SPMWHT541MD7WAV0S0 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD7WAV0S0 is a Samsung Semiconductor LM561B series warm white LED (3000K) designed for surface mount applications in lighting systems. This component operates at 2.95V forward voltage with a 65mA test current, delivering 24 lumens at 25°C with a 120° viewing angle. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The LM561B series provides a standardized platform for warm white LED lighting with consistent color rendering (CRI 90) across multiple product variants.

Substiute Parts

SPMWHT541MD7WAV0S0

Samsung Semiconductor, Inc.In Stock: 728SPMWHT541MD7WAV0S0 Datasheet

Current PartRFQ

SPMWHT541MP7WAV0S0

Samsung Semiconductor, Inc.In Stock: 1153SPMWHT541MP7WAV0S0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD7WAV0S0 is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Color and correlated color temperature (CCT): White, Warm 3000K
• Forward voltage (Vf): 2.95V nominal
• Test current: 65mA
• Color Rendering Index (CRI): 90
• Viewing angle: 120°
• Package type: 4-SMD surface mount, 5630 form factor
• Dimensions: 5.00mm × 3.00mm footprint
• RoHS compliance and MSL rating: 2A (4 Weeks)

The SPMWHT541MP7WAV0S0 qualifies as a direct substitute based on identical electrical performance at the specified test current, matching color specifications, and compatible surface mount packaging. Differences in maximum current rating, luminous flux output, and thermal characteristics do not preclude substitution when the component operates within the specified 65mA test current condition.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SPMWHT541MP7WAV0S0

The SPMWHT541MP7WAV0S0 is the direct substitute for the obsolete SPMWHT541MD7WAV0S0. Selection is based on the following engineering factors:

1. Product Status: The substitute part is classified as Active, ensuring continued availability and supply chain stability compared to the obsolete main part.

2. Electrical Compatibility: Both parts operate identically at the specified 65mA test current with 2.95V forward voltage. The substitute's higher maximum current rating (180mA vs. 150mA) and improved luminous flux output (26 lm vs. 24 lm) provide enhanced performance margins without affecting operation at the standard test condition.

3. Compliance and Certification: Both parts maintain identical RoHS compliance and MSL 2A (4 Weeks) ratings, ensuring compatibility with standard manufacturing and storage protocols.

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

5. Mechanical Compatibility: The 5630 package footprint and 4-SMD surface mount configuration are identical. The 0.10mm reduction in seated height (0.80mm vs. 0.90mm) is within standard PCB assembly tolerances and does not affect board-level compatibility.

6. Color and Optical Properties: Identical color temperature (3000K), CRI (90), and viewing angle (120°) ensure no change in lighting performance or color rendering characteristics.

Frequently Asked Questions (FAQ)

Q: Can the SPMWHT541MP7WAV0S0 be used as a direct replacement for the SPMWHT541MD7WAV0S0 in existing designs?

A: Yes. Both parts share identical electrical specifications at the 65mA test current (2.95V forward voltage), color properties (3000K, CRI 90), and surface mount package footprint (5630, 4-SMD). The substitute is mechanically and electrically compatible with existing PCB layouts and circuit designs.

Q: What is the difference between the LM561B and LM561B Plus series?

A: The LM561B Plus variant (SPMWHT541MP7WAV0S0) provides improved luminous flux output (26 lm vs. 24 lm at 65mA) and higher efficiency (136 lm/W vs. 125 lm/W). Both series maintain identical forward voltage, color temperature, and CRI specifications. The Plus variant also supports higher maximum current (180mA vs. 150mA).

Q: Are there any height or dimensional concerns when substituting these parts?

A: The substitute part is 0.10mm shorter in seated height (0.80mm vs. 0.90mm). This difference is within standard PCB assembly tolerances and does not affect board-level clearances or component placement. Both parts use the identical 5.00mm × 3.00mm footprint.

Q: Do both parts have the same thermal characteristics?

A: The substitute part exhibits slightly better thermal performance with a thermal resistance of 15°C/W compared to 16°C/W for the main part. This results in lower junction temperatures under identical operating conditions, improving reliability and lifespan.

Q: What is the packaging difference between these parts?

A: The main part (SPMWHT541MD7WAV0S0) features a flat lead with exposed pad configuration. The substitute (SPMWHT541MP7WAV0S0) uses flat leads without the exposed pad designation. Both are 4-SMD surface mount packages in the 5630 form factor with identical electrical and mechanical compatibility.

Q: Are moisture sensitivity and RoHS compliance identical?

A: Yes. Both parts maintain MSL 2A (4 Weeks) moisture sensitivity rating and full RoHS compliance. Storage and handling requirements are identical.

Q: Why is the main part classified as obsolete?

A: The SPMWHT541MD7WAV0S0 has been superseded by the improved LM561B Plus variant. The substitute part offers better efficiency and luminous output while maintaining backward compatibility with existing designs.