SPMWH3228FD5WAPMS4 LED Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD5WAPMS4 is a Samsung Semiconductor LM281BZ cool white LED in 2835 metric package (1113 case). This surface mount LED operates at 3.1V forward voltage with 150mA test current, delivering 67 lumens at 25°C and 144 lm/W efficiency. The component features 6500K color temperature, 80 CRI, and 120° viewing angle.

The main part carries a "Not For New Designs" product status. Identifying parametric equivalents with active product status ensures long-term design viability and supply chain continuity for new applications and production runs.

Key Parameters

Parameter	Value	Unit
Color	White, Cool	—
CCT (Correlated Color Temperature)	6500K	K
Flux @ 25°C, 150mA	67 (65–69)	lm
Forward Voltage (Typ)	3.1V	V
Test Current	150	mA
Maximum Current	160	mA
Lumens/Watt @ 150mA	144	lm/W
CRI	80	—
Viewing Angle	120	°
Package / Case	1113 (2835 Metric)	—
Mounting Type	Surface Mount	—
Size	3.50 × 2.80	mm
Height (Max)	0.75	mm
Thermal Resistance	25	°C/W
RoHS Status	Compliant	—
MSL	2A (4 Weeks)	—

Substitute Part Grouping Explanation

Substitution of the SPMWH3228FD5WAPMS4 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Color and CCT: White, Cool 6500K
Luminous flux range: 65–69 lm @ 25°C, 150mA
Test current: 150mA
Maximum current: 160mA
CRI: 80
Viewing angle: 120°
Package: 1113 (2835 Metric)
Mounting: Surface Mount
Physical dimensions: 3.50 × 2.80 mm, height ≤ 0.75 mm
Thermal resistance: 25°C/W
RoHS compliance and MSL rating

Allowable Variation: Forward voltage (Vf) tolerance: The main part specifies 3.1V typical. Substitute parts with 3.0V typical forward voltage remain functionally equivalent within the 150mA test current specification, as both operate within the same luminous flux range (65–69 lm) and deliver identical lm/W performance within measurement tolerance.

All three substitute parts (SPMWH3228FD5WAP0SG, SPMWH3228FD5WAPKSG, SPMWH3228FD5WAPMSG) meet these criteria and are classified as parametric equivalents.

Parameter Comparison

Parameter	SPMWH3228FD5WAPMS4 (Main)	SPMWH3228FD5WAP0SG	SPMWH3228FD5WAPKSG	SPMWH3228FD5WAPMSG
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)	6500	6500	6500	6500
Flux @ 25°C, 150mA (lm)	67 (65–69)	67 (65–69)	67 (65–69)	67 (65–69)
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	144	149	149	149
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 × 2.80	3.50 × 2.80	3.50 × 2.80	3.50 × 2.80
Height Max (mm)	0.75	0.75	0.75	0.75
Thermal Resistance (°C/W)	25	25	25	25
RoHS Status	Compliant	Compliant	Compliant	Compliant
MSL	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)
Inventory (Pcs)	720	697	905	867

Engineering Selection Recommendations

For New Designs: All three substitute parts carry "Active" product status and are suitable for new design implementations. The LM281BZ+ series represents the current production equivalent to the legacy LM281BZ.

Forward Voltage Consideration: The substitute parts operate at 3.0V typical versus 3.1V for the main part. This 0.1V difference results in slightly improved efficiency (149 lm/W versus 144 lm/W) while maintaining identical luminous flux output (67 lm) at the 150mA test current. Circuit designs using current-limiting resistors or constant-current drivers accommodate this variation without modification.

Compliance and Supply Chain: All parts maintain RoHS compliance and identical MSL ratings (2A, 4 Weeks). The substitute parts offer superior long-term availability through active product status.

Inventory Availability: SPMWH3228FD5WAPKSG provides the highest stock level (905 pcs), followed by SPMWH3228FD5WAPMSG (867 pcs) and SPMWH3228FD5WAP0SG (697 pcs).

Frequently Asked Questions (FAQ)

Q: Can SPMWH3228FD5WAP0SG, SPMWH3228FD5WAPKSG, and SPMWH3228FD5WAPMSG be used interchangeably with SPMWH3228FD5WAPMS4?

A: Yes. All three substitute parts are parametric equivalents. They deliver identical luminous flux (67 lm), color temperature (6500K), CRI (80), viewing angle (120°), and package dimensions (2835 metric). The 0.1V forward voltage difference (3.0V vs. 3.1V) is within normal operating tolerance for LED applications using current-limiting circuits.

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

A: The three substitute parts (SPMWH3228FD5WAP0SG, SPMWH3228FD5WAPKSG, SPMWH3228FD5WAPMSG) are identical in electrical and mechanical specifications. The differences in part number suffixes reflect packaging or distribution channel variations. All three are LM281BZ+ series with active product status.

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

A: This designation indicates the LM281BZ series is in end-of-life phase. Samsung has transitioned to the LM281BZ+ series for current production. New designs should specify one of the active substitute parts to ensure long-term supply availability and manufacturing support.

Q: Will the 0.1V forward voltage difference affect my circuit?

A: No. LED circuits using series resistors or constant-current drivers automatically compensate for forward voltage variations within this range. The luminous flux output remains constant at 67 lm across both voltage specifications at 150mA test current.

Q: Are all parts RoHS compliant?

A: Yes. The main part and all three substitutes are RoHS compliant with identical MSL ratings (2A, 4 Weeks).

Q: Which substitute part should I select?

A: All three substitutes are electrically and mechanically equivalent. Selection may be based on inventory availability: SPMWH3228FD5WAPKSG (905 pcs), SPMWH3228FD5WAPMSG (867 pcs), or SPMWH3228FD5WAP0SG (697 pcs).

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