SPMWH3228FD5WAV0S4 Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD5WAV0S4 is a Samsung Semiconductor LM281BZ warm white LED lighting component in 2835 metric package format. This part operates at 3000K correlated color temperature with 3.1V forward voltage and 150mA test current, delivering 64 lumens at 25°C. The component is designated "Not For New Designs," necessitating identification of equivalent and substitute parts for ongoing applications and future design considerations.

Key Parameters

Parameter	Value
Manufacturer Part Number	SPMWH3228FD5WAV0S4
Manufacturer	Samsung Semiconductor, Inc.
Series	LM281BZ
Color / CCT	White, Warm 3000K
Luminous Flux @ 25°C, 150mA	64 lm (62–66 lm range)
Forward Voltage (Vf Typ)	3.1V
Test Current	150mA
Maximum Current	160mA
Lumens/Watt @ 150mA	138 lm/W
Color Rendering Index (CRI)	80
Viewing Angle	120°
Package / Case	1113 (2835 Metric)
Physical Dimensions	3.50mm L × 2.80mm W
Seated Height (Max)	0.75mm
Thermal Resistance	25°C/W
RoHS Compliance	RoHS Compliant
Moisture Sensitivity Level	2A (4 Weeks)
Product Status	Not For New Designs

Substitute Part Grouping Explanation

Substitution of the SPMWH3228FD5WAV0S4 is determined by strict equivalence in electrical and mechanical parameters. The critical parameters for substitution are:

Primary Equivalence Criteria:

Color and CCT: White, Warm 3000K
Luminous Flux @ 25°C: 64 lm (62–66 lm range)
Forward Voltage: 3.1V (±0.1V tolerance typical for LED operation)
Test Current: 150mA
Maximum Current: 160mA
Package: 1113 (2835 Metric)
Physical Dimensions: 3.50mm × 2.80mm
CRI: 80
Viewing Angle: 120°
Compliance: RoHS Compliant, MSL 2A

The substitute parts are grouped into two categories:

Category 1: Direct LM281B Series Equivalents (Different Tape & Reel Designations)

SPMWH1228FD5WAV0S4
SPMWH1228FD5WAVMS4
SPMWH1228FD5WAVUS4

These parts differ only in packaging designation suffix (tape and reel configuration codes: 0S4, MS4, US4) and are all LM281B series with identical electrical characteristics to the main part.

Category 2: LM281BZ+ Series Active Alternatives (Enhanced Efficiency)

SPMWH3228FD5WAV0SG
SPMWH3228FD5WAVKSG
SPMWH3228FD5WAVMSG

These parts are LM281BZ+ series (active product status) with forward voltage of 3V (0.1V lower than the main part) and enhanced lumens/watt efficiency at 142 lm/W compared to 138 lm/W. They maintain identical luminous flux, color, CRI, viewing angle, package type, and physical dimensions.

Parameter Comparison

Parameter	SPMWH3228FD5WAV0S4 (Main)	SPMWH1228FD5WAV0S4	SPMWH1228FD5WAVMS4	SPMWH1228FD5WAVUS4	SPMWH3228FD5WAV0SG (LM281BZ+)	SPMWH3228FD5WAVKSG (LM281BZ+)	SPMWH3228FD5WAVMSG (LM281BZ+)
Series	LM281BZ	LM281B	LM281B	LM281B	LM281BZ+	LM281BZ+	LM281BZ+
Product Status	Not For New Designs	Not For New Designs	Not For New Designs	Not For New Designs	Active	Active	Active
Color / CCT	White, Warm 3000K	White, Warm 3000K	White, Warm 3000K	White, Warm 3000K	White, Warm 3000K	White, Warm 3000K	White, Warm 3000K
Luminous Flux @ 25°C, 150mA	64 lm	64 lm	64 lm	64 lm	64 lm	64 lm	64 lm
Forward Voltage (Vf Typ)	3.1V	3.1V	3.1V	3.1V	3.0V	3.0V	3.0V
Test Current	150mA	150mA	150mA	150mA	150mA	150mA	150mA
Maximum Current	160mA	160mA	160mA	160mA	160mA	160mA	160mA
Lumens/Watt @ 150mA	138 lm/W	138 lm/W	138 lm/W	138 lm/W	142 lm/W	142 lm/W	142 lm/W
CRI	80	80	80	80	80	80	80
Viewing Angle	120°	120°	120°	120°	120°	120°	120°
Package / Case	1113 (2835)	1113 (2835)	1113 (2835)	1113 (2835)	1113 (2835)	1113 (2835)	1113 (2835)
Physical Dimensions	3.50mm × 2.80mm	3.50mm × 2.80mm	3.50mm × 2.80mm	3.50mm × 2.80mm	3.50mm × 2.80mm	3.50mm × 2.80mm	3.50mm × 2.80mm
Seated Height (Max)	0.75mm	0.75mm	0.75mm	0.75mm	0.75mm	0.75mm	0.75mm
Thermal Resistance	25°C/W	25°C/W	25°C/W	25°C/W	25°C/W	25°C/W	25°C/W
RoHS Compliance	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)

