SPMWHT541MP5WAPRS5 Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAPRS5 is a Samsung Semiconductor LED lighting component from the LM561B Plus series, featuring cool white 6500K color temperature in a 5630 surface mount package. This part is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. Organizations requiring this component for legacy system maintenance, repair operations, or existing inventory replenishment must evaluate active substitute parts that maintain electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Series	LM561B Plus
Color / CCT	White, Cool / 6500K
Forward Voltage (Vf) Typical	2.95	V
Test Current	65	mA
Luminous Flux @ 25°C	35	lm
Luminous Efficacy	183	lm/W
Maximum Current	180	mA
Viewing Angle	120	°
Package / Case	4-SMD, Flat Leads
Supplier Device Package	5630
Dimensions	5.00 × 3.00 × 0.80	mm
Thermal Resistance	15	°C/W
CRI	80
RoHS Status	RoHS Compliant
MSL Rating	2A (4 Weeks)

Substitute Part Grouping Explanation

Substitute parts for SPMWHT541MP5WAPRS5 are classified into two functional groups based on series designation and electrical characteristics:

Group 1: LM561B Plus Series (Direct Series Match) Parts SPMWHT541MP5WAP0S5, SPMWHT541MP5WAPKS5, SPMWHT541MP5WAPMS5, and SPMWHT541MP5WAPSS5 maintain identical series classification, forward voltage (2.95V), maximum current rating (180mA), and thermal resistance (15°C/W). These parts are mechanically and electrically interchangeable with the main part number. All Group 1 substitutes are classified as Active products.

Group 2: LM561C Series (Enhanced Performance Alternative) Parts SPMWHT541ML5XAP0S5, SPMWHT541ML5XAPKS5, and SPMWHT541ML5XAPMS5 represent the LM561C series, which shares identical color temperature (6500K), test current (65mA), luminous flux (35lm), viewing angle (120°), package dimensions, and CRI (80). The LM561C series differs in forward voltage (2.75V versus 2.95V), maximum current rating (200mA versus 180mA), luminous efficacy (196 lm/W versus 183 lm/W), and thermal resistance (12°C/W versus 15°C/W). These differences represent performance enhancements suitable for applications where lower forward voltage drop and improved thermal characteristics are beneficial.

Substitution eligibility is determined by matching color temperature, luminous flux output, viewing angle, package type, and CRI rating. Forward voltage and thermal resistance variations are acceptable within the specified electrical design envelope.

Parameter Comparison

Parameter	SPMWHT541MP5WAPRS5 (Main)	SPMWHT541MP5WAP0S5	SPMWHT541MP5WAPKS5	SPMWHT541MP5WAPMS5	SPMWHT541MP5WAPSS5	SPMWHT541ML5XAP0S5	SPMWHT541ML5XAPKS5	SPMWHT541ML5XAPMS5
Series	LM561B Plus	LM561B Plus	LM561B Plus	LM561B Plus	LM561B Plus	LM561C	LM561C	LM561C
Product Status	Not For New Designs	Active	Active	Active	Active	Active	Active	Active
Color / CCT	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K	White, Cool / 6500K
Vf (Typ)	2.95V	2.95V	2.95V	2.95V	2.95V	2.75V	2.75V	2.75V
Test Current	65mA	65mA	65mA	65mA	65mA	65mA	65mA	65mA
Luminous Flux @ 25°C	35lm	35lm	35lm	35lm	35lm	35lm	35lm	35lm
Luminous Efficacy	183 lm/W	183 lm/W	183 lm/W	183 lm/W	183 lm/W	196 lm/W	196 lm/W	196 lm/W
Current - Max	180mA	180mA	180mA	180mA	180mA	200mA	200mA	200mA
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
Dimensions (L × W × H)	5.00 × 3.00 × 0.80 mm	5.00 × 3.00 × 0.80 mm	5.00 × 3.00 × 0.80 mm	5.00 × 3.00 × 0.80 mm	5.00 × 3.00 × 0.80 mm	5.00 × 3.00 × 0.80 mm	5.00 × 3.00 × 0.80 mm	5.00 × 3.00 × 0.80 mm
Thermal Resistance	15°C/W	15°C/W	15°C/W	15°C/W	14°C/W	12°C/W	12°C/W	12°C/W
CRI	80	80	80	80	80	80	80	80
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
MSL Rating	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)	2A (4 Weeks)

