SPMWH1228FD5WAPUS4 Equivalent & Substitute Parts

Part Overview

The SPMWH1228FD5WAPUS4 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 67 lumens at 25°C and 150mA test current. The product status is listed as Not For New Designs, making identification of active equivalent alternatives essential for ongoing production and new design initiatives.

Key Parameters

Parameter	Value
Color	White, Cool
CCT (K)	6500K
Flux @ 25°C, Current - Test	67lm (65lm ~ 69lm)
Current - Test	150mA
Voltage - Forward (Vf) (Typ)	3.1V
Lumens/Watt @ Current - Test	144 lm/W
CRI (Color Rendering Index)	80
Current - Max	160mA
Viewing Angle	120°
Package / Case	1113 (2835 Metric)
Size / Dimension	0.138" L x 0.110" W (3.50mm x 2.80mm)
Height - Seated (Max)	0.030" (0.75mm)
Thermal Resistance of Package	25°C/W
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	2A (4 Weeks)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment across the following critical parameters:

Parametric Equivalents (SPMWH3228FD5WAP0SG, SPMWH3228FD5WAPKSG, SPMWH3228FD5WAPMSG):

Color: White, Cool (6500K)
Flux @ 25°C: 67lm (65lm ~ 69lm)
Current - Test: 150mA
CRI: 80
Current - Max: 160mA
Viewing Angle: 120°
Package / Case: 1113 (2835 Metric)
Size / Dimension: 0.138" L x 0.110" W (3.50mm x 2.80mm)
Height - Seated (Max): 0.030" (0.75mm)
Thermal Resistance: 25°C/W
RoHS Status: RoHS Compliant
MSL: 2A (4 Weeks)

These parts differ only in forward voltage (3.0V vs 3.1V) and efficiency (149 lm/W vs 144 lm/W), with all three substitute parts carrying Active product status.

Similar Part (BXEN-65E-21M-3A-00-0-0):

Color: White, Cool (6500K)
Flux @ 25°C: 66lm (Typ)
Current - Test: 150mA
Voltage - Forward (Vf) (Typ): 3.1V
CRI: 80
Package / Case: 1113 (2835 Metric)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

This Bridgelux part maintains electrical and optical compatibility with minor variations in viewing angle (118° vs 120°), physical dimensions, and thermal characteristics.

Parameter Comparison

Parameter	SPMWH1228FD5WAPUS4 (Main)	SPMWH3228FD5WAP0SG	SPMWH3228FD5WAPKSG	SPMWH3228FD5WAPMSG	BXEN-65E-21M-3A-00-0-0
Manufacturer	Samsung Semiconductor, Inc.	Samsung Semiconductor, Inc.	Samsung Semiconductor, Inc.	Samsung Semiconductor, Inc.	Bridgelux
Series	LM281B	LM281BZ+	LM281BZ+	LM281BZ+	2835
Product Status	Not For New Designs	Active	Active	Active	Active
Color	White, Cool	White, Cool	White, Cool	White, Cool	White, Cool
CCT (K)	6500K	6500K	6500K	6500K	6500K
Flux @ 25°C, Current - Test	67lm (65lm ~ 69lm)	67lm (65lm ~ 69lm)	67lm (65lm ~ 69lm)	67lm (65lm ~ 69lm)	66lm (Typ)
Current - Test	150mA	150mA	150mA	150mA	150mA
Voltage - Forward (Vf) (Typ)	3.1V	3.0V	3.0V	3.0V	3.1V
Lumens/Watt @ Current - Test	144 lm/W	149 lm/W	149 lm/W	149 lm/W	142 lm/W
CRI (Color Rendering Index)	80	80	80	80	80
Current - Max	160mA	160mA	160mA	160mA	150mA
Viewing Angle	120°	120°	120°	120°	118°
Package / Case	1113 (2835 Metric)	1113 (2835 Metric)	1113 (2835 Metric)	1113 (2835 Metric)	1113 (2835 Metric)
Size / Dimension	0.138" L x 0.110" W (3.50mm x 2.80mm)	0.138" L x 0.110" W (3.50mm x 2.80mm)	0.138" L x 0.110" W (3.50mm x 2.80mm)	0.138" L x 0.110" W (3.50mm x 2.80mm)	0.108" L x 0.134" W (2.74mm x 3.40mm)
Height - Seated (Max)	0.030" (0.75mm)	0.030" (0.75mm)	0.030" (0.75mm)	0.030" (0.75mm)	0.028" (0.70mm)
Thermal Resistance of Package	25°C/W	25°C/W	25°C/W	25°C/W	Not specified
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	3 (168 Hours)

