SPMWHT541MP5WAP0SD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAP0SD is a Samsung Semiconductor LM561B Plus white LED in 5630 package format, specified for cool white 6500K color temperature applications. This component operates at 2.95V forward voltage with 65mA test current, delivering 34lm at 25°C and 177 lm/W efficiency. The part carries a "Not For New Designs" status, necessitating identification of equivalent and substitute components for ongoing production and new design implementations.

Substiute Parts

SPMWHT541MP5WAP0SD

Samsung Semiconductor, Inc.In Stock: 1155SPMWHT541MP5WAP0SD Datasheet

Current PartRFQ

SPMWHT541MP5WAPKS4

Samsung Semiconductor, Inc.In Stock: 48537SPMWHT541MP5WAPKS4 Datasheet

SimilarRFQ

SPMWHT541ML5XAPKS0

Samsung Semiconductor, Inc.In Stock: 813SPMWHT541ML5XAPKS0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MP5WAP0SD is determined by the following critical parameters:

Primary Compatibility Criteria:

• Color temperature: 6500K (cool white)
• Package format: 5630 (4-SMD, Flat Leads)
• Mounting type: Surface Mount
• Viewing angle: 120°
• Test current: 65mA
• Forward voltage range: 2.8V to 2.95V
• CRI: 80
• Flux output range: 32–36lm @ 25°C
• Thermal resistance: 12–16°C/W
• RoHS compliance: RoHS Compliant or ROHS3 Compliant

Substitution Categories:

Direct Substitute (Same Series): SPMWHT541MP5WAPKS4 maintains identical electrical and mechanical specifications within the LM561B Plus series, with active product status.

Parametric Equivalent (Cross-Series): SPMWHT541ML5XAPKS0 operates within the same electrical envelope (2.8V forward voltage, 65mA test current, 34lm flux) and mechanical package, representing the LM561C series with improved thermal characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

For New Designs: SPMWHT541MP5WAPKS4 is the recommended selection. This part maintains identical electrical and mechanical specifications to the main part while carrying Active product status, ensuring long-term availability and supply chain stability. ROHS3 compliance provides enhanced regulatory alignment.

For Existing Production Continuity: SPMWHT541MP5WAPKS4 provides direct compatibility with existing designs using SPMWHT541MP5WAP0SD, requiring no circuit modifications or thermal management adjustments.

For Thermal Performance Optimization: SPMWHT541ML5XAPKS0 offers superior thermal characteristics (12°C/W versus 16°C/W) and higher luminous efficacy (187 lm/W versus 177 lm/W). The 0.15V lower forward voltage (2.8V versus 2.95V) requires circuit verification to confirm compatibility with existing current-limiting designs. This part is suitable for applications where thermal dissipation or efficiency improvements are beneficial.

Compliance Considerations: All substitute parts maintain RoHS compliance (ROHS3 for active parts) and identical MSL ratings, supporting standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAPKS4 be used as a direct replacement for SPMWHT541MP5WAP0SD?

A: Yes. SPMWHT541MP5WAPKS4 is electrically and mechanically identical to the main part, with identical forward voltage (2.95V), test current (65mA), flux output (33lm within the 32–34lm range), and package dimensions (5630, 5.00 × 3.00mm). No circuit modifications are required.

Q: What is the difference between SPMWHT541MP5WAPKS4 and SPMWHT541ML5XAPKS0?

A: Both parts operate at 6500K cool white with identical package format and viewing angle. The primary differences are: (1) Series designation (LM561B Plus versus LM561C), (2) Forward voltage (2.95V versus 2.8V), (3) Thermal resistance (15°C/W versus 12°C/W), and (4) Luminous efficacy (167 lm/W versus 187 lm/W). The LM561C variant provides better thermal performance and efficiency.

Q: Is the 0.15V forward voltage difference between SPMWHT541MP5WAPKS4 and SPMWHT541ML5XAPKS0 significant?

A: The voltage difference is within the operating envelope of both parts. However, designs using fixed current-limiting resistors or voltage-regulated supplies must verify that the lower forward voltage of SPMWHT541ML5XAPKS0 (2.8V) does not cause excessive current draw. Constant-current LED drivers are unaffected by this difference.

Q: Why does SPMWHT541MP5WAP0SD carry "Not For New Designs" status?

A: This designation indicates the part is in end-of-life phase. SPMWHT541MP5WAPKS4 and SPMWHT541ML5XAPKS0 are active alternatives ensuring continued availability for new product development.

Q: Are all three parts RoHS compliant?

A: Yes. SPMWHT541MP5WAP0SD is RoHS Compliant. SPMWHT541MP5WAPKS4 and SPMWHT541ML5XAPKS0 are ROHS3 Compliant, representing enhanced regulatory alignment.

Q: What is the thermal resistance significance in selecting between substitutes?

A: Thermal resistance (°C/W) indicates heat dissipation efficiency. SPMWHT541ML5XAPKS0 (12°C/W) dissipates heat more effectively than SPMWHT541MP5WAPKS4 (15°C/W) and the main part (16°C/W). In thermally constrained applications, the lower thermal resistance of the LM561C variant reduces junction temperature rise.

Q: Can these parts be used interchangeably in existing PCB layouts?

A: Yes. All three parts share identical package format (5630, 4-SMD Flat Leads), dimensions (5.00 × 3.00mm), and height (0.80mm maximum), ensuring mechanical and electrical compatibility with existing PCB designs without layout modifications.