SPMWHT541ML5XAUGS0 Equivalent & Substitute Parts

Part Overview

The SPMWHT541ML5XAUGS0 is a Samsung Semiconductor LM561C warm white LED in 5630 package format, rated for 3500K color temperature with 65mA test current and 2.75V forward voltage. This component is classified as Not For New Designs, indicating it has reached end-of-life status in Samsung's product portfolio. Identification of equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design transitions to active product lines that maintain compatible electrical and mechanical specifications.

Substiute Parts

SPMWHT541ML5XAUGS0

Samsung Semiconductor, Inc.In Stock: 852SPMWHT541ML5XAUGS0 Datasheet

Current PartRFQ

SPMWHT541MP5WAU0S5

Samsung Semiconductor, Inc.In Stock: 3242SPMWHT541MP5WAU0S5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541ML5XAUGS0 is determined by the following mandatory parameters:

Primary Compatibility Criteria:

• Color and CCT: White, Warm 3500K (exact match required)
• Package Type: 4-SMD, Flat Leads in 5630 form factor (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Viewing Angle: 120° (exact match required)
• CRI: 80 (exact match required)

Electrical Operating Range:

• Forward Voltage (Vf): 2.75V nominal (substitutes must operate within the same circuit voltage design)
• Test Current: 65mA (substitutes must support this current level)
• Maximum Current: 200mA (substitutes must not exceed this rating in the application)

Physical Compatibility:

• Dimensions: 5.00mm L × 3.00mm W × 0.80mm H maximum seated height (exact match required for PCB layout and thermal management)

The identified substitute part SPMWHT541MP5WAU0S5 shares all primary compatibility criteria and operates within the established electrical parameters, though with minor variations in forward voltage (2.95V vs. 2.75V) and thermal resistance (15°C/W vs. 12°C/W). These variations remain within acceptable design tolerances for warm white LED applications in the 3500K spectrum.

Parameter Comparison

Engineering Selection Recommendations

For Existing Production Support: The SPMWHT541MP5WAU0S5 substitute is suitable for direct replacement in applications currently using SPMWHT541ML5XAUGS0, provided the following conditions are met:

1. Circuit design accommodates the +0.20V forward voltage increase (2.75V to 2.95V). This voltage differential is typical in LED driver circuits with current regulation and does not require redesign in standard constant-current applications.

2. Thermal management design accepts the +3°C/W increase in thermal resistance. Applications with adequate PCB thermal copper area and airflow will experience negligible temperature rise impact.

3. Maximum current rating of 180mA (vs. 200mA) is acceptable for the application's operating current envelope. If the design operates at or near 200mA, current limiting must be verified to remain below 180mA.

4. The SPMWHT541MP5WAU0S5 holds Active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment compared to the Not For New Designs status of the main part.

For New Design Transitions: The SPMWHT541MP5WAU0S5 is the recommended path forward for new designs requiring warm white 3500K LEDs in 5630 package format, as it maintains active production status and meets current RoHS standards.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAU0S5 be used as a direct drop-in replacement for SPMWHT541ML5XAUGS0?

A: Yes, for applications where the circuit design operates at constant current. The 4-SMD 5630 package dimensions are identical, and all primary optical and mechanical parameters match. The forward voltage increase of 0.20V is absorbed by standard LED driver circuits. Verify that your application's maximum current does not exceed 180mA.

Q: What is the impact of the 196 lm/W to 177 lm/W efficiency difference?

A: At the 65mA test current, the main part produces 35lm while the substitute produces 34lm—a 1lm difference. In practical applications, this represents approximately 3% lower light output. For applications where absolute luminous output is critical, system-level compensation through increased current or additional LEDs may be required.

Q: Why does the substitute have a lower maximum current rating (180mA vs. 200mA)?

A: The LM561B Plus series has a different die and package thermal design compared to the LM561C. The 180mA maximum rating reflects the thermal limits of the LM561B Plus architecture. Applications operating at 65mA test current are unaffected. Only designs pushing toward 200mA maximum current require verification.

Q: Are there any PCB layout changes required?

A: No. Both parts use identical 5630 package dimensions (5.00mm × 3.00mm × 0.80mm maximum height) and 4-SMD flat lead configuration. Existing PCB layouts require no modification.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: ROHS3 represents the updated RoHS 2.0 directive with additional restricted substances. The substitute's ROHS3 compliance ensures it meets current and future regulatory requirements. Both parts are compliant with their respective standards.

Q: Can I use multiple substitute parts from the SPMWHT541 base product family?

A: The substitute list for SPMWHT541MP5WAU0S5 includes additional variants (SPMWHT541ML5XAV0S5, SPMWHT541ML5XAUMS5, SPMWHT541MP5WAUUS5, SPMWHT541MP5WAVMS5, SPMWHT541MP5WAVUS5). These represent different packaging configurations and regional variants. Verify that any alternative selection maintains the 3500K CCT, 120° viewing angle, and 5630 package format required for your application.

Q: What is the moisture sensitivity level impact on storage and handling?

A: Both parts carry MSL 2A rating with 4-week floor life. This standard rating applies to typical surface mount LED components. Storage in dry conditions (below 30% relative humidity) or use of desiccant packaging extends usable life. No special handling beyond standard SMD practices is required.