SPMWHT541MP5WAPRS4 LED LM561B Plus White 6500K Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAPRS4 is a Samsung Semiconductor LM561B Plus series white LED with cool color temperature of 6500K, designed for surface mount applications in 5630 package format. This component delivers 33 lumens at 65mA test current with a forward voltage of 2.95V and 120° viewing angle. The main part number is currently marked as "Not For New Designs," making identification of active equivalent and substitute parts essential for ongoing production and design continuity.

Key Parameters

Parameter	Value
Manufacturer	Samsung Semiconductor, Inc.
Series	LM561B Plus
Color / CCT	White, Cool / 6500K
Flux @ 25°C, 65mA	33lm (32lm ~ 34lm)
Forward Voltage (Vf) Typical	2.95V
Test Current	65mA
Maximum Current	180mA
Lumens/Watt @ 65mA	172 lm/W (typical)
CRI (Color Rendering Index)	80
Viewing Angle	120°
Package / Case	4-SMD, Flat Leads (5630)
Mounting Type	Surface Mount
Size / Dimension	0.197" L x 0.118" W (5.00mm x 3.00mm)
Height - Seated (Max)	0.031" (0.80mm)
Thermal Resistance	15°C/W
Moisture Sensitivity Level (MSL)	2A (4 Weeks)
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MP5WAPRS4 is determined by strict parametric matching across the following critical criteria:

Electrical Parameters (Must Match):

Color and CCT: White, Cool 6500K
Flux @ 25°C, 65mA test current: 33lm (32lm ~ 34lm range)
Forward Voltage (Vf) Typical: 2.95V
Test Current: 65mA
Maximum Current: 180mA
CRI: 80

Mechanical Parameters (Must Match):

Package / Case: 4-SMD, Flat Leads
Supplier Device Package: 5630
Size / Dimension: 0.197" L x 0.118" W (5.00mm x 3.00mm)
Height - Seated (Max): 0.031" (0.80mm)
Mounting Type: Surface Mount

Compliance Parameters (Must Match):

RoHS Status: RoHS Compliant or ROHS3 Compliant
Moisture Sensitivity Level: 2A (4 Weeks)

All substitute parts listed maintain identical electrical and mechanical specifications. Variations in product status (Active vs. Not For New Designs) and thermal resistance within acceptable engineering tolerances do not disqualify substitution eligibility.

Parameter Comparison

Parameter	SPMWHT541MP5WAPRS4	SPMWHT541MP5WAP0S4	SPMWHT541MP5WAPKS4	SPMWHT541MP5WAPMS4	SPMWHT541MP5WAPSS4
Manufacturer	Samsung Semiconductor, Inc.	Samsung Semiconductor, Inc.	Samsung Semiconductor, Inc.	Samsung Semiconductor, Inc.	Samsung Semiconductor, Inc.
Series	LM561B Plus	LM561B Plus	LM561B Plus	LM561B Plus	LM561B Plus
Product Status	Not For New Designs	Active	Active	Active	Active
Color / CCT	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K
Flux @ 25°C, 65mA	33lm (32lm ~ 34lm)	33lm (32lm ~ 34lm)	33lm (32lm ~ 34lm)	33lm (32lm ~ 34lm)	33lm (32lm ~ 34lm)
Forward Voltage (Vf) Typical	2.95V	2.95V	2.95V	2.95V	2.95V
Test Current	65mA	65mA	65mA	65mA	65mA
Maximum Current	180mA	180mA	180mA	180mA	180mA
Lumens/Watt @ 65mA	172 lm/W	172 lm/W	167 lm/W	172 lm/W	172 lm/W
CRI	80	80	80	80	80
Viewing Angle	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
Supplier Device Package	5630	5630	5630	5630	5630
Size / Dimension	0.197" L x 0.118" W (5.00mm x 3.00mm)	0.197" L x 0.118" W (5.00mm x 3.00mm)	0.197" L x 0.118" W (5.00mm x 3.00mm)	0.197" L x 0.118" W (5.00mm x 3.00mm)	0.197" L x 0.118" W (5.00mm x 3.00mm)
Height - Seated (Max)	0.031" (0.80mm)	0.031" (0.80mm)	0.031" (0.80mm)	0.031" (0.80mm)	0.031" (0.80mm)
Thermal Resistance	15°C/W	15°C/W	15°C/W	15°C/W	14°C/W
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant
MSL	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)
Packaging	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Recommendation: SPMWHT541MP5WAPKS4

