SPMWHT541MD5WAVKS3 Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAVKS3 is a Samsung Semiconductor LM561B series warm white LED designed for surface mount lighting applications. This 5630 package LED operates at 3000K color temperature with a forward voltage of 2.95V and test current of 65mA, delivering 30 lumens at 156 lm/W efficiency. The component features a 120° viewing angle and is housed in a 4-SMD flat lead exposed pad configuration measuring 5.00mm × 3.00mm.

The SPMWHT541MD5WAVKS3 carries a "Not For New Designs" product status, indicating Samsung has transitioned this model line. Identifying equivalent substitute parts is necessary for ongoing production support, inventory management, and design continuity where existing specifications remain applicable.

Substiute Parts

SPMWHT541MD5WAVKS3

Samsung Semiconductor, Inc.In Stock: 962SPMWHT541MD5WAVKS3 Datasheet

Current PartRFQ

SPMWHT541MP5WAVMS4

Samsung Semiconductor, Inc.In Stock: 50283SPMWHT541MP5WAVMS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAVKS3 is determined by strict alignment across the following critical parameters:

Mandatory Matching Parameters:

• Series family (LM561B)
• Color and CCT (White, Warm, 3000K)
• Forward voltage (2.95V typical)
• Test current (65mA)
• Package type (4-SMD, 5630 form factor)
• Physical dimensions (5.00mm × 3.00mm)
• Viewing angle (120°)
• CRI (80)
• Thermal resistance (16°C/W)
• RoHS and MSL compliance

Allowable Variation Parameters:

• Flux output (within ±10% tolerance range)
• Lumens/Watt efficiency (performance improvement acceptable)
• Maximum current rating (higher ratings acceptable for design margin)
• Height seated maximum (minor reductions acceptable if within PCB assembly constraints)
• Product status (Active status preferred for new inventory availability)

The SPMWHT541MP5WAVMS4 qualifies as a direct substitute based on matching all mandatory parameters while offering improved performance characteristics in flux output and efficiency metrics.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SPMWHT541MP5WAVMS4

The SPMWHT541MP5WAVMS4 is the qualified substitute for SPMWHT541MD5WAVKS3 based on the following engineering criteria:

Compliance & Status:

• Active product status ensures long-term supply chain continuity, whereas the main part carries "Not For New Designs" designation
• RoHS3 compliance exceeds the RoHS Compliant status of the original part, meeting current regulatory requirements
• Identical MSL rating (2A, 4 Weeks) maintains equivalent moisture handling protocols

Electrical & Optical Compatibility:

• Forward voltage (2.95V) and test current (65mA) are identical, ensuring direct circuit compatibility without redesign
• Color temperature (3000K) and CRI (80) match exactly for lighting application consistency
• Flux output improvement (+6.7%) and efficiency gain (+7.1% lm/W) represent performance enhancement without specification violation
• Maximum current rating increase (150mA to 180mA) provides additional design margin for thermal and current management

Mechanical & Thermal Compatibility:

• Physical footprint (5.00 × 3.00mm) and viewing angle (120°) are identical for PCB layout compatibility
• Reduced height (0.80mm vs. 0.90mm) improves assembly clearance and may reduce solder joint stress
• Thermal resistance (16°C/W) remains constant, maintaining thermal design calculations
• Package lead configuration change (exposed pad to standard leads) requires PCB layout verification for thermal pad connectivity

Inventory & Availability:

• Substitute part inventory (50200 pcs) significantly exceeds main part availability (885 pcs), supporting production continuity

Selection Constraint: PCB designs utilizing the exposed pad thermal connection of SPMWHT541MD5WAVKS3 must verify compatibility with the standard lead configuration of SPMWHT541MP5WAVMS4. Thermal pad layout modifications may be required if the original design relied on exposed pad heat dissipation.

Frequently Asked Questions (FAQ)

Q1: Can SPMWHT541MP5WAVMS4 be used as a direct drop-in replacement for SPMWHT541MD5WAVKS3?

A: Yes, for electrical and optical functionality. The substitute matches all critical parameters: forward voltage (2.95V), test current (65mA), color temperature (3000K), CRI (80), and physical dimensions (5.00 × 3.00mm). However, the package lead configuration differs (standard leads vs. exposed pad). If your PCB design does not utilize the exposed pad for thermal management, direct substitution is valid. If thermal pad connectivity is required, PCB layout modification is necessary.

Q2: What are the performance differences between these two parts?

A: The SPMWHT541MP5WAVMS4 provides measurable improvements: flux output increases from 30lm to 32lm (+6.7%), and efficiency improves from 156 lm/W to 167 lm/W (+7.1%). Maximum current rating increases from 150mA to 180mA. These enhancements represent performance gains without exceeding the original part's specifications, making the substitute suitable for applications requiring the original performance level or better.

Q3: Why is the substitute part marked "Active" while the main part is "Not For New Designs"?

A: Samsung has transitioned the LM561B standard line to the LM561B Plus variant. The "Not For New Designs" status indicates the original part is in end-of-life phase. The substitute's "Active" status confirms ongoing production and supply availability, making it the recommended choice for new designs and ongoing production support.

Q4: Are there any compliance or regulatory differences?

A: The substitute carries RoHS3 compliance versus RoHS Compliant for the main part. RoHS3 represents enhanced environmental compliance standards. Both parts maintain identical MSL (2A, 4 Weeks) moisture sensitivity ratings and ECCN/HTSUS classifications, ensuring equivalent handling and regulatory requirements.

Q5: What is the impact of the 0.10mm height reduction?

A: The substitute's reduced seated height (0.80mm vs. 0.90mm) improves PCB assembly clearance and may reduce solder joint stress during thermal cycling. This is a beneficial characteristic for reliability. Verify that your PCB assembly equipment and design clearances accommodate the lower profile without interference.

Q6: How does the package lead configuration change affect thermal management?

A: The main part features a flat lead exposed pad design for enhanced thermal dissipation. The substitute uses standard flat leads without an exposed pad. If your original design relied on the exposed pad for heat transfer to the PCB, thermal performance may be affected. Evaluate thermal requirements: if the application operates within the 16°C/W thermal resistance specification without requiring the exposed pad connection, substitution is valid. For thermally demanding applications, thermal pad redesign or alternative cooling measures may be necessary.

Q7: Is inventory availability a factor in selecting the substitute?

A: Yes. The substitute has 50200 pcs in stock compared to 885 pcs for the main part. This significant inventory difference supports production continuity and reduces lead time risk, particularly important given the main part's "Not For New Designs" status indicating potential future unavailability.

Q8: Can I use SPMWHT541MP5WAVMS4 in existing designs without PCB modification?

A: Electrical and optical substitution requires no design changes. Mechanical substitution depends on your PCB layout: if the design does not require the exposed pad thermal connection, no modification is needed. If thermal pad connectivity is critical to your thermal design, PCB layout modification is required to accommodate the standard lead configuration.