SPMWHT541ML5XATGS5 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541ML5XATGS5 is a Samsung Semiconductor LM561C series neutral white LED (4000K) in 5630 surface mount package format. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. The part delivers 35 lumens at 65mA test current with a forward voltage of 2.75V and 196 lm/W efficiency. Due to its discontinued design status, equivalent substitute parts from the LM561C and LM561B Plus series are available to maintain design continuity and ensure supply chain availability.

Key Parameters

Parameter	Value	Unit
Series	LM561C	—
Color / CCT	White, Neutral / 4000K	—
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 (5630)	—
Dimensions	5.00 × 3.00 × 0.80	mm
Thermal Resistance	12	°C/W
Mounting Type	Surface Mount	—
RoHS Status	RoHS Compliant	—
MSL	2A (4 Weeks)	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following electrical and mechanical parameters:

Primary Substitution Criteria:

Color and CCT (4000K neutral white)
Package type (4-SMD, Flat Leads, 5630 form factor)
Physical dimensions (5.00 × 3.00 × 0.80 mm)
Mounting type (Surface Mount)
Viewing angle (120°)
CRI (80)
Test current (65mA)
Moisture sensitivity level (2A, 4 Weeks)

Substitute Categories:

Category 1: Parametric Equivalents (LM561C Series) Parts SPMWHT541ML5XAT0S5, SPMWHT541ML5XATKS5, SPMWHT541ML5XATMS5, and SPMWHT541ML5XATUS5 are direct parametric equivalents. These parts maintain identical electrical performance: 2.75V forward voltage, 35 lm output at 65mA, 196 lm/W efficiency, and 12°C/W thermal resistance. All share the same LM561C series designation and meet identical mechanical specifications. Differences exist only in packaging tape configuration and RoHS certification variants (RoHS vs. ROHS3).

Category 2: Performance Substitutes (LM561B Plus Series) Parts SPMWHT541MP5WATMS4, SPMWHT541MP5WAT0S5, SPMWHT541MP5WATKS5, SPMWHT541MP5WATMS5, SPMWHT541MP5WATNS5, and SPMWHT541MP5WATUS5 represent the LM561B Plus series. These parts share identical package, dimensions, and color specifications but operate at 2.95V forward voltage with 35 lm output at 65mA. Efficiency ranges from 172–183 lm/W, and thermal resistance is 15–16°C/W. Maximum current is 180mA versus 200mA for LM561C variants.

Parameter Comparison

Part Number	Series	Vf (Typ) [V]	Flux @ 65mA [lm]	lm/W @ 65mA	Imax [mA]	Rth [°C/W]	Product Status	RoHS Status
SPMWHT541ML5XATGS5	LM561C	2.75	35	196	200	12	Not For New Designs	RoHS Compliant
SPMWHT541ML5XAT0S5	LM561C	2.75	35	196	200	12	Active	ROHS3 Compliant
SPMWHT541ML5XATKS5	LM561C	2.75	35	196	200	12	Active	RoHS Compliant
SPMWHT541ML5XATMS5	LM561C	2.75	35	196	200	12	Active	ROHS3 Compliant
SPMWHT541ML5XATUS5	LM561C	2.75	35	196	200	12	Active	ROHS3 Compliant
SPMWHT541MP5WATMS4	LM561B Plus	2.95	33	172	180	16	Active	ROHS3 Compliant
SPMWHT541MP5WAT0S5	LM561B Plus	2.95	35	182	180	15	Active	RoHS Compliant
SPMWHT541MP5WATKS5	LM561B Plus	2.95	35	183	180	15	Active	RoHS Compliant
SPMWHT541MP5WATMS5	LM561B Plus	2.95	35	182	180	15	Active	ROHS3 Compliant
SPMWHT541MP5WATNS5	LM561B Plus	2.95	35	182	180	15	Active	RoHS Compliant
SPMWHT541MP5WATUS5	LM561B Plus	2.95	35	182	180	15	Not For New Designs	RoHS Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

Select from the LM561C parametric equivalent group: SPMWHT541ML5XAT0S5, SPMWHT541ML5XATKS5, SPMWHT541ML5XATMS5, or SPMWHT541ML5XATUS5. These parts maintain 2.75V forward voltage, 196 lm/W efficiency, and 12°C/W thermal resistance. All four are in Active product status. SPMWHT541ML5XAT0S5 and SPMWHT541ML5XATMS5 carry ROHS3 certification; SPMWHT541ML5XATKS5 carries RoHS Compliant status. Inventory availability ranges from 680 to 25,846 pieces.

For Performance-Compatible Substitution (LM561B Plus Series):

The LM561B Plus variants (SPMWHT541MP5WAT0S5, SPMWHT541MP5WATKS5, SPMWHT541MP5WATMS5, SPMWHT541MP5WATNS5) are suitable when circuit design accommodates 2.95V forward voltage and 180mA maximum current. These parts deliver 35 lm output with 182–183 lm/W efficiency and 15°C/W thermal resistance. All are in Active status with ROHS3 or RoHS Compliant certifications. Inventory availability ranges from 849 to 5,749 pieces.

Compliance Considerations:

All substitute parts meet RoHS or ROHS3 compliance and carry MSL 2A (4 Weeks) moisture sensitivity rating. ECCN classification is EAR99 for all variants. HTSUS code 8541.41.0000 applies uniformly across the product family.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541ML5XATGS5 be directly replaced with LM561B Plus variants?

A: LM561B Plus parts are electrically compatible but operate at 2.95V forward voltage versus 2.75V for LM561C. Circuit designs must accommodate the higher voltage drop. Thermal resistance increases from 12°C/W to 15–16°C/W, and maximum current decreases from 200mA to 180mA. Luminous output remains at 35 lm at 65mA test current.

Q: What is the difference between RoHS and ROHS3 compliance variants?

A: Both certifications indicate lead-free and hazardous substance compliance. ROHS3 represents the updated directive version. Both are acceptable for new designs; selection depends on customer or regional requirements.

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

A: Yes. All listed substitute parts use the 4-SMD, Flat Leads 5630 package with identical dimensions (5.00 × 3.00 × 0.80 mm) and 120° viewing angle. Surface mount assembly compatibility is maintained across all variants.

Q: What is the impact of thermal resistance differences?

A: LM561C variants (12°C/W) dissipate heat more efficiently than LM561B Plus variants (15–16°C/W). In high-ambient or thermally constrained applications, LM561C parts maintain lower junction temperatures at equivalent drive currents. Thermal design calculations should account for this 3–4°C/W difference.

Q: Can SPMWHT541ML5XATUS5 be used in new designs?

A: SPMWHT541ML5XATUS5 carries "Not For New Designs" status. For new designs, select from Active status parts: SPMWHT541ML5XAT0S5, SPMWHT541ML5XATKS5, SPMWHT541ML5XATMS5 (LM561C series) or SPMWHT541MP5WAT0S5, SPMWHT541MP5WATKS5, SPMWHT541MP5WATMS5, SPMWHT541MP5WATNS5 (LM561B Plus series).

Q: What determines tape configuration differences in part numbers?

A: The suffix characters in part numbers (MS, KS, US, 0S) indicate different tape reel configurations for automated assembly. Electrical and mechanical specifications remain identical. Selection depends on assembly equipment compatibility and supplier availability.

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