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

Part Overview

The XRCWHT-L1-0000-003AA is a CreeLED XLamp® XR-C warm white LED (2700K) designed for surface mount applications in the 3529 (9073 Metric) package. This component operates at 4.6V forward voltage with a 350mA test current, delivering 49lm at 25°C. The product is currently obsolete, necessitating identification of functionally equivalent alternatives to maintain design continuity and ensure component availability for new production runs and legacy system support.

Substiute Parts

XRCWHT-L1-0000-003AA

CreeLED, Inc.In Stock: 805XRCWHT-L1-0000-003AA Datasheet

Current PartRFQ

XREWHT-L1-0000-004E8

CreeLED, Inc.In Stock: 1113XREWHT-L1-0000-004E8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the XRCWHT-L1-0000-003AA is determined by the following critical parameters:

• Color and Correlated Color Temperature (CCT): Must be White, Warm 2700K to maintain color consistency in lighting applications
• Package / Case: Must be 3529 (9073 Metric) to ensure mechanical and thermal compatibility with existing PCB layouts
• Mounting Type: Must be Surface Mount to align with assembly processes
• Physical Dimensions: Must match 0.354" L x 0.276" W (9.00mm x 7.00mm) and 0.181" (4.60mm) maximum seated height
• Viewing Angle: Must be 90° to preserve optical performance characteristics
• Compliance: Must maintain RoHS Compliant and REACH Unaffected status

The identified substitute part XREWHT-L1-0000-004E8 meets all critical substitution criteria while offering improved electrical performance and active product status.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-004E8 is the qualified substitute for the obsolete XRCWHT-L1-0000-003AA based on the following engineering criteria:

Mechanical Compatibility: Both components share identical package dimensions (3529 / 9073 Metric), physical footprint (9.00mm x 7.00mm), and maximum seated height (4.60mm), ensuring direct PCB layout compatibility without redesign.

Optical Performance: Both maintain 90° viewing angle and 2700K warm white color temperature, preserving color consistency and light distribution characteristics in end-use applications.

Electrical Compatibility: The substitute operates at 3.3V forward voltage compared to 4.6V for the main part, representing a 0.2V reduction. Both are tested at 350mA, and the substitute supports higher maximum current (700mA vs. 500mA), providing design margin flexibility.

Thermal Performance: The substitute exhibits superior thermal characteristics with 8°C/W thermal resistance compared to 12°C/W, improving heat dissipation efficiency.

Regulatory Compliance: Both components maintain RoHS Compliant and REACH Unaffected status, satisfying regulatory requirements for new production.

Product Availability: The substitute is Active status with confirmed inventory (1088 Pcs), whereas the main part is Obsolete, making the substitute the only viable path for continued component sourcing.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-004E8 be used as a direct replacement for XRCWHT-L1-0000-003AA without circuit modification?

A: The substitute is mechanically and optically compatible. The 0.2V forward voltage difference (3.3V vs. 4.6V) is within typical LED driver tolerance ranges. Verify that your current-limiting circuit or LED driver accommodates the lower forward voltage specification. No PCB layout changes are required.

Q: What is the impact of the lower forward voltage (3.3V vs. 4.6V) on circuit design?

A: The 0.2V reduction results in lower power dissipation at the same 350mA test current. If your circuit uses a fixed voltage supply with series resistor current limiting, the substitute will draw slightly less current. If using a constant-current driver, no impact occurs. Recalculate series resistor values if applicable.

Q: Are the luminous flux specifications comparable between the two parts?

A: The substitute delivers 54lm at 25°C compared to 49lm for the main part, representing a 10% increase in light output at the same test current. This improvement is due to the XR-E series efficiency gains (47 lm/W vs. 40 lm/W). This may require brightness adjustment in applications with fixed output requirements.

Q: Do both parts have identical moisture sensitivity handling requirements?

A: Yes. Both components are rated MSL 4 (72 Hours), requiring identical moisture control during storage, handling, and reflow soldering processes. No changes to component storage or assembly procedures are necessary.

Q: Is the improved thermal resistance (8°C/W vs. 12°C/W) significant for thermal design?

A: The 33% improvement in thermal resistance reduces junction temperature rise for the same power dissipation. This provides better thermal margin in applications operating near maximum current ratings and improves long-term reliability in thermally constrained environments.

Q: Can the substitute support higher current operation due to its 700mA maximum rating?

A: The substitute supports 700mA maximum current compared to 500mA for the main part. However, operation above the 350mA test current requires verification of thermal management and forward voltage characteristics at elevated currents. Consult detailed electrical specifications for operation outside the test current condition.