Engineering Selection Recommendations

For Direct Replacement (Pin-Compatible Drop-In Substitution): The SPMWH1228FD5WAV0S4, SPMWH1228FD5WAVMS4, and SPMWH1228FD5WAVUS4 are direct equivalents of the main part. These LM281B series components provide identical electrical performance, luminous output, color characteristics, and mechanical fit. The differences in part number designations (0S4, MS4, US4) reflect only tape and reel packaging configurations and do not affect functional performance.

For Design Transition to Active Product Status: The SPMWH3228FD5WAV0SG, SPMWH3228FD5WAVKSG, and SPMWH3228FD5WAVMSG are recommended when transitioning from the "Not For New Designs" status of the original part. These LM281BZ+ series components are currently active products with the same 3000K warm white specification, identical 64 lm luminous flux, and equivalent viewing angle, package, and compliance certifications. The 0.1V reduction in forward voltage (3.0V vs. 3.1V) results in 4 lm/W improved efficiency. Designs with existing current-limiting resistors will continue to function without circuit modification due to the minimal voltage difference.

Compliance Basis: All substitute parts maintain RoHS compliance and MSL 2A moisture sensitivity rating, ensuring compatibility with manufacturing processes and supply chain handling requirements identical to the main part.

Frequently Asked Questions (FAQ)

Q: Can I directly substitute SPMWH1228FD5WAV0S4 for SPMWH3228FD5WAV0S4 without modifying my design?

A: Yes. The SPMWH1228FD5WAV0S4 is a direct equivalent with identical electrical characteristics (3.1V forward voltage, 150mA test current, 64 lm output), color specification (3000K warm white), mechanical dimensions (2835 package, 3.50mm × 2.80mm), and compliance status. The TR (Tape & Reel) packaging designation is the only difference.

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

A: The primary difference is product status: LM281B parts are "Not For New Designs" (matching the main part status), while LM281BZ+ parts are active products. Electrically, the LM281BZ+ variants have a forward voltage of 3.0V (versus 3.1V) and deliver 142 lm/W efficiency (versus 138 lm/W). Luminous flux at 150mA test current remains 64 lm for all variants. The 0.1V voltage reduction is within typical LED operating tolerances and causes no functional impact in current-regulated designs.

Q: Are the packaging designations (0S4, MS4, US4, 0SG, KSG, MSG) functionally significant?

A: The suffixes denote different tape and reel configurations used for pick-and-place manufacturing equipment. They do not affect electrical performance, luminous output, color characteristics, or mechanical fit. Selection between these variants depends on supply chain availability and manufacturing equipment compatibility.

Q: Can I use the LM281BZ+ parts as substitutes in designs originally specified for the LM281BZ?

A: Yes. The LM281BZ+ parts maintain electrical and optical equivalence within acceptable engineering tolerances. The forward voltage reduction of 0.1V will result in slightly lower power dissipation (approximately 0.015W reduction at 150mA), and the improved efficiency provides superior lumens/watt performance. These changes are beneficial in most applications and do not require circuit redesign.

Q: Do all substitute parts have the same moisture sensitivity level and RoHS status?

A: Yes. All listed equivalents and substitutes maintain MSL 2A (4 Weeks) moisture sensitivity rating and full RoHS compliance. Handling and storage requirements are identical across all variants.

Q: What is the significance of the 120° viewing angle across all listed parts?

A: The 120° viewing angle is consistent across all main and substitute parts, indicating identical light distribution characteristics. This specification is relevant for optical system design and defines the angular field of view for the LED component. Substitution does not alter this parameter.

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