SPMWHT541MD5WAPMSC LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAPMSC is a Samsung Semiconductor LM561B series cool white LED (6500K) designed for surface mount lighting applications. This component delivers 32 lumens at 65mA forward current with a typical forward voltage of 2.95V and a 120° viewing angle. The part is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. This status necessitates identification of functionally equivalent substitute components for ongoing production requirements and design continuity.

Substiute Parts

SPMWHT541MD5WAPMSC

Samsung Semiconductor, Inc.In Stock: 911SPMWHT541MD5WAPMSC Datasheet

Current PartRFQ

SPMWHT541MP5WAPKS4

Samsung Semiconductor, Inc.In Stock: 48537SPMWHT541MP5WAPKS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD5WAPMSC is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Color and correlated color temperature (CCT): White, Cool 6500K
• Luminous flux range at test current: 30–34 lm nominal
• Forward voltage: 2.95V typical
• Test current: 65mA
• Viewing angle: 120°
• Package type: 4-SMD surface mount
• Package designation: 5630 (5.00 × 3.00 mm footprint)
• CRI: 80 minimum
• Mounting compatibility: Surface mount, flat lead configuration

Allowable Variation Parameters:

• Maximum forward current: May exceed 150mA if electrical characteristics remain within specification
• Height: Seated height up to 0.90mm maximum
• Thermal resistance: Variation acceptable within package thermal design limits
• Product status: Active or Not For New Designs status does not affect electrical substitution validity

The substitute part SPMWHT541MP5WAPKS4 meets all critical matching parameters and is therefore classified as a direct electrical and mechanical equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP5WAPKS4

The SPMWHT541MP5WAPKS4 is the direct substitute for SPMWHT541MD5WAPMSC based on the following engineering criteria:

1. Product Status Alignment: The substitute part carries Active product status, ensuring long-term availability and supply chain continuity. The main part is classified as "Not For New Designs," making substitution necessary for ongoing production.

2. Electrical Equivalence: Both parts operate at identical forward voltage (2.95V) and test current (65mA). Luminous flux output at test current is within specification range (32–34 lm), with the substitute delivering 33 lm compared to the main part's 32 lm. This represents a 3% increase in light output, which is within normal manufacturing tolerance and does not affect circuit design.

3. Mechanical Compatibility: Both components use identical 5630 package footprint (5.00 × 3.00 mm) and 4-SMD surface mount configuration. The substitute's maximum seated height of 0.80mm is lower than the main part's 0.90mm, providing improved clearance in space-constrained applications.

4. Thermal Performance: The substitute exhibits superior thermal resistance (15°C/W versus 16°C/W), indicating improved heat dissipation characteristics. This enhancement does not require circuit redesign and provides operational margin.

5. Compliance Status: The substitute meets ROHS3 compliance, exceeding the main part's RoHS Compliant status. Both parts maintain identical MSL rating (2A, 4 Weeks) and CRI (80).

6. Current Rating: The substitute's maximum current rating of 180mA exceeds the main part's 150mA rating, providing additional operational headroom without affecting standard 65mA test current operation.

No design modifications, circuit adjustments, or additional testing are required for substitution. The SPMWHT541MP5WAPKS4 is a direct replacement suitable for immediate implementation in existing designs.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAPKS4 be used as a direct replacement for SPMWHT541MD5WAPMSC without PCB modifications?

A: Yes. Both parts share identical electrical characteristics (2.95V forward voltage, 65mA test current, 6500K color temperature) and mechanical specifications (5630 package, 5.00 × 3.00 mm footprint, 4-SMD surface mount). No PCB layout changes are required.

Q: What is the difference between "Flat Lead Exposed Pad" and "Flat Leads" package designations?

A: Both designations refer to 4-SMD surface mount configurations with flat lead geometry. The main part includes an exposed thermal pad for enhanced heat dissipation, while the substitute uses standard flat leads. Both are compatible with standard 5630 package footprints and reflow soldering processes.

Q: Is the 1 lumen difference in flux output (32 lm vs. 33 lm) significant?

A: No. Both values fall within the specification range of 30–34 lm at 65mA test current. The 3% difference represents normal manufacturing variation and does not affect circuit performance or light output requirements.

Q: Why is the main part classified as "Not For New Designs"?

A: This classification indicates the part has reached end-of-life status in Samsung's product portfolio. The substitute SPMWHT541MP5WAPKS4, classified as Active, represents the current production equivalent and is recommended for all new and ongoing designs.

Q: Are there any thermal management differences between the two parts?

A: The substitute exhibits slightly better thermal resistance (15°C/W versus 16°C/W) and lower maximum seated height (0.80mm versus 0.90mm). These characteristics provide improved thermal performance and may offer better clearance in compact designs.

Q: What is the maximum forward current for each part?

A: The main part (SPMWHT541MD5WAPMSC) is rated for 150mA maximum current. The substitute (SPMWHT541MP5WAPKS4) is rated for 180mA maximum current. Standard operation at 65mA test current is identical for both parts.

Q: Do both parts require identical moisture handling procedures?

A: Yes. Both parts carry MSL rating 2A (4 Weeks), requiring identical moisture sensitivity level handling and storage protocols.

Q: Is the substitute available in the same packaging format (Tape & Reel)?

A: Yes. Both parts are supplied in Tape & Reel (TR) packaging format suitable for automated assembly processes.