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SPMWH1228MD7WNUMVL LED Equivalent & Substitute Parts
Part Overview
The SPMWH1228MD7WNUMVL is a surface-mount LED from Samsung Semiconductor's LM281B+ series, designed for warm white lighting applications at 3500K color temperature. This component is classified as Active product status and is ROHS3 compliant. Alternative part numbers may be required due to inventory constraints, design revisions, or supply chain considerations while maintaining identical electrical and mechanical performance specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Series | LM281B+ |
| Color | White, Warm |
| CCT (K) | 3500K |
| Flux @ 25°C, 65mA | 32lm (31lm ~ 33lm) |
| Forward Voltage (Vf) | 2.7V |
| Test Current | 65mA |
| Maximum Current | 300mA |
| Lumens/Watt @ 65mA | 182 lm/W |
| CRI | 90 |
| Viewing Angle | 120° |
| Package / Case | 1411 (3528 Metric) |
| Size | 3.30mm x 2.80mm |
| Height - Seated (Max) | 0.80mm |
| Thermal Resistance | 12°C/W |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the SPMWH1228MD7WNUMVL is determined by strict equivalence across the following critical parameters:
- Series designation (LM281B+ family)
- Color specification (White, Warm)
- Correlated Color Temperature (3500K)
- Luminous flux at test conditions (32lm ±1lm @ 25°C, 65mA)
- Forward voltage (2.7V typical)
- Test current (65mA)
- Maximum current rating (300mA)
- Luminous efficacy (182 lm/W @ 65mA)
- Color Rendering Index (90)
- Viewing angle (120°)
- Package type (1411 / 3528 Metric)
- Physical dimensions (3.30mm x 2.80mm, 0.80mm height)
- Thermal resistance (12°C/W)
- Regulatory compliance (ROHS3, REACH Unaffected, EAR99)
The substitute part SPMWH1228MD7WNUYVL meets all these criteria and is classified within the LM281B+Pro variant series, maintaining full electrical and mechanical compatibility.
Parameter Comparison
| Parameter | SPMWH1228MD7WNUMVL | SPMWH1228MD7WNUYVL |
|---|---|---|
| Manufacturer | Samsung Semiconductor, Inc. | Samsung Semiconductor, Inc. |
| Series | LM281B+ | LM281B+Pro |
| Color | White, Warm | White, Warm |
| CCT (K) | 3500K | 3500K |
| Flux @ 25°C, 65mA | 32lm (31lm ~ 33lm) | 32lm (31lm ~ 33lm) |
| Forward Voltage (Vf) | 2.7V | 2.7V |
| Test Current | 65mA | 65mA |
| Maximum Current | 300mA | 300mA |
| Lumens/Watt @ 65mA | 182 lm/W | 182 lm/W |
| CRI | 90 | 90 |
| Viewing Angle | 120° | 120° |
| Package / Case | 1411 (3528 Metric) | 1411 (3528 Metric) |
| Size | 3.30mm x 2.80mm | 3.30mm x 2.80mm |
| Height - Seated (Max) | 0.80mm | 0.80mm |
| Thermal Resistance | 12°C/W | 12°C/W |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) |
Engineering Selection Recommendations
Both SPMWH1228MD7WNUMVL and SPMWH1228MD7WNUYVL are Active product status components from Samsung Semiconductor. Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for industrial and consumer applications. The electrical performance, thermal characteristics, and mechanical specifications are identical across both part numbers. Selection between these parts should be based on availability and supply chain requirements, as they are functionally equivalent for all circuit design and manufacturing purposes.
Frequently Asked Questions (FAQ)
Q: Can SPMWH1228MD7WNUYVL be used as a direct replacement for SPMWH1228MD7WNUMVL?
A: Yes. Both parts share identical electrical specifications (2.7V forward voltage, 65mA test current, 32lm luminous flux), optical properties (3500K CCT, 90 CRI, 120° viewing angle), and mechanical dimensions (1411 package, 3.30mm x 2.80mm x 0.80mm). They are functionally equivalent for circuit design and PCB assembly.
Q: Are there differences in the series designation between these parts?
A: The main part is designated LM281B+, while the substitute is LM281B+Pro. Both designations refer to the same product family with identical performance parameters. The Pro designation indicates a variant within the same electrical and optical specification range.
Q: What is the significance of the 1411 package designation?
A: The 1411 package is the Samsung designation for a 3528 metric surface-mount LED package. This standardized package ensures mechanical and electrical compatibility across both part numbers for automated assembly equipment and PCB footprints.
Q: Are both parts available in the same packaging format?
A: Yes. Both SPMWH1228MD7WNUMVL and SPMWH1228MD7WNUYVL are supplied in Tape & Reel (TR) packaging, suitable for automated pick-and-place assembly processes.
Q: Do these parts have the same thermal characteristics?
A: Yes. Both parts have a thermal resistance of 12°C/W, ensuring identical thermal performance in circuit applications and thermal management calculations.
Q: What regulatory certifications apply to both parts?
A: Both parts are ROHS3 compliant and REACH Unaffected, meeting environmental and hazardous substance restrictions for EU and international markets.
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