SPMWHT541MK7XAVSS0 Equivalent & Substitute Parts

Part Overview

The SPMWHT541MK7XAVSS0 is a Samsung Semiconductor LM561C series warm white LED designed for general lighting applications. This component operates at 3000K color temperature with a typical forward voltage of 2.75V and test current of 65mA, delivering 30 lumens at 25°C. The part is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for ongoing production requirements.

Substiute Parts

SPMWHT541MK7XAVSS0

Samsung Semiconductor, Inc.In Stock: 918SPMWHT541MK7XAVSS0 Datasheet

Current PartRFQ

SPMWHT541ML7XAVSS0

Samsung Semiconductor, Inc.In Stock: 1189SPMWHT541ML7XAVSS0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MK7XAVSS0 is determined by the following critical parameters:

• Series Compatibility: Both parts must belong to the LM561C series
• Color and CCT: Warm white at 3000K is mandatory
• Electrical Performance: Forward voltage (2.75V typical), test current (65mA), and maximum current (200mA) must remain constant
• Optical Characteristics: Viewing angle (120°) and CRI (90) must be maintained
• Thermal Properties: Thermal resistance of 12°C/W must be preserved
• Compliance: RoHS and REACH status must meet or exceed the original specification

The SPMWHT541ML7XAVSS0 qualifies as a direct substitute based on these parameters. Both components share identical electrical, optical, and thermal characteristics within the LM561C product line.

Parameter Comparison

Engineering Selection Recommendations

The SPMWHT541ML7XAVSS0 is the manufacturer-recommended substitute for the SPMWHT541MK7XAVSS0. Selection should be based on the following factors:

Product Status: The original part is Last Time Buy, while the substitute is Active. This ensures continued availability and supply chain stability for future production runs.

Compliance: Both parts meet RoHS requirements. The substitute carries RoHS Compliant status, satisfying environmental and regulatory obligations. REACH status remains unaffected for both components.

Electrical Equivalence: Forward voltage, test current, and maximum current ratings are identical. Circuit designs require no modification for voltage or current parameters.

Optical Performance: Color temperature (3000K), CRI (90), and viewing angle (120°) are preserved. Luminous flux at test conditions shows a minor variance (28 lm vs. 30 lm), falling within acceptable tolerance ranges for warm white lighting applications.

Thermal Characteristics: Thermal resistance remains constant at 12°C/W, ensuring equivalent thermal management performance in PCB layouts.

Physical Considerations: Package format differs between the two parts (2212 vs. 4-SMD, Flat Leads). PCB footprint and reflow profile compatibility must be verified during design transition. The substitute is 0.3mm shorter in length and 0.1mm lower in seated height, which may require minor PCB layout adjustments but generally presents no functional impediment.

Frequently Asked Questions (FAQ)

Q: Can the SPMWHT541ML7XAVSS0 be used as a direct drop-in replacement?

A: Electrical and optical parameters are fully compatible. However, the package format differs (2212 vs. 4-SMD, Flat Leads), requiring PCB footprint verification. Physical dimensions show minor variations (length 5.00mm vs. 5.30mm, height 0.80mm vs. 0.90mm). Reflow profile compatibility must be confirmed before production implementation.

Q: What is the difference in luminous flux between the two parts?

A: The original part delivers 30 lm at 25°C and 65mA test current (range 28–32 lm). The substitute delivers 28 lm under identical conditions (range 25–31 lm). Both values fall within acceptable tolerance for warm white LED applications. The substitute exhibits slightly lower lumens-per-watt efficiency (157 lm/W vs. 168 lm/W).

Q: Are there compliance or certification differences?

A: Both parts are RoHS compliant and REACH unaffected. The original carries ROHS3 Compliant designation, while the substitute carries RoHS Compliant status. Both meet current environmental regulations. ECCN and HTSUS classifications are identical.

Q: Why is the original part marked Last Time Buy?

A: Last Time Buy status indicates Samsung Semiconductor has discontinued production of the SPMWHT541MK7XAVSS0. The SPMWHT541ML7XAVSS0 remains in active production, ensuring long-term supply availability for new designs and production continuity.

Q: Are there thermal management differences?

A: Thermal resistance is identical at 12°C/W for both parts. PCB thermal design calculations and heat dissipation strategies remain unchanged. The substitute's lower seated height (0.80mm vs. 0.90mm) may provide marginal improvements in thermal coupling to PCB copper planes, depending on layout configuration.

Q: What inventory status should influence purchasing decisions?

A: The original part has 835 units in stock (Last Time Buy status). The substitute has 1134 units in stock with Active product status. For new designs or production continuity, the substitute is the preferred selection due to ongoing availability and manufacturer support.