SPMWHT541MP5WAUHSD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAUHSD is a Samsung Semiconductor LM561B Plus white warm LED (3500K) in 5630 surface mount package with 4-SMD flat leads configuration. This component operates at 2.95V forward voltage with 65mA test current, delivering 33lm at 25°C and 172 lm/W efficiency. The part is classified as Not For New Designs, indicating end-of-life status. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for ongoing production and field replacement applications.

Substiute Parts

SPMWHT541MP5WAUHSD

Samsung Semiconductor, Inc.In Stock: 1195SPMWHT541MP5WAUHSD Datasheet

Current PartRFQ

SPMWHT541MP5WAU0S5

Samsung Semiconductor, Inc.In Stock: 3242SPMWHT541MP5WAU0S5 Datasheet

SimilarRFQ

SPMWHT541ML5XAU0S0

Samsung Semiconductor, Inc.In Stock: 1151SPMWHT541ML5XAU0S0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XAUKS0

Samsung Semiconductor, Inc.In Stock: 967SPMWHT541ML5XAUKS0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XAUMS0

Samsung Semiconductor, Inc.In Stock: 74356SPMWHT541ML5XAUMS0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XAV0S0

Samsung Semiconductor, Inc.In Stock: 1035SPMWHT541ML5XAV0S0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XAVKS0

Samsung Semiconductor, Inc.In Stock: 985SPMWHT541ML5XAVKS0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XAVMS0

Samsung Semiconductor, Inc.In Stock: 73717SPMWHT541ML5XAVMS0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

Primary Substitution Criteria:

• Package / Case: 4-SMD, Flat Leads (5630 form factor)
• Mounting Type: Surface Mount
• Size / Dimension: 5.00mm L × 3.00mm W
• Height - Seated (Max): 0.80mm
• Viewing Angle: 120°
• CRI: 80
• Maximum Current: 180mA
• Moisture Sensitivity Level: 2A (4 Weeks)
• Packaging: Tape & Reel (TR)

Secondary Substitution Criteria (Allowable Variation):

• Forward Voltage (Vf): 2.75V to 2.95V (within design tolerance)
• Test Current: 65mA (fixed operating point)
• Flux @ 25°C: 31–35lm range (specification band)
• CCT: 3000K or 3500K (warm white spectrum)
• Thermal Resistance: 12–16°C/W (performance variation acceptable)
• Lumens/Watt: 172–185 lm/W (efficiency variation acceptable)

Series Compatibility:

• LM561B Plus (direct equivalent)
• LM561C (parametric equivalent with improved thermal performance)

Substitutes are grouped by product status (Active vs. Not For New Designs) and compliance certification (RoHS vs. ROHS3).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Series, Active Status):

SPMWHT541MP5WAU0S5 is the primary substitute for SPMWHT541MP5WAUHSD. Both are LM561B Plus series components with identical 3500K CCT, 2.95V forward voltage, and 120° viewing angle. The substitute offers improved thermal resistance (15°C/W vs. 16°C/W) and higher luminous efficiency (177 lm/W vs. 172 lm/W). Product status is Active, ensuring continued availability. ROHS3 compliance provides enhanced regulatory alignment compared to the original RoHS Compliant designation.

Parametric Equivalents (LM561C Series, Active Status, Improved Thermal Performance):

LM561C series parts (SPMWHT541ML5XAU0S0, SPMWHT541ML5XAUKS0, SPMWHT541ML5XAUMS0) are parametric equivalents with superior thermal characteristics (12°C/W vs. 16°C/W). These components maintain 3500K CCT, 33lm flux output, and 120° viewing angle. Forward voltage ranges from 2.75V to 2.8V, within acceptable design tolerance. Lumens/Watt efficiency is 181–185 lm/W, exceeding the original 172 lm/W. All are Active status with RoHS or ROHS3 compliance. High inventory availability (948–74264 pcs) supports production continuity.

