SPMWH3228FD5WAWMS3 LED Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD5WAWMS3 is a Samsung Semiconductor warm white surface mount LED in the 2835 metric package (1113 case). This component operates at 2700K color temperature with a forward voltage of 3.1V and test current of 150mA, delivering 59 lumens at 25°C with a color rendering index of 80. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Key Parameters

Parameter	Value	Unit
Series	LM281BZ	—
Color	White, Warm	—
CCT (Correlated Color Temperature)	2700K	K
Flux @ 25°C, 150mA	59	lm
Flux Range	57–61	lm
Forward Voltage (Vf) Typical	3.1	V
Test Current	150	mA
Maximum Current	160	mA
Lumens/Watt @ 150mA	127	lm/W
CRI (Color Rendering Index)	80	—
Viewing Angle	120	°
Package / Case	1113 (2835 Metric)	—
Size / Dimension	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)	—

Substitute Part Grouping Explanation

Substitution of the SPMWH3228FD5WAWMS3 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Color: White, Warm (2700K)
Package / Case: 1113 (2835 Metric)
Mounting Type: Surface Mount
Flux @ 25°C, 150mA: 59 lm (57–61 lm range)
Forward Voltage (Vf) Typical: 3.1V or 3.0V
Test Current: 150mA
Maximum Current: 160mA
CRI: 80
Viewing Angle: 120°
Thermal Resistance: 25°C/W
RoHS Compliance: Yes
MSL: 2A (4 Weeks)

Substitute Parts Identified:

The following Samsung Semiconductor part numbers meet the electrical and mechanical substitution criteria:

SPMWH1228FD5WAW0SC (LM281B+ series, Active status)
SPMWH1228FD5WAWKSC (LM281B+ series, Active status)
SPMWH1228FD5WAWMS3 (LM281B series, Not For New Designs)
SPMWH1228FD5WAWMSC (LM281B+ series, Active status)
SPMWH1228FD5WAWUS3 (LM281B series, Not For New Designs)
SPMWH3228FD5WAW0SE (LM281BZ+ series, Active status)
SPMWH3228FD5WAWKSE (LM281BZ+ series, Active status)
SPMWH3228FD5WAWMSE (LM281BZ+ series, Active status)

All substitute parts share identical package dimensions, thermal characteristics, and optical performance within the specified flux range.

Parameter Comparison

Part Number	Series	Status	Vf (V)	Flux @ 25°C (lm)	lm/W	CCT (K)	CRI	Package	Inventory (Pcs)
SPMWH3228FD5WAWMS3	LM281BZ	Not For New Designs	3.1	59	127	2700	80	2835	904
SPMWH1228FD5WAW0SC	LM281B+	Active	3.1	59	127	2700	80	2835	884
SPMWH1228FD5WAWKSC	LM281B+	Active	3.1	59	127	2700	80	2835	833
SPMWH1228FD5WAWMS3	LM281B	Not For New Designs	3.1	59	127	2700	80	2835	7277
SPMWH1228FD5WAWMSC	LM281B+	Active	3.1	59	127	2700	80	2835	703
SPMWH1228FD5WAWUS3	LM281B	Not For New Designs	3.1	59	127	2700	80	2835	19696
SPMWH3228FD5WAW0SE	LM281BZ+	Active	3.0	59	131	2700	80	2835	913
SPMWH3228FD5WAWKSE	LM281BZ+	Active	3.0	59	131	2700	80	2835	946
SPMWH3228FD5WAWMSE	LM281BZ+	Active	3.0	59	131	2700	80	2835	832

Engineering Selection Recommendations

For New Designs:

Active status parts are recommended for new design implementations. The LM281B+ and LM281BZ+ series parts carry Active product status, indicating ongoing manufacturer support and availability assurance. Among these, SPMWH1228FD5WAWMS3, SPMWH1228FD5WAWMSC, and SPMWH3228FD5WAWMSE represent the highest inventory levels (7277, 703, and 832 units respectively) and provide design flexibility.

For Existing Production / Maintenance:

Parts marked "Not For New Designs" (SPMWH3228FD5WAWMS3, SPMWH1228FD5WAWMS3, SPMWH1228FD5WAWUS3) remain electrically and mechanically equivalent and are suitable for sustaining existing production runs or field replacements where design changes are not feasible. SPMWH1228FD5WAWUS3 offers the largest available inventory (19696 units).

Forward Voltage Consideration:

Parts with Vf = 3.0V (LM281BZ+ series: SPMWH3228FD5WAW0SE, SPMWH3228FD5WAWKSE, SPMWH3228FD5WAWMSE) deliver improved luminous efficacy (131 lm/W versus 127 lm/W) while maintaining identical flux output. These parts are suitable for applications where reduced power consumption is beneficial, provided circuit design accommodates the 0.1V lower forward voltage.

Compliance:

All substitute parts are RoHS Compliant with MSL rating 2A (4 Weeks), matching the original part specification.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD5WAWMS3 directly replace SPMWH3228FD5WAWMS3?

A: Yes. Both parts share identical electrical parameters (3.1V forward voltage, 59 lm flux, 127 lm/W efficacy), optical characteristics (2700K, 80 CRI, 120° viewing angle), and mechanical specifications (2835 package, 0.75mm height, 25°C/W thermal resistance). The base product number difference (SPMWH1228 versus SPMWH3228) reflects internal Samsung classification but does not affect functional equivalence.

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

A: Series designation reflects internal Samsung product evolution. All three series meet the specified electrical and optical parameters for this substitution group. LM281B+ and LM281BZ+ variants carry Active product status, while LM281B and LM281BZ are classified as "Not For New Designs." Functionally, they are equivalent within the parameters provided.

Q: Can I use SPMWH3228FD5WAW0SE (3.0V) in place of SPMWH3228FD5WAWMS3 (3.1V)?

A: Yes, with circuit design verification. The 0.1V lower forward voltage is within acceptable substitution tolerance and delivers superior luminous efficacy (131 lm/W). However, if the circuit is designed with tight voltage regulation or current limiting specific to 3.1V operation, the lower forward voltage may require adjustment to maintain target current and flux output. Verify that the LED driver or current source accommodates the reduced voltage drop.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use the 1113 (2835 Metric) package with identical dimensions (3.50mm × 2.80mm) and maximum seated height (0.75mm). They are mechanically interchangeable on PCB layouts designed for the 2835 footprint.

Q: Which substitute part has the best availability?

A: SPMWH1228FD5WAWUS3 (LM281B series) has the highest inventory level at 19,696 units. For Active status parts, SPMWH1228FD5WAWMS3 (LM281B series) offers 7,277 units.

Q: Do all parts meet RoHS compliance?

A: Yes. All parts listed are RoHS Compliant with Moisture Sensitivity Level 2A (4 Weeks), matching the original SPMWH3228FD5WAWMS3 specification.

Q: What is the significance of the packaging suffix (TR, —)?

A: TR indicates Tape & Reel packaging for automated assembly. Parts listed with "—" for packaging indicate alternative packaging configurations. Both are suitable for production use; selection depends on assembly equipment compatibility and procurement requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message