SPMWHT541MP5WAQNS4 LED LM561B Plus White 5700K Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAQNS4 is a Samsung Semiconductor LED lighting component featuring the LM561B Plus series with cool white 5700K color temperature. This surface-mount LED operates at 2.95V forward voltage with 65mA test current, delivering 34 lumens at 177 lm/W efficiency. The component is housed in a 4-SMD flat-lead package (5630 form factor) with 120° viewing angle and 80 CRI (Color Rendering Index).

The main part number SPMWHT541MP5WAQNS4 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements. Alternative part numbers within the LM561B Plus series and related LM561C series provide functional equivalence with varying packaging and compliance certifications.

Key Parameters

Parameter	Value	Unit
Series	LM561B Plus	—
Color	White, Cool	—
CCT (Correlated Color Temperature)	5700K	K
Flux @ 25°C, 65mA Test Current	34 lm (33–35 lm range)	lm
Forward Voltage (Vf) Typical	2.95V	V
Test Current	65mA	mA
Maximum Current	180mA	mA
Lumens per Watt @ Test Current	177 lm/W	lm/W
Color Rendering Index (CRI)	80	—
Viewing Angle	120°	—
Mounting Type	Surface Mount	—
Package / Case	4-SMD, Flat Leads	—
Supplier Device Package	5630	—
Size / Dimension	5.00mm L × 3.00mm W	mm
Height – Seated (Max)	0.80mm	mm
Thermal Resistance of Package	15°C/W	°C/W
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	—

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MP5WAQNS4 is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

Series designation (LM561B Plus or LM561C)
Color temperature (5700K or 5000K)
Forward voltage (Vf) within acceptable tolerance
Luminous flux output at test current (33–37 lm range)
Test current rating (65mA)
Maximum current rating (180mA)
Viewing angle (120°)
Package type (4-SMD, Flat Leads, 5630 form factor)
Physical dimensions (5.00mm × 3.00mm, 0.80mm height)
Thermal resistance (12–15°C/W)
Moisture sensitivity level (2A)

Substitution Groups:

Group 1: LM561B Plus 5700K Direct Equivalents These parts maintain identical electrical and optical specifications with differences only in packaging format and compliance certifications:

SPMWHT541MP5WAQSS4 (Tape & Reel, ROHS3 Compliant)
SPMWHT541MP5WAQKS4 (Tape & Reel, ROHS3 Compliant)
SPMWHT541MP5WAQ0S4 (Tape & Reel, RoHS Compliant)
SPMWHT541MP5WAQMS4 (Tape & Reel, RoHS Compliant)

Group 2: LM561B Plus 5000K Parametric Equivalents These parts share identical electrical characteristics and physical dimensions but differ in color temperature specification:

SPMWHT541MP5WARKS4 (Cut Tape, ROHS3 Compliant)
SPMWHT541MP5WAR0S4 (Cut Tape & Digi-Reel®, ROHS3 Compliant)
SPMWHT541MP5WARMS4 (Tape & Reel, ROHS3 Compliant)
SPMWHT541MP5WARNS4 (Tape & Reel, RoHS Compliant)

Group 3: LM561C Series Alternative This part represents a different LED generation with modified electrical characteristics:

SPMWHT541ML5XAQKS0 (Cut Tape, Active Status, LM561C series)

Parameter Comparison

Part Number	Series	CCT (K)	Vf (V)	Flux @ 25°C (lm)	lm/W	Thermal Resistance (°C/W)	Packaging	Product Status	RoHS Status
SPMWHT541MP5WAQNS4	LM561B Plus	5700	2.95	34	177	15	—	Obsolete	RoHS Compliant
SPMWHT541MP5WAQSS4	LM561B Plus	5700	2.95	34	177	14	Tape & Reel	Active	ROHS3 Compliant
SPMWHT541MP5WAQKS4	LM561B Plus	5700	2.95	34	177	15	Tape & Reel	Active	ROHS3 Compliant
SPMWHT541MP5WAQ0S4	LM561B Plus	5700	2.95	34	177	15	Tape & Reel	Active	RoHS Compliant
SPMWHT541MP5WAQMS4	LM561B Plus	5700	2.95	34	177	15	Tape & Reel	Active	RoHS Compliant
SPMWHT541MP5WARKS4	LM561B Plus	5000	2.95	34	177	15	Cut Tape	Active	ROHS3 Compliant
SPMWHT541MP5WAR0S4	LM561B Plus	5000	2.95	34	177	15	Cut Tape & Digi-Reel®	Active	ROHS3 Compliant
SPMWHT541MP5WARMS4	LM561B Plus	5000	2.95	34	177	15	Tape & Reel	Active	ROHS3 Compliant
SPMWHT541MP5WARNS4	LM561B Plus	5000	2.95	34	177	15	Tape & Reel	Active	RoHS Compliant
SPMWHT541ML5XAQKS0	LM561C	5700	2.80	35	192	12	Cut Tape	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

Select from Group 1 (LM561B Plus 5700K) when the original 5700K color temperature specification must be maintained. All Group 1 parts deliver identical optical and electrical performance. Choose based on packaging requirements and compliance certification:

SPMWHT541MP5WAQKS4 offers the highest inventory availability (16,110 pcs) with ROHS3 compliance and Tape & Reel packaging, suitable for automated assembly processes.
SPMWHT541MP5WAQSS4 provides ROHS3 compliance with slightly improved thermal resistance (14°C/W) in Tape & Reel format.
SPMWHT541MP5WAQ0S4 and SPMWHT541MP5WAQMS4 maintain RoHS compliance with standard thermal resistance in Tape & Reel packaging.

