SPMWHT541MP5WAUUS4 LED LM561B Plus White 3500K Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAUUS4 is a Samsung Semiconductor LM561B Plus series white LED with warm color temperature of 3500K, designed for surface mount applications in 5630 package format. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. The identification of equivalent and substitute parts is necessary to support existing designs, facilitate production continuity, and enable component sourcing from available inventory across Samsung's LM561B Plus product line.

Key Parameters

Parameter	Value
Manufacturer Part Number	SPMWHT541MP5WAUUS4
Manufacturer	Samsung Semiconductor, Inc.
Series	LM561B Plus
Color	White, Warm
CCT (K)	3500K
Flux @ 25°C, Current - Test	32lm (31lm ~ 33lm)
Current - Test	65mA
Voltage - Forward (Vf) (Typ)	2.95V
Lumens/Watt @ Current - Test	167 lm/W
CRI (Color Rendering Index)	80
Current - Max	180mA
Viewing Angle	120°
Mounting Type	Surface Mount
Package / Case	4-SMD, Flat Leads
Supplier Device Package	5630
Size / Dimension	0.197" L x 0.118" W (5.00mm x 3.00mm)
Height - Seated (Max)	0.031" (0.80mm)
Thermal Resistance of Package	15°C/W
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	2A (4 Weeks)
Packaging	Tape & Reel (TR)
Product Status	Not For New Designs

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MP5WAUUS4 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria (Identical Parameters):

Series: LM561B Plus
Color: White, Warm
CCT (K): 3500K
Flux @ 25°C, Current - Test: 32lm (31lm ~ 33lm)
Current - Test: 65mA
Voltage - Forward (Vf) (Typ): 2.95V
Lumens/Watt @ Current - Test: 167 lm/W
CRI (Color Rendering Index): 80
Current - Max: 180mA
Viewing Angle: 120°
Mounting Type: Surface Mount
Package / Case: 4-SMD, Flat Leads
Supplier Device Package: 5630
Size / Dimension: 0.197" L x 0.118" W (5.00mm x 3.00mm)
Height - Seated (Max): 0.031" (0.80mm)
Moisture Sensitivity Level (MSL): 2A (4 Weeks)

Secondary Substitution Criteria (Allowable Variations):

Thermal Resistance of Package: 14°C/W to 16°C/W
RoHS Status: RoHS Compliant or ROHS3 Compliant
Product Status: Active (preferred for new sourcing)

Parts meeting all primary criteria and falling within secondary tolerance ranges are classified as direct parametric equivalents. Parts with different CCT values (3000K instead of 3500K) are identified separately as non-equivalent alternatives.

Parameter Comparison

Part Number	CCT (K)	Flux @ 25°C (lm)	Vf (Typ)	Current - Test (mA)	Thermal Resistance (°C/W)	Product Status	RoHS Status	Inventory (Pcs)
SPMWHT541MP5WAUUS4	3500K	32	2.95V	65	15	Not For New Designs	RoHS Compliant	1050
SPMWHT541MP5WAU0S4	3500K	32	2.95V	65	15	Active	RoHS Compliant	968
SPMWHT541MP5WAUKS4	3500K	32	2.95V	65	15	Active	RoHS Compliant	805
SPMWHT541MP5WAUMS4	3500K	32	2.95V	65	16	Active	ROHS3 Compliant	200400
SPMWHT541MP5WAUNS4	3500K	32	2.95V	65	15	Active	RoHS Compliant	973
SPMWHT541MP5WAUSS4	3500K	32	2.95V	65	14	Active	ROHS3 Compliant	769
SPMWHT541MP5WAV0S4	3000K	32	2.95V	65	16	Active	RoHS Compliant	85670
SPMWHT541MP5WAVKS4	3000K	32	2.95V	65	15	Active	RoHS Compliant	795
SPMWHT541MP5WAVMS4	3000K	32	2.95V	65	16	Active	ROHS3 Compliant	50200
SPMWHT541MP5WAVNS4	3000K	32	2.95V	65	15	Active	RoHS Compliant	1011

Engineering Selection Recommendations

Direct Parametric Equivalents (3500K CCT):

The following parts are direct parametric equivalents to SPMWHT541MP5WAUUS4 and are suitable for substitution in applications requiring 3500K warm white color temperature:

SPMWHT541MP5WAU0S4: Active product status with identical electrical and thermal characteristics. Recommended for new sourcing.
SPMWHT541MP5WAUKS4: Active product status with identical electrical and thermal characteristics. Recommended for new sourcing.
SPMWHT541MP5WAUMS4: Active product status with ROHS3 compliance. Thermal resistance of 16°C/W (within allowable range). Highest inventory availability (200,400 pcs). Suitable for applications with thermal margin.
SPMWHT541MP5WAUNS4: Active product status with identical electrical and thermal characteristics. Recommended for new sourcing.
SPMWHT541MP5WAUSS4: Active product status with ROHS3 compliance. Thermal resistance of 14°C/W (superior thermal performance). Suitable for thermally constrained applications.

