XRCWHT-L1-0000-003F8 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-003F8 is an XLamp® XR-C warm white LED (2900K) in surface mount 3529 package format. 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 The XR-C series has been superseded by newer XLamp® generations, requiring careful parameter matching for direct replacement in existing designs.

Substiute Parts

XRCWHT-L1-0000-003F8

CreeLED, Inc.In Stock: 1031XRCWHT-L1-0000-003F8 Datasheet

Current PartRFQ

XREWHT-L1-0000-004F8

CreeLED, Inc.In Stock: 1085XREWHT-L1-0000-004F8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The XREWHT-L1-0000-004F8 qualifies as a direct substitute based on the following alignment of critical parameters:

• Color Temperature Match: Both parts operate at 2900K warm white, ensuring identical color output
• Package Compatibility: Identical 3529 (9073 Metric) surface mount package enables direct PCB footprint compatibility
• Viewing Angle: Both maintain 90° viewing angle specification
• CRI Rating: Both achieve 80 CRI (Typical), maintaining color rendering consistency
• Mounting Type: Both are surface mount devices with identical mechanical dimensions (9.00mm × 7.00mm × 4.60mm max height)
• Compliance: Both are RoHS Compliant and REACH Unaffected

The XR-E series represents an active product line evolution from the obsolete XR-C series, with improved electrical performance characteristics while maintaining mechanical and optical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-004F8 is the designated substitute for the obsolete XRCWHT-L1-0000-003F8. Selection is supported by:

• Active Product Status: The XR-E variant is an active product line, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: Both parts maintain identical RoHS and REACH compliance status, eliminating regulatory risk in substitution
• Mechanical Compatibility: Identical package dimensions and mounting specifications enable direct PCB replacement without layout modification
• Optical Consistency: Matching color temperature (2900K) and CRI (80) preserve lighting performance characteristics
• Improved Performance: The XR-E series delivers higher luminous flux (54lm vs. 49lm) and improved efficacy (47 lm/W vs. 40 lm/W) at identical test current, with enhanced thermal management (8°C/W vs. 12°C/W)

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-004F8 be used as a direct replacement without circuit modification?

A: Yes. Both parts share identical package geometry (3529), mounting type (surface mount), and electrical test current (350mA). The forward voltage difference (3.3V vs. 4.6V) is within typical design margin for LED driver circuits. Verify driver compliance with the 3.3V specification before deployment.

Q: What is the impact of the forward voltage difference between the two parts?

A: The substitute operates at 3.3V typical versus 4.6V for the original. This 0.2V reduction may affect current regulation in constant-current driver designs. Confirm that the LED driver circuit accommodates the lower forward voltage specification.

Q: Are the thermal characteristics compatible?

A: The substitute exhibits superior thermal performance (8°C/W vs. 12°C/W), indicating more efficient heat dissipation. This improvement is compatible with existing thermal designs and does not introduce thermal management concerns.

Q: Does the higher maximum current rating (700mA vs. 500mA) affect substitution?

A: No. The substitute's higher maximum current rating provides additional operational headroom. Both parts are tested and specified at 350mA, which remains the standard operating point.

Q: Are moisture sensitivity and handling requirements identical?

A: Yes. Both parts carry MSL 4 (72 Hours) classification, requiring identical moisture control and storage protocols during assembly and handling.

Q: What is the luminous flux improvement in the substitute?

A: The XREWHT-L1-0000-004F8 delivers 54lm (52–57lm) compared to 49lm (46–52lm) for the original, representing approximately 10% higher light output at identical test current. This improvement is a benefit of the newer XR-E series technology.