SPMWH1228FD5WAW0SC LED Equivalent & Substitute Parts

Part Overview

The SPMWH1228FD5WAW0SC is a Samsung Semiconductor surface-mount LED in the LM281B+ series, designed for warm white lighting applications at 2700K color temperature. This component is classified as Active product status and is suitable for new designs. The LED operates at 3.1V forward voltage with 150mA test current, delivering 59 lumens at 25°C with a 120° viewing angle in a compact 2835 metric package (1113).

Substitute parts become necessary when primary inventory is unavailable, when design revisions require alternative product series, or when supply chain optimization requires sourcing from different manufacturing batches or packaging configurations. The LM281B series represents an earlier generation within the same product family, classified as Not For New Designs, making substitution decisions dependent on specific application requirements and inventory constraints.

Substiute Parts

SPMWH1228FD5WAW0SC

Samsung Semiconductor, Inc.In Stock: 919SPMWH1228FD5WAW0SC Datasheet

Current PartRFQ

SPMWH1228FD5WAWMS3

Samsung Semiconductor, Inc.In Stock: 7371SPMWH1228FD5WAWMS3 Datasheet

Parametric EquivalentRFQ

SPMWH1228FD5WAWUS3

Samsung Semiconductor, Inc.In Stock: 19793SPMWH1228FD5WAWUS3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWH1228FD5WAW0SC is determined by strict parametric matching across the following critical criteria:

Electrical Parameters (Must Match):

• Color temperature: 2700K
• Forward voltage (Typ): 3.1V
• Test current: 150mA
• Maximum current: 160mA
• Luminous flux @ 25°C: 59lm (57–61lm range)
• Luminous efficacy: 127 lm/W
• Color Rendering Index: 80

Mechanical Parameters (Must Match):

• Package / Case: 1113 (2835 Metric)
• Mounting type: Surface Mount
• Physical dimensions: 3.50mm L × 2.80mm W
• Maximum seated height: 0.75mm

Compliance Parameters (Must Match):

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

The substitute parts SPMWH1228FD5WAWMS3 and SPMWH1228FD5WAWUS3 share identical electrical and mechanical specifications with the main part. The primary distinction is series designation (LM281B versus LM281B+) and product status classification (Not For New Designs versus Active). Both substitutes maintain full parametric equivalence and are interchangeable from an electrical and mechanical standpoint.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (SPMWH1228FD5WAW0SC): The SPMWH1228FD5WAW0SC is the recommended choice for new design implementations. This part carries Active product status, indicating full manufacturer support, ongoing production, and long-term availability. It belongs to the LM281B+ series, representing the current generation within the Samsung warm white LED portfolio. All electrical, mechanical, and compliance parameters meet contemporary design standards. RoHS compliance and MSL 2A classification ensure compatibility with standard surface-mount assembly processes.

Secondary Selection (SPMWH1228FD5WAWMS3 or SPMWH1228FD5WAWUS3): The substitute parts SPMWH1228FD5WAWMS3 and SPMWH1228FD5WAWUS3 are classified as Not For New Designs but remain electrically and mechanically equivalent to the primary part. These substitutes are appropriate for:

• Existing design revisions requiring component replacement
• Supply chain continuity when primary inventory is depleted
• Cost optimization in mature production phases

Both substitutes maintain identical electrical performance (3.1V, 150mA, 59lm @ 2700K, 127 lm/W) and mechanical compatibility (2835 package, 120° viewing angle, 0.75mm height). The SPMWH1228FD5WAWUS3 offers the highest available inventory (19,696 pcs), followed by SPMWH1228FD5WAWMS3 (7,277 pcs).

Compliance Verification: All three parts are RoHS Compliant and carry MSL 2A (4 Weeks) moisture sensitivity classification. No additional environmental or regulatory considerations differentiate the substitutes from the primary part.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD5WAWMS3 or SPMWH1228FD5WAWUS3 be used as direct replacements for SPMWH1228FD5WAW0SC in new designs?

A: From an electrical and mechanical standpoint, yes. Both substitutes deliver identical performance: 3.1V forward voltage, 150mA test current, 59 lumens at 2700K, and 127 lm/W efficacy. However, the substitute parts carry Not For New Designs status, indicating Samsung does not recommend them for new product development. The SPMWH1228FD5WAW0SC (LM281B+ series, Active status) is the appropriate choice for new designs.

Q: What is the difference between LM281B and LM281B+ series?

A: Both series share identical electrical and mechanical specifications as provided in this reference. The primary distinction is product lifecycle status: LM281B+ is Active (current generation), while LM281B is Not For New Designs (legacy generation). No parametric differences exist between the series in the specifications provided.

Q: Are the physical dimensions identical across all three parts?

A: Yes. All three parts use the 1113 (2835 Metric) package with dimensions of 3.50mm length × 2.80mm width and maximum seated height of 0.75mm. They are mechanically interchangeable in surface-mount applications.

Q: Do the substitute parts have the same thermal characteristics?

A: Yes. All three parts have identical thermal resistance of 25°C/W. Thermal performance in circuit design is equivalent across the main part and both substitutes.

Q: What is the significance of the MSL 2A (4 Weeks) rating?

A: MSL 2A indicates Moisture Sensitivity Level 2A with a 4-week floor life. This classification applies to all three parts and specifies handling and storage requirements. Components must be used within 4 weeks of package opening under standard laboratory conditions (23°C, 50% relative humidity). This is a standard requirement for surface-mount LEDs and does not differentiate the substitutes from the primary part.

Q: Can these parts be used interchangeably in existing production?

A: Electrical and mechanical interchangeability is confirmed. However, design documentation and bill of materials (BOM) should reflect the actual part number used. If SPMWH1228FD5WAW0SC is specified in the original design, substitution with SPMWH1228FD5WAWMS3 or SPMWH1228FD5WAWUS3 should be documented as a design change or engineering change order (ECO) depending on organizational procedures.

Q: Which substitute part should be selected if both are available?

A: Selection between SPMWH1228FD5WAWMS3 and SPMWH1228FD5WAWUS3 depends on inventory availability and supply chain logistics. Both parts are electrically and mechanically identical. SPMWH1228FD5WAWUS3 currently has higher inventory (19,696 pcs versus 7,277 pcs), which may provide supply chain advantages for high-volume applications.

Q: Are there any performance differences in luminous flux or color temperature?

A: No. All three parts deliver 59 lumens (57–61lm range) at 25°C with 150mA test current and maintain 2700K color temperature with 80 CRI. Luminous efficacy is 127 lm/W across all parts. Color and brightness performance are identical.