SPMWHT541MP5WAWHSD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAWHSD is a Samsung Semiconductor LM561B Plus white warm LED (2700K) in 5630 surface mount package with 4-SMD flat leads configuration. This component delivers 32lm at 65mA test current with 2.95V forward voltage and 120° viewing angle. The part is classified as Not For New Designs, indicating end-of-life status. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for existing applications.

Substiute Parts

SPMWHT541MP5WAWHSD

Samsung Semiconductor, Inc.In Stock: 862SPMWHT541MP5WAWHSD Datasheet

Current PartRFQ

SPMWHT541MP5WAWMS5

Samsung Semiconductor, Inc.In Stock: 23523SPMWHT541MP5WAWMS5 Datasheet

DirectRFQ

SPMWHT541ML5XAW0S0

Samsung Semiconductor, Inc.In Stock: 1160SPMWHT541ML5XAW0S0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XAWKS0

Samsung Semiconductor, Inc.In Stock: 870SPMWHT541ML5XAWKS0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XAWMS0

Samsung Semiconductor, Inc.In Stock: 32036SPMWHT541ML5XAWMS0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Primary Substitution Criteria:

• Color: White, Warm (fixed requirement)
• CCT: 2700K (fixed requirement)
• Package / Case: 4-SMD, Flat Leads (fixed requirement)
• Supplier Device Package: 5630 (fixed requirement)
• Size / Dimension: 5.00mm × 3.00mm (fixed requirement)
• Height - Seated (Max): 0.80mm (fixed requirement)
• Mounting Type: Surface Mount (fixed requirement)
• Test Current: 65mA (fixed requirement)
• Maximum Current: 180mA (fixed requirement)
• Viewing Angle: 120° (fixed requirement)
• CRI: 80 (fixed requirement)
• MSL: 2A (4 Weeks) (fixed requirement)

Allowable Variation Parameters:

• Forward Voltage (Vf): ±0.20V tolerance permitted
• Flux @ 25°C: 30–34lm range acceptable
• Lumens/Watt: Efficiency variation acceptable within flux range
• Thermal Resistance: Lower values acceptable (improved thermal performance)
• Series: LM561B Plus and LM561C series both acceptable
• Product Status: Active status preferred over Not For New Designs
• RoHS Status: Both RoHS Compliant and ROHS3 Compliant acceptable

Substitute Parts Identified:

1. SPMWHT541MP5WAWMS5 — Direct manufacturer equivalent (LM561B Plus series, Active status)
2. SPMWHT541ML5XAW0S0 — Parametric equivalent (LM561C series, improved thermal performance)
3. SPMWHT541ML5XAWKS0 — Parametric equivalent (LM561C series, improved thermal performance)
4. SPMWHT541ML5XAWMS0 — Parametric equivalent (LM561C series, highest availability)

Parameter Comparison

Engineering Selection Recommendations

SPMWHT541MP5WAWMS5 (Recommended Primary Substitute)

This part is the direct equivalent within the LM561B Plus series. It maintains identical electrical and mechanical specifications to the main part while offering Active product status. The forward voltage (2.95V) and thermal resistance (15°C/W) are directly compatible with existing circuit designs. Inventory availability (23,477 pcs) supports immediate procurement. ROHS3 compliance exceeds baseline RoHS requirements. Selection of this part requires no circuit redesign.

SPMWHT541ML5XAWMS0 (Recommended Secondary Substitute)

This LM561C series part offers the highest inventory availability (31,957 pcs) and Active product status. Forward voltage is 2.8V (within ±0.20V tolerance of 2.95V). Thermal resistance is improved to 12°C/W, providing superior heat dissipation. Lumens/Watt efficiency is 176 lm/W, exceeding the main part's 162 lm/W. ROHS3 compliance is provided. Circuit designs with voltage regulation or current limiting can accommodate the 0.15V forward voltage reduction without performance degradation.

