SPMWH3228FD5WAVMSG LED Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD5WAVMSG is a Samsung Semiconductor surface-mount LED lighting component featuring the LM281BZ+ series. This warm white 3000K LED operates at 3V with a test current of 150mA, delivering 64 lumens at 25°C with a 120° viewing angle. The component is housed in a 2835 metric package (1113 case code) with dimensions of 3.50mm × 2.80mm × 0.75mm maximum height.

The SPMWH3228FD5WAVMSG maintains Active product status and is RoHS compliant with MSL 2A classification. Substitute parts are available from the LM281B series, which represents an earlier generation within the same product family. These substitutes are classified as Not For New Designs, making them suitable for legacy system maintenance and field replacement applications where component continuity is required.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	SPMWH3228FD5WAVMSG	—
Series	LM281BZ+	—
Color	White, Warm	—
Correlated Color Temperature (CCT)	3000K	K
Luminous Flux @ 25°C, 150mA	64 (62–66)	lm
Forward Voltage (Vf) Typical	3.0	V
Test Current	150	mA
Maximum Current	160	mA
Luminous Efficacy @ Test Current	142	lm/W
Color Rendering Index (CRI)	80	—
Viewing Angle	120	°
Package / Case	1113 (2835 Metric)	—
Dimensions (L × W)	3.50 × 2.80	mm
Height – Seated (Max)	0.75	mm
Thermal Resistance	25	°C/W
Mounting Type	Surface Mount	—
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitution of the SPMWH3228FD5WAVMSG is determined by strict equivalence across the following critical parameters:

Color and Spectral Properties: All substitute parts maintain identical warm white color (3000K CCT) and Color Rendering Index (CRI = 80), ensuring consistent color appearance in lighting applications.

Optical Performance: Luminous flux output remains constant at 64 lumens (62–66 lm range) at 25°C under 150mA test current across all substitute parts, maintaining equivalent brightness levels.

Electrical Characteristics: Test current (150mA) and maximum current rating (160mA) are identical. Forward voltage (Vf) differs slightly between the main part (3.0V typical) and substitutes (3.1V typical), representing a 0.1V variance within acceptable circuit design tolerances.

Mechanical Compatibility: All parts share identical package designation (1113 / 2835 metric), physical dimensions (3.50mm × 2.80mm), and maximum seated height (0.75mm), ensuring direct PCB footprint compatibility.

Thermal and Environmental Specifications: Thermal resistance (25°C/W), RoHS compliance, and MSL classification (2A, 4 Weeks) are uniform across all parts.

Series Designation: The main part belongs to the LM281BZ+ series (Active status), while substitutes belong to the LM281B series (Not For New Designs status). This series distinction reflects product lifecycle positioning rather than functional incompatibility.

The three substitute parts (SPMWH1228FD5WAV0S4, SPMWH1228FD5WAVMS4, SPMWH1228FD5WAVUS4) differ only in packaging configuration and regional supply designation, not in electrical or optical performance.

Parameter Comparison

Parameter	SPMWH3228FD5WAVMSG (Main)	SPMWH1228FD5WAV0S4	SPMWH1228FD5WAVMS4	SPMWH1228FD5WAVUS4
Series	LM281BZ+	LM281B	LM281B	LM281B
Color	White, Warm	White, Warm	White, Warm	White, Warm
CCT (K)	3000	3000	3000	3000
Flux @ 25°C, 150mA (lm)	64 (62–66)	64 (62–66)	64 (62–66)	64 (62–66)
Vf Typical (V)	3.0	3.1	3.1	3.1
Test Current (mA)	150	150	150	150
Maximum Current (mA)	160	160	160	160
Luminous Efficacy (lm/W)	142	138	138	138
CRI	80	80	80	80
Viewing Angle (°)	120	120	120	120
Package / Case	1113 (2835 Metric)	1113 (2835 Metric)	1113 (2835 Metric)	1113 (2835 Metric)
Dimensions (mm)	3.50 × 2.80	3.50 × 2.80	3.50 × 2.80	3.50 × 2.80
Height – Seated Max (mm)	0.75	0.75	0.75	0.75
Thermal Resistance (°C/W)	25	25	25	25
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
MSL	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)
Product Status	Active	Not For New Designs	Not For New Designs	Not For New Designs

Engineering Selection Recommendations

For Active Product Development: The SPMWH3228FD5WAVMSG (LM281BZ+ series, Active status) is the primary selection for new designs. This part maintains current manufacturing support and represents the latest generation within the warm white 3000K 2835 package category.

