SPMWHT541MD7WAWMS0 Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD7WAWMS0 is a Samsung Semiconductor LM561B warm white LED designed for general lighting applications. This 5630 package LED operates at 2700K color temperature with a forward voltage of 2.95V and typical current of 65mA, delivering 23 lumens at 120 lm/W efficiency. The component features a 120° viewing angle and is mounted as a 4-SMD surface mount device with exposed pad construction.

The SPMWHT541MD7WAWMS0 carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this LED specification.

Substiute Parts

SPMWHT541MD7WAWMS0

Samsung Semiconductor, Inc.In Stock: 1216SPMWHT541MD7WAWMS0 Datasheet

Current PartRFQ

SPMWHT541MP7WAWMS0

Samsung Semiconductor, Inc.In Stock: 19478SPMWHT541MP7WAWMS0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD7WAWMS0 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Color and CCT: White, Warm 2700K
• Forward Voltage (Vf): 2.95V nominal
• Test Current: 65mA
• CRI: 90 minimum
• Viewing Angle: 120°
• Package Type: 4-SMD surface mount
• Physical Dimensions: 5.00mm × 3.00mm footprint
• Thermal Resistance: Within acceptable range for thermal design

Allowable Variation Parameters:

• Luminous Flux: Range 20–28 lm acceptable at test current
• Lumens/Watt: Efficiency improvements permitted
• Maximum Current Rating: May exceed 150mA
• Height: Seated height up to 0.90mm acceptable
• Thermal Resistance: Up to 16°C/W acceptable

The SPMWHT541MP7WAWMS0 qualifies as a direct substitute based on matching all critical parameters while demonstrating improved performance in flux output and efficiency metrics.

Parameter Comparison

Engineering Selection Recommendations

SPMWHT541MP7WAWMS0 as Primary Substitute:

The SPMWHT541MP7WAWMS0 is the qualified substitute for the obsolete SPMWHT541MD7WAWMS0. Selection is based on the following engineering criteria:

1. Product Status Alignment: The substitute carries Active product status, ensuring long-term availability and supply chain continuity compared to the Obsolete main part.

2. Electrical Compatibility: Both parts operate at identical forward voltage (2.95V) and test current (65mA), ensuring direct circuit compatibility without redesign of current-limiting resistor networks or power supply specifications.

3. Photometric Performance: The substitute delivers 25 lumens at test current versus 23 lumens for the main part, representing a 2-lumen improvement within the acceptable tolerance band (22–28 lm). Efficiency increases from 120 lm/W to 130 lm/W, indicating improved luminous efficacy.

4. Thermal Characteristics: The substitute exhibits lower thermal resistance (15°C/W versus 16°C/W), providing marginal thermal performance improvement suitable for applications with thermal constraints.

5. Mechanical Compatibility: Identical footprint (5.00 × 3.00mm) and viewing angle (120°) ensure direct PCB layout compatibility. The substitute height (0.80mm) is lower than the main part (0.90mm), providing additional clearance margin in space-constrained designs.

6. Compliance Status: The substitute meets ROHS3 Compliant certification, exceeding the RoHS Compliant status of the main part, ensuring regulatory alignment with current environmental standards.

7. Packaging Availability: The substitute is available in Tape & Reel (TR) packaging with 19,423 units in stock, compared to limited inventory of the obsolete main part.

Frequently Asked Questions (FAQ)

Q: Can the SPMWHT541MP7WAWMS0 be used as a direct replacement for the SPMWHT541MD7WAWMS0 without circuit modification?

A: Yes. Both parts operate at 2.95V forward voltage and 65mA test current. No changes to current-limiting resistors, power supply specifications, or circuit topology are required. The substitute is electrically and mechanically compatible for direct substitution.

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

A: The LM561B Plus series (represented by SPMWHT541MP7WAWMS0) delivers improved luminous flux and efficiency compared to the standard LM561B series. At 65mA test current, the Plus variant produces 25 lumens at 130 lm/W versus 23 lumens at 120 lm/W for the standard series. Both maintain identical electrical operating parameters and color specifications.

Q: Are there any package differences between these parts?

A: Both parts use 4-SMD surface mount packages with 5.00 × 3.00mm footprints. The main part features a Flat Lead Exposed Pad configuration, while the substitute uses Flat Leads. Both are compatible with standard SMD assembly processes. The substitute height (0.80mm) is 0.10mm lower than the main part (0.90mm), providing additional clearance in compact designs.

Q: What is the significance of the Active versus Obsolete product status?

A: The SPMWHT541MD7WAWMS0 is classified as Obsolete, indicating Samsung Semiconductor has discontinued production and support. The SPMWHT541MP7WAWMS0 carries Active status, confirming ongoing production, technical support, and long-term supply availability. For new designs or ongoing production, the Active substitute is the appropriate selection.

Q: Do both parts meet the same environmental and compliance standards?

A: Both parts are RoHS compliant. The substitute achieves ROHS3 Compliant certification, representing a higher compliance standard than the main part's RoHS Compliant status. Both parts carry identical Moisture Sensitivity Level (MSL) ratings of 2A (4 Weeks) and ECCN/HTSUS classifications, ensuring equivalent handling and regulatory requirements.

Q: What is the thermal resistance specification, and why does it matter?

A: Thermal resistance (°C/W) quantifies the temperature rise per watt of dissipated power. The substitute's 15°C/W rating is lower than the main part's 16°C/W, indicating slightly better heat dissipation characteristics. In applications with thermal constraints or high ambient temperatures, the substitute provides marginal thermal performance improvement.

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

A: Yes. The substitute's maximum current rating is 180mA compared to 150mA for the main part. However, both parts are specified for 65mA test current in standard applications. The higher maximum rating provides additional design margin but does not change the recommended operating point.

Q: Is the luminous flux difference between 23 lumens and 25 lumens significant?

A: The 2-lumen difference represents approximately 8.7% improvement. Both values fall within acceptable tolerance ranges for warm white 2700K LEDs in this package class. The difference is perceptible in applications requiring precise luminous output but is negligible in general lighting applications with tolerance bands of ±10% or greater.