SPMWHT541MP5WAQNS5 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAQNS5 is a Samsung Semiconductor LM561B Plus white LED with cool color temperature of 5700K, designed for surface mount applications in 5630 package format. This component operates at 2.95V forward voltage with 65mA test current, delivering 36 lumens at 25°C and 188 lumens per watt efficiency. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and replacement applications.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	SPMWHT541MP5WAQNS5	—
Series	LM561B Plus	—
Product Status	Obsolete	—
Color	White, Cool	—
CCT (Correlated Color Temperature)	5700K	K
Flux @ 25°C, 65mA	36	lm
Forward Voltage (Vf) Typical	2.95	V
Test Current	65	mA
Maximum Current	180	mA
Lumens/Watt @ 65mA	188	lm/W
CRI (Color Rendering Index)	80	—
Viewing Angle	120	°
Mounting Type	Surface Mount	—
Package / Case	4-SMD, Flat Leads	—
Supplier Device Package	5630	—
Size / Dimension	5.00 x 3.00	mm
Height - Seated (Max)	0.80	mm
Thermal Resistance	15	°C/W
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	—

Substitute Part Grouping Explanation

Substitution eligibility for SPMWHT541MP5WAQNS5 is determined by the following critical parameters:

Primary Compatibility Criteria:

Package format: 4-SMD, Flat Leads in 5630 supplier package
Physical dimensions: 5.00mm L × 3.00mm W, maximum seated height 0.80mm
Color specification: White, Cool
Correlated Color Temperature (CCT): 5700K
Viewing angle: 120°
Mounting type: Surface Mount
Test current: 65mA
Flux output: 36 lumens (35–37 lm range) at 25°C, 65mA

Electrical Compatibility Considerations:

Forward voltage tolerance: Parts with Vf between 2.75V and 2.95V are compatible within typical circuit designs
Maximum current rating: Substitute parts must support minimum 180mA
CRI specification: 80 minimum maintained across substitutes

Compliance Requirements:

RoHS compliance mandatory
MSL rating: 2A (4 Weeks) standard across all candidates

The substitute parts are grouped into two series categories: LM561B Plus (matching the original series) and LM561C (newer generation with improved efficiency). Both series maintain identical mechanical compatibility and optical specifications while offering different electrical characteristics and product status classifications.

Parameter Comparison

Part Number	Series	Status	CCT (K)	Vf (V)	Flux @ 65mA (lm)	lm/W	Max Current (mA)	Thermal Resistance (°C/W)	Packaging	Inventory (Pcs)
SPMWHT541MP5WAQNS5	LM561B Plus	Obsolete	5700	2.95	36	188	180	15	Bulk	910
SPMWHT541ML5XAQ0S5	LM561C	Active	5700	2.75	36	201	200	12	TR	1083
SPMWHT541ML5XAQKS5	LM561C	Active	5700	2.75	36	201	200	12	TR	927
SPMWHT541ML5XAQMS5	LM561C	Active	5700	2.75	36	201	200	12	TR	951
SPMWHT541ML5XAR0S5	LM561C	Active	5000	2.75	36	201	200	12	TR	921
SPMWHT541ML5XARKS5	LM561C	Active	5000	2.75	36	201	200	12	TR	820
SPMWHT541ML5XARMS5	LM561C	Active	5000	2.75	36	201	200	12	TR	972
SPMWHT541MP5WAQ0S5	LM561B Plus	Active	5700	2.95	36	188	180	15	TR	1014
SPMWHT541MP5WAQKS5	LM561B Plus	Active	5700	2.95	36	188	180	15	TR	860
SPMWHT541MP5WAQMS5	LM561B Plus	Active	5700	2.95	36	188	180	15	TR	1012
SPMWHT541MP5WAQSS5	LM561B Plus	Active	5700	2.95	36	188	180	14	TR	638

Engineering Selection Recommendations

Direct Series Match (LM561B Plus):

SPMWHT541MP5WAQ0S5, SPMWHT541MP5WAQKS5, SPMWHT541MP5WAQMS5, and SPMWHT541MP5WAQSS5 are electrically and mechanically identical to the obsolete SPMWHT541MP5WAQNS5. All maintain LM561B Plus series specifications with 2.95V forward voltage, 180mA maximum current, and 15°C/W thermal resistance. These parts are classified as Active and available in Tape & Reel packaging. Selection among these variants depends on packaging format requirements and inventory availability. SPMWHT541MP5WAQMS5 offers highest inventory (1012 pcs) with standard RoHS compliance.