Engineering Selection Recommendations

For Direct Replacement (LM561B Plus Series)

Parts SPMWHT541MP5WAP0S5, SPMWHT541MP5WAPKS5, SPMWHT541MP5WAPMS5, and SPMWHT541MP5WAPSS5 are classified as Active products and provide electrical and mechanical equivalence to SPMWHT541MP5WAPRS5. These parts maintain identical forward voltage, maximum current rating, and thermal characteristics. Selection among these four parts is determined by packaging tape configuration and reel specifications, which are indicated by the suffix designations (0S5, KS5, MS5, SS5). All four parts carry RoHS compliance certification and identical moisture sensitivity ratings. SPMWHT541MP5WAPSS5 carries ROHS3 compliance designation and features a thermal resistance of 14°C/W compared to 15°C/W in the other LM561B Plus variants.

For Enhanced Performance (LM561C Series)

Parts SPMWHT541ML5XAP0S5, SPMWHT541ML5XAPKS5, and SPMWHT541ML5XAPMS5 are classified as Active products and represent the LM561C series. These parts deliver improved luminous efficacy (196 lm/W versus 183 lm/W), lower forward voltage (2.75V versus 2.95V), higher maximum current rating (200mA versus 180mA), and superior thermal resistance (12°C/W versus 15°C/W). The LM561C series is suitable for applications where reduced power dissipation, lower voltage drop, or enhanced thermal performance provides system-level benefits. All LM561C variants carry RoHS compliance and identical moisture sensitivity ratings.

Compliance Considerations

All substitute parts maintain RoHS compliance status and identical MSL ratings (2A, 4 Weeks). The selection between LM561B Plus and LM561C series should be based on circuit design requirements for forward voltage and thermal management rather than compliance considerations, as both series meet regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541ML5XAP0S5 (LM561C) be used as a direct replacement for SPMWHT541MP5WAPRS5 (LM561B Plus)?

A: The LM561C series is electrically compatible within the specified parameter envelope. Both series share identical color temperature (6500K), luminous flux (35lm), viewing angle (120°), CRI (80), and package dimensions (5630, 4-SMD). The LM561C features lower forward voltage (2.75V versus 2.95V) and improved thermal resistance (12°C/W versus 15°C/W). Circuit designs must accommodate the 0.20V forward voltage difference. If the circuit is designed with voltage headroom or current-limiting resistors, the LM561C series provides enhanced performance characteristics.

Q: What is the difference between the suffix designations (0S5, KS5, MS5, SS5) in the LM561B Plus part numbers?

A: The suffix designations indicate different tape and reel packaging configurations used for automated assembly processes. These designations do not affect electrical performance or component specifications. Selection is determined by the specific tape format and reel size required by the assembly equipment. All variants within each series maintain identical electrical and thermal characteristics.

Q: Are all substitute parts currently in active production?

A: The main part SPMWHT541MP5WAPRS5 is classified as "Not For New Designs," indicating end-of-life status. All substitute parts listed are classified as Active products in Samsung's current portfolio. SPMWHT541MP5WAP0S5, SPMWHT541MP5WAPKS5, SPMWHT541MP5WAPMS5, SPMWHT541MP5WAPSS5, SPMWHT541ML5XAP0S5, SPMWHT541ML5XAPKS5, and SPMWHT541ML5XAPMS5 are available for new designs and ongoing production.

Q: What is the thermal resistance difference between LM561B Plus and LM561C series?

A: The LM561B Plus series has thermal resistance of 15°C/W, while the LM561C series has thermal resistance of 12°C/W. This 3°C/W improvement in the LM561C series results in lower junction temperature rise under identical operating conditions. For applications with thermal constraints or high ambient temperatures, the LM561C series provides superior thermal performance.

Q: Do all substitute parts have identical moisture sensitivity levels?

A: Yes, all substitute parts carry MSL rating 2A (4 Weeks), indicating identical moisture sensitivity classification. Storage and handling requirements are consistent across all listed parts.

Q: What is the luminous efficacy difference between the two series?

A: The LM561B Plus series delivers 183 lm/W, while the LM561C series delivers 196 lm/W at the specified test current (65mA). The LM561C series provides approximately 7% higher luminous efficacy, resulting in greater light output per unit of electrical power consumed.

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