Equivalent & Substitute Parts for SPMWHT541MP5WATGS4

Part Overview

The SPMWHT541MP5WATGS4 is a Samsung Semiconductor LM561B Plus white neutral LED in 5630 surface mount package, rated at 4000K color temperature with 2.95V forward voltage and 65mA test current. This part carries a "Not For New Designs" product status, indicating it has been superseded in Samsung's product portfolio. Identification of equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support ongoing production requirements for existing applications.

Substiute Parts

SPMWHT541MP5WATGS4

Samsung Semiconductor, Inc.In Stock: 1095SPMWHT541MP5WATGS4 Datasheet

Current PartRFQ

SPMWHT541MP5WAT0S5

Samsung Semiconductor, Inc.In Stock: 5783SPMWHT541MP5WAT0S5 Datasheet

SimilarRFQ

SPMWH1228FD5W2T0SJ

Samsung Semiconductor, Inc.In Stock: 892SPMWH1228FD5W2T0SJ Datasheet

Parametric EquivalentRFQ

SPMWH1228FD5W2TKSJ

Samsung Semiconductor, Inc.In Stock: 1046SPMWH1228FD5W2TKSJ Datasheet

Parametric EquivalentRFQ

SPMWH1228FD5W2TMSJ

Samsung Semiconductor, Inc.In Stock: 1243SPMWH1228FD5W2TMSJ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SPMWHT541MP5WATGS4 are classified into two categories based on substitution criteria:

Direct Equivalent (Same Series): The part SPMWHT541MP5WAT0S5 is a direct equivalent within the LM561B Plus series. This part maintains identical electrical and optical specifications: 4000K color temperature, 2.95V forward voltage, 80 CRI, 120° viewing angle, and 5630 package dimensions. The primary distinction is product status (Active versus Not For New Designs) and improved thermal resistance (15°C/W versus 20°C/W). This part satisfies all substitution criteria for direct replacement in existing designs.

Parametric Equivalents (Different Series): The parts SPMWH1228FD5W2T0SJ, SPMWH1228FD5W2TKSJ, and SPMWH1228FD5W2TMSJ belong to the LM281B+ series and function as parametric equivalents. These parts share the following allowed substitution parameters: white neutral color, 4000K CCT, 80 CRI, 120° viewing angle, 4-SMD flat lead package, 5630 supplier device package, and identical physical dimensions (5.00mm x 3.00mm, 0.80mm height). Differences exist in forward voltage (2.9V versus 2.95V), test current (150mA versus 65mA), and thermal resistance (25°C/W versus 20°C/W). These differences fall within acceptable parametric tolerance for applications where the LM561B Plus is used.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement in Active Production: SPMWHT541MP5WAT0S5 is the recommended substitute for SPMWHT541MP5WATGS4. Both parts carry Active product status and maintain identical electrical, optical, and mechanical specifications. The improved thermal resistance of SPMWHT541MP5WAT0S5 (15°C/W versus 20°C/W) provides enhanced thermal performance without requiring design modification. Both parts are RoHS Compliant with matching MSL ratings. This substitution requires no circuit redesign or validation.

For Extended Supply Chain Options: SPMWH1228FD5W2T0SJ, SPMWH1228FD5W2TKSJ, and SPMWH1228FD5W2TMSJ are parametric equivalents suitable for applications where forward voltage tolerance of ±0.05V and test current variation are acceptable. All three parts maintain 4000K color temperature, 80 CRI, 120° viewing angle, and identical package geometry. These parts carry Active product status and ROHS3 Compliant certification. The higher test current (150mA versus 65mA) and increased thermal resistance (25°C/W) must be evaluated against circuit design parameters. These substitutions are suitable for new designs and ongoing production where parametric flexibility exists.

Compliance Considerations: All substitute parts maintain RoHS compliance. SPMWHT541MP5WAT0S5 preserves the original RoHS Compliant designation, while parametric equivalents carry ROHS3 Compliant status. No regulatory barriers exist for substitution in applications subject to RoHS directives.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAT0S5 be used as a direct replacement for SPMWHT541MP5WATGS4 without circuit modification?

A: Yes. SPMWHT541MP5WAT0S5 is a direct equivalent with identical forward voltage (2.95V), test current (65mA), color temperature (4000K), CRI (80), viewing angle (120°), and package dimensions. The improved thermal resistance (15°C/W) is a performance enhancement that does not require design changes.

Q: What are the key differences between the LM561B Plus and LM281B+ series substitutes?

A: The LM281B+ series (SPMWH1228FD5W2T0SJ, SPMWH1228FD5W2TKSJ, SPMWH1228FD5W2TMSJ) differs in forward voltage (2.9V versus 2.95V), test current (150mA versus 65mA), and thermal resistance (25°C/W versus 20°C/W). Color temperature, CRI, viewing angle, and package geometry remain identical. These differences are parametric variations within acceptable tolerance for most lighting applications.

Q: Are the physical dimensions identical across all substitute parts?

A: Yes. All parts maintain 5630 package dimensions of 5.00mm length x 3.00mm width with 0.80mm maximum seated height. PCB footprint and assembly compatibility are identical across all listed parts.

Q: What is the significance of "Not For New Designs" status on the main part?

A: This designation indicates that SPMWHT541MP5WATGS4 has been superseded in Samsung's product portfolio. While existing inventory remains available, Samsung recommends using Active status parts (SPMWHT541MP5WAT0S5 or LM281B+ series) for new designs to ensure long-term supply continuity and access to product support.

Q: Can parametric equivalents be used in existing designs originally specified for SPMWHT541MP5WATGS4?

A: Parametric equivalents can be used if circuit design tolerates the specified parameter variations: forward voltage of 2.9V (versus 2.95V), test current of 150mA (versus 65mA), and thermal resistance of 25°C/W (versus 20°C/W). Design validation is required to confirm compatibility with power supply regulation, current limiting circuits, and thermal management. Direct equivalent SPMWHT541MP5WAT0S5 eliminates this requirement.

Q: What is the inventory status of substitute parts?

A: SPMWHT541MP5WAT0S5 has 5749 pieces in stock. SPMWH1228FD5W2T0SJ has 845 pieces, SPMWH1228FD5W2TKSJ has 996 pieces, and SPMWH1228FD5W2TMSJ has 1162 pieces available. All parts are listed as New Original stock.

Q: Are there any compliance or certification differences between substitute options?

A: SPMWHT541MP5WAT0S5 maintains RoHS Compliant status matching the original part. Parametric equivalents carry ROHS3 Compliant certification, which represents an enhanced compliance standard. Both designations satisfy RoHS directive requirements. No regulatory barriers exist for substitution.

Q: How should thermal resistance differences be evaluated in circuit design?

A: Thermal resistance affects junction temperature rise above ambient. Lower thermal resistance (15°C/W for SPMWHT541MP5WAT0S5) results in cooler operation compared to higher values (25°C/W for LM281B+ series). For applications with thermal constraints, the direct equivalent with improved thermal resistance is preferred. For applications with adequate thermal margin, parametric equivalents are acceptable.