SPMWHT541ML5XAPGS5 LED LM561C Cool White 6500K 5630 Equivalent & Substitute Parts

Part Overview

The SPMWHT541ML5XAPGS5 is a Samsung Semiconductor LM561C series cool white LED with 6500K color temperature, designed for surface mount applications in 5630 package format. This component delivers 35 lumens at 65mA test current with 196 lm/W efficiency and 80 CRI. The part is classified as "Not For New Designs," indicating end-of-life status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain alternatives, and support ongoing production requirements for existing applications.

Key Parameters

Parameter	Value	Unit
Series	LM561C	—
Color / CCT	White, Cool / 6500K	—
Flux @ 25°C, 65mA	35 (34–36)	lm
Forward Voltage (Typ)	2.75	V
Test Current	65	mA
Maximum Current	200	mA
Lumens/Watt @ 65mA	196	lm/W
CRI	80	—
Viewing Angle	120	°
Package / Case	4-SMD, Flat Leads	—
Supplier Device Package	5630	—
Size	5.00 × 3.00	mm
Height (Max)	0.80	mm
Thermal Resistance	12	°C/W
RoHS Status	RoHS Compliant	—
MSL	2A (4 Weeks)	—

Substitute Part Grouping Explanation

Substitution logic is based on the following critical parameters: color temperature (6500K cool white), color rendering index (80 CRI), package format (5630 4-SMD flat leads), mounting type (surface mount), physical dimensions (5.00 × 3.00 × 0.80 mm), viewing angle (120°), and compliance certifications (RoHS, MSL 2A).

Substitute parts are grouped into two categories:

Category 1: Parametric Equivalents (LM561C Series) Parts SPMWHT541ML5XAP0S5, SPMWHT541ML5XAPKS5, and SPMWHT541ML5XAPMS5 are identical to the main part in all electrical and mechanical parameters. These parts share the same series designation, forward voltage (2.75V), test current (65mA), maximum current (200mA), luminous flux (35 lm), efficiency (196 lm/W), thermal resistance (12°C/W), and physical dimensions. The only difference is product status (Active vs. Not For New Designs) and packaging designation suffix.

Category 2: Functional Equivalents (LM561B Plus Series) Parts SPMWHT541MP5WAPKS4, SPMWHT541MP5WAP0S5, SPMWHT541MP5WAPKS5, and SPMWHT541MP5WAPMS5 represent the LM561B Plus series. These parts maintain identical color temperature (6500K), CRI (80), package format (5630), dimensions, and viewing angle. However, they differ in forward voltage (2.95V vs. 2.75V), maximum current (180mA vs. 200mA), thermal resistance (15°C/W vs. 12°C/W), and efficiency (183 lm/W vs. 196 lm/W). These parts are suitable for applications where the LM561B Plus series performance characteristics are acceptable.

Parameter Comparison

Part Number	Series	Product Status	Vf (Typ) [V]	Flux @ 65mA [lm]	Imax [mA]	Efficiency [lm/W]	Rth [°C/W]	RoHS Status
SPMWHT541ML5XAPGS5	LM561C	Not For New Designs	2.75	35	200	196	12	RoHS Compliant
SPMWHT541ML5XAP0S5	LM561C	Active	2.75	35	200	196	12	RoHS Compliant
SPMWHT541ML5XAPKS5	LM561C	Active	2.75	35	200	196	12	RoHS Compliant
SPMWHT541ML5XAPMS5	LM561C	Active	2.75	35	200	196	12	RoHS Compliant
SPMWHT541MP5WAPKS4	LM561B Plus	Active	2.95	33	180	167	15	ROHS3 Compliant
SPMWHT541MP5WAP0S5	LM561B Plus	Active	2.95	35	180	183	15	RoHS Compliant
SPMWHT541MP5WAPKS5	LM561B Plus	Active	2.95	35	180	183	15	RoHS Compliant
SPMWHT541MP5WAPMS5	LM561B Plus	Active	2.95	35	180	183	15	RoHS Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Performance): Select SPMWHT541ML5XAP0S5, SPMWHT541ML5XAPKS5, or SPMWHT541ML5XAPMS5. These parts are parametric equivalents with Active product status, ensuring long-term supply availability. All three maintain identical electrical characteristics (2.75V forward voltage, 200mA maximum current, 196 lm/W efficiency) and thermal properties (12°C/W). Selection among these three variants depends on packaging designation requirements and inventory availability.

