XRCWHT-L1-0000-003E4 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-003E4 is an XLamp® XR-C series neutral white LED (4500K) designed for surface mount applications in the 3529 (9073 Metric) package. This part operates at 4.6V forward voltage with a 350mA test current, delivering 49lm at 25°C and 40 lm/W efficiency. The product is currently obsolete, making identification of compatible substitutes essential for ongoing production and maintenance applications requiring neutral white LED lighting at this color temperature and performance level.

Substiute Parts

XRCWHT-L1-0000-003E4

CreeLED, Inc.In Stock: 1184XRCWHT-L1-0000-003E4 Datasheet

Current PartRFQ

XREWHT-L1-0000-005E4

CreeLED, Inc.In Stock: 1007XREWHT-L1-0000-005E4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XRCWHT-L1-0000-003E4 is determined by the following critical parameters:

• Color and Color Temperature: White, Neutral 4500K (exact match required)
• Package / Case: 3529 (9073 Metric) surface mount package (physical compatibility)
• Mounting Type: Surface Mount (assembly compatibility)
• Viewing Angle: 90° (optical performance requirement)
• CRI: 75 (color rendering consistency)
• Compliance: RoHS Compliant, REACH Unaffected, MSL 4

The substitute XREWHT-L1-0000-005E4 meets all these criteria while offering improved performance characteristics. Both parts share identical physical dimensions, package specifications, and compliance certifications. The substitute operates at a lower forward voltage (3.3V vs 4.6V) and delivers higher luminous flux (59lm vs 49lm) at the same 350mA test current, resulting in superior efficiency (51 lm/W vs 40 lm/W).

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-005E4 is the direct substitute for the obsolete XRCWHT-L1-0000-003E4. Both parts are manufactured by CreeLED, Inc., carry identical RoHS Compliant and REACH Unaffected certifications, and share the same MSL 4 moisture sensitivity rating. The substitute maintains full physical and electrical compatibility within the 3529 package footprint.

The substitute part offers measurable performance improvements: 20% higher luminous flux (59lm vs 49lm), 27.5% better efficiency (51 lm/W vs 40 lm/W), and lower forward voltage (3.3V vs 4.6V). The improved thermal resistance (8°C/W vs 12°C/W) and higher maximum current rating (700mA vs 500mA) provide additional design margin. The substitute's active product status ensures ongoing availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-005E4 be used as a direct replacement for XRCWHT-L1-0000-003E4?

A: Yes. Both parts share identical package specifications (3529 / 9073 Metric), color temperature (4500K neutral white), viewing angle (90°), and compliance certifications (RoHS Compliant, REACH Unaffected, MSL 4). Physical dimensions and mounting type are identical, enabling direct PCB substitution.

Q: What are the electrical differences between these parts?

A: The substitute operates at 3.3V forward voltage compared to 4.6V for the main part, a 0.2V reduction. At the same 350mA test current, the substitute delivers 59lm versus 49lm, representing a 10lm increase in luminous flux. Efficiency improves from 40 lm/W to 51 lm/W.

Q: Are there thermal considerations for substitution?

A: The substitute exhibits superior thermal performance with 8°C/W thermal resistance versus 12°C/W for the main part. This 33% improvement in thermal resistance reduces junction temperature rise and supports higher current operation (700mA maximum vs 500mA).

Q: Does the substitute maintain color rendering consistency?

A: Yes. Both parts specify CRI (Color Rendering Index) of 75 at typical conditions, ensuring consistent color rendering performance in neutral white 4500K applications.

Q: What is the impact of lower forward voltage on circuit design?

A: The 0.2V reduction in forward voltage (3.3V vs 4.6V) decreases power dissipation in series current-limiting resistors. For constant-current driver circuits, this change has minimal impact. For resistor-based current limiting, recalculation of resistor values may optimize efficiency, though the substitute remains compatible with existing designs.

Q: Is the substitute available in the same packaging format?

A: The substitute is supplied in Tape & Reel (TR) format. The main part packaging format is not specified in the provided data. Both parts use the same 3529 (9073 Metric) component package suitable for automated assembly.