SPMWHT541MP5WAQRS4 Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAQRS4 is a Samsung Semiconductor LM561B Plus white LED with cool color temperature of 5700K, designed for surface mount applications in 5630 package format. This component delivers 34 lumens at 65mA test current with a forward voltage of 2.95V and 120° viewing angle. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and replacement applications.

Key Parameters

Parameter	Value	Unit
Series	LM561B Plus	—
Color	White, Cool	—
CCT (Correlated Color Temperature)	5700K	K
Flux @ 25°C, 65mA Test Current	34 lm (33–35 lm range)	lm
Forward Voltage (Vf) Typical	2.95	V
Test Current	65	mA
Maximum Current	180	mA
Lumens per Watt @ Test Current	177	lm/W
Color Rendering Index (CRI)	80	—
Viewing Angle	120	°
Package / Case	4-SMD, Flat Leads	—
Supplier Device Package	5630	—
Size / Dimension	5.00 × 3.00	mm
Height – Seated (Max)	0.80	mm
Thermal Resistance of Package	15	°C/W
Mounting Type	Surface Mount	—
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	—
RoHS Status	RoHS Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the SPMWHT541MP5WAQRS4 are grouped based on strict electrical and mechanical parameter compatibility. All substitute parts maintain identical specifications across the following critical parameters:

Electrical Parameters (Must Match):

Forward Voltage (Vf): 2.95V typical
Test Current: 65mA
Maximum Current: 180mA
Flux @ 25°C, 65mA: 34 lm (33–35 lm range)
Lumens per Watt: 177 lm/W
Color Rendering Index (CRI): 80
Viewing Angle: 120°

Mechanical Parameters (Must Match):

Package / Case: 4-SMD, Flat Leads
Supplier Device Package: 5630
Size / Dimension: 5.00 × 3.00 mm
Height – Seated (Max): 0.80 mm
Mounting Type: Surface Mount
Moisture Sensitivity Level (MSL): 2A (4 Weeks)

Variable Parameters (Allowed Differences):

Color Temperature (CCT): 5700K or 5000K
Packaging Format: Tape & Reel (TR), Cut Tape (CT), or Cut Tape & Digi-Reel®
Thermal Resistance: 14–15°C/W
Product Status: Active (preferred) or Not For New Designs
RoHS Compliance Level: RoHS Compliant or ROHS3 Compliant

Substitutes are organized into two groups: those maintaining 5700K color temperature (direct equivalents) and those with 5000K color temperature (functional equivalents with different CCT).

Parameter Comparison

Part Number	Manufacturer	CCT (K)	Packaging	Product Status	Vf (V)	Flux @ 25°C (lm)	Current – Test (mA)	Thermal Resistance (°C/W)	RoHS Status	Inventory (Pcs)
SPMWHT541MP5WAQRS4	Samsung Semiconductor, Inc.	5700	Tape & Reel (TR)	Not For New Designs	2.95	34	65	15	RoHS Compliant	1029
SPMWHT541MP5WAQ0S4	Samsung Semiconductor, Inc.	5700	Tape & Reel (TR)	Active	2.95	34	65	15	RoHS Compliant	862
SPMWHT541MP5WAQKS4	Samsung Semiconductor, Inc.	5700	Tape & Reel (TR)	Active	2.95	34	65	15	ROHS3 Compliant	16110
SPMWHT541MP5WAQMS4	Samsung Semiconductor, Inc.	5700	Tape & Reel (TR)	Active	2.95	34	65	15	RoHS Compliant	1081
SPMWHT541MP5WAQSS4	Samsung Semiconductor, Inc.	5700	Tape & Reel (TR)	Active	2.95	34	65	14	ROHS3 Compliant	1138
SPMWHT541MP5WAR0S4	Samsung Semiconductor, Inc.	5000	Cut Tape (CT) & Digi-Reel®	Active	2.95	34	65	15	ROHS3 Compliant	500300
SPMWHT541MP5WARKS4	Samsung Semiconductor, Inc.	5000	Cut Tape (CT)	Active	2.95	34	65	15	ROHS3 Compliant	73313
SPMWHT541MP5WARMS4	Samsung Semiconductor, Inc.	5000	Tape & Reel (TR)	Active	2.95	34	65	15	ROHS3 Compliant	19382
SPMWHT541MP5WARNS4	Samsung Semiconductor, Inc.	5000	Tape & Reel (TR)	Active	2.95	34	65	15	RoHS Compliant	793

Engineering Selection Recommendations

Primary Substitutes (5700K Color Temperature – Direct Equivalents):

For applications requiring exact color temperature matching at 5700K, the following parts provide direct electrical and mechanical equivalence:

SPMWHT541MP5WAQKS4: Active product status with ROHS3 compliance. Highest inventory availability (16,110 pcs) among 5700K variants. Recommended for new production orders.
SPMWHT541MP5WAQSS4: Active product status with ROHS3 compliance and improved thermal resistance (14°C/W). Suitable for thermal-sensitive applications.
SPMWHT541MP5WAQMS4: Active product status with RoHS compliance. Moderate inventory (1,081 pcs).
SPMWHT541MP5WAQ0S4: Active product status with RoHS compliance. Lower inventory (862 pcs).

