SPMWHT541MP5WARMSD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WARMSD 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 active LM561B Plus and LM561C series are available to maintain design continuity and ensure supply chain reliability.

Substiute Parts

SPMWHT541MP5WARMSD

Samsung Semiconductor, Inc.In Stock: 1063SPMWHT541MP5WARMSD 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 Substitution Criteria:

• Color and CCT: White, Cool 5000K
• Flux output range: 33–37lm at 65mA test current
• Forward voltage tolerance: 2.75V–2.95V
• Test current: 65mA
• Maximum current rating: 180mA
• Viewing angle: 120°
• Package type: 4-SMD, Flat Leads (5630)
• Physical dimensions: 5.00mm × 3.00mm × 0.80mm maximum height
• CRI: 80
• Mounting type: Surface Mount

Substitution Categories:

Direct Equivalent (Same Series): SPMWHT541MP5WAR0S5 belongs to the same LM561B Plus series with identical electrical and mechanical specifications. Product status is Active, ensuring ongoing availability.

Parametric Equivalent (Cross-Series): SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0 are LM561C series parts that meet all substitution criteria. These parts operate at lower forward voltages (2.75V and 2.8V respectively) while maintaining identical flux output, current ratings, package dimensions, and viewing angle. Both are Active status products.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): SPMWHT541MP5WAR0S5 is the recommended substitute. It maintains identical electrical characteristics (2.95V forward voltage, 65mA test current) and mechanical compatibility with the original SPMWHT541MP5WARMSD. The part is Active status with significantly higher inventory availability (17,892 units). RoHS3 compliance provides enhanced regulatory alignment for new production environments.

For Parametric Substitution (Cross-Series): SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0 are valid alternatives when forward voltage variation is acceptable within circuit design margins. Both LM561C parts operate at lower forward voltages (2.75V and 2.8V respectively) while delivering identical flux output and maintaining all mechanical and optical specifications. These parts offer improved thermal performance (12°C/W versus 16°C/W) and higher lumens-per-watt efficiency. Both are Active status products.

Compliance Considerations: All substitute parts maintain RoHS compliance (either RoHS or ROHS3 standard) and identical MSL 2A ratings. No additional handling or storage modifications are required during transition.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAR0S5 be used as a direct drop-in replacement for SPMWHT541MP5WARMSD?

A: Yes. SPMWHT541MP5WAR0S5 is electrically and mechanically identical to the original part. Both operate at 2.95V forward voltage, 65mA test current, and deliver 35lm flux output in the same 5630 package. The substitute is Active status with higher inventory availability.

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

A: The LM561C series (SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0) operates at lower forward voltages (2.75V and 2.8V respectively) compared to the LM561B Plus (2.95V). All other parameters—flux output, current ratings, package dimensions, viewing angle, and CRI—are identical. The LM561C series also provides superior thermal performance (12°C/W versus 16°C/W).

Q: Are there any circuit design considerations when switching from SPMWHT541MP5WARMSD to the LM561C series?

A: The forward voltage difference (0.15V to 0.20V lower) must be evaluated in the context of your current-limiting circuit design. If the circuit uses a fixed current source or constant-current driver, no modification is required. If the circuit relies on series resistor current limiting, recalculation of the resistor value may be necessary to maintain the desired 65mA operating point.

Q: Do all substitute parts have the same package dimensions?

A: Yes. All parts listed—SPMWHT541MP5WARMSD, SPMWHT541MP5WAR0S5, SPMWHT541ML5XAR0S0, and SPMWHT541ML5XARKS0—use the 5630 package with identical dimensions of 5.00mm × 3.00mm × 0.80mm maximum height. They are mechanically interchangeable on PCB layouts designed for 4-SMD, flat-lead components.

Q: What is the significance of the Product Status field?

A: SPMWHT541MP5WARMSD is marked "Not For New Designs," indicating end-of-life status. The substitute parts SPMWHT541MP5WAR0S5, SPMWHT541ML5XAR0S0, and SPMWHT541ML5XARKS0 are all marked "Active," confirming ongoing manufacturing and supply availability for new production programs.

Q: Are moisture sensitivity levels identical across all parts?

A: Yes. All parts carry MSL 2A rating with 4-week floor life. Identical handling, storage, and reflow procedures apply across the main part and all substitutes.

Q: Which substitute offers the best thermal performance?

A: SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0 (LM561C series) both provide 12°C/W thermal resistance, compared to 16°C/W for the original SPMWHT541MP5WARMSD. This represents a 25% improvement in thermal performance.