For Color Temperature Flexibility (5000K Alternative):

Group 2 parts (LM561B Plus 5000K) maintain all electrical specifications while shifting color temperature from 5700K to 5000K. These are suitable when application requirements permit warmer color temperature operation:

SPMWHT541MP5WAR0S4 offers maximum inventory (500,300 pcs) with ROHS3 compliance and flexible packaging (Cut Tape & Digi-Reel®).
SPMWHT541MP5WARKS4 provides 73,313 pcs inventory in Cut Tape format with ROHS3 compliance.
SPMWHT541MP5WARMS4 and SPMWHT541MP5WARNS4 deliver Tape & Reel packaging with 19,382 and 793 pcs inventory respectively.

For Next-Generation Alternative (LM561C Series):

SPMWHT541ML5XAQKS0 represents the LM561C generation with improved efficiency (192 lm/W vs. 177 lm/W), lower forward voltage (2.80V vs. 2.95V), and superior thermal resistance (12°C/W vs. 15°C/W). This part is suitable when design optimization for power efficiency and thermal performance is prioritized. ROHS3 compliance and 155,477 pcs inventory support production continuity. Note: Forward voltage difference of 0.15V requires circuit verification for constant-current driver compatibility.

Compliance Considerations:

All substitute parts maintain RoHS or ROHS3 compliance. ROHS3-compliant parts (SPMWHT541MP5WAQSS4, SPMWHT541MP5WAQKS4, SPMWHT541MP5WARKS4, SPMWHT541MP5WAR0S4, SPMWHT541MP5WARMS4, SPMWHT541ML5XAQKS0) represent current manufacturing standards. All parts maintain 2A MSL (4 Weeks) moisture sensitivity level and identical ECCN/HTSUS classifications.

Frequently Asked Questions (FAQ)

Q1: Can SPMWHT541MP5WAQNS4 be directly replaced with any Group 1 substitute?

A: Yes. All Group 1 parts (SPMWHT541MP5WAQSS4, SPMWHT541MP5WAQKS4, SPMWHT541MP5WAQ0S4, SPMWHT541MP5WAQMS4) maintain identical electrical specifications, optical output, and physical dimensions. Differences exist only in packaging format (all Tape & Reel) and compliance certifications. No circuit modifications are required.

Q2: What is the difference between Group 1 (5700K) and Group 2 (5000K) parts?

A: Group 1 and Group 2 parts share identical electrical characteristics (2.95V Vf, 65mA test current, 177 lm/W efficiency) and physical dimensions. The sole difference is color temperature: Group 1 operates at 5700K (cool white), while Group 2 operates at 5000K (slightly warmer white). Selection depends on application color temperature requirements.

Q3: Why does SPMWHT541ML5XAQKS0 (LM561C) show different electrical parameters?

A: SPMWHT541ML5XAQKS0 represents a different LED generation (LM561C vs. LM561B Plus). It features lower forward voltage (2.80V vs. 2.95V), higher luminous efficiency (192 lm/W vs. 177 lm/W), and improved thermal resistance (12°C/W vs. 15°C/W). These differences require verification of constant-current driver compatibility before substitution.

Q4: What packaging formats are available for substitutes?

A: Substitute parts are available in three packaging formats: Tape & Reel (TR), Cut Tape (CT), and Cut Tape & Digi-Reel® (CT & Digi-Reel®). Tape & Reel format is standard for automated assembly. Cut Tape format suits lower-volume or manual assembly processes. Selection depends on production equipment and volume requirements.

Q5: Are all substitute parts currently in active production status?

A: The original part SPMWHT541MP5WAQNS4 is obsolete. All recommended substitutes carry active product status, ensuring ongoing availability and manufacturing support. ROHS3-compliant variants represent current manufacturing standards.

Q6: What is the inventory status of substitute parts?

A: Inventory varies significantly. SPMWHT541MP5WAR0S4 (5000K variant) offers the highest availability at 500,300 pcs. SPMWHT541MP5WAQKS4 (5700K, Group 1) provides 16,110 pcs. SPMWHT541ML5XAQKS0 (LM561C alternative) maintains 155,477 pcs. Verify current inventory with supplier before design finalization.

Q7: Can SPMWHT541MP5WAQNS4 be used interchangeably with SPMWHT541ML5XAQKS0 in existing designs?

A: Physical dimensions and package type are identical, enabling mechanical interchangeability. However, the 0.15V forward voltage difference (2.95V vs. 2.80V) requires verification of constant-current driver circuit compatibility. Designs using voltage-regulated supplies may require adjustment. Thermal performance improvement (12°C/W vs. 15°C/W) is beneficial but does not mandate circuit changes.

Q8: What compliance certifications apply to all substitute parts?

A: All parts maintain RoHS or ROHS3 compliance, 2A MSL (4 Weeks) moisture sensitivity level, EAR99 ECCN classification, and 8541.41.0000 HTSUS code. ROHS3-compliant variants represent current regulatory standards.

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