SPMWHT541MP5WAUKS4 LED LM561B Plus White 3500K Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAUKS4 is an LED lighting component from Samsung Semiconductor's LM561B Plus series, specified for warm white illumination at 3500K color temperature. This surface-mount LED operates at 2.95V forward voltage with a test current of 65mA, delivering 32 lumens at 25°C with a 120° viewing angle. The component is housed in a 5630 package format with 4-SMD flat leads and is RoHS compliant with active product status. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and thermal properties within the LM561B Plus series.

Substiute Parts

SPMWHT541MP5WAUKS4

Samsung Semiconductor, Inc.In Stock: 857SPMWHT541MP5WAUKS4 Datasheet

Current PartRFQ

SPMWHT541MP5WAUMS4

Samsung Semiconductor, Inc.In Stock: 200498SPMWHT541MP5WAUMS4 Datasheet

Parametric EquivalentRFQ

SPMWHT541MP5WAV0S4

Samsung Semiconductor, Inc.In Stock: 85777SPMWHT541MP5WAV0S4 Datasheet

Parametric EquivalentRFQ

SPMWHT541MP5WAVMS4

Samsung Semiconductor, Inc.In Stock: 50283SPMWHT541MP5WAVMS4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the LM561B Plus series is determined by electrical and mechanical parameter compatibility. The primary substitution criteria are:

Electrical Compatibility Parameters:

• Forward voltage (Vf): 2.95V (fixed across all variants)
• Test current: 65mA (fixed across all variants)
• Maximum current: 180mA (fixed across all variants)
• Lumens per watt efficiency: 167 lm/W (fixed across all variants)
• CRI: 80 (fixed across all variants)

Mechanical Compatibility Parameters:

• Package type: 4-SMD, Flat Leads (5630 format)
• Dimensions: 5.00mm L × 3.00mm W (fixed across all variants)
• Height: 0.80mm maximum (fixed across all variants)
• Mounting type: Surface Mount (fixed across all variants)
• MSL rating: 2A (4 Weeks) (fixed across all variants)

Variable Parameters (Substitution Boundaries):

• Color Temperature (CCT): 3500K (main part) vs. 3000K (substitute variants)
• Thermal Resistance: 15°C/W (main part) vs. 16°C/W (substitute variants)
• RoHS Certification: RoHS Compliant vs. ROHS3 Compliant

Substitutes are grouped by CCT specification. Parts with identical CCT (3500K) represent direct parametric equivalents. Parts with different CCT (3000K) represent functional alternatives within the same series, suitable for applications where warm white at 3000K is acceptable.

Parameter Comparison

Engineering Selection Recommendations

Direct Parametric Equivalent (3500K CCT):

SPMWHT541MP5WAUMS4 is a direct parametric equivalent to SPMWHT541MP5WAUKS4. Both parts maintain identical electrical specifications (2.95V, 65mA, 32 lm, 167 lm/W, CRI 80) and mechanical compatibility (5630 package, 4-SMD flat leads, 5.00mm × 3.00mm × 0.80mm). The thermal resistance differential (16°C/W vs. 15°C/W) is within acceptable engineering tolerance for most thermal management applications. SPMWHT541MP5WAUMS4 carries ROHS3 compliance certification, which exceeds RoHS Compliant status. This part is suitable for direct substitution in applications requiring 3500K warm white illumination.

Functional Alternatives (3000K CCT):

SPMWHT541MP5WAV0S4 and SPMWHT541MP5WAVMS4 are functional alternatives within the LM561B Plus series, differing only in color temperature specification (3000K vs. 3500K). Both maintain identical electrical performance (2.95V, 65mA, 32 lm, 167 lm/W, CRI 80) and mechanical form factor (5630 package, 4-SMD flat leads). Thermal resistance is 16°C/W for both variants. These parts are suitable for substitution in applications where 3000K warm white is acceptable as an alternative to 3500K. SPMWHT541MP5WAVMS4 carries ROHS3 compliance; SPMWHT541MP5WAV0S4 carries standard RoHS compliance.

Compliance Considerations:

All substitute parts maintain active product status and MSL 2A (4 Weeks) rating. Selection between RoHS Compliant and ROHS3 Compliant variants depends on end-application regulatory requirements. ROHS3 certification provides enhanced compliance coverage for restricted substances.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAUMS4 be used as a direct replacement for SPMWHT541MP5WAUKS4?

A: Yes. SPMWHT541MP5WAUMS4 is a direct parametric equivalent. Both parts share identical electrical specifications (2.95V forward voltage, 65mA test current, 32 lm output, 167 lm/W efficiency, CRI 80) and mechanical compatibility (5630 package, 4-SMD flat leads, 5.00mm × 3.00mm dimensions, 0.80mm height). The thermal resistance difference (16°C/W vs. 15°C/W) is within acceptable tolerance. Substitution is valid for applications requiring 3500K warm white illumination.

Q: What is the difference between the 3500K and 3000K variants?

A: The primary difference is color temperature specification. SPMWHT541MP5WAUKS4 and SPMWHT541MP5WAUMS4 are specified at 3500K (warm white). SPMWHT541MP5WAV0S4 and SPMWHT541MP5WAVMS4 are specified at 3000K (warmer white). All other electrical and mechanical parameters remain identical. Selection depends on the required color temperature for the application.

Q: Are all substitute parts mechanically compatible with the original part?

A: Yes. All substitute parts use the 5630 package format with 4-SMD flat leads. Dimensions are identical: 5.00mm length × 3.00mm width × 0.80mm maximum height. All parts are surface-mount components with identical MSL rating (2A, 4 Weeks). PCB footprints and reflow profiles are compatible.

Q: What is the significance of the thermal resistance difference (15°C/W vs. 16°C/W)?

A: The thermal resistance differential of 1°C/W is within acceptable engineering tolerance for most thermal management applications. This represents a marginal difference in heat dissipation characteristics. For applications with stringent thermal constraints, the lower thermal resistance of SPMWHT541MP5WAUKS4 (15°C/W) may be preferred. For standard applications, the 16°C/W rating of substitute parts is acceptable.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: ROHS3 Compliant represents an enhanced certification level with broader coverage of restricted substances compared to standard RoHS Compliant status. Both certifications indicate compliance with hazardous substance restrictions. Selection depends on end-application regulatory requirements. ROHS3 certification is suitable for applications requiring enhanced environmental compliance documentation.

Q: Can I substitute a 3000K part for a 3500K part in my application?

A: Substitution is possible only if the application can accept 3000K warm white illumination instead of 3500K. The electrical and mechanical specifications are identical. However, the visual color output will differ. 3000K produces warmer (more yellow-orange) illumination compared to 3500K. Verify application requirements before substitution.

Q: What inventory levels are available for each part?

A: SPMWHT541MP5WAUKS4 (main part): 805 pcs. SPMWHT541MP5WAUMS4: 200,400 pcs. SPMWHT541MP5WAV0S4: 85,670 pcs. SPMWHT541MP5WAVMS4: 50,200 pcs. Inventory levels are subject to change. Verify current availability with supplier.

Q: Are all parts in active product status?

A: Yes. All parts listed (main and substitutes) maintain active product status, indicating ongoing manufacturing and support from Samsung Semiconductor, Inc.