MX3SWT-A1-0000-0007B8 Equivalent & Substitute Parts

Part Overview

The MX3SWT-A1-0000-0007B8 is a CreeLED XLamp® MX-3S white LED in 2-SMD gull wing exposed pad configuration, rated for 10.7V forward voltage and 115mA test current. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity. The substitute part MX3AWT-A1-0000-0007B8 from the XLamp® MX-3 series provides equivalent optical and mechanical characteristics while maintaining active product status.

Substiute Parts

MX3SWT-A1-0000-0007B8

CreeLED, Inc.In Stock: 734MX3SWT-A1-0000-0007B8 Datasheet

Current PartRFQ

MX3AWT-A1-0000-0007B8

CreeLED, Inc.In Stock: 858MX3AWT-A1-0000-0007B8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MX3SWT-A1-0000-0007B8 is based on the following criteria derived from the provided parameters:

Mechanical Compatibility: Both parts share identical package configuration (2-SMD, gull wing exposed pad), physical dimensions (5.00mm x 5.00mm), and height (1.48mm maximum seated height), ensuring direct PCB footprint compatibility.

Optical Equivalence: Both parts deliver identical luminous flux at 25°C test conditions (71lm with 67lm to 74lm tolerance range) and maintain the same 120° viewing angle, satisfying optical performance requirements.

Thermal Characteristics: Identical thermal resistance of package (11°C/W) ensures equivalent thermal management performance in circuit applications.

Electrical Differences: The substitute part MX3AWT-A1-0000-0007B8 operates at 3.7V forward voltage with 350mA test current, representing a different electrical operating point. This difference requires circuit redesign to accommodate the lower voltage and higher current characteristics of the substitute.

Environmental Compliance: Both parts maintain identical moisture sensitivity level (2A, 4 weeks) and REACH unaffected status, ensuring equivalent handling and storage requirements.

Parameter Comparison

Engineering Selection Recommendations

The MX3AWT-A1-0000-0007B8 is the designated substitute for the obsolete MX3SWT-A1-0000-0007B8 based on product status and compliance alignment. The substitute maintains active product status with CreeLED, Inc., ensuring ongoing availability and supply chain continuity.

Both parts carry identical REACH unaffected status and moisture sensitivity classification, confirming equivalent environmental compliance and handling requirements. The substitute part is RoHS compliant, providing additional regulatory assurance for new designs.

Substitution requires circuit modification to accommodate the electrical operating point difference: the substitute operates at 3.7V forward voltage with 350mA test current versus the original 10.7V at 115mA. This necessitates redesign of the LED drive circuit, including current limiting and voltage regulation stages.

Mechanical and optical compatibility is confirmed. The identical package configuration, physical dimensions, thermal resistance, and luminous flux output enable direct PCB footprint reuse with electrical circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can MX3AWT-A1-0000-0007B8 be used as a direct drop-in replacement for MX3SWT-A1-0000-0007B8?

A: No. While both parts share identical mechanical packaging, physical dimensions, and optical output, the substitute operates at significantly different electrical parameters (3.7V versus 10.7V forward voltage; 350mA versus 115mA test current). Circuit redesign is required to accommodate these electrical differences. PCB footprint compatibility is confirmed, but drive circuit modification is mandatory.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on: identical package configuration (2-SMD, gull wing exposed pad), matching physical dimensions (5.00mm x 5.00mm), identical height (1.48mm maximum), equivalent thermal resistance (11°C/W), identical luminous flux output (71lm at 25°C), matching viewing angle (120°), and equivalent environmental compliance (MSL 2A, REACH unaffected status).

Q: Are there any compliance or certification differences between these parts?

A: Both parts maintain REACH unaffected status and identical moisture sensitivity level (2A, 4 weeks). The substitute part MX3AWT-A1-0000-0007B8 carries RoHS compliance certification, whereas the original part status does not specify RoHS compliance. This represents an advantage for new designs subject to RoHS requirements.

Q: What is the impact of the voltage and current differences on circuit design?

A: The substitute requires a different LED driver circuit. The original part operates at 10.7V with 115mA test current, while the substitute operates at 3.7V with 350mA test current. This necessitates redesign of voltage regulation and current limiting stages. Power dissipation characteristics will differ: original design dissipates approximately 1.23W (10.7V × 115mA), while the substitute dissipates approximately 1.30W (3.7V × 350mA) at test conditions.

Q: Is the packaging format identical between both parts?

A: Yes. Both parts use 2-SMD gull wing exposed pad configuration with identical dimensions (5.00mm x 5.00mm) and maximum seated height (1.48mm). PCB footprint and assembly process compatibility is confirmed. The substitute is available in Tape & Reel (TR) packaging format.

Q: What is the efficiency difference between these parts?

A: The original MX3SWT-A1-0000-0007B8 delivers 58 lm/W at test current, while the substitute MX3AWT-A1-0000-0007B8 delivers 55 lm/W at test current. This represents a 3 lm/W efficiency difference, with the original part showing slightly higher luminous efficacy.