TMX/NOPB is restricted to low-voltage applications (2.7V to 5.5V maximum) and narrow temperature range (-30°C to 85°C), incompatible with the original 8.5V to 24V specification.
• NCR402UH supports extended supply voltage (up to 40V) and automotive-grade operation but requires package redesign due to different pinout (6-TSOP vs. 8-SOIC).

Compliance Status: All identified substitutes maintain ROHS3 compliance and MSL rating of 1, ensuring regulatory and moisture-handling compatibility with the original component.

Frequently Asked Questions (FAQ)

Q: Can R2A20134SP#W5 be used as a direct replacement without PCB modification? A: Yes. R2A20134SP#W5 is electrically and mechanically identical to R2A20134ASP#W5. The only difference is packaging format (Tape & Reel vs. bulk). No circuit redesign is required.

Q: Why do some substitute parts have different supply voltage ranges? A: LED driver ICs are designed for specific application voltage domains. AL8400SE-7 targets lower-voltage signage applications (2.2V to 18V), while NCR402UH supports higher-voltage automotive systems (up to 40V). Selection depends on your circuit's actual operating voltage.

Q: Is package compatibility critical when selecting a substitute? A: Yes. The original R2A20134ASP#W5 uses an 8-SOIC package. Substitutes with different packages (such as SOT-353, SC-74, or DSBGA) require PCB redesign, including new footprints and potentially different thermal management. R2A20134SP#W5 maintains the 8-SOIC package and avoids this requirement.

Q: What does "Internal Switch(s): No" mean, and why does it matter? A: The R2A20134ASP#W5 is a linear driver without integrated switching elements. Substitutes with internal switches (BCR320UE6327HTSA1, LP5522TMX/NOPB, NCR402UH) use different control architectures and may require circuit topology changes.

Q: Are automotive-qualified substitutes suitable for non-automotive applications? A: Automotive-qualified parts (BCR320UE6327HTSA1, NCR402UH with AEC-Q101 certification) exceed standard reliability requirements and are fully compatible with non-automotive lighting applications. Their use introduces no compatibility issues.

Q: What is the significance of the -40°C to 150°C temperature rating? A: This rating indicates the component operates reliably across industrial and high-temperature environments. Substitutes with narrower ranges (such as LP5522TMX/NOPB at -30°C to 85°C) may fail in high-temperature applications. Verify your application's thermal requirements before selection.