XRCWHT-L1-0000-003A7 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-003A7 is an XLamp® XR-C warm white LED (3250K) in surface mount 3529 package configuration. This part is classified as obsolete, making identification of compatible substitutes essential for ongoing production and maintenance applications. The XR-C series has been superseded by newer XLamp® generations offering improved performance characteristics while maintaining mechanical and thermal compatibility.

Substiute Parts

XRCWHT-L1-0000-003A7

CreeLED, Inc.In Stock: 1108XRCWHT-L1-0000-003A7 Datasheet

Current PartRFQ

XREWHT-L1-0000-005A7

CreeLED, Inc.In Stock: 818XREWHT-L1-0000-005A7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of XRCWHT-L1-0000-003A7 is based on the following critical parameters:

• Color Temperature Match: 3250K warm white specification must be maintained
• Package Compatibility: 3529 (9073 Metric) surface mount package with identical footprint and height
• Mechanical Fit: Identical dimensions (9.00mm x 7.00mm) and maximum seated height (4.60mm)
• Viewing Angle: 90° beam angle consistency
• Compliance: RoHS compliant status and MSL rating compatibility

The XREWHT-L1-0000-005A7 qualifies as a direct substitute based on these parameters. Both parts share identical package geometry, color temperature, viewing angle, and compliance certifications, enabling direct board-level replacement without design modification.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-005A7 is the qualified substitute for XRCWHT-L1-0000-003A7. Selection is supported by:

• Active Product Status: The substitute is currently in active production, ensuring long-term availability and supply chain continuity
• Identical Mechanical Interface: Both parts occupy the same 3529 package footprint with matching dimensions and height, enabling direct PCB replacement without layout modification
• Compliance Alignment: Both parts maintain RoHS compliance and identical MSL ratings, satisfying regulatory and manufacturing process requirements
• Enhanced Performance: The XR-E generation delivers improved luminous efficiency (51 lm/W vs. 40 lm/W) and superior thermal characteristics (8°C/W vs. 12°C/W) at equivalent test current

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-005A7 be used as a direct replacement on existing PCBs designed for XRCWHT-L1-0000-003A7?

A: Yes. Both parts share identical 3529 package geometry, footprint dimensions (9.00mm x 7.00mm), and maximum seated height (4.60mm). No PCB redesign is required.

Q: What are the electrical differences between these parts?

A: The substitute operates at a lower typical forward voltage (3.3V vs. 4.6V) and supports higher maximum current (700mA vs. 500mA). At the standard 350mA test current, both parts are electrically compatible. Circuit designs should account for the 0.2V voltage difference in power supply calculations.

Q: Are the color temperature specifications identical?

A: Yes. Both parts are specified at 3250K warm white with 90° viewing angle, ensuring consistent optical performance in the application.

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

A: The substitute exhibits superior thermal performance (8°C/W vs. 12°C/W), resulting in lower junction temperatures under identical operating conditions. This provides improved reliability margin and extended operational life.

Q: Are there packaging differences between these parts?

A: The main part is supplied in standard packaging, while the substitute is available in Tape & Reel (TR) format. Both are MSL 4 rated with 72-hour moisture sensitivity windows. Tape & Reel packaging is standard for high-volume production environments.

Q: Why is the original part classified as obsolete?

A: The XRCWHT-L1-0000-003A7 belongs to the XLamp® XR-C series, which has been superseded by the XLamp® XR-E generation. The newer series offers improved efficiency and thermal characteristics while maintaining backward compatibility through identical package specifications.