Samsung SPMWHT541MP5WAPGS5 LED Equivalent & Substitute Parts

Part Overview

The Samsung SPMWHT541MP5WAPGS5 is a cool white LED lighting component from the LM561B Plus series, designed for surface mount applications in 5630 package format. This part operates at 6500K color temperature with a 120° viewing angle and delivers 65mA test current at 2.95V forward voltage. The component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support existing production requirements.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	SPMWHT541MP5WAPGS5	—
Manufacturer	Samsung Semiconductor, Inc.	—
Series	LM561B Plus	—
Color / CCT	White, Cool / 6500K	—
Current - Test	65	mA
Voltage - Forward (Vf) Typical	2.95	V
Current - Maximum	180	mA
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
CRI (Color Rendering Index)	80	—
Thermal Resistance of Package	20	°C/W
Product Status	Not For New Designs	—
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	—

Substitute Part Grouping Explanation

Substitute parts for the SPMWHT541MP5WAPGS5 are classified into two categories based on electrical and mechanical compatibility:

Direct Substitute (Same Series): The SPMWHT541MP5WAPKS4 is a direct substitute within the LM561B Plus series. This part maintains identical electrical specifications (6500K, 2.95V Vf, 65mA test current, 180mA maximum current) and mechanical parameters (5630 package, 4-SMD flat leads, 120° viewing angle, identical dimensions). The primary difference is product status: SPMWHT541MP5WAPKS4 is Active, whereas SPMWHT541MP5WAPGS5 is Not For New Designs. Thermal resistance improves from 20°C/W to 15°C/W. This part is suitable for direct replacement in existing designs.

Parametric Equivalents (Different Series): The SPMWH1228FD5W2P0SJ, SPMWH1228FD5W2PKSJ, and SPMWH1228FD5W2PMSJ are parametric equivalents from the LM281B+ series. These parts share identical color temperature (6500K), viewing angle (120°), package format (5630, 4-SMD flat leads), and physical dimensions. However, they operate at different electrical parameters: 150mA test current and 2.9V Vf (versus 65mA and 2.95V for the main part), with a maximum current of 200mA. Thermal resistance is 25°C/W. These parts are suitable for applications where the higher current rating and different forward voltage are acceptable within circuit design constraints.

Substitution is permitted only when the following conditions are met:

Color temperature (6500K) is maintained
Package format (5630, 4-SMD, flat leads) is identical
Physical dimensions and height are compatible with PCB layout
Viewing angle (120°) meets application requirements
CRI (80) is acceptable for the end application
Forward voltage and current ratings are compatible with driver circuit design

Parameter Comparison

Parameter	SPMWHT541MP5WAPGS5 (Main)	SPMWHT541MP5WAPKS4 (Direct Substitute)	SPMWH1228FD5W2P0SJ (Parametric Equivalent)	SPMWH1228FD5W2PKSJ (Parametric Equivalent)	SPMWH1228FD5W2PMSJ (Parametric Equivalent)
Series	LM561B Plus	LM561B Plus	LM281B+	LM281B+	LM281B+
Color / CCT	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K
Current - Test	65 mA	65 mA	150 mA	150 mA	150 mA
Voltage - Forward (Vf) Typical	2.95 V	2.95 V	2.9 V	2.9 V	2.9 V
Current - Maximum	180 mA	180 mA	200 mA	200 mA	200 mA
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	5.00 × 3.00 mm	5.00 × 3.00 mm	5.00 × 3.00 mm	5.00 × 3.00 mm	5.00 × 3.00 mm
Height - Seated (Max)	0.80 mm	0.80 mm	0.80 mm	0.80 mm	0.80 mm
CRI (Color Rendering Index)	80	80	80	80	80
Thermal Resistance of Package	20°C/W	15°C/W	25°C/W	25°C/W	25°C/W
Product Status	Not For New Designs	Active	Active	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Specifications): The SPMWHT541MP5WAPKS4 is the recommended substitute for the SPMWHT541MP5WAPGS5. Both parts are manufactured by Samsung Semiconductor, Inc., operate at identical electrical parameters (65mA test current, 2.95V Vf, 180mA maximum), and share the same package format and physical dimensions. The SPMWHT541MP5WAPKS4 carries Active product status and ROHS3 compliance, providing superior long-term supply chain availability compared to the Not For New Designs status of the original part. The improved thermal resistance (15°C/W versus 20°C/W) offers enhanced thermal performance. This part is suitable for direct substitution in existing production and design continuity applications.