Engineering Selection Recommendations

For Active Product Status Requirements:

The three Samsung LM281BZ+ parametric equivalents (SPMWH3228FD5WAP0SG, SPMWH3228FD5WAPKSG, SPMWH3228FD5WAPMSG) carry Active product status and are direct functional replacements for the SPMWH1228FD5WAPUS4. These parts maintain identical optical output (67lm at 150mA), color temperature (6500K), CRI (80), viewing angle (120°), package dimensions, and thermal characteristics. The forward voltage reduction from 3.1V to 3.0V results in improved efficiency (149 lm/W vs 144 lm/W), reducing power dissipation in driver circuits. All three variants comply with RoHS and maintain 2A MSL classification.

For Cross-Manufacturer Compatibility:

The Bridgelux BXEN-65E-21M-3A-00-0-0 provides an alternative from a different manufacturer while maintaining 6500K color temperature, 80 CRI, and 150mA test current. This part operates at 3.1V forward voltage matching the original specification and delivers 66lm typical output. Physical dimensions differ slightly (2.74mm x 3.40mm vs 3.50mm x 2.80mm), and the viewing angle is 118° versus 120°. The Bridgelux part carries ROHS3 compliance and 3 MSL classification (168 Hours), requiring different moisture handling protocols compared to the 2A MSL Samsung alternatives.

Compliance Considerations:

All substitute parts maintain RoHS compliance suitable for regulated markets. The Samsung LM281BZ+ variants preserve identical MSL classification (2A, 4 Weeks) with the original part, simplifying supply chain and storage procedures. The Bridgelux alternative requires MSL 3 handling (168 Hours), necessitating adjusted moisture control measures during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can SPMWH3228FD5WAP0SG, SPMWH3228FD5WAPKSG, and SPMWH3228FD5WAPMSG be used interchangeably with SPMWH1228FD5WAPUS4?

A: Yes. These three Samsung LM281BZ+ parts are parametric equivalents with identical optical output (67lm), color temperature (6500K), CRI (80), current rating (150mA test, 160mA max), viewing angle (120°), package dimensions (1113/2835 metric), and thermal resistance (25°C/W). The forward voltage difference (3.0V vs 3.1V) is within acceptable circuit design margins and improves efficiency. All three carry Active product status.

Q: What is the difference between the three Samsung substitute parts?

A: SPMWH3228FD5WAP0SG, SPMWH3228FD5WAPKSG, and SPMWH3228FD5WAPMSG are electrically and optically identical. The part number suffixes indicate different packaging or distribution channel designations. All three deliver 67lm at 150mA, operate at 3.0V forward voltage, and achieve 149 lm/W efficiency.

Q: Is the Bridgelux BXEN-65E-21M-3A-00-0-0 a direct replacement?

A: The Bridgelux part is functionally compatible for 6500K cool white lighting applications with 80 CRI and 150mA operation. However, physical dimensions differ (2.74mm x 3.40mm vs 3.50mm x 2.80mm), viewing angle is 118° instead of 120°, and MSL classification is 3 (168 Hours) rather than 2A (4 Weeks). PCB layout verification and moisture handling procedure updates are required.

Q: Why does the main part carry "Not For New Designs" status?

A: The SPMWH1228FD5WAPUS4 (LM281B series) is superseded by the LM281BZ+ series, represented by the three Samsung substitute parts. New designs should incorporate the active LM281BZ+ alternatives to ensure long-term supply availability and benefit from improved efficiency.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on matching color (White, Cool 6500K), luminous flux (67lm at 25°C, 150mA), CRI (80), forward voltage compatibility (3.0V-3.1V range), maximum current (160mA), viewing angle (120°), package type (1113/2835 metric), and thermal resistance (25°C/W). Compliance certifications (RoHS, MSL) must also align with application requirements.

Q: Are there storage or handling differences between these parts?

A: Samsung LM281B and LM281BZ+ parts (SPMWH1228FD5WAPUS4 and the three SPMWH3228 variants) all require MSL 2A handling (4 Weeks). The Bridgelux BXEN-65E-21M-3A-00-0-0 requires MSL 3 handling (168 Hours), necessitating more frequent desiccant bag replacement and shorter shelf life management.

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