SPMWH3228FD5WAPMS2 LED Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD5WAPMS2 is a Samsung Semiconductor LM281BZ cool white LED in 2835 metric package (1113 case code) designed for surface mount lighting applications. This part operates at 3.1V forward voltage with 150mA test current, delivering 59 lumens at 25°C with a color temperature of 6500K and 80 CRI. The product is classified as Not For New Designs, indicating it has been superseded in Samsung's product portfolio. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and component sourcing continuity.

Key Parameters

Parameter	Value	Unit
Series	LM281BZ	-
Color	White, Cool	-
CCT (Correlated Color Temperature)	6500K	K
Flux @ 25°C, 150mA	59 (57-61)	lm
Forward Voltage (Typ)	3.1	V
Test Current	150	mA
Maximum Current	160	mA
Lumens/Watt @ 150mA	127	lm/W
CRI	80	-
Viewing Angle	120	°
Package / Case	1113 (2835 Metric)	-
Size	3.50 x 2.80	mm
Height (Max)	0.75	mm
Thermal Resistance	25	°C/W
RoHS Status	RoHS Compliant	-
MSL Rating	2A (4 Weeks)	-

Substitute Part Grouping Explanation

Substitute parts for SPMWH3228FD5WAPMS2 are identified based on the following critical parameters that must remain constant or within acceptable tolerances:

Fixed Parameters (Must Match Exactly):

Color: White, Cool
CCT: 6500K
CRI: 80
Package / Case: 1113 (2835 Metric)
Mounting Type: Surface Mount
Size / Dimension: 3.50mm x 2.80mm
Height (Max): 0.75mm
Thermal Resistance: 25°C/W
RoHS Status: RoHS Compliant
MSL Rating: 2A (4 Weeks)

Electrical Parameters (Acceptable Variation):

Test Current: 150mA (identical across all parts)
Maximum Current: 160mA (identical across all parts)
Flux @ 25°C: 59lm (57-61lm range, identical across all parts)
Viewing Angle: 120° (identical across all parts)

Variable Parameters (Substitution Basis):

Forward Voltage (Typ): 3.1V (main part) vs. 3.0V (substitute parts)
Lumens/Watt: 127 lm/W (main part) vs. 131 lm/W (substitute parts)
Series: LM281BZ (main part) vs. LM281BZ+ (substitute parts)
Product Status: Not For New Designs (main part) vs. Active (substitute parts)

The three substitute parts (SPMWH3228FD5WAP0SC, SPMWH3228FD5WAPKSC, SPMWH3228FD5WAPMSC) represent the active production equivalents of the LM281BZ series. All three substitute parts are LM281BZ+ variants with improved efficiency (131 lm/W vs. 127 lm/W) and slightly lower forward voltage (3.0V vs. 3.1V), while maintaining identical optical and thermal characteristics.

Parameter Comparison

Parameter	SPMWH3228FD5WAPMS2 (Main)	SPMWH3228FD5WAP0SC	SPMWH3228FD5WAPKSC	SPMWH3228FD5WAPMSC
Series	LM281BZ	LM281BZ+	LM281BZ+	LM281BZ+
Product Status	Not For New Designs	Active	Active	Active
Color	White, Cool	White, Cool	White, Cool	White, Cool
CCT (K)	6500K	6500K	6500K	6500K
Flux @ 25°C, 150mA (lm)	59 (57-61)	59 (57-61)	59 (57-61)	59 (57-61)
Forward Voltage (Typ) (V)	3.1	3.0	3.0	3.0
Test Current (mA)	150	150	150	150
Maximum Current (mA)	160	160	160	160
Lumens/Watt @ 150mA (lm/W)	127	131	131	131
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)
Size (mm)	3.50 x 2.80	3.50 x 2.80	3.50 x 2.80	3.50 x 2.80
Height (Max) (mm)	0.75	0.75	0.75	0.75
Thermal Resistance (°C/W)	25	25	25	25
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
MSL Rating	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)

Engineering Selection Recommendations

The SPMWH3228FD5WAPMS2 is classified as Not For New Designs. For ongoing production and maintenance applications requiring this LED specification, the three substitute parts represent the active production equivalents from Samsung Semiconductor:

SPMWH3228FD5WAP0SC, SPMWH3228FD5WAPKSC, and SPMWH3228FD5WAPMSC are all LM281BZ+ series parts with Active product status. These substitutes maintain identical optical output (59 lumens at 25°C, 6500K CCT, 80 CRI, 120° viewing angle), thermal characteristics (25°C/W), and mechanical compatibility (1113/2835 package, 3.50 x 2.80 x 0.75mm).

The primary electrical differences are:

Forward voltage reduced from 3.1V to 3.0V
Efficiency improved from 127 lm/W to 131 lm/W

Both differences favor the substitute parts. The lower forward voltage reduces power dissipation in series-limiting circuits, while the higher efficiency represents improved LED performance. All substitute parts carry RoHS Compliant certification and 2A MSL rating identical to the main part.

The three substitute part numbers differ only in packaging configuration (indicated by the suffix codes 0SC, KSC, and MSC). Selection among these three should be based on packaging availability and supply chain requirements, as electrical and optical specifications are identical.

Frequently Asked Questions (FAQ)

Q: Can SPMWH3228FD5WAP0SC, SPMWH3228FD5WAPKSC, and SPMWH3228FD5WAPMSC be used interchangeably with SPMWH3228FD5WAPMS2?

A: Yes. All three substitute parts are parametric equivalents with identical optical output (59 lumens), color temperature (6500K), CRI (80), viewing angle (120°), and mechanical dimensions (3.50 x 2.80 x 0.75mm). The forward voltage difference (3.0V vs. 3.1V) is within normal LED manufacturing tolerance and improves circuit efficiency.

Q: What is the difference between the three substitute part numbers?

A: SPMWH3228FD5WAP0SC, SPMWH3228FD5WAPKSC, and SPMWH3228FD5WAPMSC differ only in packaging configuration, indicated by the suffix codes (0SC, KSC, MSC). Electrical and optical specifications are identical across all three parts.

Q: Why is the forward voltage lower in the substitute parts?

A: The LM281BZ+ series represents an improved generation of the LM281BZ. The 0.1V reduction in forward voltage (from 3.1V to 3.0V) reflects manufacturing improvements and does not affect optical performance. This reduction decreases power dissipation in current-limiting circuits.

Q: Are the substitute parts RoHS compliant?

A: Yes. All three substitute parts (SPMWH3228FD5WAP0SC, SPMWH3228FD5WAPKSC, SPMWH3228FD5WAPMSC) carry RoHS Compliant certification identical to the main part SPMWH3228FD5WAPMS2.

Q: What is the MSL rating for these parts?

A: All parts, including the main part and all three substitutes, carry MSL rating 2A (4 Weeks), indicating moisture sensitivity level 2 with a 4-week floor life after bag opening.

Q: Can I use these LEDs in new designs?

A: The main part SPMWH3228FD5WAPMS2 is Not For New Designs. The three substitute parts (SPMWH3228FD5WAP0SC, SPMWH3228FD5WAPKSC, SPMWH3228FD5WAPMSC) are Active status and are suitable for new designs.

Q: What is the thermal resistance of these LEDs?

A: All parts have thermal resistance of 25°C/W, indicating identical thermal performance and heat dissipation characteristics.

Q: Are the package dimensions identical?

A: Yes. All parts use the 1113 (2835 Metric) package with dimensions 3.50mm length x 2.80mm width x 0.75mm maximum height, ensuring identical PCB footprint and assembly compatibility.

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