XRCWHT-L1-0000-003F4 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-003F4 is an XLamp® XR-C series neutral white LED (4750K) designed for surface mount applications in the 3529 (9073 Metric) package. 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 The XR-C series has been superseded by newer XLamp® generations, requiring careful parameter matching to ensure functional equivalence in existing designs.

Substiute Parts

XRCWHT-L1-0000-003F4

CreeLED, Inc.In Stock: 839XRCWHT-L1-0000-003F4 Datasheet

Current PartRFQ

XREWHT-L1-0000-005F4

CreeLED, Inc.In Stock: 818XREWHT-L1-0000-005F4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XRCWHT-L1-0000-003F4 is determined by the following critical parameters:

• Color Temperature Match: 4750K neutral white specification must be maintained
• Package Compatibility: 3529 (9073 Metric) surface mount package required for PCB footprint alignment
• Viewing Angle: 90° specification for optical performance consistency
• Color Rendering Index: 75 CRI minimum for color accuracy requirements
• Compliance Standards: RoHS compliance and REACH unaffected status must be preserved

The XREWHT-L1-0000-005F4 qualifies as a direct substitute based on matching all critical parameters within the allowed electrical and mechanical specifications for this product category.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-005F4 is the qualified substitute for XRCWHT-L1-0000-003F4 based on the following engineering criteria:

• Compliance Alignment: Both parts maintain RoHS compliance and REACH unaffected status, ensuring regulatory continuity
• Product Status: The substitute is active production status, providing supply chain stability and long-term availability
• Package Equivalence: Identical 3529 (9073 Metric) package dimensions enable direct PCB footprint compatibility without layout modifications
• Optical Specifications: Matching 4750K color temperature and 90° viewing angle preserve optical performance characteristics
• Electrical Compatibility: Forward voltage difference of 0.2V (4.6V vs. 3.3V) is within typical circuit design tolerance ranges for LED driver circuits

The substitute demonstrates improved thermal performance (8°C/W vs. 12°C/W) and higher luminous efficacy (51 lm/W vs. 40 lm/W), representing a performance enhancement over the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-005F4 be used as a direct replacement without circuit modifications?

A: The substitute shares identical package dimensions and optical specifications. The 0.2V forward voltage difference may require minor LED driver circuit adjustment depending on the original design topology. Verify driver compliance with the 3.3V specification.

Q: What is the impact of the luminous flux difference (49lm vs. 59lm)?

A: The substitute provides approximately 20% higher luminous output at the same 350mA test current. Applications requiring fixed brightness levels may need current adjustment to maintain original light output specifications.

Q: Are there any thermal management considerations?

A: The substitute exhibits superior thermal resistance (8°C/W vs. 12°C/W), resulting in lower junction temperatures under identical operating conditions. This improves reliability and extends operational lifespan.

Q: Is the packaging format identical?

A: Both parts use the 3529 (9073 Metric) surface mount package with identical physical dimensions (9.00mm × 7.00mm × 4.60mm). No PCB footprint or assembly process changes are required.

Q: What is the maximum current rating difference?

A: The substitute supports 700mA maximum current versus 500mA for the original part. Existing designs operating at 350mA test current remain fully compatible.