MX3SWT-A1-R250-000AF5 Equivalent & Substitute Parts

Part Overview

The MX3SWT-A1-R250-000AF5 is a CreeLED XLamp® MX-3S neutral white LED (4250K) in a 2-SMD surface mount package with exposed pad. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The MX-3S series has been superseded by newer generations, requiring engineers to evaluate compatible substitutes that maintain electrical and mechanical compatibility within the application constraints.

Substiute Parts

MX3SWT-A1-R250-000AF5

CreeLED, Inc.In Stock: 1030MX3SWT-A1-R250-000AF5 Datasheet

Current PartRFQ

MX3AWT-A1-R250-000AF5

CreeLED, Inc.In Stock: 998MX3AWT-A1-R250-000AF5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MX3SWT-A1-R250-000AF5 is evaluated based on the following critical parameters:

Electrical Compatibility Criteria:

• Color and correlated color temperature (CCT): Must match 4250K neutral white
• Color Rendering Index (CRI): Must maintain 80 (Typ) or equivalent
• Viewing angle: Must support 120° minimum
• Flux output: Must fall within or near the 87–94 lm range at specified test conditions
• Thermal characteristics: Package thermal resistance of 11°C/W

Mechanical Compatibility Criteria:

• Package type: 2-SMD, Gull Wing Exposed Pad configuration
• Physical dimensions: 5.00 mm × 5.00 mm footprint
• Height: 1.48 mm maximum seated height
• Surface mount compatibility

Regulatory & Supply Criteria:

• REACH compliance status
• ECCN classification (EAR99)
• Moisture sensitivity level (MSL 2A)
• Product status and availability

The MX3AWT-A1-R250-000AF5 qualifies as a substitute based on matching color temperature, CRI, package geometry, and thermal characteristics. However, significant differences in forward voltage and test current exist and must be evaluated within the specific circuit design.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The MX3SWT-A1-R250-000AF5 is obsolete. The MX3AWT-A1-R250-000AF5 is active and available, providing supply chain continuity and ongoing manufacturer support.

Regulatory Compliance: Both parts maintain REACH Unaffected status and EAR99 classification. The substitute part carries explicit RoHS Compliance certification, which may be required for new designs or updated procurement specifications.

Electrical Performance Trade-offs: The substitute operates at significantly lower forward voltage (3.7V vs. 10.7V) and higher test current (350mA vs. 115mA). Both deliver equivalent luminous flux (91 lm) and color characteristics (4250K, CRI 80). The efficiency difference (70 lm/W vs. 74 lm/W) is marginal. Circuit redesign is required to accommodate the different voltage and current requirements.

Mechanical and Thermal Compatibility: Both parts share identical package geometry, footprint, and thermal resistance, ensuring direct PCB layout compatibility without modification.

Frequently Asked Questions (FAQ)

Q: Can the MX3AWT-A1-R250-000AF5 be used as a direct drop-in replacement for the MX3SWT-A1-R250-000AF5?

A: No. While both parts share identical package geometry and thermal characteristics, the forward voltage and test current differ significantly (10.7V/115mA vs. 3.7V/350mA). The circuit's current-limiting resistor or driver must be recalculated to accommodate the lower voltage and higher current requirements of the substitute.

Q: Are the color and light output characteristics identical?

A: Yes. Both parts deliver 4250K neutral white light with CRI 80 (Typ) and equivalent luminous flux of 91 lm at their respective test currents. Viewing angle is 120° for both.

Q: What is the impact of the efficiency difference (74 lm/W vs. 70 lm/W)?

A: The 4 lm/W difference represents approximately 5% lower efficiency in the substitute. At equivalent light output (91 lm), the substitute dissipates slightly more power. Thermal management design should account for this marginal increase.

Q: Are both parts suitable for the same moisture-sensitive handling procedures?

A: Yes. Both parts carry MSL 2A (4 Weeks) classification, requiring identical moisture control and storage protocols during assembly.

Q: Does the substitute part offer any regulatory advantages?

A: The MX3AWT-A1-R250-000AF5 carries explicit RoHS Compliance certification, whereas the main part does not specify RoHS status. For applications requiring RoHS compliance documentation, the substitute provides this assurance.

Q: What is the primary reason to consider substitution?

A: The MX3SWT-A1-R250-000AF5 is obsolete. The MX3AWT-A1-R250-000AF5 is an active product from the same manufacturer with equivalent optical and thermal performance, ensuring long-term supply availability and manufacturer support.