SPMWHT541MP5WAR0SD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAR0SD is a Samsung Semiconductor LM561B Plus white LED in 5630 surface mount package, rated for cool white 5000K color temperature. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. The part delivers 35lm at 65mA test current with 2.95V forward voltage and 120° viewing angle, suitable for general illumination applications requiring cool white spectral output.

Due to its discontinued design status, equivalent and parametrically compatible alternatives are necessary for ongoing production support, design revisions, and inventory management.

Substiute Parts

SPMWHT541MP5WAR0SD

Samsung Semiconductor, Inc.In Stock: 819SPMWHT541MP5WAR0SD Datasheet

Current PartRFQ

SPMWHT541MP5WAR0S5

Samsung Semiconductor, Inc.In Stock: 17963SPMWHT541MP5WAR0S5 Datasheet

SimilarRFQ

SPMWHT541ML5XAR0S0

Samsung Semiconductor, Inc.In Stock: 1023SPMWHT541ML5XAR0S0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XARKS0

Samsung Semiconductor, Inc.In Stock: 1223SPMWHT541ML5XARKS0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

Primary Compatibility Criteria:

• Color temperature: 5000K (cool white)
• Color Rendering Index: 80
• Package type: 4-SMD, Flat Leads (5630)
• Mounting: Surface Mount
• Physical dimensions: 5.00mm × 3.00mm × 0.80mm (max height)
• Test current: 65mA
• Maximum current rating: 180mA
• Viewing angle: 120°

Substitution Categories:

Direct Equivalent (Same Series): SPMWHT541MP5WAR0S5 maintains identical electrical and mechanical specifications while offering active product status and improved thermal performance (15°C/W vs. 16°C/W).

Parametric Equivalent (Different Series): SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0 belong to the LM561C series with identical color temperature, CRI, package, and mechanical dimensions. Forward voltage differs slightly (2.75V and 2.8V respectively vs. 2.95V), and thermal resistance is improved (12°C/W). These parts maintain flux output within specification range at test current.

All substitute parts share the same base product number (SPMWHT541), confirming design family compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): SPMWHT541MP5WAR0S5 is the primary substitute. It maintains identical electrical characteristics to the main part while offering active product status, ensuring long-term availability and supply chain stability. The improved thermal resistance (15°C/W vs. 16°C/W) provides marginal thermal performance benefit. ROHS3 compliance exceeds the RoHS Compliant status of the original part. This part is recommended for all new production runs and design revisions.

For Parametric Equivalence: SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0 are parametrically equivalent alternatives from the LM561C series. Both parts deliver identical flux output within specification at the 65mA test current and maintain all mechanical and optical parameters. Forward voltage differences (2.75V and 2.8V) are within typical LED operating tolerances and do not affect circuit compatibility in standard constant-current driver configurations. Thermal resistance improvements (12°C/W) support enhanced thermal management in space-constrained applications. Both parts carry active product status and current compliance certifications.

Selection Basis:

• SPMWHT541MP5WAR0S5: Highest inventory availability (17,892 pcs) and direct series continuity
• SPMWHT541ML5XAR0S0: Superior thermal performance and efficiency (196 lm/W)
• SPMWHT541ML5XARKS0: Balanced thermal performance (192 lm/W) with ROHS3 compliance

All three substitutes are suitable for production use based on active status and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAR0S5 be used as a direct drop-in replacement for SPMWHT541MP5WAR0SD?

A: Yes. SPMWHT541MP5WAR0S5 is electrically and mechanically identical to the main part. Both are LM561B Plus series LEDs with 2.95V forward voltage, 35lm flux output at 65mA, and identical 5630 package dimensions. The substitute offers improved thermal resistance and active product status.

Q: What is the difference between LM561B Plus and LM561C series substitutes?

A: Both series deliver identical 5000K color temperature, 80 CRI, and 35lm flux at 65mA test current. The LM561C series (SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0) features lower forward voltage (2.75V and 2.8V vs. 2.95V) and improved thermal resistance (12°C/W vs. 16°C/W). These differences do not affect optical or mechanical compatibility in standard applications.

Q: Are forward voltage differences between substitutes significant?

A: Forward voltage variations of 0.15V to 0.20V are within normal LED operating tolerances. In constant-current driver circuits, forward voltage differences do not affect LED brightness or color output. In voltage-regulated circuits, verify that the driver supply voltage accommodates the lower forward voltage of LM561C alternatives.

Q: Do all substitute parts fit the same PCB footprint?

A: Yes. All parts use identical 4-SMD, Flat Leads package (5630) with 5.00mm × 3.00mm footprint and 0.80mm maximum height. No PCB layout modifications are required for substitution.

Q: Which substitute offers the best thermal performance?

A: SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0 both provide 12°C/W thermal resistance, compared to 16°C/W for the main part and 15°C/W for SPMWHT541MP5WAR0S5. This 4°C/W improvement supports higher ambient temperature operation and extended LED lifespan in thermally constrained designs.

Q: Are all substitutes RoHS compliant?

A: Yes. SPMWHT541MP5WAR0SD and SPMWHT541ML5XAR0S0 carry RoHS Compliant certification. SPMWHT541MP5WAR0S5 and SPMWHT541ML5XARKS0 carry ROHS3 Compliant certification, which represents current regulatory compliance standards.

Q: What is the inventory advantage of SPMWHT541MP5WAR0S5?

A: SPMWHT541MP5WAR0S5 has 17,892 pieces in stock, significantly higher than the main part (793 pcs) and other alternatives (955–1,178 pcs). This availability supports high-volume production requirements and reduces supply chain risk.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, for designs using constant-current LED drivers. All substitutes maintain identical optical output (5000K, 80 CRI, 35lm at 65mA), mechanical fit (5630 package), and electrical current ratings (180mA maximum). Designs using voltage-regulated supplies should verify compatibility with the lower forward voltage of LM561C alternatives.