SPMWHT541MD5WAQMSC LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAQMSC is a Samsung Semiconductor LM561B series cool white LED with a color temperature of 5700K, designed for surface mount applications in 5630 package format. This component delivers 33 lumens at 65mA forward current with a typical forward voltage of 2.95V and a 120° viewing angle. The part is marked as "Not For New Designs," indicating it has been superseded in Samsung's product portfolio. For ongoing production requirements or maintenance applications, equivalent substitute parts with compatible electrical and mechanical specifications are available.

Substiute Parts

SPMWHT541MD5WAQMSC

Samsung Semiconductor, Inc.In Stock: 979SPMWHT541MD5WAQMSC Datasheet

Current PartRFQ

SPMWHT541MP5WAQKS4

Samsung Semiconductor, Inc.In Stock: 16206SPMWHT541MP5WAQKS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD5WAQMSC is determined by strict alignment of the following critical parameters:

Electrical Compatibility:

• Color and correlated color temperature (CCT): White, Cool 5700K
• Forward voltage at test current: 2.95V (typical)
• Test current: 65mA
• Luminous flux range: 31–35 lm at 25°C
• Color Rendering Index (CRI): 80
• Viewing angle: 120°

Mechanical Compatibility:

• Package type: 4-SMD, 5630 form factor
• Mounting: Surface mount
• Package dimensions: 5.00 × 3.00 mm
• Height constraint: ≤0.90 mm seated

Environmental & Compliance:

• RoHS compliance status
• Moisture Sensitivity Level: 2A (4 Weeks)
• ECCN and HTSUS classifications

The substitute part SPMWHT541MP5WAQKS4 meets all electrical and mechanical compatibility criteria while offering improved performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

For Existing Designs (Maintenance & Repair): The SPMWHT541MD5WAQMSC remains suitable for replacement applications where inventory is depleted. The part maintains RoHS compliance and meets all specified electrical and mechanical parameters for direct substitution in existing assemblies.

For New Production: The SPMWHT541MP5WAQKS4 is the recommended selection. This substitute part carries Active product status, ensuring long-term availability and supply chain stability. The LM561B Plus variant delivers improved luminous efficiency (177 lm/W versus 172 lm/W) and enhanced thermal performance (15°C/W versus 16°C/W) while maintaining identical electrical characteristics and package footprint. The higher maximum current rating (180mA versus 150mA) provides additional design margin. ROHS3 compliance exceeds the RoHS Compliant status of the original part.

Compatibility Verification: Both parts share identical forward voltage (2.95V), test current (65mA), color temperature (5700K), CRI (80), and viewing angle (120°). Luminous flux specifications overlap within acceptable tolerance ranges. Package dimensions and mounting type are compatible. Height reduction in the substitute part (0.80 mm versus 0.90 mm) presents no clearance issues for existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAQKS4 be used as a direct replacement for SPMWHT541MD5WAQMSC in existing assemblies?

A: Yes. Both parts share identical forward voltage (2.95V), test current (65mA), color temperature (5700K), CRI (80), viewing angle (120°), and package footprint (5.00 × 3.00 mm). The substitute part's lower height (0.80 mm versus 0.90 mm) and improved thermal resistance present no compatibility issues. Electrical circuit behavior remains unchanged.

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

A: Both designations refer to 4-SMD surface mount packages with 5630 form factor. The primary difference is pad configuration on the component substrate. Both are compatible with standard reflow soldering processes and PCB layouts designed for 5630 package LEDs. Thermal and electrical performance are equivalent.

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

A: This designation indicates that Samsung Semiconductor has transitioned this product to end-of-life status and recommends using newer alternatives for new product development. The LM561B Plus series (SPMWHT541MP5WAQKS4) represents the active replacement with improved specifications and guaranteed long-term availability.

Q: Are there any thermal management differences between these parts?

A: The substitute part exhibits superior thermal performance with 15°C/W thermal resistance compared to 16°C/W in the main part. This represents a 6% improvement in heat dissipation efficiency. Both parts operate within the same MSL 2A moisture sensitivity classification and require identical handling procedures.

Q: What is the luminous flux tolerance range for each part?

A: The main part (SPMWHT541MD5WAQMSC) specifies 33 lm nominal with a tolerance range of 31–35 lm at 25°C and 65mA. The substitute part (SPMWHT541MP5WAQKS4) specifies 34 lm nominal with a tolerance range of 33–35 lm. Both fall within acceptable ranges for cool white 5700K LED applications. The substitute part exhibits tighter tolerance control.

Q: Can these parts be used interchangeably in high-current applications?

A: The substitute part supports higher maximum current (180mA versus 150mA), providing greater operational margin. However, both parts are rated for 65mA test current. Applications requiring sustained operation above 150mA should use the substitute part exclusively. Standard circuit designs operating at or below 65mA show no functional difference.

Q: What compliance certifications apply to both parts?

A: Both parts carry RoHS compliance certifications. The main part is RoHS Compliant; the substitute part is ROHS3 Compliant, representing a more recent regulatory standard. Both parts are classified under ECCN EAR99 and HTSUS 8541.41.0000. MSL rating is identical at 2A (4 Weeks) for both.