Equivalent & Substitute Parts for SPMWHT541MP7WARGS0

Part Overview

The SPMWHT541MP7WARGS0 is a Samsung Semiconductor LM561B Plus white LED in 5630 package format, rated for cool white 5000K color temperature. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. The part operates at 2.95V forward voltage with 65mA test current and delivers 120° viewing angle in a 4-SMD flat lead configuration.

Due to its discontinued design status, equivalent substitute parts from the active LM561B Plus and LM281B+ series are available to maintain design continuity and ensure supply chain reliability for existing applications.

Key Parameters

Parameter	Value	Unit
Series	LM561B Plus	—
Color	White, Cool	—
CCT (Correlated Color Temperature)	5000K	K
Voltage - Forward (Vf) Typical	2.95V	V
Current - Test	65mA	mA
Current - Maximum	180mA	mA
Viewing Angle	120°	—
CRI (Color Rendering Index)	90	—
Package / Case	4-SMD, Flat Leads	—
Supplier Device Package	5630	—
Size / Dimension	5.00mm x 3.00mm	L x W
Height - Seated (Max)	0.80mm	mm
Thermal Resistance of Package	20°C/W	°C/W
Mounting Type	Surface Mount	—
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

Primary Substitution Criteria:

Color: White, Cool
CCT: 5000K
Package / Case: 4-SMD, Flat Leads
Supplier Device Package: 5630
Physical Dimensions: 5.00mm x 3.00mm
Height - Seated (Max): 0.80mm
Viewing Angle: 120°
CRI: 90
Mounting Type: Surface Mount
RoHS Compliance: Required

Substitution Categories:

Category 1: Direct Series Equivalent SPMWHT541MP7WARMS0 is an active production variant of the same LM561B Plus series with identical electrical and mechanical specifications to the main part. This substitute maintains the same 2.95V forward voltage and 65mA test current, with improved thermal resistance (15°C/W vs. 20°C/W) and active product status.

Category 2: Parametric Equivalents (LM281B+ Series) Parts SPMWH1228FD7W2R0SJ, SPMWH1228FD7W2RKSJ, SPMWH1228FD7W2RMSJ, SPMWH1228FD7WAR0SJ, SPMWH1228FD7WARKSJ, and SPMWH1228FD7WARMSJ are from the LM281B+ series. These parts share identical package, color, CCT, viewing angle, and CRI specifications. Electrical differences include higher test current (150mA vs. 65mA) and forward voltage variations (2.9V or 3V vs. 2.95V). All are active production parts with ROHS3 compliance.

Parameter Comparison

Parameter	SPMWHT541MP7WARGS0 (Main)	SPMWHT541MP7WARMS0	SPMWH1228FD7W2R0SJ	SPMWH1228FD7W2RKSJ	SPMWH1228FD7W2RMSJ	SPMWH1228FD7WAR0SJ	SPMWH1228FD7WARKSJ	SPMWH1228FD7WARMSJ
Series	LM561B Plus	LM561B Plus	LM281B+	LM281B+	LM281B+	LM281B+	LM281B+	LM281B+
Product Status	Not For New Designs	Active	Active	Active	Active	Active	Active	Active
Color	White, Cool	White, Cool	White, Cool	White, Cool	White, Cool	White, Cool	White, Cool	White, Cool
CCT (K)	5000K	5000K	5000K	5000K	5000K	5000K	5000K	5000K
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
Viewing Angle	120°	120°	120°	120°	120°	120°	120°	120°
CRI	90	90	90	90	90	90	90	90
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 (mm)	5.00 x 3.00	5.00 x 3.00	5.00 x 3.00	5.00 x 3.00	5.00 x 3.00	5.00 x 3.00	5.00 x 3.00	5.00 x 3.00
Height - Seated (Max) (mm)	0.80	0.80	0.80	0.80	0.80	0.80	0.80	0.80
Thermal Resistance (°C/W)	20	15	25	25	25	25	25	25
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory (Pcs)	691	25904	812	660	988	670	712	1104

Engineering Selection Recommendations

For Direct Replacement (Preferred): SPMWHT541MP7WARMS0 is the recommended substitute for SPMWHT541MP7WARGS0. Both parts belong to the LM561B Plus series and maintain identical electrical specifications (2.95V, 65mA test current). The substitute offers improved thermal performance (15°C/W vs. 20°C/W) and active product status with ROHS3 compliance. Inventory availability is significantly higher (25,904 units), ensuring supply continuity. No circuit redesign is required.

