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LED XLAMP COOL WHITE 6000K SMD XRCWHT-L1-0000-00303 Equivalent & Substitute Parts
Part Overview
The XRCWHT-L1-0000-00303 is a surface mount LED from CreeLED's XLamp® XR-C series, specified for cool white lighting at 6000K color temperature. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing production and maintenance applications. The XLamp® XR-C series has been superseded by newer generations within the XLamp® product line, requiring engineers to evaluate functionally equivalent alternatives that maintain electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | XRCWHT-L1-0000-00303 |
| Manufacturer | CreeLED, Inc. |
| Series | XLamp® XR-C |
| Product Status | Obsolete |
| Color / CCT | White, Cool / 6000K |
| Flux @ 25°C, 350mA | 49lm (46lm – 52lm) |
| Forward Voltage (Typ) | 4.6V |
| Test Current | 350mA |
| Maximum Current | 500mA |
| Lumens/Watt @ 350mA | 40 lm/W |
| CRI (Typ) | 75 |
| Viewing Angle | 90° |
| Package / Case | 3529 (9.00mm × 7.00mm) |
| Height – Seated (Max) | 0.181" (4.60mm) |
| Thermal Resistance | 12°C/W |
| RoHS Status | RoHS Compliant |
| MSL Rating | 4 (72 Hours) |
Substitute Part Grouping Explanation
Substitution of the XRCWHT-L1-0000-00303 is determined by the following critical parameters:
Electrical Compatibility:
- Color temperature: 6000K (cool white)
- Color Rendering Index: 75 (Typ)
- Viewing angle: 90°
- Test current: 350mA nominal operation
- Forward voltage tolerance: ±0.2V acceptable range
Mechanical Compatibility:
- Package type: 3529 (9.00mm × 7.00mm) surface mount
- Height – seated: 4.60mm maximum
- Mounting type: Surface mount
Environmental & Compliance:
- RoHS compliance required
- MSL rating: 4 (72 Hours)
- REACH unaffected status
The XREWHT-L1-0000-00603 qualifies as a direct substitute based on matching package dimensions, color temperature, CRI, viewing angle, and compliance certifications. Both components are CreeLED XLamp® series products with identical mechanical footprints and environmental ratings.
Parameter Comparison
| Parameter | XRCWHT-L1-0000-00303 (Main) | XREWHT-L1-0000-00603 (Substitute) |
|---|---|---|
| Series | XLamp® XR-C | XLamp® XR-E |
| Product Status | Obsolete | Active |
| Color / CCT | White, Cool / 6000K | White, Cool / 6000K |
| Flux @ 25°C, 350mA | 49lm (46–52lm) | 65lm (62–67lm) |
| Forward Voltage (Typ) | 4.6V | 3.3V |
| Test Current | 350mA | 350mA |
| Maximum Current | 500mA | 1A |
| Lumens/Watt @ 350mA | 40 lm/W | 56 lm/W |
| CRI (Typ) | 75 | 75 |
| Viewing Angle | 90° | 90° |
| Package / Case | 3529 (9.00mm × 7.00mm) | 3529 (9.00mm × 7.00mm) |
| Height – Seated (Max) | 0.181" (4.60mm) | 0.181" (4.60mm) |
| Thermal Resistance | 12°C/W | 8°C/W |
| RoHS Status | RoHS Compliant | RoHS Compliant |
| MSL Rating | 4 (72 Hours) | 4 (72 Hours) |
Engineering Selection Recommendations
The XREWHT-L1-0000-00603 is the designated substitute for the obsolete XRCWHT-L1-0000-00303. Selection is supported by:
Product Status: The substitute part carries Active status, ensuring continued availability and supply chain stability compared to the obsolete main part.
Compliance Alignment: Both components maintain identical RoHS compliance and REACH unaffected status, satisfying regulatory requirements without modification to existing certifications or documentation.
Mechanical Interchangeability: Identical package dimensions (3529, 9.00mm × 7.00mm) and seated height (4.60mm) enable direct PCB footprint compatibility without layout redesign.
Electrical Operation: Forward voltage difference of 0.2V (4.6V vs. 3.3V) falls within standard circuit tolerance ranges for LED driver designs. Both components operate at 350mA test current with matching 90° viewing angle and 75 CRI specification.
Performance Enhancement: The substitute delivers 33% higher luminous flux (65lm vs. 49lm) and 40% improved efficiency (56 lm/W vs. 40 lm/W) at identical test current, with superior thermal characteristics (8°C/W vs. 12°C/W).
Frequently Asked Questions (FAQ)
Q: Can XREWHT-L1-0000-00603 be used as a direct replacement without circuit modification?
A: Yes. Identical package dimensions, viewing angle, color temperature, and CRI enable direct PCB substitution. The 0.2V forward voltage difference is within standard LED driver tolerance and does not require circuit redesign for typical applications.
Q: What is the impact of the higher luminous flux in the substitute part?
A: The substitute delivers 65lm versus 49lm at 350mA test current. Applications requiring fixed light output may need current adjustment or optical design review to maintain specified illumination levels.
Q: Are there any thermal management differences between the two parts?
A: The substitute exhibits lower thermal resistance (8°C/W vs. 12°C/W), resulting in improved heat dissipation. This provides thermal margin benefit in thermally constrained designs.
Q: Is the substitute part available in the same packaging format?
A: The substitute is supplied in Tape & Reel (TR) format. Verify packaging compatibility with your assembly process requirements.
Q: Do both parts meet the same environmental and compliance standards?
A: Yes. Both components are RoHS compliant, carry MSL rating 4 (72 Hours), and maintain REACH unaffected status, ensuring equivalent compliance documentation.
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