SPMWHT541MD5WAVMSD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAVMSD is a Samsung Semiconductor LM561B series warm white LED designed for lighting applications. This component operates at 3000K color temperature with a forward voltage of 2.95V and test current of 65mA, delivering 33lm 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 design continuity, inventory management, and ongoing production support for existing applications utilizing this LED.

Substiute Parts

SPMWHT541MD5WAVMSD

Samsung Semiconductor, Inc.In Stock: 5142SPMWHT541MD5WAVMSD Datasheet

Current PartRFQ

SPMWHT541MP5WAVMS5

Samsung Semiconductor, Inc.In Stock: 26909SPMWHT541MP5WAVMS5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD5WAVMSD is based on strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Series family: LM561B or LM561B Plus
• Color specification: White, Warm
• CCT: 3000K
• Forward voltage (Vf): 2.95V
• Test current: 65mA
• Viewing angle: 120°
• Package type: 4-SMD, 5630 form factor
• Mounting: Surface Mount
• Physical dimensions: 5.00mm x 3.00mm
• RoHS compliance status

Allowable Variation Parameters:

• Flux output: Range 31lm to 35lm at 25°C, 65mA
• Lumens/Watt efficiency: 172 lm/W or higher
• Maximum current rating: 150mA or higher
• Thermal resistance: 16°C/W or lower
• Height seated: 0.90mm or less
• Product status: Active preferred over Not For New Designs

The SPMWHT541MP5WAVMS5 qualifies as a direct substitute based on these criteria, with improvements in efficiency, thermal performance, and active product status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP5WAVMS5

The SPMWHT541MP5WAVMS5 is the qualified substitute for SPMWHT541MD5WAVMSD based on the following engineering criteria:

1. Product Status Alignment: The substitute carries Active product status, ensuring continued availability and manufacturing support, whereas the main part is designated Not For New Designs.

2. Electrical Compatibility: Both parts operate at identical forward voltage (2.95V) and test current (65mA), with flux output within the specified tolerance band (33-35lm at 25°C).

3. Mechanical Compatibility: Both components utilize the 5630 package form factor with identical footprint dimensions (5.00mm x 3.00mm), enabling direct PCB layout compatibility.

4. Thermal Performance: The substitute demonstrates superior thermal characteristics with 15°C/W thermal resistance compared to 16°C/W, and a lower seated height of 0.80mm versus 0.90mm, improving thermal dissipation in constrained assembly environments.

5. Efficiency Improvement: The substitute achieves 177 lm/W versus 172 lm/W, representing a 2.9% efficiency gain at identical operating conditions.

6. Compliance Status: Both parts maintain RoHS compliance with identical MSL ratings, ensuring regulatory and environmental compatibility.

7. Current Rating: The substitute supports 180mA maximum current versus 150mA, providing additional operational margin for applications requiring higher drive levels.

For applications currently using SPMWHT541MD5WAVMSD, direct substitution with SPMWHT541MP5WAVMS5 is supported without circuit modification or thermal redesign.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAVMS5 be used as a direct replacement for SPMWHT541MD5WAVMSD in existing designs?

A: Yes. Both parts share identical electrical specifications (2.95V forward voltage, 65mA test current, 3000K color temperature), mechanical footprint (5.00mm x 3.00mm, 5630 package), and mounting type (Surface Mount). No circuit changes are required.

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

A: Both designations refer to the 4-SMD 5630 package configuration. The primary difference is in thermal pad design. The substitute's flat leads configuration provides equivalent thermal performance (15°C/W vs. 16°C/W) with improved height profile (0.80mm vs. 0.90mm).

Q: Why is the main part marked "Not For New Designs"?

A: This designation indicates the SPMWHT541MD5WAVMSD has reached end-of-life in Samsung's product roadmap. The LM561B Plus series (SPMWHT541MP5WAVMS5) represents the current generation with extended availability and active manufacturing support.

Q: Are there any flux output differences between these parts?

A: Both parts operate within the same flux specification range (31-35lm at 25°C, 65mA). The substitute typically delivers 34lm versus 33lm for the main part, representing normal manufacturing variation within tolerance.

Q: What is the significance of the higher maximum current rating (180mA vs. 150mA) on the substitute?

A: The substitute's 180mA maximum rating provides additional operational headroom. At the standard 65mA test current, both parts operate identically. The higher rating allows the substitute to support applications requiring increased drive current without thermal or reliability concerns.

Q: Are both parts RoHS compliant?

A: Yes. The main part carries RoHS Compliant status, while the substitute carries ROHS3 Compliant status. Both meet environmental and regulatory requirements for lead-free manufacturing.

Q: What is MSL 2A (4 Weeks) and does it affect substitution?

A: MSL (Moisture Sensitivity Level) 2A indicates the component can be stored in dry conditions for up to 4 weeks before reflow soldering. Both parts share identical MSL ratings, so no changes to handling or storage procedures are required during substitution.

Q: Can the substitute be used in applications with height constraints?

A: Yes. The substitute's seated height of 0.80mm is lower than the main part's 0.90mm, making it suitable for space-constrained assemblies. This represents an improvement for applications with tight vertical clearance requirements.

Q: Is the CRI (Color Rendering Index) identical between both parts?

A: Yes. Both parts maintain CRI 80, ensuring identical color rendering characteristics for warm white 3000K lighting applications.