SPMWHT541MD5WAUHSC LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAUHSC is a Samsung Semiconductor LM561B series warm white LED designed for surface mount lighting applications. This component operates at 3500K color temperature with a forward voltage of 2.95V and test current of 65mA, delivering 31 lumens at 25°C. The part is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. Identification of equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design transitions to active product lines.

Substiute Parts

SPMWHT541MD5WAUHSC

Samsung Semiconductor, Inc.In Stock: 1033SPMWHT541MD5WAUHSC Datasheet

Current PartRFQ

SPMWHT541MP5WAU0S4

Samsung Semiconductor, Inc.In Stock: 1071SPMWHT541MP5WAU0S4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAUHSC is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Series family: LM561B or LM561B Plus
• Color specification: White, Warm
• Correlated Color Temperature (CCT): 3500K
• Forward voltage (Vf): 2.95V (nominal)
• Test current: 65mA
• Viewing angle: 120°
• Package type: 4-SMD surface mount, 5630 form factor
• Mounting footprint: 5.00mm x 3.00mm
• RoHS compliance: Required

Secondary Compatibility Parameters:

• CRI (Color Rendering Index): 80 or higher
• Maximum current rating: Equal to or greater than 150mA
• Thermal resistance: Equal to or lower than 16°C/W
• Moisture sensitivity level: 2A or better
• Height seated: Compatible with 0.90mm or lower

The SPMWHT541MP5WAU0S4 qualifies as a direct substitute based on matching all primary criteria and demonstrating improved performance in secondary parameters.

Parameter Comparison

Engineering Selection Recommendations

For Existing Production Support: The SPMWHT541MD5WAUHSC remains available with 953 units in stock. Continued use is permissible for maintenance and repair of existing assemblies where component-level replacement is required.

For New Designs and Long-Term Supply: The SPMWHT541MP5WAU0S4 is the recommended substitute. This part carries Active product status, ensuring long-term availability and supply chain stability. The LM561B Plus variant demonstrates improved performance metrics across efficiency (167 lm/W vs. 162 lm/W), maximum current rating (180mA vs. 150mA), thermal characteristics (15°C/W vs. 16°C/W), and physical profile (0.80mm vs. 0.90mm height). All electrical parameters at nominal operating conditions remain identical, ensuring direct functional equivalence in circuit applications.

Compliance Verification: Both parts maintain RoHS compliance and identical moisture sensitivity classifications, satisfying regulatory and environmental requirements for industrial and consumer lighting applications.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAU0S4 be used as a direct replacement for SPMWHT541MD5WAUHSC in existing PCB assemblies?

A: Yes. Both parts share identical footprint dimensions (5.00mm x 3.00mm), forward voltage (2.95V), test current (65mA), and viewing angle (120°). The substitute part's lower seated height (0.80mm vs. 0.90mm) and improved thermal resistance present no compatibility issues. PCB layout and solder reflow profiles require no modification.

Q: What is the difference between "Flat Lead Exposed Pad" and "Flat Leads" package designations?

A: Both designations refer to 4-SMD surface mount packages with identical external dimensions and electrical connectivity. The terminology variation reflects Samsung's internal package classification updates. Functional performance and PCB assembly compatibility remain unchanged.

Q: Are there performance differences in luminous output between these parts?

A: At the specified test current of 65mA, the SPMWHT541MP5WAU0S4 delivers 32 lumens (31–33lm range) compared to 31 lumens (29–33lm range) for the SPMWHT541MD5WAUHSC. Both values fall within acceptable tolerance for warm white 3500K LED applications. The substitute part demonstrates higher efficiency at 167 lm/W versus 162 lm/W.

Q: What is the significance of "Not For New Designs" status?

A: This designation indicates the SPMWHT541MD5WAUHSC has reached end-of-life in Samsung's active product portfolio. While current inventory is available, long-term supply cannot be guaranteed. New product development should transition to the SPMWHT541MP5WAU0S4 (Active status) to ensure component availability throughout the product lifecycle.

Q: Do thermal management considerations differ between these parts?

A: The SPMWHT541MP5WAU0S4 exhibits superior thermal performance with 15°C/W junction-to-ambient resistance compared to 16°C/W for the main part. This 1°C/W improvement reduces thermal stress in high-density LED array applications. Both parts operate within standard thermal management practices for 5630 form factor LEDs.

Q: Are moisture sensitivity and storage requirements identical?

A: Yes. Both parts carry MSL 2A (4 Weeks) classification, requiring identical moisture control protocols during storage and handling. Standard dry-pack storage with desiccant and humidity indicators applies to both components.