SPMWHT541ML5XAW0S0 and SPMWHT541ML5XAWKS0 (Alternative Substitutes)

Both parts are LM561C series equivalents with identical electrical performance (2.75V forward voltage, 180 lm/W efficiency, 12°C/W thermal resistance). Lower inventory levels (1,071 and 762 pcs respectively) make these secondary choices. Forward voltage is 0.20V below the main part specification, representing the maximum allowable tolerance. These parts are suitable for applications where thermal performance improvement is prioritized.

Compliance and Certification:

All substitute parts maintain MSL 2A (4 Weeks) moisture sensitivity classification, ensuring compatibility with standard PCB assembly processes. RoHS and ROHS3 compliance across all substitutes confirms environmental regulatory alignment. No additional qualification testing is required for parts within the same base product number (SPMWHT541) family.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAWMS5 be used as a direct replacement for SPMWHT541MP5WAWHSD?

A: Yes. Both parts are LM561B Plus series with identical electrical specifications (2.95V forward voltage, 32lm flux, 65mA test current) and mechanical dimensions (5630 package, 5.00mm × 3.00mm, 0.80mm height). The substitute has improved thermal resistance (15°C/W vs. 16°C/W) and Active product status. No circuit modifications are required.

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

A: LM561B Plus (main part and SPMWHT541MP5WAWMS5) operates at 2.95V typical forward voltage. LM561C series parts operate at 2.75V to 2.8V typical forward voltage. This represents a 0.15V to 0.20V reduction. Circuits with regulated current sources or current-limiting resistors will accommodate this variation without performance impact. Voltage-regulated designs may require minor resistor adjustment.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All parts use identical 5630 package specifications: 5.00mm × 3.00mm footprint, 0.80mm maximum seated height, 4-SMD flat leads configuration. PCB layout, solder pad dimensions, and assembly processes require no modification.

Q: What is the significance of Product Status (Not For New Designs vs. Active)?

A: Product Status indicates manufacturer support and supply continuity. The main part (Not For New Designs) is end-of-life with limited future availability. Active status substitutes (SPMWHT541MP5WAWMS5, SPMWHT541ML5XAWMS0, SPMWHT541ML5XAW0S0, SPMWHT541ML5XAWKS0) have confirmed long-term supply and manufacturer support. For ongoing production, Active status parts are preferred.

Q: How does thermal resistance affect component selection?

A: Lower thermal resistance improves heat dissipation. The main part has 16°C/W; LM561C substitutes have 12°C/W. In high-ambient-temperature applications or designs with thermal constraints, LM561C series parts provide superior thermal performance. In standard applications, both specifications are acceptable.

Q: What is the difference in lumens/watt efficiency between substitute options?

A: Main part: 162 lm/W. SPMWHT541MP5WAWMS5: 172 lm/W. LM561C series: 176–180 lm/W. Higher efficiency indicates better light output per unit power consumed. All values fall within the 30–34lm flux specification range at 65mA test current. Efficiency differences reflect manufacturing process improvements in newer series.

Q: Are RoHS and ROHS3 compliance interchangeable?

A: Yes. ROHS3 compliance is a superset of RoHS compliance, incorporating additional restricted substance requirements. Parts with ROHS3 certification (SPMWHT541MP5WAWMS5, SPMWHT541ML5XAWMS0) meet all RoHS requirements and exceed baseline standards. Both compliance levels are acceptable for equivalent substitution.

Q: What inventory considerations apply to substitute selection?

A: SPMWHT541ML5XAWMS0 has the highest availability (31,957 pcs), followed by SPMWHT541MP5WAWMS5 (23,477 pcs). For large-volume production, these parts ensure supply continuity. SPMWHT541ML5XAW0S0 (1,071 pcs) and SPMWHT541ML5XAWKS0 (762 pcs) are suitable for lower-volume applications or as secondary sources.

Q: Can forward voltage differences affect circuit operation?

A: In current-regulated circuits (constant current drivers), forward voltage differences have minimal impact on LED performance. In voltage-regulated circuits, a 0.20V reduction may slightly increase current through the LED if resistor values are not adjusted. For designs operating at maximum current (180mA), verify that thermal and electrical ratings remain within acceptable limits when substituting LM561C parts with lower forward voltage.