SPMWHT541ML5XAPNS5 LED LM561C Cool White 6500K 5630 Equivalent & Substitute Parts

Part Overview

The SPMWHT541ML5XAPNS5 is a Samsung Semiconductor LED lighting component featuring the LM561C series with cool white 6500K color temperature. This surface mount device delivers 35 lumens at 65mA test current with a forward voltage of 2.75V and 196 lm/W efficiency. The component is housed in a 4-SMD flat lead package (5630 form factor) with 120° viewing angle and CRI 80 color rendering.

The SPMWHT541ML5XAPNS5 carries a "Not For New Designs" product status. Identifying equivalent and substitute parts is necessary for design continuity, inventory management, and sourcing flexibility when the primary part becomes unavailable or when active alternatives offer improved availability or updated specifications.

Key Parameters

Parameter	Value
Series	LM561C
Color / CCT	White, Cool / 6500K
Flux @ 25°C, 65mA	35 lm (34–36 lm range)
Forward Voltage (Vf) Typical	2.75V
Test Current	65mA
Maximum Current	200mA
Lumens/Watt @ Test Current	196 lm/W
CRI (Color Rendering Index)	80
Viewing Angle	120°
Package / Case	4-SMD, Flat Leads (5630)
Size / Dimension	5.00mm L × 3.00mm W
Height - Seated (Max)	0.80mm
Thermal Resistance	12°C/W
Mounting Type	Surface Mount
RoHS Status	RoHS Compliant
MSL (Moisture Sensitivity)	2A (4 Weeks)

Substitute Part Grouping Explanation

Substitute parts for the SPMWHT541ML5XAPNS5 are classified into two categories based on strict parametric alignment:

Category 1: Parametric Equivalents (LM561C Series)

Parts SPMWHT541ML5XAP0S5, SPMWHT541ML5XAPKS5, and SPMWHT541ML5XAPMS5 are parametric equivalents. These parts maintain identical electrical and optical specifications: 6500K color temperature, 35 lm flux output at 65mA, 2.75V forward voltage, 196 lm/W efficiency, 200mA maximum current, and 12°C/W thermal resistance. All three are housed in the same 5630 4-SMD flat lead package with 120° viewing angle and CRI 80. The primary difference is product status: these three parts are Active, whereas the main part is Not For New Designs. Packaging designations (0S5, KS5, MS5) indicate different tape and reel configurations or supplier variants but do not affect electrical or mechanical compatibility.

Category 2: Similar Substitute (LM561B Plus Series)

Parts SPMWHT541MP5WAPKS4, SPMWHT541MP5WAP0S5, SPMWHT541MP5WAPKS5, and SPMWHT541MP5WAPMS5 belong to the LM561B Plus series. These parts share the same 6500K color temperature, 120° viewing angle, CRI 80, and identical mechanical package (5630 4-SMD flat leads). However, they differ in electrical performance: forward voltage is 2.95V (versus 2.75V), flux output is 33 lm at 65mA test current (versus 35 lm), lumens/watt efficiency is 167 lm/W (versus 196 lm/W), maximum current is 180mA (versus 200mA), and thermal resistance is 15°C/W (versus 12°C/W). These parts are suitable substitutes when the application can tolerate the specified electrical and thermal differences.

Parameter Comparison

Part Number	Series	Product Status	Vf (Typ)	Flux @ 65mA	lm/W	I-Max	Thermal R	RoHS Status
SPMWHT541ML5XAPNS5	LM561C	Not For New Designs	2.75V	35 lm	196	200mA	12°C/W	RoHS Compliant
SPMWHT541ML5XAP0S5	LM561C	Active	2.75V	35 lm	196	200mA	12°C/W	RoHS Compliant
SPMWHT541ML5XAPKS5	LM561C	Active	2.75V	35 lm	196	200mA	12°C/W	RoHS Compliant
SPMWHT541ML5XAPMS5	LM561C	Active	2.75V	35 lm	196	200mA	12°C/W	RoHS Compliant
SPMWHT541MP5WAPKS4	LM561B Plus	Active	2.95V	33 lm	167	180mA	15°C/W	ROHS3 Compliant
SPMWHT541MP5WAP0S5	LM561B Plus	Active	2.95V	35 lm	183	180mA	15°C/W	RoHS Compliant
SPMWHT541MP5WAPKS5	LM561B Plus	Active	2.95V	35 lm	183	180mA	15°C/W	RoHS Compliant
SPMWHT541MP5WAPMS5	LM561B Plus	Active	2.95V	35 lm	183	180mA	15°C/W	RoHS Compliant

