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

Part Overview

The MX3SWT-A1-R250-000CDZ is a CreeLED XLamp® MX-3S cool white LED (5000K) in a 2-SMD surface mount package with exposed pad. This part operates at 10.7V forward voltage with 115mA test current, delivering 104 lumens at 85 lm/W efficiency and a 120° viewing angle. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

MX3SWT-A1-R250-000CDZ

CreeLED, Inc.In Stock: 1016MX3SWT-A1-R250-000CDZ Datasheet

Current PartRFQ

MX3AWT-A1-R250-000CDZ

CreeLED, Inc.In Stock: 966MX3AWT-A1-R250-000CDZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Mechanical Compatibility:

• Package type: 2-SMD, Gull Wing Exposed Pad
• Physical dimensions: 5.00 mm × 5.00 mm footprint
• Height: 1.48 mm maximum seated height
• Thermal resistance: 11°C/W

Optical Compatibility:

• Color: White, Cool
• Correlated Color Temperature (CCT): 5000K
• Viewing angle: 120°
• Flux output: 104 lm nominal (100–107 lm acceptable range)
• CRI: 75 (Typ)

Electrical Compatibility:

• Forward voltage operating range and test current characteristics
• Maximum current rating
• Efficiency (lumens/watt)

Regulatory & Environmental:

• Moisture Sensitivity Level: 2A (4 Weeks)
• REACH compliance status
• RoHS compliance status (where applicable)

The MX3AWT-A1-R250-000CDZ qualifies as a substitute based on matching mechanical footprint, optical specifications (color, CCT, viewing angle, flux output, CRI), and regulatory compliance. However, electrical parameters differ significantly: the substitute operates at 3.7V with 350mA test current versus the original 10.7V at 115mA. This difference requires circuit-level evaluation to confirm compatibility.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The MX3AWT-A1-R250-000CDZ is mechanically and optically compatible with the obsolete MX3SWT-A1-R250-000CDZ. Both parts share identical package geometry, footprint, thermal characteristics, color temperature, flux output, and CRI rating.

Critical Consideration:

The substitute part operates at significantly lower forward voltage (3.7V vs. 10.7V) and higher test current (350mA vs. 115mA). This electrical difference necessitates circuit redesign. Existing drive circuits designed for the MX3SWT series cannot be directly applied to the MX3AWT series without modification to current-limiting and voltage regulation stages.

Compliance Status:

The substitute part is active in production and carries explicit RoHS compliance certification, whereas the original part's RoHS status is not specified. Both parts maintain REACH Unaffected status and identical MSL ratings (2A, 4 Weeks).

Recommendation Basis:

Selection of the MX3AWT-A1-R250-000CDZ as a substitute is valid only when circuit-level electrical compatibility can be confirmed. Mechanical and optical substitution is direct; electrical redesign is mandatory.

Frequently Asked Questions (FAQ)

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

A: No. While the parts share identical mechanical footprints and optical characteristics (color, CCT, flux, viewing angle), the electrical parameters differ fundamentally. The substitute operates at 3.7V with 350mA test current, whereas the original operates at 10.7V with 115mA test current. Direct substitution without circuit modification will result in incorrect LED operation or failure.

Q: Are the package dimensions identical between the two parts?

A: Yes. Both parts use a 2-SMD, Gull Wing Exposed Pad package with 5.00 mm × 5.00 mm footprint and 1.48 mm maximum seated height. PCB layout and mechanical assembly are compatible.

Q: Do both parts have the same thermal characteristics?

A: Yes. Both parts have 11°C/W thermal resistance and identical MSL rating (2A, 4 Weeks). Thermal management design is equivalent.

Q: What is the optical difference between these parts?

A: There is no optical difference. Both parts deliver 104 lm at 5000K (cool white) with 120° viewing angle and 75 CRI. The substitute has slightly lower efficiency (80 lm/W vs. 85 lm/W), but flux output is identical.

Q: Is the substitute part RoHS compliant?

A: Yes. The MX3AWT-A1-R250-000CDZ is explicitly RoHS compliant. The original part's RoHS status is not specified in the provided data.

Q: What is the primary barrier to substitution?

A: Electrical incompatibility. The substitute requires a different drive circuit design due to its lower forward voltage and higher current requirements. Mechanical and optical compatibility is direct; electrical redesign is necessary.