SPMWHT541MP5WAQ0SD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAQ0SD is a Samsung Semiconductor LM561B Plus white cool LED (5700K) in 5630 surface mount package with 4-SMD flat leads configuration. This part is classified as "Not For New Designs" and operates at 2.95V forward voltage with 65mA test current, delivering 35lm at 25°C and 183 lm/W efficiency.

Due to its discontinued design status, equivalent substitute parts from the active LM561C series are available. These alternatives maintain critical electrical and mechanical compatibility while offering improved thermal characteristics and active product support.

Substiute Parts

SPMWHT541MP5WAQ0SD

Samsung Semiconductor, Inc.In Stock: 1144SPMWHT541MP5WAQ0SD Datasheet

Current PartRFQ

SPMWHT541MP5WAQ0S5

Samsung Semiconductor, Inc.In Stock: 1106SPMWHT541MP5WAQ0S5 Datasheet

SimilarRFQ

SPMWHT541ML5XAQ0S0

Samsung Semiconductor, Inc.In Stock: 7948SPMWHT541ML5XAQ0S0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XAQKS0

Samsung Semiconductor, Inc.In Stock: 155506SPMWHT541ML5XAQKS0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XAR0S0

Samsung Semiconductor, Inc.In Stock: 1023SPMWHT541ML5XAR0S0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XARKS0

Samsung Semiconductor, Inc.In Stock: 1223SPMWHT541ML5XARKS0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Primary Compatibility Criteria:

• Color Temperature (CCT): 5700K or 5000K acceptable
• Color Rendering Index (CRI): 80 (fixed across all parts)
• Package Type: 4-SMD, Flat Leads (5630 supplier package)
• Dimensions: 5.00mm × 3.00mm (identical)
• Height: 0.80mm maximum (identical)
• Viewing Angle: 120° (identical)
• Test Current: 65mA (identical)
• Maximum Current: 180mA (identical)
• Mounting Type: Surface Mount (identical)
• Moisture Sensitivity: 2A, 4 Weeks (identical)

Acceptable Electrical Variations:

• Forward Voltage (Vf): 2.75V to 2.95V (within typical operating range)
• Luminous Flux: 33–37lm range (specification tolerance maintained)
• Lumens per Watt: 183–196 lm/W (efficiency improvement acceptable)
• Thermal Resistance: 12–16°C/W (lower values indicate improved thermal performance)

Product Status Consideration:

• Main part (SPMWHT541MP5WAQ0SD): Not For New Designs
• Substitute parts: Active product status preferred for long-term availability

Packaging Format:

• Tape & Reel (TR) and Cut Tape (CT) formats are both acceptable for substitution

Parameter Comparison

Engineering Selection Recommendations

For 5700K Color Temperature Requirement:

SPMWHT541MP5WAQ0S5 is the direct active equivalent. It maintains LM561B Plus series lineage with identical 5700K CCT and 2.95V forward voltage. Product status is Active, ensuring continued availability and supply chain stability. Thermal resistance improves from 16°C/W to 15°C/W, and luminous flux increases to 36lm with 188 lm/W efficiency.

SPMWHT541ML5XAQ0S0 and SPMWHT541ML5XAQKS0 are parametric equivalents from the LM561C series. Both maintain 5700K CCT and 35lm flux output. Forward voltage reduces to 2.75V–2.8V, and thermal resistance improves to 12°C/W. Efficiency increases to 192–196 lm/W. SPMWHT541ML5XAQKS0 offers highest inventory availability (155,477 pcs) in Cut Tape format. Both carry Active product status and ROHS3 compliance.

For 5000K Color Temperature Requirement:

SPMWHT541ML5XAR0S0 and SPMWHT541ML5XARKS0 provide 5000K CCT alternatives. Both are LM561C series with Active status, 35lm flux, and 12°C/W thermal resistance. Forward voltage is 2.75V or 2.8V respectively. Efficiency reaches 192–196 lm/W. These parts are suitable when cooler color temperature is acceptable within application tolerance.

Compliance and Regulatory:

All substitute parts maintain RoHS compliance (RoHS or ROHS3 status). Moisture Sensitivity Level remains 2A (4 Weeks) across all alternatives. ECCN and HTSUS classifications are identical.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAQ0S5 directly replace SPMWHT541MP5WAQ0SD?

A: Yes. Both are LM561B Plus series with identical 5700K CCT, 2.95V forward voltage, 65mA test current, and 120° viewing angle. SPMWHT541MP5WAQ0S5 is Active product status versus "Not For New Designs" for the original part. Mechanical and electrical compatibility is complete. Thermal resistance improves from 16°C/W to 15°C/W.

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

A: Both series maintain identical package (5630, 4-SMD flat leads), dimensions (5.00mm × 3.00mm), and viewing angle (120°). LM561C offers improved thermal resistance (12°C/W versus 16°C/W) and higher efficiency (192–196 lm/W versus 183–188 lm/W). Forward voltage is lower in LM561C (2.75–2.8V versus 2.95V). Both series deliver 35lm flux at 65mA test current with CRI 80.

Q: Can I use SPMWHT541ML5XAQKS0 (Cut Tape) instead of Tape & Reel packaging?

A: Cut Tape (CT) and Tape & Reel (TR) formats contain identical components. Selection depends on assembly process requirements. Cut Tape is suitable for manual or small-batch assembly. Tape & Reel is standard for automated pick-and-place equipment. SPMWHT541ML5XAQKS0 offers 155,477 pcs inventory availability in Cut Tape format.

Q: What is the impact of forward voltage reduction from 2.95V to 2.75V?

A: Lower forward voltage (2.75V in LM561C) reduces power dissipation in series-limiting resistor circuits. At 65mA test current, power consumption decreases from approximately 192mW to 179mW. This improves overall system efficiency. Circuit design must accommodate the voltage change; however, within typical LED driver specifications (2.5–3.3V range), this variation is standard and acceptable.

Q: Are 5700K and 5000K parts interchangeable?

A: No. Color temperature is application-specific. 5700K (cool white, daylight) and 5000K (cool white, neutral) produce visually distinct light output. Selection depends on end-application color rendering requirements. Both maintain identical CRI (80), flux (35lm), and electrical parameters except CCT.

Q: What does thermal resistance 12°C/W versus 16°C/W mean for my application?

A: Thermal resistance indicates junction temperature rise per watt of dissipated power. Lower thermal resistance (12°C/W) means better heat dissipation. At 65mA and 2.8V, power dissipation is approximately 182mW. With 12°C/W thermal resistance, junction temperature rise is approximately 2.2°C above ambient. With 16°C/W, rise is approximately 2.9°C. LM561C series (12°C/W) provides improved thermal performance for high-ambient or thermally constrained applications.

Q: Is RoHS3 compliance different from RoHS compliance?

A: ROHS3 is the current RoHS Directive 2011/65/EU standard. RoHS (without version designation) typically refers to earlier compliance. Both indicate restriction of hazardous substances. ROHS3-compliant parts (SPMWHT541ML5XAQKS0, SPMWHT541ML5XARKS0) meet current regulatory requirements. All parts in this comparison are RoHS-compliant.

Q: Which substitute part has the best availability?

A: SPMWHT541ML5XAQKS0 (LM561C, 5700K, Cut Tape) has the highest inventory: 155,477 pcs. This part is suitable for applications where Cut Tape packaging is acceptable and 5700K color temperature is required.