SPMWHT541ML5XAWGS5 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541ML5XAWGS5 is a Samsung Semiconductor warm white LED in the LM561C series, specified for 2700K color temperature with 4-SMD flat lead surface mount packaging (5630 form factor). This component delivers 33 lumens at 65mA test current with a forward voltage of 2.75V and 120° viewing angle, suitable for warm white lighting applications requiring high color rendering index (CRI 80).

The main part carries a "Not For New Designs" product status, indicating Samsung has transitioned this specific part number to newer alternatives. Equivalent and substitute parts are available within the LM561C and LM561B Plus series to maintain design compatibility while accessing active production inventory.

Key Parameters

Parameter	Value	Unit
Series	LM561C	—
Color / CCT	White, Warm / 2700K	—
Flux @ 25°C, 65mA	33 (32–34)	lm
Forward Voltage (Typ)	2.75	V
Test Current	65	mA
Maximum Current	200	mA
Lumens/Watt @ 65mA	185	lm/W
CRI	80	—
Viewing Angle	120	°
Package / Case	4-SMD, Flat Leads	—
Supplier Device Package	5630	—
Dimensions (L × W)	5.00 × 3.00	mm
Height (Max)	0.80	mm
Thermal Resistance	14	°C/W
RoHS Status	RoHS Compliant	—
MSL	2A (4 Weeks)	—

Substitute Part Grouping Explanation

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

Primary Substitution Criteria (Must Match):

Color and CCT: White, Warm 2700K
Viewing Angle: 120°
Package / Case: 4-SMD, Flat Leads
Supplier Device Package: 5630
Mounting Type: Surface Mount
CRI: 80
MSL: 2A (4 Weeks)

Secondary Compatibility Parameters (Allowable Variation):

Forward Voltage (Vf): 2.75V (LM561C) or 2.95V (LM561B Plus) — both acceptable for warm white 2700K applications
Flux Output: 33 lm nominal (32–34 lm range) — maintained across all substitutes
Test Current: 65mA standard
Maximum Current: 180–200mA range acceptable
Lumens/Watt: 162–185 lm/W range acceptable
Thermal Resistance: 12–15°C/W range acceptable
Dimensions: 5.00 × 3.00 mm (LM561C) or 5.60 × 3.00 mm (LM561B Plus) — both fit 5630 package specification

Series Grouping:

LM561C Group: SPMWHT541ML5XAW0S5, SPMWHT541ML5XAWKS5, SPMWHT541ML5XAWMS5, SPMWHT541ML5XAWUS5 — Direct parametric equivalents with identical electrical performance
LM561B Plus Group: SPMWHT541MP5WAW0S5, SPMWHT541MP5WAWKS5, SPMWHT541MP5WAWMS5, SPMWHT541MP5WAWNS5, SPMWHT541MP5WAWUS5 — Higher forward voltage (2.95V) but equivalent flux output and CRI

Parameter Comparison

Part Number	Series	Vf (Typ) [V]	Flux @ 65mA [lm]	lm/W @ 65mA	Imax [mA]	Thermal Resistance [°C/W]	Dimensions L×W [mm]	Product Status	Inventory [Pcs]
SPMWHT541ML5XAWGS5	LM561C	2.75	33	185	200	14	5.00 × 3.00	Not For New Designs	674
SPMWHT541ML5XAW0S5	LM561C	2.75	33	185	200	12	5.00 × 3.00	Active	1095
SPMWHT541ML5XAWKS5	LM561C	2.75	33	185	200	12	5.00 × 3.00	Active	1020
SPMWHT541ML5XAWMS5	LM561C	2.75	33	184	200	12	5.00 × 3.00	Active	1652
SPMWHT541ML5XAWUS5	LM561C	2.75	33	185	200	12	5.00 × 3.00	Active	746
SPMWHT541MP5WAW0S5	LM561B Plus	2.95	33	172	180	15	5.00 × 3.00	Active	741
SPMWHT541MP5WAWKS5	LM561B Plus	2.95	33	172	180	15	5.00 × 3.00	Active	988
SPMWHT541MP5WAWMS5	LM561B Plus	2.95	33	172	180	15	5.00 × 3.00	Active	23477
SPMWHT541MP5WAWNS5	LM561B Plus	2.95	33	172	180	15	5.00 × 3.00	Active	631
SPMWHT541MP5WAWUS5	LM561B Plus	2.95	33	172	180	15	5.00 × 3.00	Not For New Designs	14012
SPMWHT541MP5WAWMS4	LM561B Plus	2.95	31	162	180	15	5.60 × 3.00	Active	25996

Engineering Selection Recommendations

For Active Production Designs:

Select from the LM561C Active group (SPMWHT541ML5XAW0S5, SPMWHT541ML5XAWKS5, SPMWHT541ML5XAWMS5, SPMWHT541ML5XAWUS5) when direct parametric equivalence to SPMWHT541ML5XAWGS5 is required. These parts maintain identical electrical specifications (2.75V Vf, 185 lm/W, 200mA max) with improved thermal resistance (12°C/W vs. 14°C/W) and active product status. SPMWHT541ML5XAWMS5 offers the highest inventory (1652 pcs).