The SPMWHT541MP5WAPKS4 is the preferred substitute for the SPMWHT541MP5WAPRS4. This part maintains all critical electrical and mechanical parameters while offering Active product status. With 48,482 units in stock, availability is optimal for production continuity. The part carries ROHS3 Compliant certification, providing enhanced regulatory compliance for current and future applications.

Secondary Recommendations: SPMWHT541MP5WAPMS4 and SPMWHT541MP5WAPSS4

Both SPMWHT541MP5WAPMS4 and SPMWHT541MP5WAPSS4 are fully qualified substitutes with Active product status. SPMWHT541MP5WAPMS4 maintains RoHS Compliant status with 919 units available. SPMWHT541MP5WAPSS4 offers ROHS3 Compliant certification with 874 units in stock and provides a thermal resistance of 14°C/W, representing a marginal improvement over the standard 15°C/W specification.

Alternative Option: SPMWHT541MP5WAP0S4

SPMWHT541MP5WAP0S4 is a qualified substitute with Active product status and 830 units in inventory. This part maintains all parametric equivalence and RoHS Compliant certification.

Selection Criteria:

For maximum inventory availability: SPMWHT541MP5WAPKS4
For enhanced thermal performance: SPMWHT541MP5WAPSS4
For regulatory compliance priority: SPMWHT541MP5WAPKS4 or SPMWHT541MP5WAPSS4 (ROHS3 Compliant)
For immediate production needs: Any of the four substitute parts meet full parametric and compliance requirements

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAPKS4 be used as a direct replacement for SPMWHT541MP5WAPRS4?

A: Yes. SPMWHT541MP5WAPKS4 is a parametric equivalent with identical electrical specifications (2.95V forward voltage, 65mA test current, 33lm flux, 6500K CCT), mechanical dimensions (5630 package, 5.00mm x 3.00mm), and mounting characteristics. The part is Active status and carries ROHS3 Compliant certification.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: Both certifications indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents the current version of the directive with updated substance restrictions. Parts marked ROHS3 Compliant meet the latest regulatory requirements and are suitable for new designs and ongoing production.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. All substitute parts listed (SPMWHT541MP5WAP0S4, SPMWHT541MP5WAPKS4, SPMWHT541MP5WAPMS4, SPMWHT541MP5WAPSS4) are supplied in Tape & Reel (TR) packaging with Moisture Sensitivity Level 2A (4 Weeks).

Q: Does the thermal resistance difference between 15°C/W and 14°C/W affect substitution?

A: No. The 1°C/W difference between SPMWHT541MP5WAPSS4 (14°C/W) and other substitutes (15°C/W) represents a marginal thermal improvement and does not disqualify any part from substitution. Selection between these parts should be based on availability, compliance requirements, and inventory status.

Q: Why is the main part number SPMWHT541MP5WAPRS4 marked "Not For New Designs"?

A: This designation indicates the part is in mature or end-of-life phase. All four substitute parts carry Active product status, making them the appropriate choice for new designs and ongoing production requirements.

Q: Can these LED parts be used interchangeably in existing PCB designs?

A: Yes. All substitute parts maintain identical package dimensions (5.00mm x 3.00mm), height (0.80mm maximum), and 4-SMD flat lead configuration. No PCB layout modifications are required for substitution.

Q: What is the significance of the 120° viewing angle specification?

A: The 120° viewing angle is a fixed specification across all parts in this substitution group. This parameter defines the light distribution pattern and is maintained identically across the main part and all substitutes, ensuring consistent optical performance in applications.

Q: Are there any restrictions on the maximum operating current for these parts?

A: All parts in this group support a maximum current of 180mA. The test current specification is 65mA, at which the flux output is 33lm. Operation at maximum current is permissible within the thermal and electrical design constraints of the application.

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