SPMWHT541MP5WATRS5 Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WATRS5 is a Samsung Semiconductor LED lighting component from the LM561B Plus series. This surface-mount LED operates at neutral white 4000K color temperature with a forward voltage of 2.95V and test current of 65mA. The component features a 5630 package format with 4-SMD flat leads and 120° viewing angle.

The SPMWHT541MP5WATRS5 carries a "Not For New Designs" product status. This designation indicates the part is in mature production phase with limited future support. Engineers requiring this component for new applications should evaluate active substitute parts to ensure long-term design viability and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Series	LM561B Plus	—
Color	White, Neutral	—
CCT (Correlated Color Temperature)	4000K	K
Flux @ 25°C, 65mA Test Current	35lm (34lm ~ 36lm)	lm
Forward Voltage (Vf) Typical	2.95V	V
Test Current	65mA	mA
Maximum Current	180mA	mA
Lumens/Watt @ Test Current	182 lm/W	lm/W
CRI (Color Rendering Index)	80	—
Viewing Angle	120°	°
Package / Case	4-SMD, Flat Leads	—
Supplier Device Package	5630	—
Size / Dimension	5.00mm x 3.00mm	mm
Height - Seated (Max)	0.80mm	mm
Thermal Resistance of Package	15°C/W	°C/W
Mounting Type	Surface Mount	—
Packaging	Tape & Reel (TR)	—
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	—

Substitute Part Grouping Explanation

Substitute parts for the SPMWHT541MP5WATRS5 are grouped into two distinct categories based on LED series and electrical characteristics:

Category 1: LM561B Plus Series (Direct Series Match) Parts SPMWHT541MP5WAT0S5, SPMWHT541MP5WATKS5, SPMWHT541MP5WATMS5, SPMWHT541MP5WATNS5, and SPMWHT541MP5WATSS5 maintain identical electrical specifications to the main part: 2.95V forward voltage, 180mA maximum current, 182-183 lm/W efficiency, and 15°C/W thermal resistance. These parts differ only in packaging tape reel designations (0, K, M, N, S suffixes) and product status. Several variants are Active status, providing improved supply continuity.

Category 2: LM561C Series (Parametric Equivalent) Parts SPMWHT541ML5XAT0S5, SPMWHT541ML5XATKS5, and SPMWHT541ML5XATMS5 represent the newer LM561C series. These parts share identical optical output (35lm at 65mA), color temperature (4000K), CRI (80), viewing angle (120°), and package dimensions (5630, 5.00mm x 3.00mm). The LM561C series differs in forward voltage (2.75V vs. 2.95V), maximum current (200mA vs. 180mA), thermal resistance (12°C/W vs. 15°C/W), and efficiency (196 lm/W vs. 182 lm/W). All LM561C variants carry Active product status.

Substitution Criteria:

Color: White, Neutral 4000K (all parts)
Flux output: 35lm at 65mA test current (all parts)
CRI: 80 (all parts)
Viewing angle: 120° (all parts)
Package: 4-SMD, Flat Leads, 5630 format (all parts)
Mounting: Surface Mount (all parts)
Dimensions: 5.00mm x 3.00mm, 0.80mm height (all parts)

Parameter Comparison

Part Number	Series	Vf (Typ)	I-Max	Flux @ 65mA	lm/W	Thermal Resistance	Product Status	RoHS Status	Inventory
SPMWHT541MP5WATRS5	LM561B Plus	2.95V	180mA	35lm	182	15°C/W	Not For New Designs	RoHS Compliant	861 Pcs
SPMWHT541MP5WAT0S5	LM561B Plus	2.95V	180mA	35lm	182	15°C/W	Active	RoHS Compliant	5749 Pcs
SPMWHT541MP5WATKS5	LM561B Plus	2.95V	180mA	35lm	183	15°C/W	Active	RoHS Compliant	849 Pcs
SPMWHT541MP5WATMS5	LM561B Plus	2.95V	180mA	35lm	182	15°C/W	Active	ROHS3 Compliant	2088 Pcs
SPMWHT541MP5WATNS5	LM561B Plus	2.95V	180mA	35lm	182	15°C/W	Active	RoHS Compliant	798 Pcs
SPMWHT541MP5WATSS5	LM561B Plus	2.95V	180mA	35lm	183	15°C/W	Active	ROHS3 Compliant	1157 Pcs
SPMWHT541MP5WATUS5	LM561B Plus	2.95V	180mA	35lm	182	15°C/W	Not For New Designs	RoHS Compliant	25490 Pcs
SPMWHT541ML5XAT0S5	LM561C	2.75V	200mA	35lm	196	12°C/W	Active	ROHS3 Compliant	14120 Pcs
SPMWHT541ML5XATKS5	LM561C	2.75V	200mA	35lm	196	12°C/W	Active	RoHS Compliant	680 Pcs
SPMWHT541ML5XATMS5	LM561C	2.75V	200mA	35lm	196	12°C/W	Active	ROHS3 Compliant	25846 Pcs