For Parametric Equivalence (Different Electrical Specifications): The SPMWH1228FD5W2P0SJ, SPMWH1228FD5W2PKSJ, and SPMWH1228FD5W2PMSJ are parametric equivalents suitable only when circuit design accommodates higher test current (150mA versus 65mA), slightly lower forward voltage (2.9V versus 2.95V), and higher maximum current rating (200mA versus 180mA). All three parts maintain identical color temperature (6500K), viewing angle (120°), package format (5630), and physical dimensions. All carry Active product status and ROHS3 compliance. These parts are interchangeable with each other within the LM281B+ series. Selection among these three variants should be based on inventory availability and supply chain logistics, as electrical and mechanical specifications are identical.

Compliance Considerations: All substitute parts maintain RoHS3 compliance and identical moisture sensitivity levels (2A, 4 Weeks). The SPMWHT541MP5WAPKS4 provides the most direct path for design continuity. The LM281B+ series parts (SPMWH1228FD5W2P0SJ, SPMWH1228FD5W2PKSJ, SPMWH1228FD5W2PMSJ) require circuit-level validation to confirm compatibility with driver and power supply specifications.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAPKS4 be used as a direct replacement for SPMWHT541MP5WAPGS5?

A: Yes. Both parts are from the Samsung LM561B Plus series and share identical electrical specifications (65mA test current, 2.95V forward voltage, 180mA maximum current), color temperature (6500K), viewing angle (120°), and package format (5630, 4-SMD flat leads). Physical dimensions and height are identical. The SPMWHT541MP5WAPKS4 is Active status with improved thermal resistance (15°C/W versus 20°C/W), making it suitable for direct substitution.

Q: What are the key differences between the LM561B Plus and LM281B+ series?

A: The primary differences are test current and forward voltage. LM561B Plus (SPMWHT541MP5WAPGS5 and SPMWHT541MP5WAPKS4) operates at 65mA test current and 2.95V Vf. LM281B+ (SPMWH1228FD5W2P0SJ, SPMWH1228FD5W2PKSJ, SPMWH1228FD5W2PMSJ) operates at 150mA test current and 2.9V Vf. Maximum current ratings differ (180mA versus 200mA). Thermal resistance is higher for LM281B+ (25°C/W versus 15-20°C/W). Color temperature, viewing angle, package format, and physical dimensions are identical across both series.

Q: Can I use SPMWH1228FD5W2P0SJ, SPMWH1228FD5W2PKSJ, or SPMWH1228FD5W2PMSJ as substitutes?

A: These parts are parametric equivalents, not direct substitutes. They maintain identical color temperature (6500K), viewing angle (120°), package format (5630), and physical dimensions. However, they operate at different electrical parameters: 150mA test current versus 65mA, 2.9V Vf versus 2.95V, and 200mA maximum current versus 180mA. Substitution is permitted only when the driver circuit and power supply design accommodate these electrical differences. Circuit-level validation is required before implementation.

Q: Are all substitute parts RoHS compliant?

A: Yes. The SPMWHT541MP5WAPKS4 is ROHS3 compliant. The LM281B+ series parts (SPMWH1228FD5W2P0SJ, SPMWH1228FD5W2PKSJ, SPMWH1228FD5W2PMSJ) are also ROHS3 compliant. All parts maintain identical moisture sensitivity levels (2A, 4 Weeks).

Q: What is the difference between SPMWH1228FD5W2P0SJ, SPMWH1228FD5W2PKSJ, and SPMWH1228FD5W2PMSJ?

A: These three parts are electrically and mechanically identical. All are from the LM281B+ series with 150mA test current, 2.9V Vf, 200mA maximum current, 6500K color temperature, 120° viewing angle, and 5630 package format. Differences exist only in part number designation and inventory availability. Selection should be based on supply chain logistics and inventory status.

Q: What is the thermal resistance difference, and does it matter?

A: SPMWHT541MP5WAPGS5 has 20°C/W thermal resistance. SPMWHT541MP5WAPKS4 has 15°C/W (improved). LM281B+ series parts have 25°C/W (higher). Lower thermal resistance indicates better heat dissipation. For applications with thermal constraints, SPMWHT541MP5WAPKS4 offers superior performance. For applications with relaxed thermal requirements, LM281B+ series parts are acceptable.

Q: Can I mix different substitute parts in the same design?

A: Direct substitutes (SPMWHT541MP5WAPGS5 and SPMWHT541MP5WAPKS4) can be mixed without circuit modification. Parametric equivalents (LM281B+ series) should not be mixed with LM561B Plus series in the same circuit unless the driver design explicitly accommodates both current and voltage specifications. Consistency within a design is recommended for manufacturing and quality control purposes.

Q: What packaging format is used for all these parts?

A: All parts use Tape & Reel (TR) packaging in 5630 supplier device package format. Physical dimensions are 5.00mm × 3.00mm with maximum seated height of 0.80mm. All use 4-SMD flat leads configuration, suitable for standard surface mount assembly processes.

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