SPMWH3228FD5WAWMS2 LED Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD5WAWMS2 is a Samsung Semiconductor warm white 2700K LED in 2835 metric package (1113 case). This part operates at 3.1V forward voltage with 150mA test current, delivering 55 lumens at 25°C and 118 lm/W efficiency. The device features 80 CRI, 120° viewing angle, and surface mount configuration.

The SPMWH3228FD5WAWMS2 carries a "Not For New Designs" product status. Equivalent substitute parts are available in active production status, offering identical electrical and mechanical performance with improved long-term availability and supply chain stability.

Key Parameters

Parameter	Value
Color / CCT	White, Warm 2700K
Forward Voltage (Vf) Typical	3.1V
Test Current	150mA
Maximum Current	160mA
Luminous Flux @ 25°C	55lm (53–57lm range)
Lumens per Watt	118 lm/W
Color Rendering Index (CRI)	80
Viewing Angle	120°
Package / Case	1113 (2835 Metric)
Mounting Type	Surface Mount
Thermal Resistance	25°C/W
RoHS Status	RoHS Compliant
MSL Rating	2A (4 Weeks)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

Color and correlated color temperature (2700K warm white)
Forward voltage range (3.0–3.1V)
Test current (150mA)
Maximum current rating (160mA)
Luminous flux output (53–57lm at 25°C)
Color rendering index (80 CRI)
Viewing angle (120°)
Package and case designation (1113 / 2835 metric)
Surface mount configuration
Thermal resistance (25°C/W)
RoHS compliance and MSL rating (2A, 4 Weeks)

Substitute parts are grouped into two series categories:

LM281B+ Series (Active Status): SPMWH1228FD5WAW0SA, SPMWH1228FD5WAWKSA, SPMWH1228FD5WAWMSA maintain identical electrical specifications and package dimensions as the main part. These represent direct parametric equivalents with active production status.

LM281BZ+ Series (Active Status): SPMWH3228FD5WAW0SC, SPMWH3228FD5WAWKSC, SPMWH3228FD5WAWMSC offer enhanced efficiency (122 lm/W vs. 118 lm/W) and reduced forward voltage (3.0V vs. 3.1V) while maintaining all other electrical and mechanical parameters. These represent performance-improved variants within the same package family.

Parameter Comparison

Part Number	Series	Status	Vf (Typ)	Flux @ 25°C	lm/W	CRI	Angle	Package	Inventory
SPMWH3228FD5WAWMS2	LM281BZ	Not For New Designs	3.1V	55lm	118	80	120°	2835	1089 Pcs
SPMWH1228FD5WAW0SA	LM281B+	Active	3.1V	55lm	118	80	120°	2835	985 Pcs
SPMWH1228FD5WAWKSA	LM281B+	Active	3.1V	55lm	118	80	120°	2835	1053 Pcs
SPMWH1228FD5WAWMSA	LM281B+	Active	3.1V	55lm	118	80	120°	2835	774 Pcs
SPMWH3228FD5WAW0SC	LM281BZ+	Active	3.0V	55lm	122	80	120°	2835	770 Pcs
SPMWH3228FD5WAWKSC	LM281BZ+	Active	3.0V	55lm	122	80	120°	2835	866 Pcs
SPMWH3228FD5WAWMSC	LM281BZ+	Active	3.0V	55lm	122	80	120°	2835	732 Pcs

Engineering Selection Recommendations

All substitute parts maintain RoHS compliance and MSL 2A (4 Weeks) certification identical to the main part. All substitute parts are in active production status, eliminating obsolescence risk associated with the "Not For New Designs" designation of SPMWH3228FD5WAWMS2.

LM281B+ Series Selection: Choose SPMWH1228FD5WAWKSA, SPMWH1228FD5WAWMSA, or SPMWH1228FD5WAW0SA for direct parametric replacement. These parts maintain 3.1V forward voltage and 118 lm/W efficiency specifications. Inventory availability ranges from 774 to 1053 units across variants.

LM281BZ+ Series Selection: Choose SPMWH3228FD5WAWKSC, SPMWH3228FD5WAWMSC, or SPMWH3228FD5WAW0SC for improved efficiency applications. These parts reduce forward voltage to 3.0V and increase efficiency to 122 lm/W, reducing power dissipation in thermal-constrained designs. Inventory availability ranges from 732 to 866 units across variants.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD5WAWKSA replace SPMWH3228FD5WAWMS2 directly?

A: Yes. Both parts deliver 55 lumens at 150mA test current, operate at 3.1V forward voltage, feature 80 CRI, 120° viewing angle, and use identical 2835 metric packaging. The LM281B+ series maintains full electrical and mechanical compatibility.

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

A: LM281B+ variants (SPMWH1228 base number) maintain the original 3.1V forward voltage and 118 lm/W efficiency. LM281BZ+ variants (SPMWH3228 base number) reduce forward voltage to 3.0V and increase efficiency to 122 lm/W. Both deliver identical 55-lumen output and are mechanically interchangeable in 2835 packages.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts carry RoHS Compliant certification and MSL 2A (4 Weeks) rating, matching the original part's environmental and handling requirements.

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

A: This designation indicates the part is in end-of-life phase. Active substitute parts ensure long-term supply chain stability and support for new product development.

Q: Can I use LM281BZ+ parts in existing designs specified for LM281BZ?

A: Yes, provided your circuit design accommodates the 0.1V lower forward voltage (3.0V vs. 3.1V). The improved efficiency (122 lm/W vs. 118 lm/W) and identical luminous output make LM281BZ+ a performance-enhanced substitute. All other electrical and mechanical parameters remain equivalent.

Q: What packaging variants are available among the substitutes?

A: All substitute parts use 2835 metric package (1113 case) with surface mount configuration. Packaging is identical across all variants. Differences in part numbers (WAW0SA, WAWKSA, WAWMSA, WAW0SC, WAWKSC, WAWMSC) reflect internal Samsung manufacturing or distribution codes, not package variations.

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