For Parametric Substitution (LM281B+ Series): The LM281B+ series parts (SPMWH1228FD7W2R0SJ, SPMWH1228FD7W2RKSJ, SPMWH1228FD7W2RMSJ, SPMWH1228FD7WAR0SJ, SPMWH1228FD7WARKSJ, SPMWH1228FD7WARMSJ) are suitable when higher current operation is acceptable. These parts operate at 150mA test current (vs. 65mA) with forward voltages of 2.9V or 3V. All maintain identical package geometry, color, CCT, viewing angle, and CRI specifications. Selection between 2.9V and 3V variants depends on circuit voltage requirements. All LM281B+ variants are active production parts with ROHS3 compliance and REACH unaffected status.

Compliance Considerations: All substitute parts meet or exceed the RoHS compliance requirement of the main part. LM281B+ variants provide enhanced ROHS3 certification and REACH compliance documentation, suitable for applications with stringent regulatory requirements.

Frequently Asked Questions (FAQ)

Q1: Can SPMWHT541MP7WARMS0 be used as a direct replacement for SPMWHT541MP7WARGS0?

A: Yes. Both parts are LM561B Plus series LEDs with identical electrical specifications (2.95V forward voltage, 65mA test current, 180mA maximum current). They share the same 5630 package, 4-SMD flat lead configuration, physical dimensions (5.00mm x 3.00mm), and 0.80mm seated height. The substitute offers improved thermal resistance (15°C/W vs. 20°C/W) and active product status. No circuit modifications are required.

Q2: What are the key differences between LM561B Plus and LM281B+ series substitutes?

A: The primary difference is test current: LM561B Plus operates at 65mA, while LM281B+ operates at 150mA. Forward voltage also differs slightly (LM561B Plus: 2.95V; LM281B+: 2.9V or 3V depending on variant). All other parameters—color, CCT, viewing angle, CRI, package type, and physical dimensions—are identical. LM281B+ parts are suitable for applications requiring higher current operation.

Q3: Which LM281B+ variant should be selected: 2.9V or 3V forward voltage?

A: Selection depends on circuit design requirements. Parts with 2.9V forward voltage (SPMWH1228FD7W2R0SJ, SPMWH1228FD7W2RKSJ, SPMWH1228FD7W2RMSJ) are suitable for lower voltage applications. Parts with 3V forward voltage (SPMWH1228FD7WAR0SJ, SPMWH1228FD7WARKSJ, SPMWH1228FD7WARMSJ) are appropriate for higher voltage circuits. Verify circuit voltage compatibility before selection.

Q4: Are all substitute parts RoHS compliant?

A: Yes. The main part is RoHS Compliant. All substitute parts meet or exceed this requirement with ROHS3 Compliant certification. LM281B+ variants additionally carry REACH Unaffected status, providing enhanced regulatory documentation for applications with stringent compliance requirements.

Q5: What is the impact of thermal resistance differences on component selection?

A: The main part has 20°C/W thermal resistance. SPMWHT541MP7WARMS0 offers improved thermal performance at 15°C/W. LM281B+ variants have 25°C/W thermal resistance. In high-temperature applications or designs with limited thermal management, SPMWHT541MP7WARMS0 provides superior heat dissipation. LM281B+ parts are suitable for standard thermal environments.

Q6: Can the 5630 package be used interchangeably with other LED packages?

A: No. The 5630 package (5.00mm x 3.00mm, 0.80mm seated height) is specific to this product category. All listed substitutes use the identical 5630 package with 4-SMD flat lead configuration. PCB footprints and reflow profiles are compatible across all listed parts. Do not substitute with parts from different package families.

Q7: What inventory considerations should guide part selection?

A: SPMWHT541MP7WARMS0 has the highest inventory (25,904 units), ensuring immediate availability for volume production. LM281B+ variants range from 660 to 1,104 units. The main part (SPMWHT541MP7WARGS0) has 691 units but is not for new designs. For new designs, prioritize SPMWHT541MP7WARMS0 or LM281B+ variants based on electrical requirements and inventory lead times.

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