SPMWHT541MD5WAPMS2 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAPMS2 is a Samsung Semiconductor LM561B series cool white LED (6500K) in 5630 surface mount package format. This component is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. The part delivers 2.9V forward voltage at 65mA test current and is housed in a 4-SMD flat lead exposed pad configuration with 0.90mm maximum seated height.

Due to its discontinued design status, identifying functionally equivalent substitute components is essential for ongoing production support, maintenance applications, and legacy system repairs where this LED specification remains required.

Substiute Parts

SPMWHT541MD5WAPMS2

Samsung Semiconductor, Inc.In Stock: 815SPMWHT541MD5WAPMS2 Datasheet

Current PartRFQ

SPMWHT541MP5WAPKS4

Samsung Semiconductor, Inc.In Stock: 48537SPMWHT541MP5WAPKS4 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAPMS2 is determined by strict alignment across the following critical parameters:

Mandatory Matching Criteria:

• Series family: LM561B or LM561B Plus (same base product number SPMWHT541)
• Color specification: White, Cool white only
• CCT (Correlated Color Temperature): 6500K
• Package type: 4-SMD surface mount in 5630 form factor
• Mounting footprint: 5.00mm x 3.00mm base dimensions
• Forward voltage range: Compatible with 2.9V nominal circuit design (tolerance: ±0.1V acceptable)
• Test current: 65mA nominal operation point

Allowable Variation Parameters:

• Forward voltage (Vf): May vary within ±0.05V from 2.9V nominal
• Maximum current rating: May exceed 150mA (higher rating acceptable)
• Seated height: May be lower than 0.90mm (0.80mm acceptable; higher than 0.90mm not acceptable)
• Thermal resistance: May be lower than 16°C/W (improved thermal performance acceptable)
• Product status: Active status preferred over discontinued status
• Compliance certifications: ROHS3 acceptable as upgrade from RoHS Compliant

The SPMWHT541MP5WAPKS4 qualifies as a direct substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP5WAPKS4

The SPMWHT541MP5WAPKS4 is the qualified substitute for SPMWHT541MD5WAPMS2 based on the following engineering factors:

Product Status Advantage: The substitute carries Active product status, ensuring continued availability and manufacturing support from Samsung Semiconductor. The main part's "Not For New Designs" classification indicates end-of-life trajectory, making the active substitute the preferred long-term solution.

Electrical Compatibility: Forward voltage differential of 0.05V (2.95V vs. 2.9V) falls within acceptable circuit tolerance for LED driver circuits designed for the original part. Both components operate at identical 65mA test current, ensuring equivalent brightness and performance at the specified operating point.

Thermal Performance: The substitute's 15°C/W thermal resistance represents a 1°C/W improvement over the main part's 16°C/W rating, providing enhanced heat dissipation characteristics without requiring circuit redesign.

Physical Compatibility: Identical 5.00mm x 3.00mm footprint and 5630 package format ensure direct PCB layout compatibility. The substitute's 0.80mm seated height is lower than the main part's 0.90mm maximum, eliminating any clearance concerns in existing designs.

Compliance Status: ROHS3 compliance of the substitute exceeds the main part's RoHS Compliant status, meeting current and future regulatory requirements without additional qualification.

Optical Specifications: The substitute provides documented optical performance (33lm at 65mA, 167 lm/W efficiency, 80 CRI, 120° viewing angle) that was not specified for the main part, enabling more precise system performance validation.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAPKS4 be used as a direct replacement in existing PCB assemblies designed for SPMWHT541MD5WAPMS2?

A: Yes. Both components share identical 5.00mm x 3.00mm footprint dimensions, 5630 package format, and 4-SMD surface mount configuration. The substitute's 0.80mm seated height is lower than the original 0.90mm specification, eliminating clearance issues. Forward voltage compatibility (2.95V vs. 2.9V) is within acceptable tolerance for LED driver circuits.

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

A: This designation indicates the SPMWHT541MD5WAPMS2 has reached end-of-life in Samsung's product roadmap. Continued availability cannot be guaranteed for future production runs. The substitute SPMWHT541MP5WAPKS4 carries Active status, ensuring manufacturing continuity and supply chain reliability.

Q: Are there any electrical parameter differences that would require circuit modification?

A: No circuit modification is required. The forward voltage difference of 0.05V (2.95V substitute vs. 2.9V original) is within standard LED driver tolerance. Both components operate at 65mA test current and share identical maximum current ratings of 150mA and 180mA respectively. The substitute's higher maximum rating (180mA vs. 150mA) provides additional design margin without affecting nominal operation.

Q: How do the optical characteristics compare between the main part and substitute?

A: Both components are specified as cool white 6500K LEDs. The substitute provides documented optical performance: 33 lumens at 65mA test current, 167 lumens per watt efficiency, and 80 CRI (Color Rendering Index). The main part does not include these specifications in the provided data. Both support identical color temperature for optical system matching.

Q: What is the difference between "Flat Lead Exposed Pad" and "Flat Leads" package descriptions?

A: Both designations refer to 4-SMD surface mount packages with 5.00mm x 3.00mm dimensions. The terminology variation reflects different documentation conventions between product generations. PCB footprint compatibility is identical, and both are suitable for standard surface mount assembly processes.

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

A: No. The 1°C/W improvement in thermal resistance is a performance enhancement that reduces junction temperature under identical operating conditions. Existing thermal management designs will continue to function correctly with improved thermal margins.

Q: Are both components compatible with the same moisture sensitivity level handling procedures?

A: Yes. Both components carry identical MSL (Moisture Sensitivity Level) 2A rating with 4-week floor life. Storage, handling, and reflow procedures specified for the original part apply directly to the substitute without modification.

Q: What compliance certifications should be verified for regulatory requirements?

A: The substitute SPMWHT541MP5WAPKS4 carries ROHS3 compliance, which exceeds the main part's RoHS Compliant status. Both components are classified under ECCN EAR99 and HTSUS 8541.41.0000 for export and tariff purposes. ROHS3 certification ensures compliance with current and anticipated regulatory requirements.