Equivalent & Substitute Parts for SPMWHT541MP7WAQUS0

Part Overview

The SPMWHT541MP7WAQUS0 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 operates at 2.95V forward voltage with 65mA test current and delivers 120° viewing angle with 90 CRI. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for ongoing production and field replacement requirements.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	SPMWHT541MP7WAQUS0	—
Manufacturer	Samsung Semiconductor, Inc.	—
Series	LM561B Plus	—
Color	White, Cool	—
CCT (Correlated Color Temperature)	5700K	K
Voltage - Forward (Vf) Typical	2.95V	V
Current - Test	65mA	mA
Current - Maximum	180mA	mA
CRI (Color Rendering Index)	90	—
Viewing Angle	120°	—
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)	—
Thermal Resistance of Package	20°C/W	°C/W
Mounting Type	Surface Mount	—
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	—
Product Status	Not For New Designs	—

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MP7WAQUS0 is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

Color specification: White, Cool 5700K
Package format: 5630 (4-SMD, Flat Leads)
Mechanical dimensions: 5.00mm x 3.00mm footprint, 0.80mm maximum height
Viewing angle: 120°
CRI: 90
RoHS compliance status

Secondary Compatibility Parameters:

Forward voltage (Vf): Range 2.9V to 3.0V acceptable
Test current: 65mA to 150mA operational range
Maximum current rating: 180mA to 200mA
Thermal resistance: 15°C/W to 25°C/W

Substitute parts are grouped into two categories: direct equivalents (same series LM561B Plus) and parametric equivalents (alternative series LM281B+ with compatible electrical and mechanical specifications).

Parameter Comparison

Parameter	SPMWHT541MP7WAQUS0	SPMWHT541MP7WAQ0S0	SPMWH1228FD7W2Q0SJ	SPMWH1228FD7W2QKSJ	SPMWH1228FD7W2QMSJ	SPMWH1228FD7WAQ0SJ	SPMWH1228FD7WAQKSJ	SPMWH1228FD7WAQMSJ
Series	LM561B Plus	LM561B Plus	LM281B+	LM281B+	LM281B+	LM281B+	LM281B+	LM281B+
Color	White, Cool	White, Cool	White, Cool	White, Cool	White, Cool	White, Cool	White, Cool	White, Cool
CCT (K)	5700K	5700K	5700K	5700K	5700K	5700K	5700K	5700K
Vf (Typ)	2.95V	2.95V	2.9V	2.9V	2.9V	3V	3V	3V
Current - Test	65mA	65mA	150mA	150mA	150mA	150mA	150mA	150mA
Current - Max	180mA	180mA	200mA	200mA	200mA	200mA	200mA	200mA
CRI	90	90	90	90	90	90	90	90
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
Thermal Resistance	20°C/W	15°C/W	25°C/W	25°C/W	25°C/W	25°C/W	25°C/W	25°C/W
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Not For New Designs	Active	Active	Active	Active	Active	Active	Active
Inventory Status	805 Pcs	716 Pcs	727 Pcs	653 Pcs	863 Pcs	1159 Pcs	853 Pcs	1083 Pcs

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

SPMWHT541MP7WAQ0S0 is the direct equivalent within the LM561B Plus series. This part maintains identical electrical characteristics (2.95V Vf, 65mA test current, 180mA maximum) and mechanical specifications. The primary advantage is Active product status, ensuring long-term availability. Thermal resistance improves to 15°C/W compared to the original 20°C/W specification. RoHS compliance is maintained. This part is suitable for direct replacement in existing designs without circuit modification.

Parametric Equivalents (LM281B+ Series):

The LM281B+ series parts (SPMWH1228FD7W2Q0SJ, SPMWH1228FD7W2QKSJ, SPMWH1228FD7W2QMSJ, SPMWH1228FD7WAQ0SJ, SPMWH1228FD7WAQKSJ, SPMWH1228FD7WAQMSJ) provide parametric equivalence with the following considerations:

All maintain 5700K color temperature, 120° viewing angle, and 90 CRI
All are Active product status with ROHS3 compliance
Forward voltage ranges from 2.9V to 3.0V, within acceptable tolerance for most applications
Test current is 150mA (higher than original 65mA), with maximum current of 200mA
Thermal resistance is 25°C/W (higher than original 20°C/W)
Mechanical footprint and height are identical

Selection between LM281B+ variants depends on forward voltage requirement: parts with "W2Q" designation operate at 2.9V, while "WAQ" designated parts operate at 3.0V.

Compliance Considerations:

All substitute parts maintain RoHS compliance. LM281B+ series parts carry ROHS3 designation with REACH Unaffected status, providing enhanced regulatory coverage for new applications.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP7WAQ0S0 be used as a direct replacement for SPMWHT541MP7WAQUS0?

A: Yes. SPMWHT541MP7WAQ0S0 is a direct equivalent with identical electrical specifications (2.95V, 65mA test current) and mechanical package (5630, 4-SMD, Flat Leads). The primary difference is Active product status versus Not For New Designs status of the original part. Thermal resistance is improved at 15°C/W.

Q: What is the difference between LM281B+ variants with "W2Q" and "WAQ" designations?

A: The primary difference is forward voltage. "W2Q" designated parts (SPMWH1228FD7W2Q0SJ, SPMWH1228FD7W2QKSJ, SPMWH1228FD7W2QMSJ) operate at 2.9V typical forward voltage. "WAQ" designated parts (SPMWH1228FD7WAQ0SJ, SPMWH1228FD7WAQKSJ, SPMWH1228FD7WAQMSJ) operate at 3.0V typical forward voltage. All other electrical and mechanical parameters are identical.

Q: Are LM281B+ parts compatible with designs using LM561B Plus?

A: LM281B+ parts are parametrically compatible for applications where the following conditions are met: color temperature 5700K, CRI 90, viewing angle 120°, and 5630 package format. Circuit design must accommodate forward voltage range of 2.9V to 3.0V and test current of 150mA. Thermal management design should account for thermal resistance of 25°C/W.

Q: What is the significance of the thermal resistance difference between parts?

A: SPMWHT541MP7WAQ0S0 has thermal resistance of 15°C/W, while LM281B+ series parts have 25°C/W. Lower thermal resistance indicates better heat dissipation. In high-current or high-ambient-temperature applications, the improved thermal performance of SPMWHT541MP7WAQ0S0 may be advantageous. LM281B+ parts require adequate thermal management design to maintain junction temperature within specified limits.

Q: Can I use LM281B+ parts in existing PCB designs without modification?

A: Mechanical compatibility is confirmed: identical 5630 package footprint, 5.00mm x 3.00mm dimensions, and 0.80mm maximum height. Electrical compatibility requires verification of forward voltage tolerance in the circuit design. If the original design operates at 2.95V with 65mA, substitution with 150mA test current LM281B+ parts requires confirmation that the current-limiting circuit can accommodate the higher test current specification.

Q: What is the inventory status for these substitute parts?

A: SPMWHT541MP7WAQ0S0 has 716 pieces in stock. LM281B+ series parts have varying inventory: SPMWH1228FD7W2Q0SJ (727 pcs), SPMWH1228FD7W2QKSJ (653 pcs), SPMWH1228FD7W2QMSJ (863 pcs), SPMWH1228FD7WAQ0SJ (1159 pcs), SPMWH1228FD7WAQKSJ (853 pcs), SPMWH1228FD7WAQMSJ (1083 pcs). All parts are available as new original components in Tape & Reel packaging.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message