Secondary Substitutes (5000K Color Temperature – Functional Equivalents):

For applications where color temperature variation is acceptable, 5000K variants provide identical electrical performance with different packaging options:

SPMWHT541MP5WAR0S4: Active product status with ROHS3 compliance. Highest inventory availability (500,300 pcs). Available in Cut Tape & Digi-Reel® packaging.
SPMWHT541MP5WARKS4: Active product status with ROHS3 compliance. High inventory (73,313 pcs). Available in Cut Tape packaging.
SPMWHT541MP5WARMS4: Active product status with ROHS3 compliance. Available in Tape & Reel packaging (19,382 pcs).
SPMWHT541MP5WARNS4: Active product status with RoHS compliance. Available in Tape & Reel packaging (793 pcs).

Compliance Considerations:

All substitute parts maintain RoHS compliance. ROHS3-compliant variants (SPMWHT541MP5WAQKS4, SPMWHT541MP5WAQSS4, SPMWHT541MP5WAR0S4, SPMWHT541MP5WARKS4, SPMWHT541MP5WARMS4) represent current manufacturing standards. All parts maintain MSL 2A (4 Weeks) moisture sensitivity classification.

Packaging Selection:

Tape & Reel (TR): Recommended for automated assembly processes. Available in all 5700K variants and most 5000K variants.
Cut Tape (CT): Suitable for lower-volume applications. Available in 5000K variants.
Cut Tape & Digi-Reel®: Hybrid packaging option. Available in SPMWHT541MP5WAR0S4 (5000K).

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAQKS4 be used as a direct replacement for SPMWHT541MP5WAQRS4?

A: Yes. Both parts maintain identical electrical specifications (2.95V forward voltage, 65mA test current, 34 lm flux, 177 lm/W efficiency, 120° viewing angle), mechanical dimensions (5.00 × 3.00 mm, 0.80 mm height), and package format (4-SMD, Flat Leads, 5630). The primary difference is product status: SPMWHT541MP5WAQKS4 is Active while SPMWHT541MP5WAQRS4 is Not For New Designs. SPMWHT541MP5WAQKS4 also carries ROHS3 compliance versus RoHS compliance.

Q: What is the difference between 5700K and 5000K variants?

A: The difference is color temperature only. 5700K variants (SPMWHT541MP5WAQRS4, SPMWHT541MP5WAQ0S4, SPMWHT541MP5WAQKS4, SPMWHT541MP5WAQMS4, SPMWHT541MP5WAQSS4) produce cooler white light. 5000K variants (SPMWHT541MP5WAR0S4, SPMWHT541MP5WARKS4, SPMWHT541MP5WARMS4, SPMWHT541MP5WARNS4) produce slightly warmer white light. All other electrical and mechanical parameters remain identical. Selection depends on application color temperature requirements.

Q: Are packaging format differences significant for substitution?

A: Packaging format affects handling and assembly processes but not electrical performance. Tape & Reel (TR) packaging is standard for automated pick-and-place assembly. Cut Tape (CT) is suitable for manual assembly or lower-volume applications. Cut Tape & Digi-Reel® provides hybrid capability. Verify your assembly equipment compatibility before selecting packaging format.

Q: What does ROHS3 compliance mean compared to RoHS compliance?

A: ROHS3 represents the current RoHS Directive 2011/65/EU standard with updated substance restrictions. RoHS Compliant indicates compliance with earlier RoHS standards. Both certifications restrict hazardous substances. ROHS3-compliant parts (SPMWHT541MP5WAQKS4, SPMWHT541MP5WAQSS4, SPMWHT541MP5WAR0S4, SPMWHT541MP5WARKS4, SPMWHT541MP5WARMS4) represent current manufacturing standards and are recommended for new designs.

Q: Why is SPMWHT541MP5WAQRS4 marked "Not For New Designs"?

A: This status indicates the part has reached end-of-life and is no longer recommended for new product development. Active substitute parts (SPMWHT541MP5WAQKS4, SPMWHT541MP5WAQ0S4, SPMWHT541MP5WAQMS4, SPMWHT541MP5WAQSS4, and 5000K variants) should be used for new designs to ensure long-term component availability and support.

Q: Can I substitute a 5000K part into a design specified for 5700K?

A: Electrical and mechanical substitution is complete. However, color temperature change from 5700K to 5000K will alter the perceived light color. The 5000K variants produce warmer white light. Substitution is only appropriate if the application can tolerate this color temperature shift or if color temperature is not a critical specification.

Q: What is the thermal resistance difference between SPMWHT541MP5WAQSS4 (14°C/W) and other variants (15°C/W)?

A: SPMWHT541MP5WAQSS4 has improved thermal resistance (14°C/W) compared to standard variants (15°C/W). This represents approximately 6.7% better heat dissipation capability. For applications with thermal constraints or high ambient temperatures, SPMWHT541MP5WAQSS4 provides superior thermal performance while maintaining all other electrical specifications.

Q: Which substitute part has the highest inventory availability?

A: SPMWHT541MP5WAR0S4 (5000K variant) has the highest inventory at 500,300 pcs. For 5700K variants, SPMWHT541MP5WAQKS4 has the highest availability at 16,110 pcs. Inventory levels should be verified with suppliers as stock quantities change.

Q: Are all substitute parts suitable for automated assembly?

A: Parts in Tape & Reel (TR) packaging are optimized for automated pick-and-place assembly. Cut Tape (CT) variants are less suitable for high-speed automated assembly but work with manual or semi-automated processes. Verify your assembly equipment specifications before selecting packaging format.

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