SPMWH1228FD7WAPKS2 LED Equivalent & Substitute Parts

Part Overview

The SPMWH1228FD7WAPKS2 is a Samsung Semiconductor LM281B cool white LED in 2835 metric package (1113 case) designed for surface mount lighting applications. This part operates at 6500K color temperature with 90 CRI and delivers 54 lumens at 150mA test current. The product is classified as "Not For New Designs," indicating end-of-life status. Direct substitutes and parametric equivalents are available from Samsung's active product lines to support ongoing production requirements and design transitions.

Substiute Parts

SPMWH1228FD7WAPKS2

Samsung Semiconductor, Inc.In Stock: 726SPMWH1228FD7WAPKS2 Datasheet

Current PartRFQ

SPMWH1228FD7WAPKSA

Samsung Semiconductor, Inc.In Stock: 867SPMWH1228FD7WAPKSA Datasheet

DirectRFQ

SPMWH3228FD7WAP0SE

Samsung Semiconductor, Inc.In Stock: 940SPMWH3228FD7WAP0SE Datasheet

Parametric EquivalentRFQ

SPMWH3228FD7WAPKSE

Samsung Semiconductor, Inc.In Stock: 1042SPMWH3228FD7WAPKSE Datasheet

Parametric EquivalentRFQ

SPMWH3228FD7WAPMSE

Samsung Semiconductor, Inc.In Stock: 932SPMWH3228FD7WAPMSE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for SPMWH1228FD7WAPKS2 is determined by the following critical parameters:

Primary Substitution Criteria:

• Color and CCT: White, Cool 6500K (exact match required)
• Package / Case: 1113 (2835 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• CRI: 90 (exact match required)
• Viewing Angle: 120° (exact match required)
• Test Current: 150mA (exact match required)
• Maximum Current: 160mA (exact match required)

Allowable Parameter Variations:

• Forward Voltage (Typ): 3.0–3.1V (within design tolerance)
• Flux @ 25°C: 51–56 lm (within specification range)
• Lumens/Watt: 110–120 lm/W (efficiency variation acceptable)
• Thermal Resistance: 17–25°C/W (thermal performance variation acceptable)
• Product Status: Active products preferred for new production; Not For New Designs acceptable for legacy support

Substitute Categories:

Direct Manufacturer Substitute: SPMWH1228FD7WAPKSA (LM281B+ series) — identical electrical and mechanical specifications with improved product status (Active).

Parametric Equivalents: SPMWH3228FD7WAP0SE, SPMWH3228FD7WAPKSE, SPMWH3228FD7WAPMSE (LM281BZ+ series) — forward voltage reduced to 3.0V nominal with improved efficiency (120 lm/W) and thermal characteristics (25°C/W).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

SPMWH1228FD7WAPKSA is the direct manufacturer substitute. This LM281B+ variant maintains identical electrical performance (3.1V forward voltage, 150mA test current, 54 lm nominal output) and mechanical compatibility (2835 package, 120° viewing angle). The primary advantage is Active product status, enabling continued procurement for production applications. Thermal resistance increases from 17°C/W to 25°C/W; thermal design review is required for applications with junction temperature constraints below 85°C ambient plus 25°C/W × power dissipation.

For Optimized Performance (Parametric Equivalents):

SPMWH3228FD7WAP0SE, SPMWH3228FD7WAPKSE, and SPMWH3228FD7WAPMSE (LM281BZ+ series) deliver improved efficiency (120 lm/W versus 116 lm/W) and identical luminous flux (54 lm) at reduced forward voltage (3.0V nominal). These parts are suitable for applications where lower power dissipation or reduced thermal load is beneficial. Forward voltage reduction of 0.1V decreases power consumption by approximately 3.2% at 150mA. All parametric equivalents maintain Active product status and full RoHS compliance. Circuit design must accommodate 3.0V forward voltage; direct pin-for-pin substitution is mechanically and electrically valid.

Compliance and Certification:

All substitute parts carry RoHS Compliant certification and MSL 2A (4 Weeks) moisture sensitivity rating, matching the original part. ECCN and HTSUS classifications remain consistent across all variants.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD7WAPKSA replace SPMWH1228FD7WAPKS2 in existing designs without circuit modification?

A: Yes. SPMWH1228FD7WAPKSA is a direct substitute with identical forward voltage (3.1V), test current (150mA), luminous flux (54 lm nominal), and package (2835). Thermal resistance increases from 17°C/W to 25°C/W; verify that thermal design margins remain adequate for your application's maximum ambient temperature and power dissipation.

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

A: SPMWH1228FD7WAPKSA (LM281B+) maintains 3.1V forward voltage identical to the original. SPMWH3228FD7WAP0SE, SPMWH3228FD7WAPKSE, and SPMWH3228FD7WAPMSE (LM281BZ+) reduce forward voltage to 3.0V and increase efficiency to 120 lm/W. Parametric equivalents require circuit design review to confirm 3.0V forward voltage compatibility.

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

A: SPMWH1228FD7WAPKSA is supplied in Tape & Reel (TR) packaging, matching the original part. Packaging information for parametric equivalents is not specified in the provided data; contact the supplier for packaging format confirmation before procurement.

Q: Can parametric equivalents be used in high-temperature applications?

A: Parametric equivalents have thermal resistance of 25°C/W compared to 17°C/W for the original part. At 150mA and 3.0V, power dissipation is approximately 0.45W. Thermal design analysis is required for applications operating above 70°C ambient temperature to ensure junction temperature remains within rated limits.

Q: What is the inventory status for substitute parts?

A: SPMWH1228FD7WAPKSA: 805 Pcs. SPMWH3228FD7WAP0SE: 856 Pcs. SPMWH3228FD7WAPKSE: 971 Pcs. SPMWH3228FD7WAPMSE: 883 Pcs. Original part SPMWH1228FD7WAPKS2: 683 Pcs. Inventory levels are subject to change; confirm availability with supplier before finalizing procurement schedules.

Q: Are there any differences in color rendering or light output between the main part and substitutes?

A: All parts maintain 6500K color temperature, 90 CRI, and 120° viewing angle. Luminous flux at 150mA test current is 54 lm for the main part and parametric equivalents; SPMWH1228FD7WAPKSA has 51 lm nominal (49–53 lm range). This 5.6% reduction in flux is within normal manufacturing tolerance and may require luminaire photometric re-evaluation for applications with strict lumen output specifications.