SPMWH1228FD5WAPKS2 LED Equivalent & Substitute Parts

Part Overview

The SPMWH1228FD5WAPKS2 is a Samsung Semiconductor LM281B cool white LED in 2835 metric package (1113 case). This surface mount LED operates at 3.1V forward voltage with 150mA test current, delivering 59 lumens at 25°C and 127 lm/W efficiency. The part is marked as Not For New Designs, making identification of active equivalent alternatives essential for ongoing production and new design initiatives.

Substiute Parts

SPMWH1228FD5WAPKS2

Samsung Semiconductor, Inc.In Stock: 934SPMWH1228FD5WAPKS2 Datasheet

Current PartRFQ

SPMWH1228FD5WAPKSA

Samsung Semiconductor, Inc.In Stock: 899SPMWH1228FD5WAPKSA Datasheet

DirectRFQ

SPMWH3228FD5WAP0SC

Samsung Semiconductor, Inc.In Stock: 1158SPMWH3228FD5WAP0SC Datasheet

Parametric EquivalentRFQ

SPMWH3228FD5WAPKSC

Samsung Semiconductor, Inc.In Stock: 719SPMWH3228FD5WAPKSC Datasheet

Parametric EquivalentRFQ

SPMWH3228FD5WAPMSC

Samsung Semiconductor, Inc.In Stock: 1057SPMWH3228FD5WAPMSC Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of SPMWH1228FD5WAPKS2 is determined by the following critical parameters:

Primary Substitution Criteria:

• Color: White, Cool (6500K CCT)
• Package / Case: 1113 (2835 Metric)
• Mounting Type: Surface Mount
• Viewing Angle: 120°
• CRI: 80
• Current - Test: 150mA
• Current - Max: 160mA
• Thermal Resistance: 25°C/W
• RoHS Compliance and MSL rating

Direct Manufacturer Substitute: SPMWH1228FD5WAPKSA (LM281B+ series) maintains identical electrical and mechanical specifications with improved flux output (60lm vs 59lm) and higher efficiency (129 lm/W vs 127 lm/W). Forward voltage remains 3.1V. Product status is Active, making this the primary direct substitute.

Parametric Equivalents: SPMWH3228FD5WAP0SC, SPMWH3228FD5WAPKSC, and SPMWH3228FD5WAPMSC (LM281BZ+ series) provide parametric equivalence with identical flux output (59lm), higher efficiency (131 lm/W), and reduced forward voltage (3.0V vs 3.1V). All maintain 2835 package, 120° viewing angle, 150mA test current, and 160mA maximum current. All three are Active status products.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Existing Designs): SPMWH1228FD5WAPKSA is the appropriate direct substitute for SPMWH1228FD5WAPKS2. Both maintain identical forward voltage (3.1V), package dimensions, and thermal characteristics. The LM281B+ series offers improved luminous flux (60lm vs 59lm) and efficiency (129 lm/W vs 127 lm/W) while maintaining Active product status and full RoHS compliance.

For New Designs: SPMWH3228FD5WAP0SC, SPMWH3228FD5WAPKSC, or SPMWH3228FD5WAPMSC (LM281BZ+ series) are recommended. All three deliver superior efficiency (131 lm/W), reduced forward voltage (3.0V), and Active product status. The 0.1V lower forward voltage reduces power dissipation and thermal load. All maintain identical package, viewing angle, CRI, and compliance certifications.

Compliance Considerations: All substitute parts maintain RoHS Compliance and MSL 2A (4 Weeks) rating, ensuring compatibility with existing supply chain and assembly processes. No additional moisture handling or environmental controls are required beyond current procedures.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD5WAPKSA directly replace SPMWH1228FD5WAPKS2 without circuit modification?

A: Yes. SPMWH1228FD5WAPKSA maintains identical forward voltage (3.1V), maximum current (160mA), package dimensions (2835 metric), and thermal resistance (25°C/W). No circuit redesign is required for direct substitution in existing applications.

Q: What is the difference between the direct substitute and parametric equivalents?

A: SPMWH1228FD5WAPKSA (direct substitute) uses the LM281B+ series with 3.1V forward voltage. The parametric equivalents (SPMWH3228 series with LM281BZ+) operate at 3.0V forward voltage, delivering higher efficiency (131 lm/W vs 129 lm/W). Both groups maintain identical flux output, package, and viewing angle. The lower forward voltage of parametric equivalents reduces power consumption by approximately 3%.

Q: Are all substitute parts available in the same packaging format?

A: SPMWH1228FD5WAPKSA is supplied in Tape & Reel (TR) packaging, matching the main part. The three parametric equivalents (SPMWH3228 series) do not specify packaging format in the provided data. Confirm packaging availability with the supplier before design implementation.

Q: What is the impact of the 0.1V forward voltage difference in parametric equivalents?

A: The LM281BZ+ series operates at 3.0V versus 3.1V for LM281B/LM281B+. This 0.1V reduction decreases power dissipation by approximately 3% at 150mA test current. Thermal management and power supply design remain compatible with existing specifications due to identical thermal resistance (25°C/W) and maximum current ratings (160mA).

Q: Are there any differences in luminous flux between substitute options?

A: SPMWH1228FD5WAPKSA delivers 60lm (58-62lm range) versus 59lm (57-61lm) for the main part. The three LM281BZ+ parametric equivalents deliver 59lm (57-61lm), matching the main part flux specification. All flux values are measured at 25°C and 150mA test current.

Q: Do all parts meet the same RoHS and moisture sensitivity requirements?

A: Yes. All substitute parts are RoHS Compliant with MSL 2A (4 Weeks) rating, identical to the main part. No changes to supply chain handling, storage, or assembly procedures are required.

Q: Which substitute should be selected for new product designs?

A: For new designs, the LM281BZ+ series (SPMWH3228FD5WAP0SC, SPMWH3228FD5WAPKSC, or SPMWH3228FD5WAPMSC) is recommended. All three are Active status products with superior efficiency (131 lm/W) and reduced forward voltage (3.0V), providing better long-term supply security and improved power efficiency compared to the Not For New Designs status of the original part.