SPMWHT541MD5WATHS1 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WATHS1 is a Samsung Semiconductor LM561B series white neutral LED with a 4000K color temperature, rated for 65mA operation at 2.9V forward voltage. This component is a 4-SMD surface mount LED with flat lead exposed pad configuration in a 5630 package footprint. 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 to maintain design continuity and ensure component availability for existing applications or legacy system support.

Substiute Parts

SPMWHT541MD5WATHS1

Samsung Semiconductor, Inc.In Stock: 938SPMWHT541MD5WATHS1 Datasheet

Current PartRFQ

SPMWHT541MP5WATMS4

Samsung Semiconductor, Inc.In Stock: 600211SPMWHT541MP5WATMS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD5WATHS1 is based on strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Series family: LM561B (same base product number SPMWHT541)
• Color specification: White, Neutral
• CCT: 4000K
• Package type: 4-SMD surface mount in 5630 footprint
• Physical dimensions: 5.00mm x 3.00mm
• Thermal resistance: 16°C/W
• Mounting compatibility: Surface mount

Operational Parameters:

• Forward voltage (Vf): 2.9V nominal (acceptable tolerance range 2.95V)
• Test current: 65mA
• Maximum current rating: Must support 150mA minimum

The substitute part SPMWHT541MP5WATMS4 belongs to the LM561B Plus series variant, which maintains the same base product number (SPMWHT541) and shares all mandatory matching parameters. This part is classified as "Active" product status, making it suitable for component replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP5WATMS4

The SPMWHT541MP5WATMS4 is the direct substitute for the SPMWHT541MD5WATHS1. Selection of this substitute is based on the following engineering criteria:

Product Status Alignment: The substitute part carries "Active" product status, ensuring ongoing availability and manufacturing support from Samsung Semiconductor. The main part is classified "Not For New Designs," making the active substitute the appropriate choice for component replacement.

Compliance and Certification: Both parts maintain equivalent regulatory compliance. The substitute achieves ROHS3 Compliant status, which supersedes the RoHS Compliant designation of the main part, providing enhanced environmental compliance for new applications.

Electrical Compatibility: Forward voltage differential is 0.05V (2.95V vs. 2.9V), which falls within acceptable operating tolerance for LED applications. Both parts operate at identical test current (65mA) and share the same 4000K color temperature specification. The substitute's maximum current rating of 180mA exceeds the main part's 150mA rating, providing additional operational margin.

Mechanical and Thermal Compatibility: Physical footprint dimensions are identical (5.00mm x 3.00mm). The substitute exhibits a 0.10mm reduction in seated height (0.80mm vs. 0.90mm), which is negligible for PCB assembly and does not impact thermal performance. Thermal resistance remains constant at 16°C/W.

Packaging and Handling: Both parts share identical MSL rating (2A, 4 Weeks) and ECCN/HTSUS classifications, ensuring equivalent supply chain handling and regulatory documentation requirements.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WATMS4 be used as a direct replacement for SPMWHT541MD5WATHS1 in existing PCB designs?

A: Yes. Both parts share identical footprint dimensions (5.00mm x 3.00mm), package type (4-SMD, 5630), and thermal characteristics (16°C/W). The forward voltage difference of 0.05V is within acceptable operating tolerance for LED circuits. PCB layout modifications are not required.

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

A: The main part features an exposed pad configuration, while the substitute uses flat leads. Both are 4-SMD surface mount packages in the 5630 footprint. The functional electrical performance and thermal dissipation characteristics remain equivalent. Soldering process parameters may require minor adjustment based on PCB design and reflow profile specifications.

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

A: This classification indicates the part has reached end-of-life status in Samsung's product portfolio. The SPMWHT541MP5WATMS4 substitute carries "Active" status, confirming ongoing manufacturing and supply availability. For new designs or component replacement, the active substitute is the appropriate selection.

Q: Are there any differences in color temperature or light output between these parts?

A: Both parts are specified at 4000K neutral white color temperature. The substitute provides additional performance data (33lm at 65mA, 172 lm/W, 80 CRI, 120° viewing angle) not specified for the main part. These enhancements represent product evolution within the LM561B series and do not affect compatibility.

Q: What is the significance of the ROHS3 compliance upgrade?

A: ROHS3 Compliant status represents an updated regulatory certification standard. This upgrade ensures the substitute part meets current environmental and hazardous substance restrictions. Both parts maintain equivalent RoHS compliance for existing applications.

Q: Can the substitute part handle higher current levels than the main part?

A: Yes. The substitute's maximum current rating is 180mA compared to the main part's 150mA. Both parts operate at the same test current of 65mA. The higher maximum rating provides additional operational margin and thermal headroom in the circuit design.

Q: Are moisture sensitivity and handling requirements identical?

A: Yes. Both parts carry identical MSL rating of 2A (4 Weeks), requiring equivalent storage, handling, and reflow process controls. No changes to component management procedures are necessary when substituting.