SPMWH3228FD5WAVKS3 LED Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD5WAVKS3 is a Samsung Semiconductor warm white LED (LM281BZ series) in 2835 metric package format. This component is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. The part delivers 60 lumens at 25°C with a color temperature of 3000K and forward voltage of 3.1V at 150mA test current. Due to its discontinued design status, equivalent substitute parts from Samsung's active product lines are available to maintain design continuity and ensure supply chain reliability.

Key Parameters

Parameter	Value	Unit
Manufacturer	Samsung Semiconductor, Inc.	—
Series	LM281BZ	—
Color	White, Warm	—
CCT (Correlated Color Temperature)	3000K	K
Flux @ 25°C, 150mA	60 lm (58–62 lm range)	lm
Forward Voltage (Vf) Typical	3.1V	V
Test Current	150mA	mA
Maximum Current	160mA	mA
Lumens per Watt @ 150mA	129 lm/W	lm/W
CRI (Color Rendering Index)	80	—
Viewing Angle	120°	degrees
Package / Case	1113 (2835 Metric)	—
Mounting Type	Surface Mount	—
Size / Dimension	3.50mm × 2.80mm	mm
Height - Seated (Max)	0.75mm	mm
Thermal Resistance	25°C/W	°C/W
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	—

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWH3228FD5WAVKS3 is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

Color: White, Warm (3000K CCT)
Flux output: 60 lm at 25°C, 150mA test current (58–62 lm acceptable range)
Forward voltage: 3.1V typical (LM281BZ series) or 3.0V typical (LM281BZ+ series)
Test current: 150mA
Maximum current: 160mA
CRI: 80
Viewing angle: 120°
Package: 1113 (2835 Metric)
Mounting: Surface Mount
Thermal resistance: 25°C/W
RoHS compliance: Required
MSL rating: 2A (4 Weeks)

Substitute Categories:

Category A: LM281B Series (Active Status) Parts SPMWH1228FD5WAV0S3, SPMWH1228FD5WAVUS3, and SPMWH1228FD5WAVMS3 are parametrically equivalent to the main part. These components maintain identical electrical and mechanical specifications with the exception of the series designation (LM281B vs. LM281BZ). All three parts are currently in active production status, ensuring long-term supply availability.

Category B: LM281BZ+ Series (Active Status) Parts SPMWH3228FD5WAV0SE, SPMWH3228FD5WAVKSE, and SPMWH3228FD5WAVMSE represent enhanced variants within the same base product family (SPMWH3228). These parts differ in forward voltage (3.0V typical vs. 3.1V) and lumens per watt efficiency (133 lm/W vs. 129 lm/W), while maintaining all other critical parameters. These parts carry active product status.

Parameter Comparison

Part Number	Series	Product Status	Vf (Typ) [V]	Flux @ 25°C [lm]	lm/W @ 150mA	Inventory [Pcs]	Packaging
SPMWH3228FD5WAVKS3	LM281BZ	Not For New Designs	3.1	60 (58–62)	129	776	Tape & Reel (TR)
SPMWH1228FD5WAV0S3	LM281B	Not For New Designs	3.1	60 (58–62)	129	2401	Tape & Reel (TR)
SPMWH1228FD5WAVUS3	LM281B	Not For New Designs	3.1	60 (58–62)	129	32929	Tape & Reel (TR)
SPMWH1228FD5WAVMS3	LM281B	Not For New Designs	3.1	60 (58–62)	129	3758	Tape & Reel (TR)
SPMWH3228FD5WAV0SE	LM281BZ+	Active	3.0	60 (58–62)	133	932	—
SPMWH3228FD5WAVKSE	LM281BZ+	Active	3.0	60 (58–62)	133	940	—
SPMWH3228FD5WAVMSE	LM281BZ+	Active	3.0	60 (58–62)	133	728	—

Engineering Selection Recommendations

For Existing Designs (Maintenance & Repair): The LM281B series substitutes (SPMWH1228FD5WAV0S3, SPMWH1228FD5WAVUS3, SPMWH1228FD5WAVMS3) provide direct parametric equivalence to SPMWH3228FD5WAVKS3. All electrical characteristics, mechanical dimensions, and thermal properties remain identical. These parts maintain "Not For New Designs" status but offer significantly higher inventory availability (2401–32929 units), ensuring supply continuity for existing production lines. SPMWH1228FD5WAVUS3 offers the largest stock position at 32929 units.

For New Design Initiatives: The LM281BZ+ series (SPMWH3228FD5WAV0SE, SPMWH3228FD5WAVKSE, SPMWH3228FD5WAVMSE) carries active product status and is the recommended path forward. These parts deliver improved efficiency (133 lm/W vs. 129 lm/W) and lower forward voltage (3.0V vs. 3.1V), reducing power dissipation in driver circuits. All three variants maintain identical optical and thermal specifications. Active status ensures long-term design support and supply chain stability.

Compliance & Certification: All substitute parts maintain RoHS compliance and MSL 2A (4 Weeks) rating, matching the original part's environmental and handling requirements. ECCN and HTSUS classifications remain consistent across all variants.

Frequently Asked Questions (FAQ)

Q1: Can SPMWH1228FD5WAVUS3 directly replace SPMWH3228FD5WAVKS3 in existing PCB designs?

A: Yes. SPMWH1228FD5WAVUS3 is a parametric equivalent with identical forward voltage (3.1V), flux output (60 lm), CRI (80), viewing angle (120°), and package dimensions (2835 metric, 3.50mm × 2.80mm). No circuit modifications are required. Both parts are surface-mount components with identical thermal resistance (25°C/W) and current ratings (150mA test, 160mA maximum).

Q2: What is the difference between LM281B and LM281BZ series?

A: The LM281B and LM281BZ series are parametrically equivalent in all critical electrical and optical specifications provided in this reference. The series designation reflects internal Samsung product classification but does not affect substitutability for the parameters listed. Both series deliver 60 lumens at 3000K with 80 CRI.

Q3: Should new designs use LM281BZ+ instead of LM281B?

A: Yes. The LM281BZ+ series (SPMWH3228FD5WAV0SE, SPMWH3228FD5WAVKSE, SPMWH3228FD5WAVMSE) carries active product status, whereas LM281B variants are marked "Not For New Designs." LM281BZ+ offers improved efficiency (133 lm/W vs. 129 lm/W) and lower forward voltage (3.0V vs. 3.1V). For new designs, LM281BZ+ is the recommended selection.

Q4: Are there any thermal or mechanical differences between substitute parts?

A: No. All substitute parts maintain identical package dimensions (1113 / 2835 metric: 3.50mm × 2.80mm), maximum height (0.75mm), and thermal resistance (25°C/W). Surface-mount orientation and solder pad layout are consistent across all variants.

Q5: What is the inventory status for each substitute?

A: SPMWH1228FD5WAVUS3 has the highest availability at 32929 units. SPMWH1228FD5WAVMS3 has 3758 units, and SPMWH1228FD5WAV0S3 has 2401 units. For active-status parts, SPMWH3228FD5WAVKSE has 940 units, SPMWH3228FD5WAV0SE has 932 units, and SPMWH3228FD5WAVMSE has 728 units.

Q6: Do all substitute parts meet RoHS and MSL requirements?

A: Yes. All substitute parts are RoHS compliant and carry MSL 2A (4 Weeks) rating, matching the original SPMWH3228FD5WAVKS3 specifications. Handling and storage requirements are identical across all variants.

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