For Functional Substitution (LM561B Plus Series): The LM561B Plus variants (SPMWHT541MP5WAP0S5, SPMWHT541MP5WAPKS5, SPMWHT541MP5WAPMS5) are suitable when circuit design accommodates higher forward voltage (2.95V vs. 2.75V), lower maximum current rating (180mA vs. 200mA), and reduced thermal performance (15°C/W vs. 12°C/W). These parts maintain identical color temperature, CRI, package format, and physical dimensions. SPMWHT541MP5WAPKS4 is not recommended due to lower luminous flux (33 lm vs. 35 lm) and ROHS3 compliance status.

Compliance Considerations: All recommended substitutes maintain RoHS compliance and MSL 2A (4 Weeks) moisture sensitivity rating. The main part and all LM561C equivalents carry RoHS Compliant status. LM561B Plus variants carry either RoHS Compliant or ROHS3 Compliant status, both acceptable for standard applications.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541ML5XAP0S5, SPMWHT541ML5XAPKS5, and SPMWHT541ML5XAPMS5 be used interchangeably with SPMWHT541ML5XAPGS5?

A: Yes. These three parts are parametric equivalents with identical electrical performance (2.75V forward voltage, 35 lm luminous flux, 196 lm/W efficiency, 200mA maximum current) and thermal characteristics (12°C/W). The differences in part number suffixes reflect packaging designation variants. All three are Active status parts, providing superior supply continuity compared to the Not For New Designs status of the main part.

Q: What are the key differences between LM561C and LM561B Plus series?

A: The primary differences are forward voltage (2.75V vs. 2.95V), maximum current rating (200mA vs. 180mA), thermal resistance (12°C/W vs. 15°C/W), and efficiency (196 lm/W vs. 183 lm/W). Both series maintain identical color temperature (6500K), CRI (80), package format (5630), and physical dimensions. LM561B Plus represents an updated series with different electrical characteristics.

Q: Are the physical dimensions identical across all substitute parts?

A: Yes. All substitute parts maintain the same 5630 package format with dimensions of 5.00 mm length × 3.00 mm width × 0.80 mm maximum height. The 4-SMD flat lead configuration and 120° viewing angle are consistent across all parts listed.

Q: What is the impact of forward voltage difference on circuit design?

A: The 0.20V difference between LM561C (2.75V) and LM561B Plus (2.95V) affects power dissipation and current limiting resistor calculations. Circuits designed for 2.75V operation require recalculation of series resistances if substituting with 2.95V parts. Additionally, the lower maximum current rating of LM561B Plus (180mA vs. 200mA) must be verified against circuit current requirements.

Q: Are all parts RoHS compliant?

A: Yes. SPMWHT541ML5XAPGS5 and all LM561C equivalents carry RoHS Compliant status. LM561B Plus variants carry either RoHS Compliant or ROHS3 Compliant status. Both compliance levels are acceptable for standard applications.

Q: What is the moisture sensitivity level for these parts?

A: All parts carry MSL 2A rating with 4-week floor life. This indicates moderate moisture sensitivity requiring standard moisture control during storage and handling. Parts must be stored in dry conditions and used within 4 weeks of package opening under standard humidity conditions.

Q: Which substitute part offers the best supply availability?

A: SPMWHT541ML5XAPKS5 (1064 pcs in stock) and SPMWHT541ML5XAPMS5 (969 pcs in stock) offer the highest inventory levels among LM561C equivalents. For LM561B Plus series, SPMWHT541MP5WAP0S5 (1161 pcs) provides the largest available quantity.

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