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SPMWHT541MD7WATMS0 Equivalent & Substitute Parts
Part Overview
The SPMWHT541MD7WATMS0 is a Samsung Semiconductor LM561B series neutral white LED (4000K) designed for surface mount lighting applications. This component delivers 26 lumens at 65mA with a forward voltage of 2.95V and features a 120° viewing angle in a compact 5630 package format.
The SPMWHT541MD7WATMS0 carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this LED specification.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Series | LM561B | — |
| Color / CCT | White, Neutral / 4000K | — |
| Flux @ 25°C, 65mA | 26 (23–29) | lm |
| Forward Voltage (Typ) | 2.95 | V |
| Test Current | 65 | mA |
| Maximum Current | 150 | mA |
| Viewing Angle | 120 | ° |
| Package / Case | 4-SMD, Flat Lead Exposed Pad / 5630 | — |
| Dimensions | 5.00 × 3.00 × 0.90 | mm |
| CRI | 90 | — |
| RoHS Status | RoHS Compliant | — |
| MSL Rating | 2A (4 Weeks) | — |
Substitute Part Grouping Explanation
Substitution eligibility for the SPMWHT541MD7WATMS0 is determined by the following critical parameters:
Color and Correlated Color Temperature (CCT): Both the main part and substitute must maintain neutral white 4000K specification to preserve color consistency in lighting applications.
Electrical Characteristics: Forward voltage (2.95V typical), test current (65mA), and maximum current rating must remain within compatible ranges to ensure proper circuit operation and thermal management.
Optical Performance: Luminous flux output (26 lm nominal), viewing angle (120°), and Color Rendering Index (90) must be maintained to preserve application performance.
Package and Mechanical Compatibility: The 5630 package format, 4-SMD flat lead configuration, and physical dimensions (5.00 × 3.00 mm footprint, 0.90 mm maximum height) must be identical to ensure PCB assembly compatibility.
Compliance and Environmental Ratings: RoHS compliance status and Moisture Sensitivity Level (MSL 2A) must be equivalent or superior.
The SPMWHT541MP7WATMS0 qualifies as a direct substitute based on these criteria.
Parameter Comparison
| Parameter | SPMWHT541MD7WATMS0 (Main) | SPMWHT541MP7WATMS0 (Substitute) | Compatibility |
|---|---|---|---|
| Series | LM561B | LM561B Plus | Compatible Family |
| Color / CCT | White, Neutral / 4000K | White, Neutral / 4000K | Identical |
| Flux @ 25°C, 65mA | 26 (23–29) lm | 27 (24–30) lm | Compatible (Higher Output) |
| Forward Voltage (Typ) | 2.95 V | 2.95 V | Identical |
| Test Current | 65 mA | 65 mA | Identical |
| Maximum Current | 150 mA | 180 mA | Compatible (Higher Rating) |
| Lumens/Watt @ 65mA | 136 lm/W | 141 lm/W | Compatible (Higher Efficiency) |
| Viewing Angle | 120° | 120° | Identical |
| Package / Case | 4-SMD, Flat Lead Exposed Pad | 4-SMD, Flat Leads | Compatible (Flat Lead Design) |
| Supplier Device Package | 5630 | 5630 | Identical |
| Dimensions | 5.00 × 3.00 × 0.90 mm | 5.00 × 3.00 × 0.80 mm | Compatible (Reduced Height) |
| CRI | 90 | 90 | Identical |
| Thermal Resistance | 16°C/W | 15°C/W | Compatible (Improved) |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | Compatible (Enhanced Compliance) |
| MSL Rating | 2A (4 Weeks) | 2A (4 Weeks) | Identical |
| Product Status | Obsolete | Active | Substitute Available |
Engineering Selection Recommendations
Primary Substitute: SPMWHT541MP7WATMS0
The SPMWHT541MP7WATMS0 is the qualified substitute for the obsolete SPMWHT541MD7WATMS0. Selection is based on the following engineering factors:
Product Status and Availability: The SPMWHT541MD7WATMS0 is classified as Obsolete with limited inventory (642 pcs). The SPMWHT541MP7WATMS0 maintains Active product status with substantial inventory availability (43,274 pcs), ensuring long-term supply chain continuity.
