SPMWHT541MD5WAPMSB LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAPMSB is a Samsung Semiconductor LM561B series cool white LED (6500K) designed for surface mount lighting applications. This component operates at 2.95V forward voltage with a 65mA test current, delivering 30 lumens at 156 lm/W efficiency. The part is marked as "Not For New Designs," indicating it has been superseded in Samsung's product portfolio. Organizations requiring this LED for maintenance, repair, or legacy system support should evaluate the available substitute part to ensure continued component availability and system performance.

Substiute Parts

SPMWHT541MD5WAPMSB

Samsung Semiconductor, Inc.In Stock: 1028SPMWHT541MD5WAPMSB Datasheet

Current PartRFQ

SPMWHT541MP5WAPKS4

Samsung Semiconductor, Inc.In Stock: 48537SPMWHT541MP5WAPKS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD5WAPMSB is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Color and correlated color temperature (CCT): White, Cool 6500K
• Forward voltage (Vf): 2.95V nominal
• Test current: 65mA
• Viewing angle: 120°
• Package configuration: 4-SMD, 5630 form factor
• Mounting type: Surface Mount
• Thermal characteristics: Package thermal resistance

Allowable Variation Parameters:

• Luminous flux: Substitute may exceed the main part specification (30 lm minimum)
• Lumens/Watt efficiency: Substitute may exceed the main part specification (156 lm/W minimum)
• Maximum current rating: Substitute may exceed the main part specification (150mA minimum)
• Thermal resistance: Substitute may be equal to or lower than the main part specification (16°C/W maximum)
• Height (seated): Substitute must not exceed the main part specification (0.90mm maximum)
• CRI: Must remain at 80 or higher
• RoHS and MSL compliance: Substitute must meet or exceed the main part compliance level

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

Parameter Comparison

Engineering Selection Recommendations

SPMWHT541MP5WAPKS4 as Direct Substitute:

The SPMWHT541MP5WAPKS4 is a direct electrical and mechanical substitute for the SPMWHT541MD5WAPMSB. Both components share identical electrical specifications at the 65mA test current (2.95V forward voltage, 6500K color temperature, 120° viewing angle) and are housed in the same 5630 package footprint.

The substitute part offers measurable improvements over the main part:

• Higher luminous flux output (33 lm vs. 30 lm at 65mA)
• Improved efficiency (167 lm/W vs. 156 lm/W)
• Higher maximum current rating (180mA vs. 150mA)
• Lower thermal resistance (15°C/W vs. 16°C/W)
• Reduced seated height (0.80mm vs. 0.90mm)
• Enhanced RoHS compliance (ROHS3 vs. RoHS Compliant)
• Active product status (vs. Not For New Designs)

Compliance Considerations:

Both parts carry identical MSL 2A ratings and EAR99 export classifications. The substitute part's ROHS3 compliance exceeds the main part's RoHS Compliant status, ensuring compatibility with current regulatory requirements.

Application Suitability:

The substitute part is suitable for direct replacement in existing designs without circuit modification. The improved thermal characteristics and higher efficiency may provide operational benefits in thermally constrained applications. The lower seated height accommodates space-limited designs without requiring PCB layout changes.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAPKS4 be used as a direct replacement for SPMWHT541MD5WAPMSB in existing designs?

A: Yes. Both parts operate at identical forward voltage (2.95V) and test current (65mA), share the same 5630 package footprint, and deliver the same color temperature (6500K) and viewing angle (120°). No circuit modifications are required.

Q: What are the key differences between these two parts?

A: The substitute part (SPMWHT541MP5WAPKS4) delivers higher luminous flux (33 lm vs. 30 lm), improved efficiency (167 lm/W vs. 156 lm/W), higher maximum current capability (180mA vs. 150mA), lower thermal resistance (15°C/W vs. 16°C/W), and reduced seated height (0.80mm vs. 0.90mm). The substitute also carries Active product status versus Not For New Designs.

Q: Are there any package compatibility concerns?

A: Both parts use the 5630 package with 4-SMD configuration. The main part features a flat lead exposed pad, while the substitute features flat leads. Both are compatible with standard 5630 footprints. The substitute's lower seated height (0.80mm) is compatible with designs accommodating the main part's 0.90mm height.

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

A: This designation indicates the SPMWHT541MD5WAPMSB has been superseded in Samsung's product portfolio. The SPMWHT541MP5WAPKS4 represents the active replacement with improved specifications and ongoing manufacturing support.

Q: Do both parts have the same moisture sensitivity requirements?

A: Yes. Both parts carry MSL 2A ratings with a 4-week floor life, requiring identical handling and storage protocols.

Q: Is the substitute part suitable for high-current applications?

A: The substitute part supports a maximum current of 180mA compared to the main part's 150mA. However, both parts are specified for 65mA test current operation. Applications requiring higher current operation should evaluate thermal management and forward voltage characteristics at the intended operating point.

Q: What compliance advantages does the substitute part offer?

A: The SPMWHT541MP5WAPKS4 carries ROHS3 compliance, which exceeds the main part's RoHS Compliant status. This ensures compatibility with current and future regulatory requirements in electronics manufacturing and disposal.