For Forward Voltage Tolerance Applications:

The LM561B Plus series (SPMWHT541MP5WAW0S5, SPMWHT541MP5WAWKS5, SPMWHT541MP5WAWMS5, SPMWHT541MP5WAWNS5) provides equivalent 33 lm flux output and 2700K CCT with higher forward voltage (2.95V). These are suitable for designs where the additional 0.20V voltage drop is acceptable. SPMWHT541MP5WAWMS5 provides maximum inventory (23477 pcs) with Active status.

Compliance Considerations:

All substitute parts maintain RoHS compliance and 2A MSL rating. SPMWHT541ML5XAWMS5 and SPMWHT541ML5XAWUS5 carry ROHS3 certification. SPMWHT541ML5XAWUS5 includes REACH Unaffected status.

Avoid for New Designs:

SPMWHT541MP5WAWUS5 carries "Not For New Designs" status despite high inventory (14012 pcs). Use only for legacy design maintenance or existing production continuity.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541ML5XAWGS5 be directly replaced with SPMWHT541ML5XAW0S5?

A: Yes. Both are LM561C series with identical electrical specifications: 2.75V Vf, 33 lm flux, 185 lm/W efficiency, 200mA maximum current, 120° viewing angle, and 5630 package. SPMWHT541ML5XAW0S5 has improved thermal resistance (12°C/W vs. 14°C/W) and Active product status.

Q: What is the difference between LM561C and LM561B Plus substitutes?

A: The primary difference is forward voltage: LM561C operates at 2.75V while LM561B Plus operates at 2.95V. Both deliver 33 lm at 65mA test current and 2700K color temperature. LM561B Plus has lower maximum current rating (180mA vs. 200mA) and slightly lower efficiency (172 lm/W vs. 185 lm/W). Select LM561C for designs requiring lower forward voltage; select LM561B Plus only if your circuit design accommodates the higher voltage drop.

Q: Are all substitute parts compatible with the same PCB layout?

A: Yes, for LM561C substitutes (SPMWHT541ML5XAW0S5, SPMWHT541ML5XAWKS5, SPMWHT541ML5XAWMS5, SPMWHT541ML5XAWUS5). All share identical 5.00 × 3.00 mm dimensions and 0.80 mm height. LM561B Plus parts also use 5.00 × 3.00 mm dimensions except SPMWHT541MP5WAWMS4, which is 5.60 × 3.00 mm and requires layout verification.

Q: Which substitute offers the best inventory availability?

A: SPMWHT541MP5WAWMS5 (LM561B Plus) has the highest inventory at 23477 pcs with Active status. For LM561C equivalents, SPMWHT541ML5XAWMS5 provides 1652 pcs.

Q: Can SPMWHT541MP5WAWMS4 be used as a substitute?

A: SPMWHT541MP5WAWMS4 is functionally compatible for warm white 2700K applications but differs in two aspects: (1) larger length dimension (5.60 mm vs. 5.00 mm), requiring PCB layout verification; (2) lower flux output (31 lm vs. 33 lm) and efficiency (162 lm/W vs. 185 lm/W). Use only if layout accommodates the larger footprint and lower light output is acceptable.

Q: What is the thermal resistance difference and does it matter?

A: LM561C Active parts have 12°C/W thermal resistance versus 14°C/W for the main part and 15°C/W for LM561B Plus. Lower thermal resistance improves heat dissipation. For standard applications, this difference is not critical; for high-current or thermally constrained designs, LM561C parts with 12°C/W are preferred.

Q: Are there RoHS compliance differences between substitutes?

A: Most parts are RoHS Compliant. SPMWHT541ML5XAWMS5 and SPMWHT541ML5XAWUS5 carry ROHS3 certification (more stringent). SPMWHT541ML5XAWUS5 additionally includes REACH Unaffected status. For regulated applications, verify your specific compliance requirements.

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