SPMWHT541MP5WAPUS5 Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAPUS5 is a Samsung Semiconductor LED lighting component from the LM561B Plus series, featuring cool white 6500K color temperature in a 5630 surface mount package. This part is classified as "Not For New Designs," indicating it has reached end-of-life status. Organizations using this component in active production require equivalent substitute parts that maintain electrical and mechanical compatibility while offering active product status and improved availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	SPMWHT541MP5WAPUS5
Series	LM561B Plus
Color / CCT	White, Cool / 6500K
Forward Voltage (Vf) Typical	2.95V
Test Current	65mA
Luminous Flux @ 25°C	35lm (34lm ~ 36lm)
Lumens per Watt	183 lm/W
Maximum Current	180mA
Viewing Angle	120°
Package / Case	4-SMD, Flat Leads (5630)
Physical Dimensions	5.00mm L x 3.00mm W x 0.80mm H (Max)
CRI (Color Rendering Index)	80
Thermal Resistance	15°C/W
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	2A (4 Weeks)
Product Status	Not For New Designs

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MP5WAPUS5 is determined by strict adherence to the following critical parameters:

Primary Compatibility Criteria:

Color and CCT: White, Cool 6500K
Package Type: 4-SMD, Flat Leads (5630)
Physical Dimensions: 5.00mm x 3.00mm x 0.80mm maximum height
Viewing Angle: 120°
CRI: 80
Mounting Type: Surface Mount
Test Current: 65mA
Luminous Flux @ 25°C: 35lm (34lm ~ 36lm range)

Acceptable Variation Parameters:

Forward Voltage (Vf): 2.75V to 2.95V (within design tolerance)
Maximum Current: 180mA to 200mA (higher ratings acceptable)
Thermal Resistance: 12°C/W to 15°C/W (lower values acceptable)
Product Status: Active status preferred over end-of-life
Compliance: RoHS and REACH certifications maintained

Substitute parts must maintain identical electrical performance at the 65mA test current and deliver the specified 35lm luminous flux output. Physical package compatibility is non-negotiable for surface mount assembly processes.

Parameter Comparison

Parameter	SPMWHT541MP5WAPUS5 (Main)	SPMWHT541MP5WAP0S5	SPMWHT541MP5WAPKS5	SPMWHT541MP5WAPMS5	SPMWHT541MP5WAPSS5	SPMWHT541ML5XAPMS5	SPMWHT541ML5XAPKS5	SPMWHT541ML5XAP0S5
Series	LM561B Plus	LM561B Plus	LM561B Plus	LM561B Plus	LM561B Plus	LM561C	LM561C	LM561C
Color / CCT	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K
Vf (Typ)	2.95V	2.95V	2.95V	2.95V	2.95V	2.75V	2.75V	2.75V
Test Current	65mA	65mA	65mA	65mA	65mA	65mA	65mA	65mA
Luminous Flux @ 25°C	35lm (34-36lm)	35lm (34-36lm)	35lm (34-36lm)	35lm (34-36lm)	35lm (34-36lm)	35lm (34-36lm)	35lm (34-36lm)	35lm (34-36lm)
Lumens/Watt	183 lm/W	183 lm/W	183 lm/W	183 lm/W	183 lm/W	196 lm/W	196 lm/W	196 lm/W
Current - Max	180mA	180mA	180mA	180mA	180mA	200mA	200mA	200mA
Viewing Angle	120°	120°	120°	120°	120°	120°	120°	120°
Package / Case	4-SMD, Flat Leads	4-SMD, Flat Leads	4-SMD, Flat Leads	4-SMD, Flat Leads	4-SMD, Flat Leads	4-SMD, Flat Leads	4-SMD, Flat Leads	4-SMD, Flat Leads
Supplier Device Package	5630	5630	5630	5630	5630	5630	5630	5630
Size / Dimension	5.00mm x 3.00mm	5.00mm x 3.00mm	5.00mm x 3.00mm	5.00mm x 3.00mm	5.00mm x 3.00mm	5.00mm x 3.00mm	5.00mm x 3.00mm	5.00mm x 3.00mm
Height - Seated (Max)	0.80mm	0.80mm	0.80mm	0.80mm	0.80mm	0.80mm	0.80mm	0.80mm
CRI	80	80	80	80	80	80	80	80
Thermal Resistance	15°C/W	15°C/W	15°C/W	15°C/W	14°C/W	12°C/W	12°C/W	12°C/W
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Product Status	Not For New Designs	Active	Active	Active	Active	Active	Active	Active
Inventory Status	796 Pcs	1161 Pcs	954 Pcs	922 Pcs	979 Pcs	969 Pcs	1064 Pcs	690 Pcs

Engineering Selection Recommendations

LM561B Plus Series Substitutes (Direct Equivalents):

The parts SPMWHT541MP5WAP0S5, SPMWHT541MP5WAPKS5, SPMWHT541MP5WAPMS5, and SPMWHT541MP5WAPSS5 are direct electrical and mechanical equivalents to the SPMWHT541MP5WAPUS5. All maintain identical forward voltage (2.95V), test current (65mA), luminous flux (35lm), and thermal characteristics (15°C/W or lower). These parts carry Active product status, ensuring long-term availability and supply chain continuity. All variants maintain RoHS compliance. Selection among these four options should be based on inventory availability and internal supply chain preferences, as electrical performance is identical.