Next-Generation Alternative (LM561C Series):

SPMWHT541ML5XAQ0S5, SPMWHT541ML5XAQKS5, and SPMWHT541ML5XAQMS5 provide 5700K CCT matching with improved electrical performance: 2.75V forward voltage, 200mA maximum current, and 12°C/W thermal resistance. These LM561C parts deliver 201 lm/W efficiency versus 188 lm/W in LM561B Plus, with identical 36-lumen flux output at 65mA test current. Lower forward voltage reduces power dissipation in series-connected applications. All are Active status with robust inventory levels.

CCT Variant Consideration:

SPMWHT541ML5XAR0S5, SPMWHT541ML5XARKS5, and SPMWHT541ML5XARMS5 offer 5000K CCT specification instead of 5700K. These parts maintain all other LM561C electrical and mechanical characteristics. Selection of 5000K variants requires confirmation that application color temperature tolerance permits this shift.

Compliance Status:

All substitute parts maintain RoHS compliance. SPMWHT541ML5XAR0S5 carries ROHS3 designation. SPMWHT541MP5WAQSS5 carries ROHS3 designation with REACH Unaffected status. Moisture sensitivity level remains 2A (4 Weeks) across all candidates.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAQ0S5 directly replace SPMWHT541MP5WAQNS5 without circuit modification?

A: Yes. SPMWHT541MP5WAQ0S5 is electrically and mechanically identical to SPMWHT541MP5WAQNS5. Both are LM561B Plus series with 2.95V Vf, 36 lumens at 65mA, and 120° viewing angle in 5630 package. The only difference is product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. Bulk).

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

A: LM561C represents a newer generation with improved efficiency (201 lm/W vs. 188 lm/W) and lower forward voltage (2.75V vs. 2.95V). Both maintain identical 36-lumen flux output at 65mA test current and 120° viewing angle. LM561C has lower thermal resistance (12°C/W vs. 15°C/W) and higher maximum current rating (200mA vs. 180mA). Mechanical compatibility is identical.

Q: Can I use a 5000K CCT part (SPMWHT541ML5XAR0S5) in place of the 5700K original?

A: Only if application specifications permit 5000K color temperature. The 700K difference represents a warmer light output. Electrical and mechanical parameters are identical to other LM561C variants. Verify color temperature tolerance in system requirements before substitution.

Q: What packaging format difference exists between the original and substitutes?

A: SPMWHT541MP5WAQNS5 is supplied in Bulk packaging. All substitute parts are supplied in Tape & Reel (TR) format. Physical component dimensions and PCB footprint remain identical. Tape & Reel packaging is standard for automated assembly processes.

Q: Why does SPMWHT541MP5WAQSS5 show 14°C/W thermal resistance instead of 15°C/W?

A: SPMWHT541MP5WAQSS5 thermal resistance is specified as 14°C/W, representing a marginal improvement over the standard 15°C/W. This is within normal manufacturing variation for LM561B Plus series. All other electrical and optical parameters remain identical.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts carry RoHS compliance certification. SPMWHT541ML5XAR0S5 and SPMWHT541MP5WAQSS5 carry ROHS3 designation, representing the current RoHS standard. SPMWHT541MP5WAQSS5 additionally carries REACH Unaffected status.

Q: What is the inventory status for immediate availability?

A: SPMWHT541ML5XAQ0S5 offers highest availability with 1083 pcs in stock. SPMWHT541MP5WAQMS5 provides 1012 pcs. SPMWHT541MP5WAQSS5 has lowest availability at 638 pcs. All substitute parts are classified as Active status, ensuring continued supply.

Q: Can forward voltage difference (2.95V vs. 2.75V) affect circuit performance?

A: Forward voltage difference of 0.20V between LM561B Plus (2.95V) and LM561C (2.75V) affects power dissipation in series-connected LED strings. LM561C lower voltage reduces power loss. In parallel or individual drive configurations, this difference is typically managed by current-limiting resistors or drivers. Verify circuit topology compatibility.

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