Alternative Color Temperature Options (3000K CCT):

The following parts share identical electrical characteristics but operate at 3000K color temperature instead of 3500K. These are suitable only for applications where 3000K warm white is acceptable:

SPMWHT541MP5WAV0S4: Active product status. Highest inventory availability among 3000K variants (85,670 pcs).
SPMWHT541MP5WAVKS4: Active product status with identical thermal characteristics to main part.
SPMWHT541MP5WAVMS4: Active product status with ROHS3 compliance. High inventory availability (50,200 pcs).
SPMWHT541MP5WAVNS4: Active product status with identical thermal characteristics to main part.

Compliance Considerations:

All substitute parts maintain RoHS compliance. Parts designated ROHS3 Compliant (SPMWHT541MP5WAUMS4, SPMWHT541MP5WAUSS4, SPMWHT541MP5WAVMS4) meet enhanced environmental standards. Selection between RoHS Compliant and ROHS3 Compliant variants depends on end-application regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAUMS4 be used as a direct replacement for SPMWHT541MP5WAUUS4?

A: Yes. SPMWHT541MP5WAUMS4 is a direct parametric equivalent with identical electrical performance (3500K, 32lm, 65mA, 2.95V). The thermal resistance differs by 1°C/W (16°C/W vs. 15°C/W), which falls within allowable variation for this product category. ROHS3 compliance provides enhanced environmental certification.

Q: What is the difference between 3500K and 3000K variants?

A: The primary difference is correlated color temperature (CCT). The main part SPMWHT541MP5WAUUS4 operates at 3500K (neutral warm white), while 3000K variants (SPMWHT541MP5WAV0S4, SPMWHT541MP5WAVKS4, SPMWHT541MP5WAVMS4, SPMWHT541MP5WAVNS4) produce warmer light output. All other electrical parameters remain identical. Selection depends on application color temperature requirements.

Q: Are all substitute parts in the same 5630 package?

A: Yes. All listed substitute parts use the 4-SMD, Flat Leads package in 5630 supplier device package format with identical dimensions (0.197" L x 0.118" W, 5.00mm x 3.00mm) and maximum seated height (0.031", 0.80mm). Direct mechanical interchangeability is confirmed.

Q: Why is SPMWHT541MP5WAUUS4 marked "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status. For new product designs, selection from Active status alternatives (SPMWHT541MP5WAU0S4, SPMWHT541MP5WAUKS4, SPMWHT541MP5WAUMS4, SPMWHT541MP5WAUNS4, SPMWHT541MP5WAUSS4) is recommended to ensure long-term supply availability and design longevity.

Q: What is the significance of thermal resistance variation (14°C/W to 16°C/W)?

A: Thermal resistance indicates heat dissipation capability. Lower values (14°C/W in SPMWHT541MP5WAUSS4) provide superior thermal performance, beneficial for high-power or thermally constrained applications. Higher values (16°C/W in SPMWHT541MP5WAUMS4 and SPMWHT541MP5WAV0S4) remain within acceptable operating parameters for standard applications. Selection depends on thermal design requirements.

Q: Can SPMWHT541MP5WAUMS4 be used in applications requiring RoHS Compliant (non-ROHS3) certification?

A: ROHS3 Compliant parts exceed RoHS Compliant requirements and are backward compatible. SPMWHT541MP5WAUMS4 can be used in applications requiring RoHS Compliant certification. However, if ROHS3 certification is specifically required, SPMWHT541MP5WAUMS4 is the appropriate selection.

Q: What is the Moisture Sensitivity Level (MSL) 2A specification?

A: MSL 2A indicates the component can be stored in dry conditions for up to 4 weeks before soldering. This standard moisture sensitivity level applies to all listed parts and requires standard handling procedures during assembly and storage.

Q: Are there any electrical performance differences between substitute parts with identical CCT?

A: No. All 3500K variants (SPMWHT541MP5WAUUS4, SPMWHT541MP5WAU0S4, SPMWHT541MP5WAUKS4, SPMWHT541MP5WAUMS4, SPMWHT541MP5WAUNS4, SPMWHT541MP5WAUSS4) maintain identical electrical specifications: 32lm flux, 65mA test current, 2.95V forward voltage, 167 lm/W efficiency, 80 CRI, 180mA maximum current, and 120° viewing angle. Differences are limited to thermal resistance and compliance certifications.

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