SPMWHT541ML5XAQMS5 LED LM561C Cool White 5700K Equivalent & Substitute Parts

Part Overview

The SPMWHT541ML5XAQMS5 is an LED lighting component from Samsung Semiconductor, Inc., belonging to the LM561C series. This surface-mount LED operates at cool white 5700K color temperature and is designed for applications requiring high luminous efficacy and consistent color rendering. The part is currently in active product status with 951 units in stock. Substitute parts are identified based on compatibility within the LM561C and LM561B Plus series, maintaining critical electrical and mechanical parameters while accommodating variations in color temperature and forward voltage specifications.

Substiute Parts

SPMWHT541ML5XAQMS5

Samsung Semiconductor, Inc.In Stock: 968SPMWHT541ML5XAQMS5 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

Substitute parts for the SPMWHT541ML5XAQMS5 are identified based on the following critical parameters that determine functional compatibility:

Mechanical Compatibility:

• Package type: 4-SMD, Flat Leads (5630 form factor)
• Dimensions: 5.00 mm × 3.00 mm
• Height: 0.80 mm maximum
• Mounting type: Surface Mount
• Tape & Reel packaging

Electrical Compatibility:

• Flux output @ 25°C, 65mA test current: 36 lm (35–37 lm range)
• Test current: 65 mA
• Viewing angle: 120°
• CRI: 80
• Color: White, Cool

Allowable Variations:

• Color temperature (CCT): 5000K–5700K range
• Forward voltage (Vf): 2.75V–2.95V range
• Maximum current: 180–200 mA
• Thermal resistance: 12–15°C/W
• Series: LM561C or LM561B Plus

All substitute parts maintain identical mechanical form factor, identical flux output at test conditions, and compatible electrical operating ranges. Variations in forward voltage and thermal resistance reflect differences between LM561C and LM561B Plus series generations.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (SPMWHT541ML5XAQMS5): Select the main part number when 5700K color temperature is required and LM561C series performance specifications are mandated. This part maintains the highest luminous efficacy at 201 lm/W and lowest thermal resistance at 12°C/W. Product status is active with adequate inventory.

First Substitute (SPMWHT541ML5XAR0S5): This LM561C series part is electrically and mechanically identical to the main part, differing only in color temperature (5000K versus 5700K). Select when 5000K cool white is acceptable and LM561C series specifications are required. Maintains 201 lm/W efficacy and 12°C/W thermal resistance. RoHS3 compliant. Inventory: 921 units.

Secondary Substitutes (SPMWHT541MP5WAR0S5 and SPMWHT541MP5WARMS5): These LM561B Plus series parts operate at 5000K and maintain identical flux output and viewing angle. Forward voltage increases to 2.95V, maximum current reduces to 180 mA, and thermal resistance increases to 15°C/W. Luminous efficacy is 188 lm/W. Select when LM561B Plus series is acceptable and higher inventory availability is beneficial. SPMWHT541MP5WAR0S5 offers 17,892 units in stock. Both are RoHS compliant.

Compliance Considerations: All parts are RoHS compliant (either RoHS or ROHS3 designation). All maintain MSL 2A (4 Weeks) moisture sensitivity. All are active products suitable for new designs.

Circuit Design Impact: Forward voltage difference (2.75V versus 2.95V) requires circuit recalculation for LM561B Plus substitutes. Maximum current reduction from 200 mA to 180 mA must be verified against application requirements. Thermal resistance increase from 12°C/W to 15°C/W affects thermal management in high-density applications.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541ML5XAR0S5 be used as a direct replacement for SPMWHT541ML5XAQMS5?

A: Yes, with color temperature consideration. Both are LM561C series with identical electrical characteristics (2.75V Vf, 201 lm/W, 12°C/W thermal resistance) and mechanical form factor (5630, 5.00 × 3.00 mm). The only difference is CCT: 5700K (main) versus 5000K (substitute). If the application accepts 5000K cool white, this is a direct substitute.

Q: What are the implications of using LM561B Plus series (SPMWHT541MP5WAR0S5 or SPMWHT541MP5WARMS5) instead of LM561C?

A: Three parameters change: (1) Forward voltage increases from 2.75V to 2.95V, requiring circuit recalculation for current-limiting resistors or driver circuits; (2) Maximum current reduces from 200 mA to 180 mA; (3) Thermal resistance increases from 12°C/W to 15°C/W, affecting thermal design. Luminous efficacy decreases from 201 lm/W to 188 lm/W. Mechanical compatibility remains identical.

Q: Are all substitute parts RoHS compliant?

A: Yes. SPMWHT541ML5XAQMS5 and SPMWHT541MP5WARMS5 are RoHS Compliant. SPMWHT541ML5XAR0S5 and SPMWHT541MP5WAR0S5 are ROHS3 Compliant. Both designations meet RoHS requirements.

Q: What is the difference between SPMWHT541MP5WAR0S5 and SPMWHT541MP5WARMS5?

A: Both are LM561B Plus series with identical electrical and mechanical specifications. The difference is in RoHS designation (ROHS3 versus RoHS Compliant) and inventory availability (17,892 units versus 1,069 units). Functionally, they are equivalent.

Q: Can I use these parts interchangeably in existing PCB designs?

A: Mechanical interchangeability is confirmed: all parts use 4-SMD, Flat Leads package (5630 form factor) with identical 5.00 × 3.00 mm dimensions and 0.80 mm height. Electrical interchangeability depends on forward voltage tolerance in your circuit design. If your circuit is designed for 2.75V operation, LM561B Plus parts (2.95V) require circuit modification. If your circuit accommodates 2.75–2.95V range, all parts are interchangeable.

Q: What is the impact of thermal resistance differences on thermal management?

A: LM561C series (12°C/W) dissipates heat more efficiently than LM561B Plus series (15°C/W). In high-density LED arrays or applications with limited thermal dissipation, the 3°C/W difference may affect junction temperature rise. Calculate thermal impact using: ΔT = P × Rθ, where P is power dissipation and Rθ is thermal resistance.

Q: Which substitute offers the best inventory availability?

A: SPMWHT541MP5WAR0S5 (LM561B Plus, 5000K) offers the highest inventory with 17,892 units in stock, compared to 951 units for the main part and 921 units for SPMWHT541ML5XAR0S5.