Equivalent & Substitute Parts for SPMWHT541ML7XAPKS0

Part Overview

The SPMWHT541ML7XAPKS0 is a Samsung Semiconductor LM561C cool white LED (6500K) in 5630 surface mount package format. This component is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. The part delivers 29 lumens at 65mA test current with a forward voltage of 2.75V and 120° viewing angle. Due to its discontinued status, equivalent and substitute parts are necessary for ongoing production support, maintenance applications, and design continuity where this LED specification remains functionally appropriate.

Substiute Parts

SPMWHT541ML7XAPKS0

Samsung Semiconductor, Inc.In Stock: 1125SPMWHT541ML7XAPKS0 Datasheet

Current PartRFQ

SPMWHT541MP7WAP0S0

Samsung Semiconductor, Inc.In Stock: 783SPMWHT541MP7WAP0S0 Datasheet

SimilarRFQ

SPMWHT541ML7XAP0S0

Samsung Semiconductor, Inc.In Stock: 1135SPMWHT541ML7XAP0S0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541ML7XAPKS0 is determined by the following critical parameters:

Primary Matching Criteria:

• Color and CCT: White, Cool 6500K
• Package Type: 4-SMD, Flat Leads (5630)
• Mounting: Surface Mount
• Viewing Angle: 120°
• CRI: 90
• Physical Dimensions: 5.00 × 3.00 mm footprint

Secondary Compatibility Parameters:

• Forward Voltage (Vf): 2.75V nominal (acceptable range: 2.60–2.95V for circuit compatibility)
• Test Current: 65mA (maximum current rating must be ≥65mA)
• Flux Output: 29 lumens nominal (acceptable range: 24–32 lumens for functional equivalence)

Compliance Requirements:

• RoHS Compliant status
• MSL Rating: 2A or better
• Manufacturer: Samsung Semiconductor, Inc.

Parts meeting all primary criteria and maintaining secondary parameter compatibility within specified ranges are classified as direct substitutes. Parts with identical electrical and mechanical specifications but different product status are classified as parametric equivalents.

Parameter Comparison

Engineering Selection Recommendations

SPMWHT541ML7XAP0S0 (Parametric Equivalent - Preferred)

This part is the direct parametric equivalent of the main part number. It maintains identical electrical specifications (2.75V Vf, 29 lumens, 65mA test current, 200mA maximum), mechanical dimensions, thermal characteristics (12°C/W), and compliance certifications. The critical distinction is product status: SPMWHT541ML7XAP0S0 is classified as "Active," ensuring long-term availability and manufacturing support. This part is suitable for all applications where SPMWHT541ML7XAPKS0 was originally specified. Selection of this equivalent eliminates obsolescence risk while maintaining full functional and physical compatibility.

SPMWHT541MP7WAP0S0 (Substitute - Alternative)

This part is classified as a substitute rather than a parametric equivalent due to specification variations within acceptable ranges. The LM561B Plus series operates at a higher forward voltage (2.95V versus 2.75V) and delivers slightly lower flux output (27 lumens versus 29 lumens). The maximum current rating is reduced to 180mA (from 200mA), and thermal resistance is higher at 15°C/W (from 12°C/W). These differences remain within functional compatibility for applications where the original part was used, provided circuit design accommodates the 0.20V voltage increase and the 2-lumen reduction in output. The LM561B Plus series is also classified as "Active," providing production continuity. This substitute is appropriate for applications with design flexibility regarding forward voltage and output tolerance.

Selection Criteria:

• For direct replacement with zero specification change: Select SPMWHT541ML7XAP0S0
• For applications tolerating ±0.20V forward voltage variation and ±2 lumen output variation: Select SPMWHT541MP7WAP0S0
• All candidates maintain RoHS compliance, 2A MSL rating, and 120° viewing angle specification
• All candidates are available in Tape & Reel packaging format

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541ML7XAP0S0 be used as a direct replacement for SPMWHT541ML7XAPKS0?

A: Yes. SPMWHT541ML7XAP0S0 is a parametric equivalent with identical electrical and mechanical specifications. It maintains the same forward voltage (2.75V), flux output (29 lumens), test current (65mA), maximum current (200mA), thermal resistance (12°C/W), and package dimensions. The only difference is product status: the equivalent is Active, while the original is Not For New Designs. No circuit modifications are required.

Q: What is the difference between a parametric equivalent and a substitute?

A: A parametric equivalent maintains all electrical and mechanical specifications within the same tolerance ranges. A substitute meets the primary functional requirements (color, CCT, package, viewing angle, CRI) but may have variations in secondary parameters (forward voltage, flux output, maximum current, thermal resistance) that remain within acceptable operational ranges. Both are compatible with the original application, but substitutes may require circuit design review.

Q: Can SPMWHT541MP7WAP0S0 be used in place of SPMWHT541ML7XAPKS0?

A: SPMWHT541MP7WAP0S0 is a functional substitute with compatible color, CCT, package, and viewing angle. However, it operates at 2.95V forward voltage (0.20V higher) and delivers 27 lumens (2 lumens lower) compared to the original 2.75V and 29 lumens. The maximum current rating is also reduced to 180mA. These variations are within acceptable ranges for most applications, but circuit design must accommodate the voltage increase and output reduction. Verification of circuit tolerance is required before selection.

Q: Are all three parts physically identical?

A: Yes. All three parts share identical physical dimensions (5.00 × 3.00 × 0.80 mm), 4-SMD flat lead package format, and 5630 supplier device package designation. They are mechanically interchangeable on PCB layouts. Electrical differences do not affect physical mounting or footprint compatibility.

Q: What is the significance of the "Not For New Designs" status?

A: "Not For New Designs" indicates that Samsung Semiconductor has discontinued this part for new product development. Existing inventory remains available for support of legacy products and ongoing production. For new designs or long-term production commitments, selection of an Active-status equivalent (SPMWHT541ML7XAP0S0) or substitute (SPMWHT541MP7WAP0S0) is recommended to ensure sustained supply chain availability.

Q: Do all parts meet RoHS compliance requirements?

A: Yes. SPMWHT541ML7XAPKS0, SPMWHT541ML7XAP0S0, and SPMWHT541MP7WAP0S0 are all RoHS Compliant. All three parts carry MSL Rating 2A (4 Weeks), indicating identical moisture sensitivity handling requirements.

Q: What is the thermal resistance difference between the main part and the substitute?

A: The main part (SPMWHT541ML7XAPKS0) and its parametric equivalent (SPMWHT541ML7XAP0S0) both have thermal resistance of 12°C/W. The substitute (SPMWHT541MP7WAP0S0) has thermal resistance of 15°C/W, representing a 3°C/W increase. This difference affects heat dissipation characteristics and may impact thermal performance in high-density LED arrays or elevated ambient temperature environments. Circuit thermal analysis is recommended if this substitute is selected for applications with tight thermal margins.

Q: Can these parts be mixed in the same production batch?

A: All three parts are mechanically and functionally compatible and can coexist in the same assembly. However, mixing parts with different forward voltages (2.75V versus 2.95V) in series-connected LED strings will result in uneven voltage distribution and potential brightness variation. For consistent performance, use a single part number per design or implement individual current-limiting circuits for each LED.