SPMWHT541MD5WAV0SB LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAV0SB is a Samsung Semiconductor LM561B series warm white LED designed for surface mount applications. This component operates at 3000K color temperature with a forward voltage of 2.95V and test current of 65mA, delivering 29 lumens at 151 lm/W efficiency. The part is marked as "Not For New Designs," indicating it has been superseded in Samsung's product portfolio. Identifying equivalent and substitute parts is necessary for ongoing production support, maintenance applications, and component sourcing where the original part is no longer actively manufactured.

Substiute Parts

SPMWHT541MD5WAV0SB

Samsung Semiconductor, Inc.In Stock: 1201SPMWHT541MD5WAV0SB Datasheet

Current PartRFQ

SPMWHT541MP5WAVMS4

Samsung Semiconductor, Inc.In Stock: 50283SPMWHT541MP5WAVMS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD5WAV0SB is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Color and CCT: White, Warm 3000K
• Forward Voltage (Typ): 2.95V
• Test Current: 65mA
• Viewing Angle: 120°
• Package Type: 4-SMD, 5630 form factor
• Mounting: Surface Mount
• CRI: 80

Allowable Variation Parameters:

• Flux output at 25°C: Within acceptable lumen range for the application
• Lumens/Watt efficiency: Higher efficiency acceptable
• Maximum current rating: May exceed original specification
• Height and thermal resistance: Within SMD assembly tolerances
• Product status and compliance: Active status preferred for new sourcing

The substitute part SPMWHT541MP5WAVMS4 meets all critical matching parameters while offering improved performance characteristics in flux output and efficiency. Both parts share the same base product number (SPMWHT541) and are manufactured by Samsung Semiconductor, Inc.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP5WAVMS4

The SPMWHT541MP5WAVMS4 is the direct substitute for SPMWHT541MD5WAV0SB based on the following engineering criteria:

1. 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.

2. Optical Compatibility: Both parts deliver 3000K warm white light with 80 CRI and 120° viewing angle. The substitute provides higher flux output (32lm vs. 29lm) and improved efficiency (167 lm/W vs. 151 lm/W), representing a performance enhancement rather than a compromise.

3. Mechanical Compatibility: Both parts use identical 5630 package footprint and surface mount configuration. The substitute has a slightly lower seated height (0.80mm vs. 0.90mm), which is compatible with standard SMD assembly processes and does not affect PCB layout or clearance requirements.

4. Compliance Status: The substitute carries ROHS3 compliance, which supersedes the RoHS compliance of the original part, meeting current regulatory requirements. Both parts share identical MSL rating (2A, 4 Weeks).

5. Product Status: The substitute is marked as "Active," ensuring ongoing availability and manufacturing support, whereas the original part is "Not For New Designs." For production continuity and long-term sourcing, the substitute is the recommended choice.

6. Thermal Performance: Identical thermal resistance (16°C/W) ensures equivalent thermal management characteristics in the application circuit.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAVMS4 be used as a direct replacement for SPMWHT541MD5WAV0SB without PCB modifications?

A: Yes. Both parts share identical electrical specifications (2.95V forward voltage, 65mA test current), package footprint (5630, 5.00 x 3.00mm), and mounting configuration (4-SMD surface mount). No circuit modifications, resistor adjustments, or PCB layout changes are required.

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

A: Both designations refer to 4-SMD surface mount packages with flat leads suitable for reflow soldering. The "Exposed Pad" variant in the original part provides additional thermal dissipation through a center pad. The substitute's "Flat Leads" configuration maintains equivalent thermal resistance (16°C/W) and is compatible with standard SMD assembly equipment.

Q: Why does the substitute part have higher lumen output (32lm vs. 29lm)?

A: The SPMWHT541MP5WAVMS4 represents an improved version within the LM561B product family (designated "LM561B Plus"). At identical test current (65mA), the substitute delivers higher luminous flux due to enhanced LED die efficiency. This is a performance improvement and does not affect circuit compatibility.

Q: Are there any thermal management differences between these parts?

A: No. Both parts have identical thermal resistance of 16°C/W. The substitute has a slightly lower seated height (0.80mm vs. 0.90mm), which may provide marginally improved thermal coupling to the PCB but does not require any design changes.

Q: What is the inventory status for sourcing?

A: The original part (SPMWHT541MD5WAV0SB) has 1,128 pieces in stock. The substitute (SPMWHT541MP5WAVMS4) has significantly higher inventory at 50,200 pieces, providing better long-term availability and supply chain security.

Q: Is the substitute compliant with current environmental regulations?

A: Yes. The substitute carries ROHS3 compliance, which is the current RoHS standard. The original part carries RoHS compliance. Both parts meet current regulatory requirements for electronic component manufacturing and distribution.

Q: Can these parts be mixed in the same production batch?

A: Yes. Both parts are electrically and mechanically compatible and can be used interchangeably in the same circuit design. However, standard component traceability and quality control procedures should be followed to maintain manufacturing documentation.