SPMWHT541MD5WAVHSC LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAVHSC is a Samsung Semiconductor LM561B series warm white LED designed for surface mount lighting applications. This component operates at 3000K color temperature with a forward voltage of 2.95V and test current of 65mA, delivering 31 lumens at 25°C. The part is classified as "Not For New Designs," indicating it has been superseded in Samsung's product portfolio. Organizations requiring this LED for maintenance, repair, or legacy system support should evaluate available substitute components that maintain electrical and mechanical compatibility.

Substiute Parts

SPMWHT541MD5WAVHSC

Samsung Semiconductor, Inc.In Stock: 1094SPMWHT541MD5WAVHSC Datasheet

Current PartRFQ

SPMWHT541MP5WAVMS4

Samsung Semiconductor, Inc.In Stock: 50283SPMWHT541MP5WAVMS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAVHSC is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Series family: LM561B or LM561B Plus
• Color specification: White, Warm
• Correlated Color Temperature (CCT): 3000K
• Forward voltage (Vf): 2.95V nominal
• Test current: 65mA
• Viewing angle: 120°
• Package type: 4-SMD surface mount
• Supplier device package: 5630
• Physical dimensions: 5.00mm × 3.00mm
• Thermal resistance: 16°C/W

Allowable Variation Parameters:

• Flux output: Within ±10% of specified range (29–33 lm)
• Lumens/Watt efficiency: Higher values acceptable
• Maximum current rating: Equal or higher
• Height seated: Equal or lower
• CRI: Equal or higher
• Product status: Active preferred over obsolete
• RoHS compliance: ROHS3 acceptable as upgrade from RoHS Compliant

The SPMWHT541MP5WAVMS4 qualifies as a direct substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP5WAVMS4

The SPMWHT541MP5WAVMS4 is the qualified substitute for SPMWHT541MD5WAVHSC applications. Selection rationale:

1. Electrical Compatibility: Identical forward voltage (2.95V) and test current (65mA) ensure direct circuit compatibility without redesign of current-limiting resistors or power supply parameters.

2. Optical Performance: Flux output of 32 lm falls within the acceptable tolerance band (31–33 lm). Improved lumens/watt efficiency (167 vs. 162 lm/W) represents a performance enhancement without functional deviation.

3. Mechanical Fit: Identical footprint (5.00 × 3.00mm) and 5630 package designation confirm PCB layout compatibility. Reduced seated height (0.80mm vs. 0.90mm) provides additional clearance margin.

4. Compliance Status: ROHS3 certification supersedes the original RoHS Compliant designation, meeting current regulatory requirements. Identical MSL rating (2A, 4 Weeks) maintains handling and storage protocols.

5. Product Lifecycle: Active product status ensures long-term availability and supply chain stability compared to the obsolete main part.

6. Thermal Characteristics: Matching thermal resistance (16°C/W) preserves thermal management calculations and junction temperature predictions.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAVMS4 be used as a direct drop-in replacement for SPMWHT541MD5WAVHSC?

A: Yes. Electrical parameters (Vf, test current, maximum current), optical specifications (color, CCT, CRI), mechanical dimensions, and thermal properties are compatible. No circuit modifications are required.

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

A: Both refer to 4-SMD surface mount configurations with identical external dimensions and electrical performance. The package designation variation reflects manufacturing process differences that do not affect functional compatibility or PCB assembly procedures.

Q: Is the higher maximum current rating (180mA vs. 150mA) of the substitute part a concern?

A: No. Maximum current rating indicates the component's current-handling capability. A higher rating provides additional operational margin and does not affect performance when operated at the specified test current of 65mA.

Q: Does the improved lumens/watt efficiency (167 vs. 162 lm/W) require circuit adjustments?

A: No. Efficiency improvement is a performance benefit. When operated at identical voltage and current, the substitute produces slightly higher luminous output (32 lm vs. 31 lm) within acceptable tolerance, requiring no design changes.

Q: Are there any storage or handling differences between the main part and substitute?

A: No. Both components share identical Moisture Sensitivity Level (2A, 4 Weeks), requiring the same storage conditions, handling procedures, and reflow profiles.

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

A: This designation indicates Samsung has transitioned the LM561B series to the LM561B Plus variant. The SPMWHT541MP5WAVMS4 represents the current production equivalent, ensuring access to active inventory and ongoing manufacturer support.

Q: Can the substitute part be used in applications requiring the exact original part number?

A: Substitution eligibility depends on application specifications. If the design specifies SPMWHT541MD5WAVHSC exclusively, engineering review is required. If specifications define performance parameters (voltage, current, color, lumens, package), the substitute meets all stated requirements.