LM561C Series Substitutes (Enhanced Performance Alternative):

The parts SPMWHT541ML5XAPMS5, SPMWHT541ML5XAPKS5, and SPMWHT541ML5XAP0S5 represent the LM561C series, which offers improved efficiency (196 lm/W versus 183 lm/W) and lower thermal resistance (12°C/W versus 15°C/W). These parts operate at a lower forward voltage (2.75V) and support higher maximum current (200mA versus 180mA). All three LM561C variants maintain identical luminous flux output (35lm), viewing angle (120°), package dimensions, and CRI (80). These parts carry Active product status and full RoHS compliance. The LM561C series is suitable for applications where thermal management or power efficiency improvements are beneficial, provided circuit design accommodates the 0.20V lower forward voltage.

Compliance and Availability:

All substitute parts maintain RoHS compliance and identical moisture sensitivity levels (2A, 4 Weeks). The LM561B Plus variants (SPMWHT541MP5WAPSS5) additionally carry ROHS3 and REACH Unaffected certifications. All parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. Inventory levels across all substitutes exceed 690 units, ensuring adequate supply for production requirements.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAP0S5 be used as a direct replacement for SPMWHT541MP5WAPUS5?

A: Yes. Both parts are LM561B Plus series LEDs with identical electrical specifications: 2.95V forward voltage, 65mA test current, 35lm luminous flux, 183 lm/W efficiency, and 120° viewing angle. Physical package dimensions (5.00mm x 3.00mm x 0.80mm) and thermal resistance (15°C/W) are identical. The primary difference is product status: SPMWHT541MP5WAP0S5 is Active, while SPMWHT541MP5WAPUS5 is Not For New Designs. No circuit modifications are required.

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

A: The LM561C series offers improved efficiency (196 lm/W versus 183 lm/W) and lower thermal resistance (12°C/W versus 15°C/W). LM561C operates at 2.75V forward voltage compared to 2.95V for LM561B Plus, a 0.20V reduction. LM561C supports higher maximum current (200mA versus 180mA). Both series deliver identical 35lm luminous flux at 65mA test current and maintain 120° viewing angle and 80 CRI. Substitution from LM561B Plus to LM561C requires verification that circuit design accommodates the lower forward voltage.

Q: Are all substitute parts compatible with existing PCB layouts?

A: Yes. All substitute parts maintain identical 5630 package dimensions (5.00mm x 3.00mm) and 4-SMD flat lead configuration with 0.80mm maximum seated height. No PCB layout modifications are required. All parts are surface mount components with identical footprints and solder pad requirements.

Q: What is the significance of the part number suffix (0S5, KS5, MS5, SS5)?

A: The suffix designates packaging and tape reel configuration for automated assembly. All variants use identical Tape & Reel (TR) packaging. The suffix variations represent different supplier tape specifications or manufacturing batches. Electrical and mechanical specifications are identical across all suffix variants within the same series.

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

A: LM561C parts are electrically compatible with LM561B Plus applications provided the circuit design accommodates the 0.20V lower forward voltage (2.75V versus 2.95V). At identical 65mA test current, both series deliver 35lm luminous flux. The improved efficiency and lower thermal resistance of LM561C offer performance benefits. Circuit verification is required to confirm voltage tolerance before substitution.

Q: What is the inventory status for each substitute part?

A: SPMWHT541MP5WAP0S5: 1161 units; SPMWHT541MP5WAPKS5: 954 units; SPMWHT541MP5WAPMS5: 922 units; SPMWHT541MP5WAPSS5: 979 units; SPMWHT541ML5XAPMS5: 969 units; SPMWHT541ML5XAPKS5: 1064 units; SPMWHT541ML5XAP0S5: 690 units. All parts maintain adequate stock levels for production requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All LM561B Plus variants (SPMWHT541MP5WAP0S5, SPMWHT541MP5WAPKS5, SPMWHT541MP5WAPMS5) are RoHS Compliant. SPMWHT541MP5WAPSS5 carries ROHS3 Compliant and REACH Unaffected certifications. All LM561C variants (SPMWHT541ML5XAPMS5, SPMWHT541ML5XAPKS5, SPMWHT541ML5XAP0S5) are RoHS Compliant. All parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications.

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

A: LM561B Plus series has 15°C/W thermal resistance. LM561C series has 12°C/W thermal resistance, representing a 3°C/W improvement. Lower thermal resistance indicates better heat dissipation characteristics. This improvement is beneficial in applications with thermal constraints or high ambient temperature environments.

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