Engineering Selection Recommendations

For Direct Replacement (Same Series, Same Electrical Characteristics):

Select from LM561B Plus Active variants when maintaining identical electrical performance is required. SPMWHT541MP5WAT0S5, SPMWHT541MP5WATKS5, SPMWHT541MP5WATMS5, SPMWHT541MP5WATNS5, and SPMWHT541MP5WATSS5 all provide 2.95V forward voltage and 180mA maximum current specifications identical to SPMWHT541MP5WATRS5. These parts carry Active product status, ensuring continued manufacturing support and supply availability. SPMWHT541MP5WATMS5 and SPMWHT541MP5WATSS5 offer ROHS3 compliance for enhanced regulatory alignment.

For Performance Optimization (LM561C Series):

The LM561C series (SPMWHT541ML5XAT0S5, SPMWHT541ML5XATKS5, SPMWHT541ML5XATMS5) provides improved efficiency at 196 lm/W versus 182 lm/W, reduced thermal resistance at 12°C/W versus 15°C/W, and higher maximum current rating at 200mA versus 180mA. These parts maintain identical optical output (35lm), color temperature (4000K), CRI (80), and package dimensions. All LM561C variants carry Active product status. SPMWHT541ML5XAT0S5 and SPMWHT541ML5XATMS5 provide highest inventory availability (14120 and 25846 units respectively).

Compliance Considerations:

All substitute parts maintain RoHS compliance. SPMWHT541MP5WATMS5, SPMWHT541MP5WATSS5, SPMWHT541ML5XAT0S5, and SPMWHT541ML5XATMS5 carry ROHS3 certification. All parts maintain 2A MSL (4 Weeks) moisture sensitivity level and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WATRS5 be replaced with LM561C series parts?

A: Yes. LM561C parts (SPMWHT541ML5XAT0S5, SPMWHT541ML5XATKS5, SPMWHT541ML5XATMS5) are parametric equivalents. They deliver identical 35lm optical output at 65mA test current, maintain 4000K color temperature, 80 CRI, 120° viewing angle, and 5630 package format. Forward voltage differs (2.75V vs. 2.95V), maximum current is higher (200mA vs. 180mA), and thermal resistance is lower (12°C/W vs. 15°C/W). Circuit design must accommodate the 0.20V voltage difference.

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

A: LM561B Plus operates at 2.95V with 182 lm/W efficiency and 15°C/W thermal resistance. LM561C operates at 2.75V with 196 lm/W efficiency and 12°C/W thermal resistance. Both deliver 35lm at 65mA test current. LM561C provides superior thermal performance and efficiency. LM561B Plus maintains higher forward voltage specification.

Q: Why is SPMWHT541MP5WATRS5 marked "Not For New Designs"?

A: This designation indicates the part is in mature production phase with limited future support commitment. New designs should select from Active status parts: LM561B Plus variants (SPMWHT541MP5WAT0S5, SPMWHT541MP5WATKS5, SPMWHT541MP5WATMS5, SPMWHT541MP5WATNS5, SPMWHT541MP5WATSS5) or LM561C series (SPMWHT541ML5XAT0S5, SPMWHT541ML5XATKS5, SPMWHT541ML5XATMS5).

Q: Are all substitute parts identical in package dimensions?

A: Yes. All substitute parts use 5630 package format with 5.00mm x 3.00mm dimensions and 0.80mm maximum seated height. All feature 4-SMD flat leads configuration. All are surface-mount components with identical mechanical compatibility.

Q: Which substitute part offers best inventory availability?

A: SPMWHT541ML5XATMS5 (LM561C series) provides highest inventory at 25846 units. SPMWHT541MP5WATUS5 (LM561B Plus) provides 25490 units. Both ensure immediate supply availability.

Q: Do all parts maintain the same color temperature and CRI?

A: Yes. All substitute parts maintain 4000K neutral white color temperature and 80 CRI (Color Rendering Index). Color rendering characteristics are identical across all variants.

Q: What is the significance of the suffix letters (0, K, M, N, S) in part numbers?

A: Suffix letters indicate packaging tape reel designations and manufacturing date codes. They do not affect electrical or optical specifications. Parts with different suffixes are functionally equivalent and interchangeable from an engineering perspective.

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