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SPMWHT541MP5WAUHS4 LED LM561B Plus White 3500K Equivalent & Substitute Parts
Part Overview
The SPMWHT541MP5WAUHS4 is a Samsung Semiconductor LM561B Plus series white LED with warm color temperature of 3500K, designed for surface mount applications in 5630 package format. This part is classified as "Not For New Designs," indicating it has reached end-of-life status. The LM561B Plus series delivers 32 lumens at 65mA test current with 120° viewing angle and is suitable for general illumination and backlighting applications requiring warm white light output.
Due to its discontinued design status, equivalent substitute parts from the active LM561B Plus product line are available to maintain design compatibility and ensure supply chain continuity for existing applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | SPMWHT541MP5WAUHS4 | — |
| Manufacturer | Samsung Semiconductor, Inc. | — |
| Series | LM561B Plus | — |
| Product Status | Not For New Designs | — |
| Color | White, Warm | — |
| CCT (Correlated Color Temperature) | 3500K | K |
| Flux @ 25°C, 65mA Test Current | 32 | lm |
| Forward Voltage (Vf) Typical | 2.95 | V |
| Test Current | 65 | mA |
| Maximum Current | 180 | mA |
| Lumens/Watt @ 65mA | 162 | lm/W |
| CRI (Color Rendering Index) | 80 | — |
| Viewing Angle | 120 | ° |
| Mounting Type | Surface Mount | — |
| Package / Case | 4-SMD, Flat Leads | — |
| Supplier Device Package | 5630 | — |
| Size / Dimension | 5.00 × 3.00 | mm |
| Height - Seated (Max) | 0.80 | mm |
| Thermal Resistance of Package | 16 | °C/W |
| RoHS Status | RoHS Compliant | — |
| Moisture Sensitivity Level (MSL) | 2A (4 Weeks) | — |
| ECCN | EAR99 | — |
| HTSUS | 8541.41.0000 | — |
Substitute Part Grouping Explanation
Substitute parts for the SPMWHT541MP5WAUHS4 are selected based on strict electrical and mechanical parameter matching within the LM561B Plus series. The substitution logic is organized into two primary groups based on correlated color temperature (CCT):
Group 1: 3500K Warm White Equivalents These parts maintain identical CCT specification (3500K) and are direct functional replacements. Substitutes in this group include SPMWHT541MP5WAU0S4, SPMWHT541MP5WAUKS4, SPMWHT541MP5WAUMS4, SPMWHT541MP5WAUNS4, and SPMWHT541MP5WAUSS4. All share the same electrical characteristics: 2.95V forward voltage, 65mA test current, 32 lumens output, 120° viewing angle, and 4-SMD 5630 package format. These parts are classified as Active product status, ensuring ongoing availability and supply chain support.
Group 2: 3000K Warm White Alternatives These parts operate at 3000K CCT, representing a warmer color temperature variant. Substitutes include SPMWHT541MP5WAV0S4, SPMWHT541MP5WAVKS4, SPMWHT541MP5WAVMS4, and SPMWHT541MP5WAVNS4. These maintain identical electrical performance (2.95V, 65mA, 32 lumens, 120° viewing angle) and mechanical compatibility (5630 package, 4-SMD flat leads) but deliver a warmer light output suitable for applications requiring 3000K color temperature.
Critical Substitution Parameters:
- Correlated Color Temperature (CCT): 3500K or 3000K
- Forward Voltage (Vf): 2.95V
- Test Current: 65mA
- Luminous Flux: 32 lumens
- Viewing Angle: 120°
- Package Format: 5630 (4-SMD, Flat Leads)
- Mounting Type: Surface Mount
- Thermal Resistance: 14–16°C/W range acceptable
Parameter Comparison
| Parameter | SPMWHT541MP5WAUHS4 (Main) | SPMWHT541MP5WAU0S4 | SPMWHT541MP5WAUKS4 | SPMWHT541MP5WAUMS4 | SPMWHT541MP5WAUNS4 | SPMWHT541MP5WAUSS4 |
|---|---|---|---|---|---|---|
| Product Status | Not For New Designs | Active | Active | Active | Active | Active |
| CCT (K) | 3500 | 3500 | 3500 | 3500 | 3500 | 3500 |
| Flux @ 25°C, 65mA (lm) | 32 | 32 | 32 | 32 | 32 | 32 |
| Forward Voltage (V) | 2.95 | 2.95 | 2.95 | 2.95 | 2.95 | 2.95 |
| Test Current (mA) | 65 | 65 | 65 | 65 | 65 | 65 |
| Lumens/Watt @ 65mA | 162 | 167 | 167 | 167 | 167 | 167 |
| CRI | 80 | 80 | 80 | 80 | 80 | 80 |
| Maximum Current (mA) | 180 | 180 | 180 | 180 | 180 | 180 |
| Viewing Angle (°) | 120 | 120 | 120 | 120 | 120 | 120 |
| Package / Case | 4-SMD, Flat Leads | 4-SMD, Flat Leads | 4-SMD, Flat Leads | 4-SMD, Flat Leads | 4-SMD, Flat Leads | 4-SMD, Flat Leads |
| Supplier Device Package | 5630 | 5630 | 5630 | 5630 | 5630 | 5630 |
| Size / Dimension (mm) | 5.00 × 3.00 | 5.00 × 3.00 | 5.00 × 3.00 | 5.00 × 3.00 | 5.00 × 3.00 | 5.00 × 3.00 |
| Height - Seated Max (mm) | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 |
| Thermal Resistance (°C/W) | 16 | 15 | 15 | 16 | 15 | 14 |
| RoHS Status | RoHS Compliant | RoHS Compliant | RoHS Compliant | ROHS3 Compliant | RoHS Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 2A (4 Weeks) | 2A (4 Weeks) | 2A (4 Weeks) | 2A (4 Weeks) | 2A (4 Weeks) | 2A (4 Weeks) |
| Inventory Status | 769 Pcs | 968 Pcs | 805 Pcs | 200400 Pcs | 973 Pcs | 769 Pcs |
Engineering Selection Recommendations
Primary Substitutes for 3500K Applications:
For applications requiring 3500K correlated color temperature, SPMWHT541MP5WAUMS4 is the recommended primary substitute. This part maintains full electrical and mechanical compatibility with the original SPMWHT541MP5WAUHS4, offers the highest inventory availability (200,400 units), and carries ROHS3 compliance certification. The thermal resistance of 16°C/W matches the original specification, ensuring equivalent thermal performance in existing PCB layouts.