CCT Variant Consideration (3000K Warm White):

SPMWHT541ML5XAV0S0, SPMWHT541ML5XAVKS0, and SPMWHT541ML5XAVMS0 are LM561C series parts with 3000K CCT instead of 3500K. These are suitable only if application design permits lower color temperature. All other electrical and mechanical parameters remain equivalent to 3500K variants. Thermal resistance is 12°C/W with 181–185 lm/W efficiency.

Compliance and Availability:

All substitute parts maintain Tape & Reel packaging, 5630 form factor, and 2A MSL rating. SPMWHT541ML5XAUMS0 and SPMWHT541ML5XAVMS0 offer highest inventory (74264 and 73676 pcs respectively) with ROHS3 compliance, supporting large-scale production requirements.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAU0S5 directly replace SPMWHT541MP5WAUHSD in existing designs?

A: Yes. Both parts are LM561B Plus series with identical electrical specifications (2.95V, 65mA, 3500K, 33lm, 120° viewing angle) and mechanical package (5630, 4-SMD, flat leads). The substitute offers improved thermal resistance and efficiency. No circuit redesign is required.

Q: What is the difference between LM561B Plus and LM561C series substitutes?

A: LM561C series offers superior thermal resistance (12°C/W vs. 16°C/W for LM561B Plus) and higher lumens/watt efficiency (181–185 lm/W vs. 172–177 lm/W). Forward voltage is slightly lower (2.75–2.8V vs. 2.95V). Both series maintain identical package dimensions, viewing angle, and flux output at 65mA test current. LM561C is suitable for applications requiring improved thermal management.

Q: Are there CCT (color temperature) options available?

A: Yes. The original part is 3500K warm white. Equivalent 3500K substitutes include SPMWHT541MP5WAU0S5, SPMWHT541ML5XAU0S0, SPMWHT541ML5XAUKS0, and SPMWHT541ML5XAUMS0. Lower color temperature (3000K) variants are available as SPMWHT541ML5XAV0S0, SPMWHT541ML5XAVKS0, and SPMWHT541ML5XAVMS0. CCT selection depends on application lighting requirements.

Q: What is the significance of RoHS vs. ROHS3 compliance?

A: Both designations indicate lead-free and hazardous substance restriction compliance. ROHS3 represents the current regulatory standard with enhanced scope. Parts marked ROHS3 Compliant (SPMWHT541MP5WAU0S5, SPMWHT541ML5XAUMS0, SPMWHT541ML5XAVMS0) provide forward compliance assurance for new designs and future regulatory requirements.

Q: Can I use LM561C parts in place of LM561B Plus?

A: Yes, with design verification. LM561C maintains identical package, viewing angle, and flux output. Forward voltage is 0.15–0.20V lower (2.75–2.8V vs. 2.95V), which may affect circuit current limiting calculations. Thermal resistance is superior (12°C/W vs. 16°C/W). Verify that lower forward voltage does not impact LED driver compatibility or current regulation.

Q: What inventory levels support production continuity?

A: SPMWHT541ML5XAUMS0 (74264 pcs) and SPMWHT541ML5XAVMS0 (73676 pcs) offer highest availability. SPMWHT541MP5WAU0S5 provides 3192 pcs of LM561B Plus series. For immediate replacement of end-of-life SPMWHT541MP5WAUHSD (1100 pcs in stock), SPMWHT541MP5WAU0S5 is the recommended direct equivalent.

Q: Are all substitute parts in Tape & Reel packaging?

A: Yes. All listed substitutes are supplied in Tape & Reel (TR) packaging with 5630 form factor, 4-SMD flat leads configuration, and 2A Moisture Sensitivity Level (4 Weeks). Package dimensions are 5.00mm L × 3.00mm W with 0.80mm maximum seated height. No package conversion is required.

Q: What thermal resistance improvement does LM561C provide?

A: LM561C series reduces thermal resistance from 16°C/W (LM561B Plus) to 12°C/W, a 25% improvement. This enables better heat dissipation and supports higher ambient temperature operation or increased current density applications. Thermal resistance is a critical parameter for LED reliability and lifespan in thermally constrained designs.