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents):

SPMWHT541ML5XAP0S5, SPMWHT541ML5XAPKS5, and SPMWHT541ML5XAPMS5 are recommended as direct replacements. These parts maintain 100% electrical and optical compatibility with the SPMWHT541ML5XAPNS5. All three are Active products with RoHS Compliance certification, providing improved long-term availability compared to the "Not For New Designs" status of the original part. Selection among these three equivalents should be based on tape and reel packaging availability and supplier logistics.

For Functional Substitution (LM561B Plus Series):

SPMWHT541MP5WAP0S5, SPMWHT541MP5WAPKS5, and SPMWHT541MP5WAPMS5 are suitable functional substitutes when design specifications permit tolerance of the following differences: forward voltage increase from 2.75V to 2.95V, flux reduction from 35 lm to 33 lm (or maintained at 35 lm depending on part variant), efficiency reduction from 196 lm/W to 167–183 lm/W, maximum current reduction from 200mA to 180mA, and thermal resistance increase from 12°C/W to 15°C/W. These parts are Active with RoHS Compliance and offer superior availability. SPMWHT541MP5WAPKS4 is not recommended due to lower flux output (33 lm) and ROHS3 compliance status.

All substitute parts maintain identical mechanical package dimensions (5630 4-SMD flat leads, 5.00mm × 3.00mm, 0.80mm height), 120° viewing angle, CRI 80, and MSL 2A moisture sensitivity rating, ensuring PCB layout and assembly process compatibility.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541ML5XAP0S5, SPMWHT541ML5XAPKS5, and SPMWHT541ML5XAPMS5 be used interchangeably with SPMWHT541ML5XAPNS5?

A: Yes. These three parts are parametric equivalents with identical electrical specifications (2.75V Vf, 35 lm flux, 196 lm/W efficiency, 200mA maximum current) and mechanical package (5630 4-SMD flat leads). The only difference is product status (Active versus Not For New Designs) and tape/reel packaging designation. They are direct substitutes.

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

A: The LM561B Plus series operates at higher forward voltage (2.95V versus 2.75V), produces lower flux output (33–35 lm versus 35 lm), delivers lower efficiency (167–183 lm/W versus 196 lm/W), supports lower maximum current (180mA versus 200mA), and exhibits higher thermal resistance (15°C/W versus 12°C/W). Both series share identical color temperature (6500K), viewing angle (120°), CRI (80), and mechanical package (5630 4-SMD flat leads).

Q: Are the packaging designations (0S5, KS5, MS5) electrically significant?

A: No. These designations indicate tape and reel configuration or supplier variants but do not affect electrical or optical performance. Selection should be based on supply chain availability and assembly equipment compatibility.

Q: Can LM561B Plus parts be used in applications designed for LM561C?

A: LM561B Plus parts are functional substitutes only when the application design can accommodate the specified electrical and thermal differences. Circuit designs must account for the 0.20V higher forward voltage, reduced maximum current rating (180mA), and increased thermal resistance (15°C/W). Thermal management and power supply design may require adjustment.

Q: What is the significance of "Not For New Designs" status?

A: This status indicates the SPMWHT541ML5XAPNS5 is in mature or end-of-life phase and is not recommended for new product development. Active equivalent parts (LM561C series) or functional substitutes (LM561B Plus series) should be selected for new designs to ensure long-term supply continuity and support.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed carry either RoHS Compliant or ROHS3 Compliant certification, meeting environmental and hazardous substance restrictions. SPMWHT541MP5WAPKS4 carries ROHS3 certification; all other parts carry standard RoHS Compliance.

Q: Do substitute parts require PCB layout modifications?

A: No. All substitute parts maintain identical mechanical dimensions (5.00mm × 3.00mm footprint, 0.80mm seated height) and 4-SMD flat lead package configuration. PCB layouts and assembly processes are fully compatible without modification.

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