SPMWH1228FD5WAQ0SC LED Equivalent & Substitute Parts

Part Overview

The SPMWH1228FD5WAQ0SC is a Samsung Semiconductor LM281B+ series cool white LED with a correlated color temperature (CCT) of 5700K, designed for surface mount applications in the 2835 metric package format. This component is classified as Active product status and is suitable for new designs. The LED delivers 65 lumens at 25°C under 150mA test current with a forward voltage of 3.1V and a viewing angle of 120°.

Substitute parts become necessary when addressing inventory constraints, supply chain discontinuities, or design revisions that permit operation within the established electrical and mechanical parameter ranges. The substitute parts listed maintain compatibility through identical or equivalent electrical characteristics, mechanical dimensions, and thermal properties.

Substiute Parts

SPMWH1228FD5WAQ0SC

Samsung Semiconductor, Inc.In Stock: 770SPMWH1228FD5WAQ0SC Datasheet

Current PartRFQ

SPMWH1228FD5WAR0S3

Samsung Semiconductor, Inc.In Stock: 1747SPMWH1228FD5WAR0S3 Datasheet

Parametric EquivalentRFQ

SPMWH1228FD5WARMS3

Samsung Semiconductor, Inc.In Stock: 1098SPMWH1228FD5WARMS3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWH1228FD5WAQ0SC is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Forward voltage (Vf): 3.1V typical
• Test current: 150mA
• Maximum current: 160mA
• Luminous flux @ 25°C: 65 lm (63–67 lm range)
• Lumens per watt efficiency: 140 lm/W
• Color Rendering Index (CRI): 80

Mechanical Compatibility Parameters:

• Package / Case: 1113 (2835 Metric)
• Mounting type: Surface Mount
• Physical dimensions: 0.138" L × 0.110" W (3.50mm × 2.80mm)
• Maximum seated height: 0.030" (0.75mm)
• Thermal resistance: 25°C/W

Environmental & Compliance Parameters:

• Moisture Sensitivity Level (MSL): 2A (4 Weeks)
• RoHS compliance status

The substitute parts SPMWH1228FD5WAR0S3 and SPMWH1228FD5WARMS3 maintain identical electrical performance, mechanical form factor, and thermal characteristics. The primary distinction is the correlated color temperature (CCT), which differs at 5000K compared to the main part's 5700K specification. This variation remains within the cool white color category and does not affect electrical or mechanical substitutability.

Parameter Comparison

Engineering Selection Recommendations

SPMWH1228FD5WAQ0SC (Main Part - Recommended for New Designs)

The SPMWH1228FD5WAQ0SC carries Active product status and is the preferred selection for new design implementations. This part is supported for ongoing production and represents the current generation of the LM281B+ series. The 5700K CCT specification provides a higher color temperature within the cool white range, suitable for applications requiring enhanced brightness perception and daylight-equivalent illumination.

SPMWH1228FD5WAR0S3 (Substitute - Legacy Status)

The SPMWH1228FD5WAR0S3 is classified as Not For New Designs and represents a legacy component from the LM281B series. This part maintains full electrical and mechanical compatibility with the main part, with the exception of CCT specification at 5000K. The ROHS3 compliance certification indicates adherence to revised RoHS directives. This substitute is suitable for replacement in existing production runs or field service applications where inventory of the main part is unavailable.

SPMWH1228FD5WARMS3 (Substitute - Legacy Status)

The SPMWH1228FD5WARMS3 is classified as Not For New Designs and represents a legacy component from the LM281B series. This part maintains full electrical and mechanical compatibility with the main part, with the exception of CCT specification at 5000K. The RoHS Compliant certification indicates standard RoHS compliance. This substitute is suitable for replacement in existing production runs or field service applications where inventory of the main part is unavailable.

Compliance Considerations:

All three parts satisfy RoHS compliance requirements. The main part carries standard RoHS Compliant status. Substitute SPMWH1228FD5WAR0S3 carries ROHS3 Compliant status, indicating compliance with the revised RoHS directive. Substitute SPMWH1228FD5WARMS3 carries standard RoHS Compliant status. All parts maintain identical MSL (2A, 4 Weeks) handling requirements.

Color Temperature Trade-off:

The primary technical distinction between the main part and substitutes is the CCT specification. The main part operates at 5700K, while both substitutes operate at 5000K. This 700K difference represents a shift toward warmer illumination characteristics within the cool white spectrum. Applications sensitive to color temperature consistency should account for this variation in visual output.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD5WAR0S3 or SPMWH1228FD5WARMS3 be used as direct replacements for SPMWH1228FD5WAQ0SC in existing designs?

A: Both substitute parts are electrically and mechanically compatible with the main part. They share identical forward voltage (3.1V), test current (150mA), maximum current (160mA), luminous flux (65 lm), efficiency (140 lm/W), CRI (80), viewing angle (120°), package format (1113/2835 Metric), physical dimensions (0.138" L × 0.110" W), seated height (0.030"), and thermal resistance (25°C/W). The primary difference is the CCT specification: substitutes operate at 5000K compared to the main part's 5700K. Applications where color temperature consistency is not a critical parameter can accommodate this substitution.

Q: What is the significance of the "Not For New Designs" product status on the substitute parts?

A: The "Not For New Designs" designation indicates that SPMWH1228FD5WAR0S3 and SPMWH1228FD5WARMS3 are legacy components from the LM281B series. These parts remain available for existing production support and field service replacement but are not recommended for incorporation into new product designs. The main part SPMWH1228FD5WAQ0SC, with Active status, represents the current generation and is the appropriate selection for new design implementations.

Q: Are there differences in RoHS compliance between the main part and substitutes?

A: The main part SPMWH1228FD5WAQ0SC carries standard RoHS Compliant certification. Substitute SPMWH1228FD5WAR0S3 carries ROHS3 Compliant certification, indicating compliance with the revised RoHS directive. Substitute SPMWH1228FD5WARMS3 carries standard RoHS Compliant certification. All three parts satisfy RoHS compliance requirements and are suitable for applications with RoHS mandates.

Q: Do the substitute parts have identical packaging and handling requirements?

A: All three parts share identical packaging specifications: Tape & Reel (TR) format. All parts maintain the same Moisture Sensitivity Level (MSL) rating of 2A with a 4-week floor life. Handling, storage, and reflow procedures are equivalent across all three parts.

Q: What is the impact of the 700K color temperature difference between the main part and substitutes?

A: The main part operates at 5700K (higher color temperature), while substitutes operate at 5000K (lower color temperature). Both fall within the cool white spectrum. The 5700K specification produces illumination with enhanced brightness perception and closer alignment to daylight characteristics. The 5000K specification produces illumination with slightly warmer appearance while remaining in the cool white category. Applications with strict color temperature requirements should account for this 700K variation in visual output characteristics.

Q: Can the substitute parts be used interchangeably in production without circuit modifications?

A: Yes. The substitute parts SPMWH1228FD5WAR0S3 and SPMWH1228FD5WARMS3 require no circuit modifications for substitution. Electrical parameters (forward voltage, current ratings, efficiency) are identical. Mechanical parameters (package format, dimensions, thermal resistance) are identical. Direct board-level substitution is supported without design changes.

Q: What inventory status should be considered when selecting between the main part and substitutes?

A: The main part SPMWH1228FD5WAQ0SC has 743 pieces in stock. Substitute SPMWH1228FD5WAR0S3 has 1732 pieces in stock. Substitute SPMWH1228FD5WARMS3 has 1063 pieces in stock. Inventory availability may influence substitution decisions in time-sensitive procurement scenarios.