SPMWH1228FD7WAPMS2 LED Equivalent & Substitute Parts

Part Overview

The SPMWH1228FD7WAPMS2 is a Samsung Semiconductor LM281B cool white LED in 2835 metric package (1113 case). This component operates at 3.1V forward voltage with 150mA test current, delivering 54 lumens at 25°C and 116 lm/W efficiency. The part is marked as "Not For New Designs," indicating end-of-life status. Equivalent and substitute parts are necessary to support ongoing production requirements, maintenance applications, and design continuity where this LED series remains specified.

Substiute Parts

SPMWH1228FD7WAPMS2

Samsung Semiconductor, Inc.In Stock: 820SPMWH1228FD7WAPMS2 Datasheet

Current PartRFQ

SPMWH1228FD7WAPMSA

Samsung Semiconductor, Inc.In Stock: 1093SPMWH1228FD7WAPMSA 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 of the SPMWH1228FD7WAPMS2 is determined by the following critical parameters:

Primary Substitution Criteria:

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

Substitution Categories:

Direct Manufacturer Substitute: SPMWH1228FD7WAPMSA maintains identical series designation (LM281B+), package, color, CCT, and electrical operating parameters. Forward voltage and thermal characteristics remain within compatible ranges for direct circuit substitution.

Parametric Equivalents: SPMWH3228FD7WAP0SE, SPMWH3228FD7WAPKSE, and SPMWH3228FD7WAPMSE represent the LM281BZ+ series. These parts share identical package, color, CCT, test current, maximum current, CRI, viewing angle, and physical dimensions. Forward voltage differs at 3.0V (versus 3.1V), and thermal resistance increases to 25°C/W. These parts deliver equivalent 54 lumens at 25°C with improved efficiency at 120 lm/W.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (SPMWH1228FD7WAPMSA):

SPMWH1228FD7WAPMSA is the primary substitute for SPMWH1228FD7WAPMS2. Both parts share the LM281B series designation and maintain identical forward voltage (3.1V), package dimensions, and electrical operating parameters. The direct substitute is Active status, ensuring long-term availability. Flux output differs slightly (51 lm nominal versus 54 lm), remaining within acceptable tolerance ranges for most lighting applications. This part is suitable for direct circuit substitution without design modification.

For Parametric Equivalence (LM281BZ+ Series):

SPMWH3228FD7WAP0SE, SPMWH3228FD7WAPKSE, and SPMWH3228FD7WAPMSE represent the LM281BZ+ series and are parametrically equivalent. All three maintain identical package, color, CCT, test current, maximum current, CRI, and viewing angle specifications. Forward voltage is 3.0V (0.1V lower than the main part), and thermal resistance increases from 17°C/W to 25°C/W. Luminous efficiency improves to 120 lm/W with flux output of 54 lumens at 25°C. These parts are Active status and suitable for applications where the lower forward voltage and higher thermal resistance are acceptable within circuit design parameters.

Compliance and Certification:

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

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD7WAPMSA be used as a direct replacement for SPMWH1228FD7WAPMS2?

A: Yes. SPMWH1228FD7WAPMSA is a direct manufacturer substitute with identical series (LM281B+), package (2835), forward voltage (3.1V), test current (150mA), and maximum current (160mA). Flux output differs by 3 lumens (51 lm versus 54 lm nominal), which remains within acceptable tolerance for most applications. The substitute is Active status, ensuring availability.

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

A: The direct substitute (SPMWH1228FD7WAPMSA) maintains the LM281B series and identical forward voltage. Parametric equivalents (LM281BZ+ series) operate at 3.0V forward voltage and feature higher thermal resistance (25°C/W versus 17°C/W). All parts share identical package, color, CCT, test current, and viewing angle. Parametric equivalents deliver improved efficiency (120 lm/W) and equivalent flux output (54 lumens).

Q: Are there any circuit design considerations when substituting with LM281BZ+ parts?

A: The 0.1V lower forward voltage of LM281BZ+ parts affects circuit current-limiting calculations. Designs using series resistors or current sources must account for the reduced voltage drop. Thermal resistance increase from 17°C/W to 25°C/W requires verification that thermal management remains adequate for the application's operating environment.

Q: Do all substitute parts have identical package dimensions?

A: Yes. All substitute parts use the 1113 (2835 Metric) package with dimensions of 3.50mm × 2.80mm and maximum seated height of 0.75mm. All parts are Surface Mount compatible with identical PCB footprints.

Q: What is the inventory status of substitute parts?

A: SPMWH1228FD7WAPMSA: 1053 pcs. SPMWH3228FD7WAP0SE: 856 pcs. SPMWH3228FD7WAPKSE: 971 pcs. SPMWH3228FD7WAPMSE: 883 pcs. All substitute parts are listed as Active status with new original stock available.

Q: Are moisture sensitivity and RoHS compliance identical across all parts?

A: Yes. All parts maintain MSL 2A (4 Weeks) and RoHS Compliance status. ECCN and HTSUS classifications are identical across the main part and all substitutes.

Q: Why is the main part marked "Not For New Designs"?

A: SPMWH1228FD7WAPMS2 carries end-of-life status. Active substitute parts (SPMWH1228FD7WAPMSA and LM281BZ+ series) are recommended for new designs while supporting existing production with the original part number where specified.