LED XLamp® MX-3S Warm White 3250K SMD (MX3SWT-A1-0000-000BA7) — Equivalent & Substitute Parts

Part Overview

The CreeLED MX3SWT-A1-0000-000BA7 is a warm white (3250K) surface-mount LED from the XLamp® MX-3S series, designed for general illumination applications requiring warm color temperature and moderate luminous output. This part is classified as obsolete, making identification of compatible substitute components essential for ongoing production, maintenance, and design continuity. The MX-3S series has been superseded by newer XLamp® generations, requiring careful parameter matching to ensure functional equivalence in existing or new designs.

Substiute Parts

MX3SWT-A1-0000-000BA7

CreeLED, Inc.In Stock: 731MX3SWT-A1-0000-000BA7 Datasheet

Current PartRFQ

MX6AWT-A1-0000-000BA7

CreeLED, Inc.In Stock: 758MX6AWT-A1-0000-000BA7 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete MX3SWT-A1-0000-000BA7 is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Color and Correlated Color Temperature (CCT): White, Warm 3250K
• Luminous Flux output: 97 lm nominal (94–100 lm range)
• Color Rendering Index (CRI): 80 (Typ)
• Viewing Angle: 120°
• Package Type: 2-SMD, Gull Wing Exposed Pad
• Physical Dimensions: 5.00 mm × 5.00 mm footprint
• Mounting Type: Surface Mount

Secondary Compatibility Parameters:

• Moisture Sensitivity Level: 2A or better
• Thermal Resistance: ≤11°C/W or lower (improved thermal performance acceptable)
• Product Status: Active or current production preferred for long-term availability

The substitute part MX6AWT-A1-0000-000BA7 meets all primary criteria and improves upon secondary parameters. While forward voltage and test current differ due to the MX-6 series architecture, the luminous flux output, color characteristics, and physical package remain equivalent, enabling direct functional substitution in applications where the LED is current-limited by external circuitry.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The MX6AWT-A1-0000-000BA7 is a direct functional substitute for the obsolete MX3SWT-A1-0000-000BA7 based on matching luminous flux, color temperature, CRI, viewing angle, and physical package dimensions. Both components are classified as 2-SMD, Gull Wing Exposed Pad devices with identical 5.00 mm × 5.00 mm footprints and 1.48 mm seated heights, ensuring PCB layout compatibility without redesign.

Electrical Considerations:

The MX-6 substitute operates at significantly lower forward voltage (3.3V vs. 10.7V) and higher test current (300mA vs. 115mA). This difference reflects the MX-6 series' advanced semiconductor architecture. Designs using the original MX-3S must employ current-limiting circuitry; the substitute requires equivalent current control at its specified operating point. Direct voltage-for-voltage replacement without circuit modification is not applicable.

Compliance and Availability:

The MX6AWT-A1-0000-000BA7 holds Active product status with RoHS compliance certification, ensuring long-term supply chain availability and regulatory alignment. Both parts share identical Moisture Sensitivity Level (2A, 4 Weeks) and REACH Unaffected status. The substitute's improved thermal resistance (5°C/W vs. 11°C/W) provides enhanced thermal performance in high-density applications.

Recommendation:

The MX6AWT-A1-0000-000BA7 is approved for substitution in applications where external current-limiting circuitry is implemented. Circuit redesign to accommodate the lower forward voltage is required. No mechanical or optical redesign is necessary.

Frequently Asked Questions (FAQ)

Q: Can the MX6AWT-A1-0000-000BA7 be used as a direct drop-in replacement without circuit modification?

A: No. While the physical package and optical characteristics are identical, the MX-6 operates at 3.3V forward voltage compared to the MX-3S at 10.7V. The external current-limiting circuit must be redesigned to accommodate this voltage difference. Direct substitution without circuit modification will result in incorrect LED current and potential component failure.

Q: Are the PCB footprints identical between MX3SWT-A1-0000-000BA7 and MX6AWT-A1-0000-000BA7?

A: Yes. Both components use the 2-SMD, Gull Wing Exposed Pad package with 5.00 mm × 5.00 mm dimensions and 1.48 mm maximum seated height. PCB layout and solder pad geometry require no modification.

Q: What is the impact of the different test currents (115mA vs. 300mA) on luminous output?

A: Both parts deliver 97 lm nominal luminous flux at their respective test currents. The MX-6 achieves higher luminous efficacy (98 lm/W vs. 79 lm/W) due to improved semiconductor efficiency. When operated at equivalent luminous output levels, the MX-6 requires proportionally higher current due to its lower forward voltage architecture.

Q: Is the MX6AWT-A1-0000-000BA7 RoHS compliant?

A: Yes. The MX6AWT-A1-0000-000BA7 is RoHS Compliant. The original MX3SWT-A1-0000-000BA7 RoHS status is not specified in available documentation.

Q: What is the significance of the thermal resistance difference (11°C/W vs. 5°C/W)?

A: The MX-6 substitute exhibits superior thermal performance with 5°C/W thermal resistance compared to 11°C/W for the MX-3S. This improvement reduces junction temperature rise under identical power dissipation, enhancing reliability and potentially extending operational lifetime in thermally constrained applications.

Q: Can both parts be used interchangeably in existing inventory?

A: No. The MX3SWT-A1-0000-000BA7 is obsolete and should be replaced with the MX6AWT-A1-0000-000BA7 only when circuit redesign is feasible. Mixing parts in production requires documented circuit validation and controlled implementation to prevent field failures.

Q: What is the Moisture Sensitivity Level requirement for storage and handling?

A: Both components are classified as MSL 2A (4 Weeks), indicating they must be stored in controlled humidity environments and used within four weeks of package opening. Standard ESD precautions and dry-storage protocols apply to both parts.