SPMWHT541ML5XATNS0 Equivalent & Substitute Parts

Part Overview

The SPMWHT541ML5XATNS0 is a Samsung Semiconductor LM561C series neutral white LED (4000K) designed for surface mount lighting applications. This component delivers 36 lumens at 65mA with a forward voltage of 2.75V and features a 120° viewing angle in a compact 5630 package format. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design transitions to active product lines.

Substiute Parts

SPMWHT541ML5XATNS0

Samsung Semiconductor, Inc.In Stock: 866SPMWHT541ML5XATNS0 Datasheet

Current PartRFQ

SPMWHT541MP5WATMS4

Samsung Semiconductor, Inc.In Stock: 600211SPMWHT541MP5WATMS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541ML5XATNS0 is determined by the following critical parameters:

Primary Matching Criteria:

• Color and CCT: White, Neutral 4000K
• Package Type: 4-SMD, Flat Leads (5630 form factor)
• Mounting Type: Surface Mount
• Viewing Angle: 120°
• CRI: 80 or higher
• Dimensions: 5.00mm × 3.00mm × 0.80mm maximum height
• Moisture Sensitivity Level: 2A or better
• RoHS Compliance: Required

Secondary Compatibility Factors:

• Forward Voltage (Vf): Acceptable range 2.75V to 3.00V for circuit compatibility
• Test Current: 65mA nominal operation
• Maximum Current Rating: Minimum 180mA
• Thermal Resistance: 12°C/W to 16°C/W

The substitute part SPMWHT541MP5WATMS4 meets all primary matching criteria and operates within acceptable secondary compatibility ranges, making it a valid electrical and mechanical equivalent for the SPMWHT541ML5XATNS0.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SPMWHT541MP5WATMS4

The SPMWHT541MP5WATMS4 is the qualified substitute for SPMWHT541ML5XATNS0 based on the following engineering factors:

1. Product Status Alignment: The substitute is classified as "Active," providing long-term availability and production continuity compared to the main part's "Not For New Designs" status.

2. Compliance Certification: Both parts meet RoHS requirements. The substitute carries ROHS3 certification, which exceeds the main part's RoHS Compliant designation, ensuring compatibility with current regulatory standards.

3. Package and Mechanical Compatibility: Identical 5630 package format, 4-SMD flat lead configuration, and physical dimensions (5.00mm × 3.00mm × 0.80mm) ensure direct PCB footprint compatibility without layout modifications.

4. Electrical Parameter Tolerance: Forward voltage difference of 0.20V (2.75V vs. 2.95V) falls within acceptable circuit design margins for most LED driver topologies. Test current remains constant at 65mA.

5. Performance Trade-offs: The substitute exhibits 8% lower luminous flux (33 lm vs. 36 lm) and 14% lower efficiency (172 lm/W vs. 201 lm/W). These differences are acceptable for applications where the main part's end-of-life status necessitates substitution. Maximum current rating is 20mA lower (180mA vs. 200mA); verify that circuit design does not exceed this limit.

6. Thermal Characteristics: Thermal resistance increases from 12°C/W to 16°C/W. This 33% increase is acceptable for most surface mount applications; verify thermal management in high-ambient-temperature environments.

7. Moisture Sensitivity: Identical MSL 2A rating (4 weeks) ensures equivalent handling and storage requirements.

Selection Criteria Summary: Use SPMWHT541MP5WATMS4 when SPMWHT541ML5XATNS0 is unavailable. Confirm that the 8% flux reduction and 14% efficiency decrease do not violate application brightness or power consumption specifications. Verify maximum current design margin against the 180mA limit.

Frequently Asked Questions (FAQ)

Q1: Can SPMWHT541MP5WATMS4 be used as a direct drop-in replacement for SPMWHT541ML5XATNS0?

A: Yes, for most applications. Both parts share identical package geometry (5630, 4-SMD flat leads), physical dimensions (5.00mm × 3.00mm × 0.80mm), viewing angle (120°), and CRI (80). PCB footprints are identical. However, verify that your circuit design accommodates the 0.20V higher forward voltage (2.95V vs. 2.75V) and the 20mA lower maximum current rating (180mA vs. 200mA).

Q2: What is the impact of the 8% lower luminous flux in the substitute part?

A: The substitute delivers 33 lumens versus 36 lumens at 65mA test current. This 3-lumen reduction represents an 8% decrease in light output. For applications with tight brightness specifications, measure the impact on system-level illumination. For general lighting applications with design margin, this difference is typically acceptable.

Q3: Why is the forward voltage higher in the substitute part?

A: The SPMWHT541MP5WATMS4 (LM561B Plus series) operates at 2.95V compared to 2.75V for the SPMWHT541ML5XATNS0 (LM561C series). This 0.20V difference reflects different LED chip and phosphor technology between series generations. Most LED driver circuits accommodate this voltage variation through current regulation. Verify your power supply and current-limiting circuit can operate at the higher voltage without exceeding maximum ratings.

Q4: Are there any storage or handling differences between these parts?

A: No. Both parts carry identical MSL 2A ratings (4 weeks maximum exposure at 30°C / 60% RH). Use the same moisture control procedures, desiccant storage, and bake-out protocols for both components.

Q5: Which part should be specified for new designs?

A: Specify SPMWHT541MP5WATMS4. The main part (SPMWHT541ML5XATNS0) is marked "Not For New Designs," indicating end-of-life status. The substitute is classified "Active" and represents the current production equivalent within the Samsung LM561 family.

Q6: What is the thermal performance difference, and does it matter?

A: The substitute has 4°C/W higher thermal resistance (16°C/W vs. 12°C/W). In high-ambient-temperature applications or densely packed PCB layouts, this may result in slightly higher junction temperatures. For typical surface mount applications with standard thermal management, this difference is acceptable. Perform thermal analysis if operating above 50°C ambient temperature.

Q7: Are both parts RoHS compliant?

A: Yes. SPMWHT541ML5XATNS0 is RoHS Compliant. SPMWHT541MP5WATMS4 is ROHS3 Compliant, which represents a stricter standard. Both are suitable for applications requiring RoHS certification.

Q8: Can I use the substitute in existing production inventory without PCB redesign?

A: Yes. Identical package format, footprint, and physical dimensions eliminate the need for PCB layout changes. However, verify that your LED driver circuit and power supply can accommodate the 0.20V higher forward voltage and confirm that the 8% lower flux output meets your brightness requirements.