LED XLAMP XRCWHT-L1-0000-002B4 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-002B4 is a CreeLED XLamp® XR-C neutral white LED in 3529 surface mount package. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and production continuity. The XR-C series has been superseded by newer XLamp® generations offering improved performance metrics while maintaining mechanical and electrical compatibility within defined parameters.

Substiute Parts

XRCWHT-L1-0000-002B4

CreeLED, Inc.In Stock: 1165XRCWHT-L1-0000-002B4 Datasheet

Current PartRFQ

XREWHT-L1-0000-006E5

CreeLED, Inc.In Stock: 2150XREWHT-L1-0000-006E5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XRCWHT-L1-0000-002B4 is determined by the following critical parameters:

Mechanical Compatibility: Package type (3529/9073 Metric), mounting type (Surface Mount), and physical dimensions (9.00mm x 7.00mm x 4.60mm max height) must remain identical to ensure PCB layout compatibility without redesign.

Electrical Compatibility: Forward voltage (Vf) tolerance, maximum current rating, and viewing angle (90°) establish the operational envelope. Substitute parts must operate within the same voltage and current ranges to function in existing driver circuits.

Regulatory Compliance: RoHS Compliant and REACH Unaffected status must be maintained for supply chain and end-use market requirements.

Performance Metrics: Luminous flux output, color characteristics (white), and efficiency (lumens/watt) define functional performance but allow for improvement in substitute parts.

The XREWHT-L1-0000-006E5 qualifies as a direct substitute based on identical package, mounting type, dimensions, and compliance certifications, while offering enhanced performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-006E5 is a qualified substitute for the obsolete XRCWHT-L1-0000-002B4 based on the following criteria:

Mechanical Fit: Identical 3529 package footprint and maximum seated height ensure direct PCB compatibility without layout modification.

Electrical Operation: The substitute operates at 3.3V typical forward voltage compared to 4.6V, representing a 0.2V reduction. This lower voltage is within typical driver circuit tolerance and reduces power dissipation. Maximum current rating increases from 500mA to 700mA, providing additional operational margin.

Regulatory Compliance: Both components maintain RoHS Compliant and REACH Unaffected certifications, satisfying supply chain and market requirements.

Performance Enhancement: The substitute delivers 65lm at 350mA test current versus 43lm for the main part, representing a 51% increase in luminous flux. Efficiency improves from 35 lm/W to 56 lm/W. Thermal resistance improves from 12°C/W to 8°C/W, enhancing heat dissipation characteristics.

Active Product Status: The substitute is in active production, ensuring long-term availability and supply continuity.

Frequently Asked Questions (FAQ)

Q: Can the XREWHT-L1-0000-006E5 be used as a direct replacement without circuit modification?

A: Yes. Both components share identical mechanical specifications (3529 package, 9.00mm x 7.00mm x 4.60mm), mounting type (Surface Mount), and viewing angle (90°). The lower forward voltage (3.3V vs 4.6V) and higher maximum current rating (700mA vs 500mA) are compatible with existing driver circuits designed for the original part.

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

A: The substitute (XREWHT-L1-0000-006E5) offers improved performance: 51% higher luminous flux (65lm vs 43lm), 60% better efficiency (56 lm/W vs 35 lm/W), lower forward voltage (3.3V vs 4.6V), and improved thermal resistance (8°C/W vs 12°C/W). The substitute also includes specified color temperature (4000K) and CRI rating (75 Typ), which were not specified for the original part.

Q: Are there any compatibility concerns with PCB assembly?

A: No. Identical package dimensions and mounting type ensure compatibility with existing pick-and-place equipment and reflow profiles. No PCB redesign is required.

Q: Why is the original part obsolete?

A: The XRCWHT-L1-0000-002B4 belongs to the XLamp® XR-C series, which has been superseded by newer XLamp® generations offering superior performance and efficiency. The XR-E series represents the current generation for this package category.

Q: Does the lower forward voltage affect circuit design?

A: The 0.2V reduction in forward voltage (4.6V to 3.3V) is within standard tolerance for LED driver circuits. This results in lower power dissipation and improved efficiency. No circuit redesign is necessary for typical applications.

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

A: The substitute's thermal resistance of 8°C/W versus 12°C/W indicates more efficient heat transfer from the LED junction to the PCB. This allows for higher sustained current operation and improved reliability in thermally constrained applications.