SPMWHT541MD5WAQ0SC LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAQ0SC is a Samsung Semiconductor LM561B series cool white LED (5700K) designed for surface mount lighting applications. This component operates at 2.95V forward voltage with a test current of 65mA, delivering 33 lumens at 172 lm/W efficiency. The part is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this LED specification remains functionally required.

Substiute Parts

SPMWHT541MD5WAQ0SC

Samsung Semiconductor, Inc.In Stock: 1020SPMWHT541MD5WAQ0SC Datasheet

Current PartRFQ

SPMWHT541MP5WAQKS4

Samsung Semiconductor, Inc.In Stock: 16206SPMWHT541MP5WAQKS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAQ0SC is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Series family: LM561B or LM561B Plus
• Color specification: White, Cool
• Correlated Color Temperature (CCT): 5700K
• Forward voltage (Vf): 2.95V (nominal)
• Test current: 65mA
• Viewing angle: 120°
• Package type: 4-SMD surface mount, 5630 form factor
• Mechanical dimensions: 5.00mm × 3.00mm footprint
• Thermal resistance: ≤16°C/W

Compatibility Constraints:

• Maximum current rating must be ≥150mA to accommodate circuit design margins
• CRI must be ≥80 to maintain color rendering consistency
• Moisture sensitivity level must be 2A or better
• RoHS compliance status must be maintained

The SPMWHT541MP5WAQKS4 meets all substitution criteria. It belongs to the LM561B Plus product line (an enhanced variant within the same series), maintains identical electrical specifications at test conditions, and provides improved performance characteristics while preserving mechanical and thermal compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution:

The SPMWHT541MP5WAQKS4 is the qualified substitute for SPMWHT541MD5WAQ0SC. Selection is based on the following engineering factors:

1. Product Status Alignment: The main part is classified "Not For New Designs," indicating end-of-life status. The substitute (SPMWHT541MP5WAQKS4) carries "Active" status, ensuring continued availability and manufacturing support.

2. Electrical Equivalence: Both parts operate at identical nominal specifications (2.95V, 65mA test current, 5700K CCT, 80 CRI). The substitute demonstrates improved efficiency (177 lm/W vs. 172 lm/W) and higher maximum current rating (180mA vs. 150mA), providing additional design margin without requiring circuit modification.

3. Mechanical Compatibility: Footprint, package type (5630 4-SMD), and mounting method are identical. The substitute's reduced seated height (0.80mm vs. 0.90mm) is mechanically favorable for space-constrained applications and does not introduce compatibility issues.

4. Thermal Performance: The substitute exhibits superior thermal resistance (15°C/W vs. 16°C/W), reducing junction temperature rise under identical operating conditions.

5. Compliance Status: The substitute meets ROHS3 compliance, exceeding the main part's RoHS Compliant status. Both maintain identical moisture sensitivity levels (2A, 4 weeks).

Selection Conclusion: The SPMWHT541MP5WAQKS4 is suitable for direct substitution in all applications where SPMWHT541MD5WAQ0SC was previously specified. No circuit redesign or thermal re-analysis is required.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAQKS4 be used as a direct drop-in replacement for SPMWHT541MD5WAQ0SC?

A: Yes. Both parts share identical electrical specifications at test conditions (2.95V, 65mA, 5700K, 80 CRI) and mechanical footprints (5630 4-SMD, 5.00 × 3.00mm). No circuit modifications are necessary. The substitute is mechanically and electrically compatible with existing PCB layouts and driver circuits designed for the main part.

Q: What are the key differences between these two parts?

A: The SPMWHT541MP5WAQKS4 is an enhanced variant within the LM561B Plus product line. Differences include: (1) improved luminous efficiency (177 lm/W vs. 172 lm/W), (2) higher maximum current rating (180mA vs. 150mA), (3) superior thermal resistance (15°C/W vs. 16°C/W), (4) reduced seated height (0.80mm vs. 0.90mm), and (5) ROHS3 compliance status. The main part is end-of-life; the substitute is in active production.

Q: Are there any package or lead differences that affect assembly?

A: The main part features "Flat Lead Exposed Pad" configuration, while the substitute uses "Flat Leads." Both are 4-SMD surface mount packages with identical 5630 form factor and footprint dimensions. This difference does not affect PCB assembly, reflow soldering, or thermal performance. Standard SMT assembly processes are compatible with both variants.

Q: Will the substitute perform better in thermal applications?

A: Yes. The SPMWHT541MP5WAQKS4 exhibits lower thermal resistance (15°C/W vs. 16°C/W) and reduced seated height (0.80mm vs. 0.90mm), both of which improve heat dissipation. Under identical operating conditions and board layout, the substitute will operate at a lower junction temperature, extending component life and improving reliability margins.

Q: Is the substitute available in the same packaging format (Tape & Reel)?

A: Yes. The SPMWHT541MP5WAQKS4 is supplied in Tape & Reel (TR) packaging, identical to the main part. Reel specifications, tape pitch, and component spacing are compatible with standard SMT pick-and-place equipment.

Q: What is the inventory status of the substitute?

A: The SPMWHT541MP5WAQKS4 has 16,110 pieces in stock (new original), compared to 936 pieces of the main part. The substitute's significantly higher inventory level reflects its active production status and suitability for ongoing procurement.

Q: Are there any compliance or regulatory differences?

A: The substitute meets ROHS3 compliance, which exceeds the main part's RoHS Compliant status. Both parts carry identical moisture sensitivity levels (2A, 4 weeks) and ECCN/HTSUS classifications. No additional compliance documentation or certifications are required for substitution.