Equivalent & Substitute Parts for MX3SWT-A1-0000-000AF5

Part Overview

The Cree MX3SWT-A1-0000-000AF5 is an XLamp® MX-3S neutral white LED (4250K) designed for surface mount applications requiring high color rendering and compact form factor. This part is classified as obsolete, making substitute identification essential for ongoing production and design continuity. The MX-3S series has been superseded by newer XLamp® generations, necessitating evaluation of compatible alternatives that maintain functional equivalence within system constraints.

Substiute Parts

MX3SWT-A1-0000-000AF5

CreeLED, Inc.In Stock: 1109MX3SWT-A1-0000-000AF5 Datasheet

Current PartRFQ

MX6AWT-A1-0000-000CZ5

CreeLED, Inc.In Stock: 1024MX6AWT-A1-0000-000CZ5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MX3SWT-A1-0000-000AF5 is evaluated based on the following criteria derived from the provided specifications:

Mandatory Matching Parameters:

• Color and CCT: White, Neutral 4250K (exact match required for color consistency)
• Viewing Angle: 120° (optical performance requirement)
• Package / Case: 2-SMD, Gull Wing Exposed Pad (mechanical and thermal interface compatibility)
• Physical Dimensions: 5.00 mm × 5.00 mm footprint (PCB layout constraint)
• Height - Seated: 1.48 mm maximum (clearance and assembly compatibility)
• Moisture Sensitivity Level: 2A (4 Weeks) (handling and storage requirements)

Allowable Variation Parameters:

• Forward Voltage (Vf): Substitutes may differ if the power supply design accommodates the new voltage requirement
• Test Current and Maximum Current: Substitutes may operate at different current levels if the application circuit is redesigned accordingly
• Flux Output: Substitutes may provide higher or lower lumen output depending on application brightness requirements
• Lumens/Watt Efficiency: Substitutes may offer improved efficiency
• Thermal Resistance: Substitutes may have different thermal characteristics if thermal management is adjusted
• Product Status: Active substitutes are preferred over obsolete parts for long-term availability

The identified substitute MX6AWT-A1-0000-000CZ5 matches all mandatory parameters and represents an active product from the same manufacturer family.

Parameter Comparison

Engineering Selection Recommendations

The MX6AWT-A1-0000-000CZ5 is a direct substitute for the obsolete MX3SWT-A1-0000-000AF5 based on matching color temperature, viewing angle, package geometry, and physical dimensions. Both parts maintain identical CRI (80 Typ) and MSL (2A, 4 Weeks) specifications.

Key Considerations for Implementation:

The primary design change required is accommodation of the reduced forward voltage (3.3V vs. 10.7V). The MX6AWT operates at significantly lower voltage, necessitating power supply redesign or current-limiting circuit modification. The substitute provides higher luminous flux (104 lm vs. 91 lm) and superior efficiency (105 lm/W vs. 74 lm/W), delivering improved performance within the same physical footprint.

The MX6AWT-A1-0000-000CZ5 is classified as an active product with RoHS compliance, ensuring long-term availability and regulatory alignment. The improved thermal resistance (5°C/W vs. 11°C/W) provides enhanced thermal management capability.

Frequently Asked Questions (FAQ)

Q: Can the MX6AWT-A1-0000-000CZ5 be used as a direct drop-in replacement for the MX3SWT-A1-0000-000AF5?

A: The MX6AWT-A1-0000-000CZ5 matches the physical footprint and package geometry, allowing PCB-level compatibility. However, the forward voltage difference (3.3V vs. 10.7V) requires power supply or current-limiting circuit redesign. Direct substitution without circuit modification will result in component failure.

Q: What are the key electrical differences between these parts?

A: The MX6AWT operates at 3.3V forward voltage with 300 mA test current, compared to the MX3SWT at 10.7V and 115 mA. The MX6AWT provides higher luminous flux (104 lm vs. 91 lm) and efficiency (105 lm/W vs. 74 lm/W). Both maintain identical color temperature (4250K) and CRI (80 Typ).

Q: Are the physical dimensions identical?

A: Yes. Both parts share identical footprint dimensions (5.00 mm × 5.00 mm) and maximum seated height (1.48 mm), ensuring PCB layout compatibility without modification.

Q: What is the impact of the thermal resistance difference?

A: The MX6AWT-A1-0000-000CZ5 has lower thermal resistance (5°C/W vs. 11°C/W), indicating superior heat dissipation capability. This improvement reduces junction temperature at equivalent power levels, enhancing reliability and lifespan.

Q: Are both parts compliant with environmental regulations?

A: Both parts maintain REACH Unaffected status. The MX6AWT-A1-0000-000CZ5 is additionally RoHS Compliant, providing enhanced regulatory alignment for applications with RoHS requirements.

Q: What is the moisture sensitivity level for both parts?

A: Both the MX3SWT-A1-0000-000AF5 and MX6AWT-A1-0000-000CZ5 are classified as MSL 2A (4 Weeks), requiring identical handling and storage protocols.