Secondary 3500K substitutes include SPMWHT541MP5WAU0S4, SPMWHT541MP5WAUKS4, SPMWHT541MP5WAUNS4, and SPMWHT541MP5WAUSS4. All are classified as Active product status with RoHS compliance. SPMWHT541MP5WAUSS4 offers the lowest thermal resistance (14°C/W) and ROHS3 compliance, suitable for thermally constrained applications. SPMWHT541MP5WAUNS4 and SPMWHT541MP5WAUKS4 provide thermal resistance of 15°C/W with standard RoHS compliance.
Alternative Substitutes for 3000K Applications:
When 3000K warm white color temperature is acceptable, SPMWHT541MP5WAVMS4 provides the highest inventory availability (50,200 units) with ROHS3 compliance and 16°C/W thermal resistance. SPMWHT541MP5WAV0S4 offers 85,670 units in stock with standard RoHS compliance. Both maintain identical electrical performance and mechanical compatibility.
Compliance Considerations:
All substitute parts carry either RoHS or ROHS3 compliance certification. ROHS3-compliant variants (SPMWHT541MP5WAUMS4, SPMWHT541MP5WAVMS4, SPMWHT541MP5WAUSS4) meet enhanced environmental standards and are preferred for new production runs. All parts maintain MSL 2A (4 Weeks) moisture sensitivity rating, requiring identical storage and handling protocols as the original part.
Frequently Asked Questions (FAQ)
Q: Can SPMWHT541MP5WAUMS4 be used as a direct replacement for SPMWHT541MP5WAUHS4?
A: Yes. SPMWHT541MP5WAUMS4 is a direct parametric equivalent. Both parts share identical electrical specifications (2.95V forward voltage, 65mA test current, 32 lumens), mechanical dimensions (5630 package, 5.00 × 3.00 mm), and thermal characteristics (16°C/W). The primary difference is product status: the original is "Not For New Designs" while SPMWHT541MP5WAUMS4 is Active with ROHS3 compliance.
Q: What is the difference between 3500K and 3000K variants?
A: The difference is correlated color temperature (CCT). SPMWHT541MP5WAUHS4 and its 3500K substitutes (SPMWHT541MP5WAU0S4, SPMWHT541MP5WAUKS4, SPMWHT541MP5WAUMS4, SPMWHT541MP5WAUNS4, SPMWHT541MP5WAUSS4) emit light at 3500K, perceived as neutral warm white. The 3000K variants (SPMWHT541MP5WAV0S4, SPMWHT541MP5WAVKS4, SPMWHT541MP5WAVMS4, SPMWHT541MP5WAVNS4) emit warmer light. All other electrical and mechanical parameters remain identical.
Q: Are all substitute parts compatible with existing PCB layouts?
A: Yes. All substitute parts use the identical 5630 package format with 4-SMD flat leads, 5.00 × 3.00 mm dimensions, and 0.80 mm maximum seated height. Thermal resistance values range from 14–16°C/W, all within acceptable tolerance for existing thermal designs. No PCB modifications are required.
Q: What is the difference between RoHS and ROHS3 compliance?
A: ROHS3 represents enhanced environmental compliance with stricter restrictions on hazardous substances. Parts marked ROHS3 (SPMWHT541MP5WAUMS4, SPMWHT541MP5WAVMS4, SPMWHT541MP5WAUSS4) meet current regulatory standards and are preferred for new production. Standard RoHS-compliant parts remain functionally equivalent but may not meet the latest environmental certifications.
Q: Why does SPMWHT541MP5WAUMS4 show higher lumens/watt efficiency (167 lm/W vs. 162 lm/W)?
A: The difference reflects manufacturing process improvements within the LM561B Plus series. Both parts deliver 32 lumens at 65mA test current, meeting the same luminous output specification. The efficiency difference is within normal production variation and does not affect functional compatibility or application performance.
Q: What inventory considerations should guide part selection?
A: SPMWHT541MP5WAUMS4 offers the highest inventory (200,400 units), ensuring long-term supply availability. For 3000K applications, SPMWHT541MP5WAV0S4 (85,670 units) and SPMWHT541MP5WAVMS4 (50,200 units) provide substantial stock. All other variants maintain 769–1,011 units. For high-volume production, SPMWHT541MP5WAUMS4 is the optimal choice.
Q: Are moisture sensitivity requirements identical across all substitutes?
A: Yes. All parts carry MSL 2A (4 Weeks) rating, requiring identical storage conditions (≤30°C, ≤60% relative humidity) and handling protocols. No changes to component storage, transport, or assembly procedures are necessary when switching between equivalent parts.
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