SPMWHT541MD5WARMSC LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WARMSC is a Samsung Semiconductor LM561B series cool white LED (5000K) designed for surface mount lighting applications. This component features a 5630 package format with 4-SMD flat lead exposed pad configuration, delivering 33lm at 65mA test current with 2.95V forward voltage and 120° viewing angle.

The SPMWHT541MD5WARMSC carries a "Not For New Designs" product status, indicating Samsung has transitioned this component to end-of-life phase. Organizations requiring this LED for new production runs or design revisions must identify functionally equivalent alternatives that maintain electrical and mechanical compatibility with existing circuit designs and assembly processes.

Substiute Parts

SPMWHT541MD5WARMSC

Samsung Semiconductor, Inc.In Stock: 882SPMWHT541MD5WARMSC Datasheet

Current PartRFQ

SPMWHT541MP5WARKS4

Samsung Semiconductor, Inc.In Stock: 73422SPMWHT541MP5WARKS4 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WARMSC is determined by strict alignment across the following critical parameters:

Electrical Compatibility Requirements:

• Color Temperature (CCT): Must be 5000K (cool white)
• Forward Voltage (Vf): Must be 2.95V typical
• Test Current: Must be 65mA
• Luminous Flux Range: Must fall within 31lm–35lm at 25°C test conditions
• Viewing Angle: Must be 120°

Mechanical Compatibility Requirements:

• Package Type: Must be 5630 (4-SMD format)
• Mounting Type: Must be Surface Mount
• Lead Configuration: Must be compatible with existing PCB footprints

Regulatory & Compliance Requirements:

• RoHS Status: Must meet RoHS compliance standards
• Moisture Sensitivity Level (MSL): Must be 2A or better

The SPMWHT541MP5WARKS4 qualifies as a direct substitute based on matching all electrical parameters within specified tolerances, identical package geometry, and equivalent regulatory compliance. The primary distinction is product status transition (Active vs. Not For New Designs) and packaging format (Cut Tape vs. Tape & Reel).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SPMWHT541MP5WARKS4

The SPMWHT541MP5WARKS4 is the qualified substitute for SPMWHT541MD5WARMSC based on the following engineering criteria:

Product Status Alignment: The SPMWHT541MD5WARMSC is designated "Not For New Designs," indicating Samsung has discontinued active support for this component. The SPMWHT541MP5WARKS4 carries "Active" product status, ensuring continued availability, manufacturing support, and compliance with current regulatory standards.

Electrical Parameter Equivalence: All critical electrical parameters match within specified tolerances: 5000K color temperature, 2.95V forward voltage, 65mA test current, and 120° viewing angle. Luminous flux output (34lm) falls within the acceptable range (31–35lm) and represents a marginal improvement over the main part specification (33lm).

Mechanical Compatibility: Both components use identical 5630 package geometry (5.00mm × 3.00mm) and surface mount configuration. The substitute exhibits a lower seated height (0.80mm vs. 0.90mm), which presents no compatibility issues for standard PCB designs and may provide clearance advantages in space-constrained layouts.

Thermal Performance: The substitute demonstrates superior thermal characteristics (15°C/W vs. 16°C/W), indicating improved heat dissipation and reduced junction temperature under equivalent operating conditions.

Regulatory Compliance: The SPMWHT541MP5WARKS4 meets ROHS3 compliance, representing an enhanced regulatory posture compared to the main part's RoHS Compliant status. Both components maintain identical MSL 2A moisture sensitivity ratings.

Packaging Consideration: The substitute is supplied in Cut Tape (CT) format rather than Tape & Reel (TR). Organizations requiring bulk quantities or automated assembly processes should verify Cut Tape compatibility with existing pick-and-place equipment and tape feeder configurations.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WARKS4 be used as a direct replacement in existing circuit designs?

A: Yes. The substitute maintains identical forward voltage (2.95V), test current (65mA), and color temperature (5000K). Current-limiting resistor values and circuit topology require no modification. The component operates within the same electrical envelope as the original design.

Q: What is the significance of the "Not For New Designs" status on SPMWHT541MD5WARMSC?

A: This designation indicates Samsung has transitioned the component to end-of-life phase. New production runs should not incorporate this part number. The SPMWHT541MP5WARKS4 (Active status) is the recommended path forward for design continuity and long-term supply assurance.

Q: Are there differences in luminous flux output between the two parts?

A: The substitute produces 34lm compared to the main part's 33lm, both within the specified 31–35lm tolerance band. This represents a 3% improvement in brightness and is not significant for most lighting applications. Designs with strict luminous flux requirements should verify the substitute's output against application specifications.

Q: How does the height difference (0.90mm vs. 0.80mm) affect PCB design?

A: The substitute is 0.10mm shorter, which provides additional clearance in space-constrained applications. This dimension change does not affect electrical performance or footprint compatibility. Standard PCB designs accommodate this variation without modification.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel packaging supplies components on continuous reels suitable for high-volume automated assembly. Cut Tape provides components on tape segments, typically for lower-volume or manual assembly processes. Verify your assembly equipment supports Cut Tape format before ordering SPMWHT541MP5WARKS4.

Q: Does the improved thermal resistance (15°C/W vs. 16°C/W) require circuit design changes?

A: No. The thermal improvement is a benefit that reduces junction temperature under equivalent operating conditions. Existing thermal design calculations remain valid; actual junction temperatures will be slightly lower than predicted, providing additional design margin.

Q: Are the CRI (Color Rendering Index) values identical?

A: Yes. Both components maintain CRI 80, ensuring equivalent color rendering characteristics for lighting applications requiring consistent color fidelity.

Q: What is the maximum current rating difference, and does it affect circuit design?

A: The substitute supports 180mA maximum current versus 150mA for the main part. Existing designs operating at or below 150mA require no modification. The higher rating provides additional operational headroom for the substitute component.

Q: Is ROHS3 compliance a requirement for my application?

A: ROHS3 compliance is mandatory for products sold in European Union markets and increasingly required by global OEMs. The substitute's ROHS3 status ensures regulatory alignment with current and anticipated future requirements. The main part's RoHS Compliant status may not satisfy emerging compliance standards.