SPMWHT541MD5WAWMSC LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAWMSC is a Samsung Semiconductor LM561B series warm white LED designed for surface mount applications. This component delivers 30 lumens at 65mA test current with a color temperature of 2700K and a Color Rendering Index (CRI) of 80. The device is packaged in a 4-SMD, Flat Lead Exposed Pad configuration (5630 package) with a 120° viewing angle.

The SPMWHT541MD5WAWMSC carries a "Not For New Designs" product status, indicating Samsung has transitioned this model to end-of-life. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this LED specification remains functionally appropriate.

Substiute Parts

SPMWHT541MD5WAWMSC

Samsung Semiconductor, Inc.In Stock: 1135SPMWHT541MD5WAWMSC Datasheet

Current PartRFQ

SPMWHT541MP5WAWMS4

Samsung Semiconductor, Inc.In Stock: 26064SPMWHT541MP5WAWMS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD5WAWMSC is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Series family: LM561B or LM561B Plus (same base product number SPMWHT541)
• Color specification: White, Warm
• Color temperature: 2700K
• CRI: 80 or higher
• Viewing angle: 120°
• Package type: 4-SMD surface mount configuration
• Supplier device package: 5630
• Mounting compatibility: Surface mount, flat lead design
• Compliance: RoHS Compliant, MSL 2A

Secondary Compatibility Parameters:

• Forward voltage (Vf): 2.95V nominal (acceptable range: 2.85V–3.05V)
• Test current: 65mA standard operating point
• Flux output @ 25°C: 28–32 lm range at 65mA
• Thermal resistance: 15–16°C/W range

The SPMWHT541MP5WAWMS4 qualifies as a direct substitute based on matching all primary criteria and maintaining compatibility within secondary parameter tolerances.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SPMWHT541MP5WAWMS4

The SPMWHT541MP5WAWMS4 is the direct substitute for SPMWHT541MD5WAWMSC applications. This recommendation is based on the following engineering factors:

1. Product Status Alignment: The substitute part carries "Active" product status, ensuring continued availability and manufacturing support. The main part is designated "Not For New Designs," making the substitute the appropriate choice for ongoing production.

2. Electrical Compatibility: Both parts operate at identical forward voltage (2.95V) and test current (65mA). The substitute's higher maximum current rating (180mA vs. 150mA) and improved efficiency (162 lm/W vs. 156 lm/W) provide additional design margin without requiring circuit modification.

3. Optical Specifications: Color temperature (2700K), CRI (80), and viewing angle (120°) are identical. Luminous flux output at the standard 65mA test point is within the acceptable range (31 lm vs. 30 lm nominal), with both parts meeting the 28–32 lm specification window.

4. Mechanical Compatibility: Both parts use identical 5630 package configuration with 4-SMD surface mount design. The substitute's slightly larger length (5.60mm vs. 5.00mm) and lower profile (0.80mm vs. 0.90mm) are compatible with standard PCB layouts designed for the main part.

5. Thermal Performance: The substitute exhibits superior thermal resistance (15°C/W vs. 16°C/W), supporting improved heat dissipation in thermal-constrained applications.

6. Regulatory Compliance: Both parts are RoHS Compliant with identical MSL rating (2A, 4 Weeks), ensuring compliance with environmental and moisture handling requirements.

Inventory Consideration: The substitute part has significantly higher inventory availability (25,996 pcs vs. 1,064 pcs), supporting supply chain continuity.

Frequently Asked Questions (FAQ)

Q1: Can SPMWHT541MP5WAWMS4 be used as a direct replacement for SPMWHT541MD5WAWMSC without PCB modification?

A: Yes. Both parts share identical electrical specifications (2.95V forward voltage, 65mA test current), optical properties (2700K, 80 CRI, 120° viewing angle), and package footprint (5630, 4-SMD surface mount). The substitute's slightly larger length (5.60mm vs. 5.00mm) and lower profile (0.80mm vs. 0.90mm) are compatible with standard PCB layouts. No circuit or layout changes are required.

Q2: What is the difference between the LM561B and LM561B Plus series?

A: The LM561B Plus (SPMWHT541MP5WAWMS4) represents an improved generation within the same base product family (SPMWHT541). The Plus variant delivers higher luminous efficiency (162 lm/W vs. 156 lm/W), higher maximum current rating (180mA vs. 150mA), and improved thermal resistance (15°C/W vs. 16°C/W). All optical and electrical operating parameters at the standard 65mA test point remain compatible.

Q3: Are there any thermal management differences between these parts?

A: The substitute part exhibits superior thermal performance with thermal resistance of 15°C/W compared to 16°C/W for the main part. This 1°C/W improvement supports better heat dissipation. Both parts are suitable for standard surface mount thermal management practices. No additional thermal design changes are necessary.

Q4: What is the inventory status of these parts?

A: The main part (SPMWHT541MD5WAWMSC) has 1,064 pcs in stock with "Not For New Designs" status, indicating limited future availability. The substitute part (SPMWHT541MP5WAWMS4) has 25,996 pcs in stock with "Active" product status, ensuring reliable long-term supply.

Q5: Do both parts meet the same compliance and moisture sensitivity requirements?

A: Yes. Both parts are RoHS Compliant and carry identical Moisture Sensitivity Level (MSL) rating of 2A with 4-week floor life. Handling, storage, and reflow procedures are identical for both components.

Q6: What is the luminous flux difference at standard operating current?

A: At the 65mA test current, the main part delivers 30 lm (28–32 lm range) while the substitute delivers 31 lm (30–32 lm range). Both values fall within acceptable tolerance windows for warm white 2700K LEDs in this package class. The 1 lm difference is within normal manufacturing variation and does not affect system-level performance in typical lighting applications.

Q7: Can the substitute part handle higher current levels than the main part?

A: Yes. The substitute part is rated for maximum current of 180mA compared to 150mA for the main part. However, both parts are designed to operate at the standard 65mA test current. The higher maximum rating on the substitute provides additional design margin and thermal headroom but does not require changes to existing circuit designs operating at 65mA.

Q8: Are there any package dimension concerns for PCB assembly?

A: The substitute part is 0.60mm longer (5.60mm vs. 5.00mm) and 0.10mm lower in profile (0.80mm vs. 0.90mm). These dimensional differences are within standard PCB layout tolerances for 5630 package components. Existing pick-and-place programs and reflow profiles require no modification.