SPMWHT541MP5WAPMSD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAPMSD is a Samsung Semiconductor LM561B Plus white LED in 5630 package format, specified for cool white 6500K color temperature applications. This component operates at 2.95V forward voltage with 65mA test current, delivering 34lm at 25°C and 177 lm/W efficiency. The part is classified as Not For New Designs, indicating end-of-life status. This obsolescence necessitates identification of equivalent substitute components that maintain electrical and mechanical compatibility while offering active product status for ongoing production requirements.

Substiute Parts

SPMWHT541MP5WAPMSD

Samsung Semiconductor, Inc.In Stock: 981SPMWHT541MP5WAPMSD Datasheet

Current PartRFQ

SPMWHT541MP5WAP0S5

Samsung Semiconductor, Inc.In Stock: 1237SPMWHT541MP5WAP0S5 Datasheet

SimilarRFQ

SPMWHT541ML5XAPKS0

Samsung Semiconductor, Inc.In Stock: 813SPMWHT541ML5XAPKS0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MP5WAPMSD is determined by strict alignment of the following critical parameters:

Mandatory Compatibility Parameters:

• Color Temperature (CCT): 6500K (cool white)
• Color Designation: White, Cool
• CRI (Color Rendering Index): 80
• Package Type: 4-SMD, Flat Leads
• Supplier Device Package: 5630
• Physical Dimensions: 5.00mm L x 3.00mm W
• Maximum Height: 0.80mm
• Mounting Type: Surface Mount
• Current - Test: 65mA
• Current - Maximum: 180mA
• Viewing Angle: 120°

Allowable Variation Parameters:

• Voltage - Forward (Vf): ±0.15V tolerance acceptable within design margin
• Flux @ 25°C: ±2lm variation acceptable
• Lumens/Watt: ±10 lm/W variation acceptable
• Thermal Resistance: ±4°C/W variation acceptable
• Product Status: Active status preferred over Not For New Designs

Two substitute parts meet these criteria: SPMWHT541MP5WAP0S5 (Similar Manufacturer Part, Active status) and SPMWHT541ML5XAPKS0 (Parametric Equivalent, LM561C series, Active status).

Parameter Comparison

Engineering Selection Recommendations

SPMWHT541MP5WAP0S5 (Substitute 1 - Recommended for Direct Replacement)

This part is the optimal substitute for SPMWHT541MP5WAPMSD. It maintains identical electrical specifications (2.95V Vf, 65mA test current, 34lm flux range) and mechanical compatibility (5630 package, 5.00 x 3.00mm, 0.80mm height). The primary advantage is Active product status, eliminating obsolescence risk. Flux output is marginally higher at 35lm nominal (within 32-36lm specification band), and efficiency improves to 183 lm/W. Thermal resistance is 1°C/W lower (15°C/W vs. 16°C/W), providing improved heat dissipation. RoHS compliance is maintained. This part is suitable for direct PCB assembly substitution without design modification.

SPMWHT541ML5XAPKS0 (Substitute 2 - Parametric Equivalent)

This part represents a parametric equivalent from the LM561C series. It maintains all critical mechanical parameters (5630 package, 5.00 x 3.00mm, 0.80mm height, 120° viewing angle) and electrical compatibility (65mA test current, 180mA maximum, 6500K CCT, 80 CRI). Forward voltage is reduced to 2.8V (0.15V lower than main part), which falls within acceptable design margin for most applications. Flux output remains at 34lm nominal, matching the main part specification. Efficiency is superior at 187 lm/W. Thermal resistance is significantly improved at 12°C/W. ROHS3 compliance exceeds RoHS requirements. This part is suitable for applications where lower forward voltage provides circuit design benefits.

Selection Criteria:

• For direct replacement with identical electrical characteristics: Select SPMWHT541MP5WAP0S5
• For improved thermal performance and lower forward voltage: Select SPMWHT541ML5XAPKS0
• Both parts are Active status and eliminate obsolescence concerns
• All three parts share identical package, dimensions, and mounting compatibility

Frequently Asked Questions (FAQ)

Q1: Can SPMWHT541MP5WAP0S5 be used as a direct drop-in replacement for SPMWHT541MP5WAPMSD?

A: Yes. SPMWHT541MP5WAP0S5 is electrically and mechanically identical to SPMWHT541MP5WAPMSD. Both operate at 2.95V forward voltage, 65mA test current, and deliver 34lm flux in the 5630 package format. No circuit modification is required. The primary difference is product status: SPMWHT541MP5WAP0S5 is Active, while SPMWHT541MP5WAPMSD is Not For New Designs.

Q2: What is the difference between SPMWHT541MP5WAP0S5 and SPMWHT541ML5XAPKS0?

A: Both are suitable substitutes but differ in series designation and forward voltage. SPMWHT541MP5WAP0S5 is LM561B Plus series with 2.95V Vf, matching the original part exactly. SPMWHT541ML5XAPKS0 is LM561C series with 2.8V Vf, 0.15V lower. Both deliver 34lm flux and maintain 6500K color temperature. The LM561C variant offers improved thermal resistance (12°C/W vs. 16°C/W) and higher efficiency (187 lm/W vs. 177 lm/W).

Q3: Are there any compatibility concerns with the 5630 package across all three parts?

A: No. All three parts use identical 5630 package format with 4-SMD flat leads, 5.00 x 3.00mm dimensions, and 0.80mm maximum seated height. PCB footprints, reflow profiles, and assembly processes are fully compatible.

Q4: Does forward voltage difference between SPMWHT541MP5WAP0S5 (2.95V) and SPMWHT541ML5XAPKS0 (2.8V) affect circuit design?

A: The 0.15V difference is within typical design margin for LED driver circuits. If the original design uses a constant-current driver (recommended for LED applications), voltage variation is automatically compensated. If a series resistor is used, recalculation may be beneficial but is not mandatory for most applications. Verify driver specifications for voltage headroom requirements.

Q5: What is the significance of ROHS3 compliance on SPMWHT541ML5XAPKS0 versus RoHS compliance on the other parts?

A: ROHS3 represents compliance with the latest RoHS Directive 2011/65/EU as amended. RoHS Compliant indicates compliance with the original RoHS Directive. ROHS3 is a superset of RoHS requirements and indicates higher environmental compliance standards. Both certifications are acceptable for most applications; ROHS3 is preferred for new designs targeting stringent environmental regulations.

Q6: Can I mix SPMWHT541MP5WAP0S5 and SPMWHT541ML5XAPKS0 in the same assembly?

A: Mixing is not recommended for applications requiring uniform color temperature or brightness across multiple LEDs. While both parts are specified at 6500K and 34lm nominal, the LM561C variant (SPMWHT541ML5XAPKS0) has slightly different forward voltage and thermal characteristics. For consistent optical performance, use a single part number across the assembly.

Q7: What inventory considerations should guide part selection?

A: SPMWHT541MP5WAP0S5 has 1161 pieces in stock, SPMWHT541ML5XAPKS0 has 752 pieces, and SPMWHT541MP5WAPMSD (obsolete status) has 957 pieces. For new production, prioritize SPMWHT541MP5WAP0S5 due to higher inventory availability and identical electrical specifications to the original part.

Q8: Are thermal resistance differences significant for application performance?

A: Thermal resistance differences (16°C/W for main part, 15°C/W for Substitute 1, 12°C/W for Substitute 2) affect junction temperature rise under load. Lower thermal resistance improves heat dissipation and extends LED lifespan. SPMWHT541ML5XAPKS0 provides 4°C/W improvement, beneficial for high-current or thermally constrained applications. For standard applications, all three parts are acceptable.