SPMWHT541MD5WARMSD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WARMSD is a Samsung Semiconductor LM561B series cool white LED (5000K) in 5630 surface mount package format. This component is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. The part delivers 35lm at 65mA test current with a forward voltage of 2.95V and 120° viewing angle, suitable for general illumination applications requiring cool white color temperature.

Due to its discontinued status, identifying functionally equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this LED specification remains required.

Substiute Parts

SPMWHT541MD5WARMSD

Samsung Semiconductor, Inc.In Stock: 1186SPMWHT541MD5WARMSD Datasheet

Current PartRFQ

SPMWHT541MP5WAR0S5

Samsung Semiconductor, Inc.In Stock: 17963SPMWHT541MP5WAR0S5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SPMWHT541MD5WARMSD are identified based on strict parameter alignment within the LM561B product family. The substitution logic is based on the following criteria:

Primary Matching Criteria (Non-negotiable):

• Color temperature: 5000K cool white
• Package type: 5630 (4-SMD, surface mount)
• Forward voltage: 2.95V (typical)
• Test current: 65mA nominal operation
• Viewing angle: 120°
• CRI: 80 or higher

Secondary Compatibility Factors:

• Flux output within acceptable range (33-37lm minimum at 65mA)
• Maximum current rating sufficient for circuit design (≥150mA)
• Thermal resistance compatible with application thermal budget
• RoHS compliance status (minimum RoHS3 or equivalent)
• Moisture sensitivity level: 2A classification

The SPMWHT541MP5WAR0S5 qualifies as a direct substitute because it maintains identical color temperature, package footprint, forward voltage, and test current specifications while offering improved performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement Applications:

The SPMWHT541MP5WAR0S5 is the appropriate substitute for SPMWHT541MD5WARMSD in applications requiring identical electrical and optical performance. Both parts share the same forward voltage (2.95V), test current (65mA), color temperature (5000K), and viewing angle (120°), ensuring drop-in compatibility at the circuit level.

Product Status Consideration:

The main part SPMWHT541MD5WARMSD carries "Not For New Designs" status, indicating Samsung has discontinued active development and support. The substitute SPMWHT541MP5WAR0S5 maintains "Active" product status, providing assured long-term availability and continued manufacturing support. This status difference is significant for production planning and supply chain continuity.

Compliance and Certification:

Both parts meet RoHS requirements. The substitute carries ROHS3 compliance, representing a higher regulatory standard than the main part's RoHS Compliant designation. Both parts maintain identical Moisture Sensitivity Level (2A, 4 Weeks), requiring equivalent handling and storage protocols.

Performance Advantages of Substitute:

The SPMWHT541MP5WAR0S5 demonstrates measurable improvements over the main part:

• Flux output: 36lm versus 35lm (2.9% higher)
• Lumens/Watt efficiency: 188 lm/W versus 183 lm/W (2.7% improvement)
• Maximum current rating: 180mA versus 150mA (20% higher headroom)
• Thermal resistance: 15°C/W versus 16°C/W (improved heat dissipation)
• Seated height: 0.80mm versus 0.90mm (lower profile)

These improvements do not alter functional compatibility but provide enhanced design margins and thermal performance.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAR0S5 be used as a direct replacement for SPMWHT541MD5WARMSD without circuit modification?

A: Yes. Both parts operate at identical forward voltage (2.95V) and test current (65mA). The 5630 package footprint is identical, and both are surface mount components. No circuit redesign is required for substitution.

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

A: This designation indicates Samsung has concluded active development and support for SPMWHT541MD5WARMSD. The part may face supply constraints or discontinuation. The substitute SPMWHT541MP5WAR0S5 carries "Active" status, ensuring continued availability and manufacturing support.

Q: Are there differences in package lead configuration between these parts?

A: The main part specifies "Flat Lead Exposed Pad" while the substitute specifies "Flat Leads." Both maintain the identical 5630 footprint (5.00mm x 3.00mm) and 4-SMD configuration. The difference in lead description does not affect PCB compatibility or assembly processes.

Q: How do the flux output specifications compare?

A: The main part delivers 35lm (33-37lm range) at 65mA test current. The substitute delivers 36lm (35-37lm range) at the same test current. The substitute's tighter tolerance band (35-37lm) and higher nominal output (36lm) represent improved manufacturing consistency and performance.

Q: What is the thermal performance difference?

A: The main part has thermal resistance of 16°C/W; the substitute has 15°C/W. This 1°C/W improvement in the substitute allows better heat dissipation from the LED junction, resulting in lower operating temperatures under identical power conditions.

Q: Are the moisture sensitivity requirements identical?

A: Yes. Both parts carry MSL 2A classification with 4-week floor life. Identical handling, storage, and reflow protocols apply to both components.

Q: Does the substitute's higher maximum current rating (180mA vs 150mA) affect circuit compatibility?

A: No. The higher maximum current rating on the substitute provides additional design margin and does not require circuit modification. Existing circuits designed for 150mA maximum operation remain fully compatible.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: Both designations indicate lead-free, halogen-free construction compliant with RoHS directives. ROHS3 represents a more recent and stringent compliance standard. Both parts meet environmental and regulatory requirements for current applications.

Q: Can these parts be mixed in the same production batch?

A: Yes. Identical electrical characteristics, package footprint, and mounting type allow both parts to function identically in the same circuit. However, inventory management should track parts separately due to different product status and supplier part numbers.

Q: Is there a height difference that could affect PCB assembly or enclosure fit?

A: The main part seated height is 0.90mm maximum; the substitute is 0.80mm maximum. The substitute's lower profile provides additional clearance in space-constrained applications. This difference does not create compatibility issues but may improve thermal performance in confined spaces.