SPMWHT541ML5XARMS5 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541ML5XARMS5 is an LM561C series cool white LED (5000K) manufactured by Samsung Semiconductor, Inc. This surface mount LED operates at 2.75V forward voltage with a test current of 65mA, delivering 36 lumens at 25°C with a luminous efficacy of 201 lm/W. The component is housed in a 5630 package (4-SMD, flat leads) with a 120° viewing angle and is RoHS compliant with MSL 2A moisture sensitivity rating.

The product maintains active status in Samsung's portfolio. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity while maintaining electrical and mechanical compatibility within specified parameter ranges.

Substiute Parts

SPMWHT541ML5XARMS5

Samsung Semiconductor, Inc.In Stock: 990SPMWHT541ML5XARMS5 Datasheet

Current PartRFQ

SPMWHT541ML5XAR0S5

Samsung Semiconductor, Inc.In Stock: 1020SPMWHT541ML5XAR0S5 Datasheet

Parametric EquivalentRFQ

SPMWHT541MP5WAR0S5

Samsung Semiconductor, Inc.In Stock: 17963SPMWHT541MP5WAR0S5 Datasheet

Parametric EquivalentRFQ

SPMWHT541MP5WARMS5

Samsung Semiconductor, Inc.In Stock: 1147SPMWHT541MP5WARMS5 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541ML5XARMS5 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Color and correlated color temperature (CCT): White, Cool 5000K
• Flux output at 25°C test current: 36 lm (35–37 lm range)
• Test current: 65 mA
• Viewing angle: 120°
• Package type: 4-SMD, Flat Leads (5630)
• Physical dimensions: 5.00 mm × 3.00 mm
• Seated height: 0.80 mm maximum
• Mounting type: Surface Mount
• CRI: 80
• Compliance: RoHS and MSL 2A

Secondary Compatibility Parameters:

• Forward voltage (Vf) tolerance: Substitutes within 2.75V to 2.95V are acceptable for designs with regulated current sources
• Maximum current rating: Substitutes rated 180–200 mA maintain operational safety margins
• Thermal resistance: Substitutes rated 12–15°C/W are compatible with standard thermal management

The SPMWHT541ML5XARMS5 belongs to the LM561C series. Substitute parts include both LM561C variants and LM561B Plus variants, all sharing identical optical output, package geometry, and mounting characteristics.

Parameter Comparison

Engineering Selection Recommendations

SPMWHT541ML5XAR0S5 (LM561C Series)

This substitute maintains identical electrical and optical specifications to the main part number. Both components are LM561C series devices with 2.75V forward voltage, 201 lm/W efficacy, and 12°C/W thermal resistance. The primary distinction is RoHS certification status (ROHS3 Compliant versus RoHS Compliant). Selection between SPMWHT541ML5XARMS5 and SPMWHT541ML5XAR0S5 depends on specific regulatory requirements for the end application. Both parts are mechanically and electrically interchangeable.

SPMWHT541MP5WAR0S5 and SPMWHT541MP5WARMS5 (LM561B Plus Series)

These substitutes represent the LM561B Plus generation with higher forward voltage (2.95V typical) and reduced maximum current rating (180 mA versus 200 mA). Optical output remains identical at 36 lumens. Luminous efficacy is 188 lm/W compared to 201 lm/W for the LM561C series. Thermal resistance increases to 15°C/W. These parts are suitable for applications where the higher forward voltage and lower efficacy are acceptable within circuit design parameters. Both LM561B Plus variants are ROHS3 compliant (SPMWHT541MP5WAR0S5) or RoHS compliant (SPMWHT541MP5WARMS5).

Selection Basis:

• Electrical compatibility: All substitutes deliver identical 36 lm optical output at 65 mA test current with 120° viewing angle
• Mechanical compatibility: All parts share 5630 package geometry, 5.00 × 3.00 mm footprint, and 0.80 mm seated height
• Compliance: All parts meet MSL 2A moisture sensitivity and RoHS requirements
• Series selection: LM561C variants (SPMWHT541ML5XARMS5, SPMWHT541ML5XAR0S5) offer superior efficacy (201 lm/W) and lower forward voltage; LM561B Plus variants (SPMWHT541MP5WAR0S5, SPMWHT541MP5WARMS5) provide alternative sourcing with acceptable performance trade-offs

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAR0S5 or SPMWHT541MP5WARMS5 be used as direct replacements for SPMWHT541ML5XARMS5?

A: Yes, with circuit design consideration. All four parts deliver identical 36 lm optical output at 65 mA and share the same 5630 package footprint. The LM561B Plus variants operate at 2.95V forward voltage (versus 2.75V for LM561C) and have a maximum current rating of 180 mA (versus 200 mA). Designs using regulated current sources will function identically. Designs relying on forward voltage regulation require verification that the 0.20V increase does not exceed circuit tolerance.

Q: What is the difference between SPMWHT541ML5XARMS5 and SPMWHT541ML5XAR0S5?

A: Both are LM561C series devices with identical electrical and optical specifications: 2.75V forward voltage, 65 mA test current, 36 lm output, 201 lm/W efficacy, and 12°C/W thermal resistance. The difference is RoHS certification status: SPMWHT541ML5XARMS5 is RoHS Compliant, while SPMWHT541ML5XAR0S5 is ROHS3 Compliant. Selection depends on regulatory requirements for the target application.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All four parts (main and three substitutes) are supplied in Tape & Reel (TR) packaging. All use the 5630 package type with 4-SMD, flat leads configuration. Physical dimensions are identical: 5.00 mm length × 3.00 mm width × 0.80 mm maximum seated height. PCB footprints and reflow soldering profiles are interchangeable.

Q: What is the impact of the 0.20V forward voltage difference between LM561C and LM561B Plus variants?

A: The LM561B Plus series operates at 2.95V typical forward voltage compared to 2.75V for LM561C. This 0.20V increase affects power dissipation and circuit design. In constant-current driver applications, the voltage difference is absorbed by the driver and has no impact on LED performance. In voltage-regulated circuits, the higher forward voltage reduces available headroom and may require circuit adjustment. Thermal resistance also increases from 12°C/W to 15°C/W for LM561B Plus, affecting thermal management calculations.

Q: Can these LEDs be used interchangeably in existing designs without modification?

A: LM561C variants (SPMWHT541ML5XARMS5 and SPMWHT541ML5XAR0S5) are fully interchangeable with no design modification required. LM561B Plus variants (SPMWHT541MP5WAR0S5 and SPMWHT541MP5WARMS5) require verification that the 0.20V forward voltage increase and 3°C/W thermal resistance increase are within design margins. All parts share identical optical output, package geometry, and mounting characteristics.

Q: What compliance certifications apply to each part?

A: All four parts are RoHS compliant and carry MSL 2A (4 Weeks) moisture sensitivity rating. SPMWHT541ML5XARMS5 and SPMWHT541MP5WARMS5 are marked RoHS Compliant. SPMWHT541ML5XAR0S5 and SPMWHT541MP5WAR0S5 are marked ROHS3 Compliant. All parts carry ECCN EAR99 and HTSUS 8541.41.0000 classifications.