SPMWHT541MP5WARHSD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WARHSD 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. Due to its discontinued design status, equivalent substitute parts from the LM561B Plus and LM561C series are available to maintain compatibility in existing applications or for design transitions.

Substiute Parts

SPMWHT541MP5WARHSD

Samsung Semiconductor, Inc.In Stock: 794SPMWHT541MP5WARHSD 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 of the following parameters:

Primary Compatibility Criteria:

• Color and CCT: White, Cool 5000K (all substitutes match)
• Flux output range: 33–37lm at 65mA test current (all substitutes within range)
• Forward voltage: 2.75V–2.95V (acceptable operating range for 5000K white LEDs)
• Test current: 65mA (all substitutes rated at 65mA)
• Maximum current: 180mA (all substitutes rated at 180mA)
• Viewing angle: 120° (all substitutes match)
• Package: 4-SMD, Flat Leads, 5630 supplier package (all substitutes match)
• Mounting: Surface Mount (all substitutes match)
• Physical dimensions: 5.00mm × 3.00mm × 0.80mm (all substitutes match)
• CRI: 80 (all substitutes match)
• MSL: 2A, 4 Weeks (all substitutes match)

Substitutes are grouped into two categories:

1. Direct Series Equivalent (LM561B Plus): SPMWHT541MP5WAR0S5 maintains identical series designation with improved product status (Active vs. Not For New Designs).

2. Parametric Equivalents (LM561C Series): SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0 represent the next-generation LM561C series with lower forward voltage (2.75V–2.80V) and improved thermal characteristics, while maintaining all optical and mechanical compatibility parameters.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Status Requirement: SPMWHT541MP5WAR0S5 is the recommended substitute when product lifecycle status is a primary consideration. This part maintains identical LM561B Plus series designation and electrical characteristics while offering Active product status, superior inventory availability (17,892 units), and ROHS3 compliance certification.

For Improved Thermal Performance: SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0 provide reduced thermal resistance (12°C/W vs. 16°C/W), enabling better heat dissipation in thermally constrained applications. Both LM561C series parts deliver higher lumens-per-watt efficiency (192–196 lm/W vs. 183 lm/W) with lower forward voltage operation (2.75V–2.80V vs. 2.95V).

For Compliance Certification: All substitute parts maintain RoHS compliance. SPMWHT541MP5WAR0S5 and SPMWHT541ML5XARKS0 carry ROHS3 certification, representing the most current regulatory compliance standard.

For Supply Chain Continuity: SPMWHT541MP5WAR0S5 offers the highest inventory level (17,892 units), ensuring long-term availability for production volumes. LM561C series parts (SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0) provide secondary sourcing options with active product status.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAR0S5 be used as a direct replacement for SPMWHT541MP5WARHSD?

A: Yes. Both parts are LM561B Plus series with identical forward voltage (2.95V), test current (65mA), flux output (35–36lm), viewing angle (120°), and 5630 package specifications. The primary difference is product status: SPMWHT541MP5WAR0S5 is Active, while SPMWHT541MP5WARHSD is Not For New Designs. Electrical and mechanical compatibility is complete.

Q: What are the differences between LM561B Plus and LM561C series substitutes?

A: LM561C series parts (SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0) feature lower forward voltage (2.75V–2.80V vs. 2.95V), improved thermal resistance (12°C/W vs. 16°C/W), and higher efficiency (192–196 lm/W vs. 183 lm/W). All optical parameters (5000K, 80 CRI, 120° viewing angle) and mechanical specifications (5630 package, 5.00mm × 3.00mm × 0.80mm) remain identical. LM561C represents next-generation technology with enhanced performance characteristics.

Q: Are there any forward voltage considerations when substituting LM561C parts?

A: Forward voltage differences (2.75V–2.80V for LM561C vs. 2.95V for LM561B Plus) must be evaluated in circuit design. Lower forward voltage reduces power dissipation and improves efficiency but may require current-limiting resistor or driver circuit adjustment. Verify that the LED driver or current source can operate across the 2.75V–2.95V range without performance degradation.

Q: Do all substitute parts use the same 5630 package and mounting footprint?

A: Yes. All parts—SPMWHT541MP5WARHSD, SPMWHT541MP5WAR0S5, SPMWHT541ML5XAR0S0, and SPMWHT541ML5XARKS0—use identical 4-SMD, Flat Leads package with 5.00mm × 3.00mm × 0.80mm dimensions. PCB footprints and reflow soldering profiles are interchangeable.

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. Lower thermal resistance improves heat dissipation, enabling higher ambient temperature operation or reduced thermal stress in confined spaces.

Q: What is the inventory status for each part?

A: SPMWHT541MP5WAR0S5 has the highest availability at 17,892 units. SPMWHT541ML5XARKS0 has 1,178 units, SPMWHT541ML5XAR0S0 has 955 units, and SPMWHT541MP5WARHSD has 745 units. For high-volume production, SPMWHT541MP5WAR0S5 is recommended.

Q: Are all substitutes RoHS compliant?

A: Yes. SPMWHT541MP5WARHSD and SPMWHT541ML5XAR0S0 carry RoHS Compliant certification. SPMWHT541MP5WAR0S5 and SPMWHT541ML5XARKS0 carry ROHS3 Compliant certification, representing the current regulatory standard. All parts meet environmental compliance requirements.