SPMWHT541MD5WATHS2 Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WATHS2 is a Samsung Semiconductor LM561B series LED lighting component featuring neutral white 4000K color temperature in a 5630 surface mount package. This part is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. Organizations currently using this component in active production or maintenance applications require qualified substitute parts that maintain electrical and mechanical compatibility while offering active product status and continued supply availability.

Substiute Parts

SPMWHT541MD5WATHS2

Samsung Semiconductor, Inc.In Stock: 820SPMWHT541MD5WATHS2 Datasheet

Current PartRFQ

SPMWHT541MP5WATMS4

Samsung Semiconductor, Inc.In Stock: 600211SPMWHT541MP5WATMS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD5WATHS2 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Series family: LM561B (including LM561B Plus variants)
• Color specification: White, Neutral
• CCT: 4000K
• Package type: 5630 surface mount (4-SMD configuration)
• Physical dimensions: 5.00mm x 3.00mm footprint
• Mounting type: Surface Mount

Allowable Variation Parameters:

• Forward voltage (Vf): 2.9V to 2.95V (within typical operating range)
• Maximum current rating: 150mA to 180mA (higher ratings provide design margin)
• Height: 0.90mm to 0.80mm (both within PCB assembly tolerance)
• Thermal resistance: 16°C/W (identical across variants)

The SPMWHT541MP5WATMS4 qualifies as a direct substitute based on matching all mandatory parameters while offering improved specifications in active product status, higher maximum current capability, and enhanced performance metrics.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SPMWHT541MP5WATMS4

The SPMWHT541MP5WATMS4 is the qualified substitute for SPMWHT541MD5WATHS2 based on the following engineering criteria:

Product Status Alignment: The substitute part carries Active product status, ensuring continued manufacturing support, supply chain availability, and long-term component sourcing stability. The main part's "Not For New Designs" classification indicates Samsung has transitioned this component to end-of-life management.

Electrical Compatibility: Forward voltage differential of 0.05V (2.9V to 2.95V) falls within standard LED operating tolerance and requires no circuit redesign. Test current remains constant at 65mA. Maximum current rating increases from 150mA to 180mA, providing additional design margin without affecting nominal operation.

Mechanical Compatibility: Both parts share identical 5.00mm x 3.00mm footprints and 5630 package designation. Height reduction from 0.90mm to 0.80mm is compatible with standard PCB assembly processes and does not create clearance conflicts in typical LED lighting applications.

Compliance Status: Both parts maintain RoHS compliance. The substitute achieves ROHS3 certification, representing the current regulatory standard. Moisture sensitivity level remains unchanged at 2A (4 Weeks), requiring identical handling and storage protocols.

Thermal Characteristics: Thermal resistance of 16°C/W is identical, ensuring equivalent thermal performance in circuit designs.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WATMS4 be used as a direct drop-in replacement for SPMWHT541MD5WATHS2?

A: Yes. Both parts share identical 5.00mm x 3.00mm footprints, 5630 package configuration, and 4-SMD surface mount design. PCB layout and assembly processes require no modification. The 0.10mm height difference (0.90mm to 0.80mm) is within standard PCB assembly tolerance and does not affect component placement or solder reflow profiles.

Q: What is the impact of the 0.05V forward voltage difference?

A: The forward voltage increase from 2.9V to 2.95V is negligible in typical LED circuit applications. Standard current-limiting resistor designs accommodate this variation. No circuit redesign is required for applications operating within the specified 65mA test current.

Q: Does the higher maximum current rating (180mA vs 150mA) affect circuit operation?

A: No. The substitute part's higher maximum current rating provides additional design margin and does not alter nominal operation at the specified 65mA test current. Existing circuit designs operate identically with both parts.

Q: Are the package lead configurations compatible?

A: Yes. The main part features "Flat Lead Exposed Pad" configuration while the substitute features "Flat Leads." Both are 4-SMD 5630 packages with identical footprints and solder pad layouts. No PCB redesign is required.

Q: What is the significance of the substitute part's additional specifications (CRI, viewing angle, lumens/watt)?

A: The substitute part provides documented CRI (80), viewing angle (120°), and luminous efficacy (172 lm/W) specifications. These represent enhanced product documentation rather than design changes. The main part does not specify these parameters, but both parts maintain identical color temperature (4000K) and neutral white color classification.

Q: Are storage and handling requirements identical?

A: Yes. Both parts carry identical Moisture Sensitivity Level (MSL) rating of 2A (4 Weeks), requiring identical dry storage conditions, bake-out procedures, and shelf-life management protocols.

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

A: This classification indicates Samsung has transitioned the SPMWHT541MD5WATHS2 to end-of-life status. The LM561B Plus series (SPMWHT541MP5WATMS4) represents the active product line continuation. Organizations should transition to the substitute part for new designs and ongoing production to ensure long-term supply availability.

Q: Is RoHS compliance maintained with the substitute part?

A: Yes. Both parts are RoHS compliant. The substitute achieves ROHS3 certification, which is the current regulatory standard and represents enhanced compliance documentation.