SPMWHT541MD5WATMSB LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WATMSB is a Samsung Semiconductor LM561B series white neutral LED with a color temperature of 4000K, designed for surface mount applications in the 5630 package format. This component delivers 30 lumens at 65mA with a forward voltage of 2.95V and a viewing angle of 120°. The part is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and transition to active product lines that offer improved performance characteristics or enhanced availability.

Substiute Parts

SPMWHT541MD5WATMSB

Samsung Semiconductor, Inc.In Stock: 846SPMWHT541MD5WATMSB Datasheet

Current PartRFQ

SPMWHT541MP5WATMS4

Samsung Semiconductor, Inc.In Stock: 600211SPMWHT541MP5WATMS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD5WATMSB is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Series family: LM561B or LM561B Plus
• Color specification: White, Neutral
• Correlated Color Temperature (CCT): 4000K
• Forward voltage (Vf): 2.95V (typical)
• Test current: 65mA
• Viewing angle: 120°
• Package format: 5630 (4-SMD, surface mount)
• Package dimensions: 5.00mm × 3.00mm
• Thermal resistance: 16°C/W
• Moisture sensitivity level: 2A (4 Weeks)

Allowable Variation Parameters:

• Flux output: Substitutes may exceed the original 30 lm specification while maintaining the same test conditions
• Lumens/Watt efficiency: Substitutes may demonstrate improved efficiency
• Maximum current rating: Substitutes may have higher maximum current ratings
• Height (seated): Minor reductions are acceptable if within mechanical constraints
• Product status: Active products are preferred over end-of-life designations
• RoHS compliance level: ROHS3 is acceptable as an upgrade from RoHS Compliant

The SPMWHT541MP5WATMS4 qualifies as a direct substitute based on these criteria, offering enhanced performance within the same electrical and mechanical envelope.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP5WATMS4

The SPMWHT541MP5WATMS4 is the qualified substitute for the SPMWHT541MD5WATMSB based on the following engineering criteria:

1. Product Status Alignment: The substitute is classified as "Active," whereas the original part is "Not For New Designs." This transition ensures long-term supply chain viability and access to current manufacturing processes.

2. Electrical Compatibility: Both parts operate at identical forward voltage (2.95V) and test current (65mA), ensuring direct functional equivalence in existing circuit designs without modification to drive electronics or current-limiting resistor values.

3. Optical Characteristics: The substitute maintains identical color temperature (4000K), CRI (80), and viewing angle (120°), preserving color rendering and spatial light distribution properties.

4. Mechanical Fit: Both components share the same 5.00mm × 3.00mm footprint and 5630 package designation. The substitute exhibits a lower seated height (0.80mm vs. 0.90mm), which is mechanically compatible with existing PCB layouts and does not introduce clearance conflicts.

5. Compliance Enhancement: The substitute carries ROHS3 certification, representing an upgrade from the original RoHS Compliant designation and ensuring alignment with current regulatory requirements.

6. Performance Improvement: The substitute delivers 10% higher luminous flux (33 lm vs. 30 lm) and 10.3% improved efficiency (172 lm/W vs. 156 lm/W) at identical operating conditions, providing enhanced performance without design modification.

7. Thermal Characteristics: Thermal resistance remains constant at 16°C/W, maintaining thermal management equivalence.

8. Moisture Sensitivity: Both parts share identical MSL rating (2A, 4 Weeks), requiring identical handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the SPMWHT541MP5WATMS4 be used as a direct replacement for the SPMWHT541MD5WATMSB without circuit modification?

A: Yes. Both parts operate at 2.95V forward voltage and 65mA test current with identical optical properties (4000K, 80 CRI, 120° viewing angle). No changes to drive circuitry, current-limiting resistors, or power supply specifications are required.

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

A: This designation indicates the SPMWHT541MD5WATMSB has reached end-of-life in Samsung's product portfolio. New designs should incorporate the SPMWHT541MP5WATMS4, which is actively manufactured and supported.

Q: Are there mechanical compatibility concerns between the two parts?

A: No. Both parts use the 5630 package with identical 5.00mm × 3.00mm footprints. The substitute has a lower seated height (0.80mm vs. 0.90mm), which does not create clearance issues and may improve thermal performance in space-constrained applications.

Q: How do the performance specifications differ?

A: The substitute delivers 3 lumens additional flux (33 lm vs. 30 lm) and 16 lm/W higher efficiency (172 lm/W vs. 156 lm/W) at the same 65mA test current. The substitute also supports higher maximum current (180mA vs. 150mA), providing additional operational headroom.

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

A: Both are 4-SMD surface mount packages with identical electrical and thermal performance. The lead configuration variant does not affect electrical compatibility or thermal resistance (both 16°C/W).

Q: Are the RoHS compliance levels interchangeable?

A: Yes. ROHS3 Compliant (substitute) represents an enhanced compliance level and is fully compatible with applications requiring RoHS Compliant (original) components.

Q: What is the inventory status for each part?

A: The original SPMWHT541MD5WATMSB has 765 pieces in stock. The substitute SPMWHT541MP5WATMS4 has 600,200 pieces in stock, indicating significantly greater availability and supply chain stability.

Q: Do both parts require identical handling and storage procedures?

A: Yes. Both parts carry MSL 2A (4 Weeks) rating, requiring identical moisture sensitivity precautions, storage conditions, and reflow processing protocols.

Q: Can the substitute be used in existing PCB designs without layout modifications?

A: Yes. The identical footprint (5.00mm × 3.00mm) and lower seated height ensure direct compatibility with existing PCB layouts. No trace routing, pad repositioning, or clearance adjustments are necessary.