Electrical and Optical Equivalence: Both parts operate at identical forward voltage (2.95V) and test current (65mA). The substitute delivers marginally higher luminous flux (27 lm vs. 26 lm) and improved efficiency (141 lm/W vs. 136 lm/W) while maintaining the same color temperature (4000K) and Color Rendering Index (90).
Mechanical Compatibility: Both components utilize the 5630 package format with identical footprint dimensions (5.00 × 3.00 mm). The substitute features a reduced seated height (0.80 mm vs. 0.90 mm), which is compatible with existing PCB designs and may provide improved thermal performance.
Compliance Enhancement: The substitute carries ROHS3 compliance, representing an upgrade from the main part's RoHS Compliant status. Both maintain identical Moisture Sensitivity Level (MSL 2A, 4 Weeks).
Thermal Performance: The substitute exhibits improved thermal resistance (15°C/W vs. 16°C/W) and higher maximum current rating (180mA vs. 150mA), providing enhanced operational margin.
For new designs or production transitions, the SPMWHT541MP7WATMS0 is the recommended selection. For existing applications, direct substitution is supported without circuit modification.
Frequently Asked Questions (FAQ)
Q: Can the SPMWHT541MP7WATMS0 be used as a direct replacement for the SPMWHT541MD7WATMS0 in existing designs?
A: Yes. Both components share identical electrical characteristics (2.95V forward voltage, 65mA test current), optical properties (4000K, 90 CRI, 120° viewing angle), and package footprint (5630, 5.00 × 3.00 mm). The substitute is mechanically and electrically compatible without circuit redesign.
Q: What are the differences between these two parts?
A: The SPMWHT541MP7WATMS0 represents an enhanced version within the LM561B family. Key differences include: higher luminous flux output (27 lm vs. 26 lm at 65mA), improved efficiency (141 lm/W vs. 136 lm/W), higher maximum current rating (180mA vs. 150mA), reduced seated height (0.80 mm vs. 0.90 mm), improved thermal resistance (15°C/W vs. 16°C/W), and upgraded RoHS compliance status (ROHS3 vs. RoHS Compliant). The substitute is available in Tape & Reel packaging.
Q: Are there any thermal management considerations when substituting these parts?
A: The substitute exhibits superior thermal characteristics with lower thermal resistance (15°C/W vs. 16°C/W) and reduced package height (0.80 mm vs. 0.90 mm). These improvements enhance heat dissipation and may reduce junction temperature in equivalent operating conditions. No additional thermal management modifications are required.
Q: What is the significance of the product status difference (Obsolete vs. Active)?
A: The main part (SPMWHT541MD7WATMS0) is Obsolete with limited remaining inventory (642 pcs). The substitute (SPMWHT541MP7WATMS0) maintains Active status with robust inventory (43,274 pcs), ensuring reliable long-term supply availability for production and future orders.
Q: Are the packaging formats interchangeable?
A: The main part is supplied in standard packaging format. The substitute is available in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. Both formats contain identical components; the packaging difference reflects supply chain optimization for active products. Tape & Reel format is compatible with automated pick-and-place assembly equipment.
Q: Do these parts require different handling or storage procedures?
A: Both components carry identical Moisture Sensitivity Level (MSL 2A, 4 Weeks) ratings. Storage, handling, and reflow procedures are equivalent. No additional precautions are required when transitioning between these parts.
Q: What compliance certifications apply to the substitute part?
A: The SPMWHT541MP7WATMS0 carries ROHS3 compliance, representing an enhanced regulatory status compared to the main part's RoHS Compliant designation. Both parts are classified under ECCN EAR99 and HTSUS 8541.41.0000. The substitute meets current environmental and trade compliance requirements.
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