SPMWH1228FD5WAPKS3 Equivalent & Substitute Parts

Part Overview

The SPMWH1228FD5WAPKS3 is a Samsung Semiconductor LM281B series cool white LED in 2835 metric package (1113 case). This component operates at 6500K color temperature with 150mA test current and 3.1V forward voltage. The part is classified as Not For New Designs, indicating end-of-life status. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and field replacement applications.

Substiute Parts

SPMWH1228FD5WAPKS3

Samsung Semiconductor, Inc.In Stock: 1023SPMWH1228FD5WAPKS3 Datasheet

Current PartRFQ

SPMWH1228FD5WAPKSC

Samsung Semiconductor, Inc.In Stock: 969SPMWH1228FD5WAPKSC Datasheet

DirectRFQ

SPMWH3228FD5WAP0SE

Samsung Semiconductor, Inc.In Stock: 1013SPMWH3228FD5WAP0SE Datasheet

Parametric EquivalentRFQ

SPMWH3228FD5WAPKSE

Samsung Semiconductor, Inc.In Stock: 815SPMWH3228FD5WAPKSE Datasheet

Parametric EquivalentRFQ

SPMWH3228FD5WAPMSE

Samsung Semiconductor, Inc.In Stock: 825SPMWH3228FD5WAPMSE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWH1228FD5WAPKS3 is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Color and CCT: White, Cool 6500K
• Package / Case: 1113 (2835 Metric)
• Viewing Angle: 120°
• Mounting Type: Surface Mount
• Test Current: 150mA
• Maximum Current: 160mA
• CRI: 80
• RoHS Compliance: Required
• MSL: 2A (4 Weeks)

Allowable Variations:

• Forward Voltage (Vf): 3.0V to 3.1V (within typical operating range)
• Flux @ 25°C: 61–66 lm (within specified tolerance bands)
• Lumens/Watt: 135–140 lm/W (efficiency variation within product family)
• Series designation: LM281B, LM281B+, LM281BZ+ (same base product family)
• Product Status: Active preferred over Not For New Designs

Substitute parts must maintain identical package dimensions, thermal characteristics, and compliance certifications to ensure mechanical and thermal compatibility in existing designs.

Parameter Comparison

Engineering Selection Recommendations

Direct Manufacturer Substitute (Preferred):

SPMWH1228FD5WAPKSC is the primary substitute for SPMWH1228FD5WAPKS3. This part maintains identical electrical specifications within tolerance, identical package geometry, and carries Active product status. The LM281B+ series represents an incremental improvement over the LM281B with marginally higher luminous flux (64 lm vs. 63 lm) and efficiency (138 lm/W vs. 135 lm/W), both within acceptable design margins. RoHS compliance and MSL rating are identical.

Parametric Equivalent Substitutes (Secondary Options):

SPMWH3228FD5WAP0SE, SPMWH3228FD5WAPKSE, and SPMWH3228FD5WAPMSE are parametric equivalents based on the LM281BZ+ series. These parts satisfy all mechanical and thermal requirements with identical package dimensions and thermal resistance. The forward voltage is 3.0V (versus 3.1V in the main part), representing a 0.1V reduction within normal LED operating tolerance. Luminous flux and efficiency are equivalent or superior (63 lm, 140 lm/W). All three LM281BZ+ variants carry Active product status and full RoHS compliance.

Compliance and Certification:

All substitute parts maintain RoHS compliance and identical MSL ratings (2A, 4 Weeks), ensuring compatibility with existing manufacturing and storage protocols. ECCN and HTSUS classifications are consistent across all parts.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD5WAPKSC be used as a direct replacement for SPMWH1228FD5WAPKS3?

A: Yes. SPMWH1228FD5WAPKSC is a direct manufacturer substitute with identical electrical performance within specification tolerance, identical package dimensions, and superior product status (Active vs. Not For New Designs). The LM281B+ series is the next-generation variant of LM281B with equivalent or improved performance characteristics.

Q: What is the difference between the LM281B+ and LM281BZ+ series?

A: Both series operate at 6500K, 150mA test current, 120° viewing angle, and identical package geometry. The primary difference is forward voltage: LM281B+ operates at 3.1V (matching the main part), while LM281BZ+ operates at 3.0V. Both are within acceptable LED operating ranges. LM281BZ+ demonstrates higher efficiency (140 lm/W vs. 135–138 lm/W).

Q: Are the three LM281BZ+ variants (SPMWH3228FD5WAP0SE, SPMWH3228FD5WAPKSE, SPMWH3228FD5WAPMSE) electrically identical?

A: Yes. All three LM281BZ+ variants share identical electrical specifications, flux output, forward voltage, current ratings, and CRI. Differences exist only in packaging designation codes, which do not affect electrical or mechanical performance.

Q: Will substituting a 3.0V part (LM281BZ+) for a 3.1V part (LM281B) affect circuit design?

A: The 0.1V difference falls within normal LED forward voltage tolerance and typical circuit design margins. LED driver circuits designed for 3.1V operation will function with 3.0V parts. However, circuit validation is the responsibility of the design engineer.

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

A: SPMWH1228FD5WAPKSC is supplied in Tape & Reel (TR) packaging, matching the main part. The three LM281BZ+ variants (SPMWH3228FD5WAP0SE, SPMWH3228FD5WAPKSE, SPMWH3228FD5WAPMSE) do not specify packaging format in the provided data. Packaging availability must be confirmed with the supplier.

Q: Do all parts meet RoHS and MSL requirements?

A: Yes. All parts listed are RoHS Compliant with MSL rating 2A (4 Weeks), ensuring compatibility with standard manufacturing and storage conditions.