SPMWHT541MD5WAU0SC LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAU0SC is a Samsung Semiconductor LM561B series warm white LED designed for surface mount 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. Organizations requiring this LED for new production or replacement inventory must evaluate qualified substitute components that maintain electrical and mechanical compatibility within the LM561B product family.

Substiute Parts

SPMWHT541MD5WAU0SC

Samsung Semiconductor, Inc.In Stock: 977SPMWHT541MD5WAU0SC Datasheet

Current PartRFQ

SPMWHT541MP5WAU0S4

Samsung Semiconductor, Inc.In Stock: 1071SPMWHT541MP5WAU0S4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAU0SC is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Criteria:

• Series family: LM561B or LM561B Plus
• Color and CCT: White, Warm 3500K
• Forward voltage (Vf): 2.95V nominal
• Test current: 65mA
• Viewing angle: 120°
• Package type: 4-SMD surface mount
• Supplier device package: 5630
• Physical dimensions: 5.00mm × 3.00mm
• CRI: 80 minimum
• RoHS compliance: Required
• MSL rating: 2A or better

The SPMWHT541MP5WAU0S4 qualifies as a direct substitute because it maintains all critical electrical parameters (Vf, test current, CCT, CRI, viewing angle) and mechanical specifications (package, dimensions, MSL). The substitute operates within the same thermal and optical performance envelope, with improved maximum current rating (180mA vs. 150mA) and enhanced thermal characteristics (15°C/W vs. 16°C/W). The primary distinction is product status: the substitute is Active, whereas the main part is Not For New Designs.

Parameter Comparison

Engineering Selection Recommendations

For New Production: The SPMWHT541MP5WAU0S4 is the appropriate selection for new designs. This component carries Active product status and is fully qualified within the LM561B Plus series. It maintains electrical compatibility with the original part while offering improved thermal performance and higher maximum current rating.

For Replacement or Retrofit: The SPMWHT541MP5WAU0S4 provides direct functional equivalence for existing applications using the SPMWHT541MD5WAU0SC. The marginal improvements in luminous flux (32 lm vs. 31 lm) and efficiency (167 lm/W vs. 162 lm/W) are within normal manufacturing tolerance ranges and do not require circuit redesign. The reduced seated height (0.80mm vs. 0.90mm) and improved thermal resistance (15°C/W vs. 16°C/W) represent performance enhancements.

Compliance Considerations: Both components are RoHS Compliant and carry identical MSL ratings (2A, 4 Weeks). No additional handling or storage protocol changes are required when transitioning from the main part to the substitute.

Frequently Asked Questions (FAQ)

Q: Can the SPMWHT541MP5WAU0S4 be used as a direct replacement in existing PCB assemblies designed for SPMWHT541MD5WAU0SC?

A: Yes. Both components share identical electrical specifications (2.95V forward voltage, 65mA test current, 3500K CCT, 80 CRI, 120° viewing angle) and mechanical footprints (5630 package, 5.00mm × 3.00mm dimensions). The substitute has a lower seated height (0.80mm vs. 0.90mm), which is compatible with standard PCB assembly processes.

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

A: Both designations refer to 4-SMD surface mount configurations with 5630 package geometry. The functional and electrical performance is equivalent for the specified application parameters.

Q: Why is the SPMWHT541MD5WAU0SC marked "Not For New Designs"?

A: This status indicates the component has reached end-of-life in Samsung's product portfolio. New designs should utilize the SPMWHT541MP5WAU0S4 (LM561B Plus series), which is actively manufactured and supported.

Q: Are there any thermal management differences between these parts?

A: The SPMWHT541MP5WAU0S4 has improved thermal resistance (15°C/W vs. 16°C/W), resulting in lower junction temperatures under identical operating conditions. This represents a performance advantage with no negative implications for existing thermal designs.

Q: Do both parts require identical moisture handling procedures?

A: Yes. Both components carry MSL 2A rating (4 Weeks), requiring identical storage and handling protocols per IPC-A-610 standards.