SPMWHT541MD5WAP0SB LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAP0SB 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 The part is marked as "Not For New Designs," indicating it has been superseded in Samsung's product portfolio.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 supply chain continuity.

Substiute Parts

SPMWHT541MD5WAP0SB

Samsung Semiconductor, Inc.In Stock: 706SPMWHT541MD5WAP0SB Datasheet

Current PartRFQ

SPMWHT541MP5WAPKS4

Samsung Semiconductor, Inc.In Stock: 48537SPMWHT541MP5WAPKS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAP0SB is determined by strict alignment of the following parameters:

Critical Matching Parameters:

• Color and CCT: White, Cool 6500K
• Series Family: LM561B
• Forward Voltage (Typ): 2.95V
• Test Current: 65mA
• Viewing Angle: 120°
• Package Type: 4-SMD configuration
• Supplier Package Designation: 5630
• Physical Dimensions: 5.00mm × 3.00mm footprint
• Mounting Type: Surface Mount
• RoHS Compliance: Required

The substitute part SPMWHT541MP5WAPKS4 meets all critical parameters while representing an evolution within the LM561B product family (LM561B Plus variant). Both parts share identical electrical operating characteristics at the specified test conditions, identical color temperature, and compatible mechanical form factors suitable for direct PCB layout substitution.

Parameter Comparison

Engineering Selection Recommendations

For SPMWHT541MD5WAP0SB Replacement:

The SPMWHT541MP5WAPKS4 is the designated substitute part. Selection is based on the following engineering criteria:

1. Product Status Alignment: The original part carries "Not For New Designs" status, indicating end-of-life trajectory. The substitute (SPMWHT541MP5WAPKS4) maintains Active status with Samsung Semiconductor, ensuring long-term supply availability and manufacturing continuity.

2. Electrical Compatibility: Both parts operate at identical forward voltage (2.95V) and test current (65mA), ensuring direct circuit compatibility without modification to current-limiting resistor networks or power supply specifications.

3. Optical Characteristics: Both parts deliver 6500K cool white color temperature with 80 CRI, maintaining color consistency in lighting applications. The substitute delivers higher luminous flux (33 lm vs. 30 lm) and superior efficiency (167 lm/W vs. 156 lm/W), representing performance improvement within the same color family.

4. Mechanical Compatibility: Identical 5.00mm × 3.00mm footprint and 5630 package designation ensure PCB layout compatibility. The substitute features a lower maximum height (0.80mm vs. 0.90mm), providing additional clearance margin in space-constrained assemblies.

5. Compliance Enhancement: The substitute achieves ROHS3 compliance versus RoHS Compliant status on the original part, meeting current regulatory requirements for electronics manufacturing.

6. Thermal Performance: The substitute exhibits superior thermal resistance (15°C/W vs. 16°C/W), supporting improved heat dissipation in high-density LED array applications.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAPKS4 be used as a direct replacement for SPMWHT541MD5WAP0SB in existing PCB assemblies?

A: Yes. Both parts share identical forward voltage (2.95V), test current (65mA), color temperature (6500K), viewing angle (120°), and PCB footprint (5.00mm × 3.00mm). No circuit modifications or PCB redesign is required. The substitute can be soldered into existing pads without adjustment to drive electronics.

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

A: Both designations refer to 4-SMD surface mount configurations with 5630 package geometry. The primary distinction is thermal pad exposure design. Both parts maintain identical electrical and optical performance at specified operating conditions and are mechanically compatible with standard 5630 footprints.

Q: Why does the substitute part deliver higher luminous flux (33 lm vs. 30 lm) at the same test current?

A: The SPMWHT541MP5WAPKS4 represents the LM561B Plus variant, incorporating manufacturing improvements that enhance photon conversion efficiency. This results in higher lumen output (167 lm/W vs. 156 lm/W) while maintaining identical electrical operating parameters. This is a performance enhancement, not a deviation.

Q: Are there any thermal management considerations when substituting these parts?

A: The substitute part exhibits lower thermal resistance (15°C/W vs. 16°C/W) and lower maximum height (0.80mm vs. 0.90mm), both favorable characteristics. Thermal management requirements remain equivalent or improve with the substitute. Existing thermal design margins are maintained or enhanced.

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

A: This designation indicates the SPMWHT541MD5WAP0SB has been superseded in Samsung's product portfolio. It signals that the manufacturer is transitioning production to newer variants (such as the LM561B Plus series). For new product development, the substitute part is the recommended selection. For legacy system maintenance, the substitute ensures continued component availability.

Q: Do both parts require identical moisture handling procedures?

A: Yes. Both parts carry MSL 2A (4 Weeks) rating, requiring identical moisture sensitivity precautions. Storage, handling, and reflow procedures specified for MSL 2A components apply uniformly to both parts.

Q: Is the substitute part available in the same packaging format (Tape & Reel)?

A: Yes. The SPMWHT541MP5WAPKS4 is supplied in Tape & Reel (TR) packaging, matching the original part's distribution format and enabling direct integration into automated assembly processes.