For Legacy System Maintenance and Field Replacement: The three LM281B series substitutes (SPMWH1228FD5WAV0S4, SPMWH1228FD5WAVMS4, SPMWH1228FD5WAVUS4) are appropriate for maintaining existing installations and replacing failed components in fielded systems. These parts are classified as Not For New Designs but remain functionally equivalent for retrofit applications.

Electrical Compatibility Consideration: The forward voltage difference (3.0V main part vs. 3.1V substitutes) represents a 0.1V variance. This difference is within typical circuit design margins for LED driver circuits and does not require design modification for direct substitution in existing applications.

Luminous Efficacy Variance: The main part delivers 142 lm/W compared to 138 lm/W for substitutes, representing a 2.8% efficiency difference. This variance reflects generational improvement in the LM281BZ+ series and does not affect functional compatibility in applications where absolute brightness is maintained through identical flux output (64 lumens).

Compliance and Environmental Handling: All parts maintain identical RoHS compliance and MSL 2A classification, ensuring equivalent environmental handling requirements and regulatory compliance across substitution scenarios.

Packaging and Supply Designation: The three substitute parts differ only in regional supply designation (0S4, MS4, US4 suffixes) and packaging configuration (Tape & Reel), not in component performance. Selection among these three substitutes should be based on supply chain availability and packaging requirements rather than technical performance.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD5WAV0S4, SPMWH1228FD5WAVMS4, and SPMWH1228FD5WAVUS4 be used interchangeably with SPMWH3228FD5WAVMSG?

A: Yes, these parts are functionally equivalent for direct substitution. All parts deliver identical luminous flux (64 lumens), maintain the same 3000K color temperature, share identical package dimensions (2835 metric), and operate at the same test current (150mA). The forward voltage difference (0.1V) is within acceptable circuit design tolerances. The primary distinction is product lifecycle status: the main part is Active, while substitutes are Not For New Designs.

Q: What is the significance of the "Not For New Designs" status on the substitute parts?

A: This designation indicates that the LM281B series represents an earlier product generation. These parts remain fully functional and are suitable for field replacement and legacy system maintenance. However, for new product development, the LM281BZ+ series (main part) is recommended to ensure access to current manufacturing support and future component availability.

Q: Are there any circuit design modifications required when substituting SPMWH1228FD5WAV0S4 for SPMWH3228FD5WAVMSG?

A: No circuit design modifications are required. The forward voltage difference (3.0V vs. 3.1V) is 0.1V, which is within standard LED driver circuit design margins. Both parts operate at identical test current (150mA) and maximum current (160mA). Direct PCB footprint compatibility is maintained through identical package dimensions and mounting type.

Q: Do the three substitute parts (WAV0S4, WAVMS4, WAVUS4) have different electrical performance?

A: No. The three substitute parts are electrically and optically identical. The suffix designations (0S4, MS4, US4) indicate regional supply designation and packaging configuration (Tape & Reel), not performance differences. Selection among these three should be based on supply chain availability and packaging requirements.

Q: What is the impact of the 2.8% luminous efficacy difference (142 lm/W vs. 138 lm/W)?

A: The efficacy difference reflects generational improvement in the LM281BZ+ series but does not affect functional compatibility. Both the main part and substitutes deliver identical luminous flux output (64 lumens) at the test current (150mA). In applications where absolute brightness is the design requirement, this equivalence is maintained. The efficacy difference becomes relevant only in power consumption analysis for the same light output.

Q: Are there any environmental handling or storage differences between the main part and substitutes?

A: No. All parts maintain identical Moisture Sensitivity Level (MSL 2A, 4 Weeks) and RoHS compliance status. Environmental handling, storage conditions, and regulatory compliance requirements are equivalent across all parts.

Q: Can these parts be used in applications requiring high reliability or automotive qualification?

A: The provided specifications do not include automotive qualification data or high-reliability certifications. Component selection for automotive or high-reliability applications requires verification against specific application standards and qualification requirements beyond the parameters provided in this reference.

Q: What is the difference between the SPMWH3228 and SPMWH1228 base product numbers?

A: The base product numbers reflect series designation: SPMWH3228 corresponds to the LM281BZ+ series (main part, Active status), while SPMWH1228 corresponds to the LM281B series (substitutes, Not For New Designs status). This distinction indicates product lifecycle positioning. Functionally, the parts are equivalent for the specified parameters.

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