SPMWHT541MD5WAQMS1 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAQMS1 is a Samsung Semiconductor LM561B series cool white LED (5700K) in 5630 surface mount package format. This component is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. The LED operates at 2.9V forward voltage with a 65mA test current and is housed in a 4-SMD flat lead exposed pad configuration measuring 5.00mm × 3.00mm.

Due to its discontinued design status, identifying functionally equivalent substitute components is essential for ongoing production support, maintenance applications, and legacy system repairs where this specific LED type is required.

Substiute Parts

SPMWHT541MD5WAQMS1

Samsung Semiconductor, Inc.In Stock: 722SPMWHT541MD5WAQMS1 Datasheet

Current PartRFQ

SPMWHT541MP5WAQKS4

Samsung Semiconductor, Inc.In Stock: 16206SPMWHT541MP5WAQKS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAQMS1 is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Series family: LM561B or LM561B Plus (same base product number SPMWHT541)
• Color specification: White, Cool
• CCT rating: 5700K
• Package type: 4-SMD, 5630 form factor
• Physical dimensions: 5.00mm × 3.00mm footprint
• Mounting method: Surface Mount

Secondary Compatibility Parameters:

• Forward voltage (Vf): Range 2.9V to 2.95V
• Test current: 65mA nominal
• Maximum current rating: ≥150mA
• Thermal resistance: ≤16°C/W
• MSL rating: 2A or better
• RoHS compliance status

The SPMWHT541MP5WAQKS4 qualifies as a direct substitute based on matching all primary criteria and maintaining compatibility within secondary parameter tolerances. This substitute represents an evolution within the same product family (LM561B Plus variant) with improved performance characteristics while maintaining identical mechanical and electrical interfaces.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement Applications:

The SPMWHT541MP5WAQKS4 is the qualified substitute for SPMWHT541MD5WAQMS1 in applications requiring cool white 5700K LED lighting in 5630 surface mount format. This substitution is supported by:

1. Product Status Alignment: The substitute is in Active production status, ensuring long-term availability and supply chain continuity, whereas the main part is designated "Not For New Designs."

2. Compliance Enhancement: The substitute meets ROHS3 compliance, representing a higher environmental standard than the RoHS Compliant rating of the main part.

3. Mechanical Compatibility: Identical footprint (5.00mm × 3.00mm) and package type (4-SMD, 5630) ensure direct PCB layout compatibility without redesign.

4. Electrical Compatibility: Forward voltage differential of 0.05V (2.9V vs. 2.95V) falls within standard circuit tolerance ranges for LED driver circuits. Maximum current rating increase (150mA to 180mA) provides additional operational margin.

5. Thermal Performance: Improved thermal resistance (15°C/W vs. 16°C/W) provides enhanced heat dissipation characteristics.

6. Moisture Sensitivity: Both parts share identical MSL 2A rating (4 weeks), maintaining equivalent handling and storage requirements.

Inventory and Availability Consideration:

The substitute part (SPMWHT541MP5WAQKS4) maintains significantly higher inventory levels (16,110 pcs vs. 687 pcs), supporting sustained production requirements and reducing supply risk.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAQKS4 be used as a direct drop-in replacement for SPMWHT541MD5WAQMS1?

A: Yes. Both components share identical 5630 package footprints, 5.00mm × 3.00mm dimensions, and 4-SMD surface mount configuration. PCB layout modifications are not required. The forward voltage difference of 0.05V is within standard LED circuit tolerance and does not necessitate driver circuit redesign.

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

A: This designation indicates the SPMWHT541MD5WAQMS1 has reached end-of-life in Samsung's product roadmap. New production runs should utilize the SPMWHT541MP5WAQKS4 (Active status) to ensure long-term component availability and supply chain stability.

Q: Are there differences in the lead configuration between these parts?

A: The main part specifies "Flat Lead Exposed Pad" while the substitute specifies "Flat Leads." Both configurations are mechanically compatible with standard 5630 package footprints. The exposed pad in the main part provides enhanced thermal performance, while the substitute achieves superior thermal resistance (15°C/W vs. 16°C/W) through improved die design.

Q: How do the electrical ratings compare?

A: Test current is identical at 65mA. Forward voltage is 2.9V (main) vs. 2.95V (substitute), a 1.7% difference within typical LED circuit tolerances. Maximum current rating increases from 150mA to 180mA in the substitute, providing additional operational headroom without affecting standard 65mA operation.

Q: What is the impact of the higher CRI and lumens/watt specification in the substitute?

A: The substitute provides documented CRI of 80 and 177 lm/W efficiency, whereas the main part does not specify these parameters. These values indicate improved color rendering and luminous efficiency in the LM561B Plus variant, representing a performance enhancement over the original LM561B series.

Q: Are moisture sensitivity and handling requirements identical?

A: Yes. Both parts carry MSL 2A rating with 4-week moisture sensitivity windows. Storage, handling, and reflow procedures remain unchanged between the two components.

Q: Does the lower profile height of the substitute (0.80mm vs. 0.90mm) affect compatibility?

A: No. The lower seated height of the substitute is a mechanical advantage, providing additional clearance in space-constrained applications. This does not impact electrical performance or PCB assembly compatibility.