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XRCWHT-L1-0000-009F4 Equivalent & Substitute Parts
Part Overview
The XRCWHT-L1-0000-009F4 is a CreeLED XLamp® XR-C neutral white LED (4750K) in 3529 surface mount package. This part is classified as obsolete. Due to its discontinued status, equivalent substitute parts from the active XLamp® XR-E series are available to maintain design continuity and ensure supply chain reliability. The XR-E series provides compatible electrical and mechanical characteristics while offering active product status and improved thermal performance.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | XRCWHT-L1-0000-009F4 |
| Manufacturer | CreeLED, Inc. |
| Series | XLamp® XR-C |
| Product Status | Obsolete |
| Color | White, Neutral |
| CCT (K) | 4750K |
| Flux @ 25°C, 350mA | 84lm (81lm ~ 87lm) |
| Forward Voltage (Vf) Typical | 4.6V |
| Test Current | 350mA |
| Maximum Current | 500mA |
| Lumens/Watt @ 350mA | 69 lm/W |
| CRI (Color Rendering Index) | 75 (Typ) |
| Viewing Angle | 90° |
| Package / Case | 3529 (9073 Metric) |
| Size / Dimension | 0.354" L x 0.276" W (9.00mm x 7.00mm) |
| Height - Seated (Max) | 0.181" (4.60mm) |
| Thermal Resistance of Package | 12°C/W |
| Mounting Type | Surface Mount |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution of XRCWHT-L1-0000-009F4 is based on the following criteria:
Mechanical Compatibility:
- Identical package type: 3529 (9073 Metric)
- Identical physical dimensions: 0.354" L x 0.276" W (9.00mm x 7.00mm)
- Identical maximum seated height: 0.181" (4.60mm)
- Surface mount configuration maintained
Electrical Compatibility:
- Identical color specification: White, Neutral
- Identical test current: 350mA
- Identical luminous flux @ 25°C, 350mA: 84lm (81lm ~ 87lm)
- Identical CRI: 75 (Typ)
- Identical viewing angle: 90°
- Forward voltage tolerance: XR-E series operates at 3.3V (0.2V lower than XR-C 4.6V) within acceptable design margins for constant-current driver circuits
Compliance & Environmental:
- RoHS Compliant (all substitutes)
- REACH Unaffected (all substitutes)
- MSL 4 (72 Hours) maintained across all parts
Series Transition: All substitute parts transition from obsolete XLamp® XR-C to active XLamp® XR-E series, ensuring long-term availability and supply chain continuity.
Parameter Comparison
| Parameter | XRCWHT-L1-0000-009F4 (Main) | XREWHT-L1-0000-009F4 | XREWHT-L1-R250-009F4 | XREWHT-L1-0000-009E4 | XREWHT-L1-R250-009E4 | XREWHT-L1-0000-009E5 | XREWHT-L1-R250-009E5 | XREWHT-L1-0000-009F5 | XREWHT-L1-R250-009F5 |
|---|---|---|---|---|---|---|---|---|---|
| Series | XLamp® XR-C | XLamp® XR-E | XLamp® XR-E | XLamp® XR-E | XLamp® XR-E | XLamp® XR-E | XLamp® XR-E | XLamp® XR-E | XLamp® XR-E |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active |
| Color | White, Neutral | White, Neutral | White, Neutral | White, Neutral | White, Neutral | White, Neutral | White, Neutral | White, Neutral | White, Neutral |
| CCT (K) | 4750K | 4750K | 4750K | 4500K | 4500K | 4000K | 4000K | 4300K | 4300K |
| Flux @ 25°C, 350mA (lm) | 84 (81~87) | 84 (81~87) | 84 (81~87) | 84 (81~87) | 84 (81~87) | 84 (81~87) | 84 (81~87) | 84 (81~87) | 84 (81~87) |
| Forward Voltage (Vf) Typical | 4.6V | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Test Current | 350mA | 350mA | 350mA | 350mA | 350mA | 350mA | 350mA | 350mA | 350mA |
| Maximum Current | 500mA | 700mA | 700mA | 700mA | 700mA | 700mA | 700mA | 700mA | 700mA |
| Lumens/Watt @ 350mA | 69 lm/W | 73 lm/W | 73 lm/W | 73 lm/W | 73 lm/W | 73 lm/W | 73 lm/W | 73 lm/W | 73 lm/W |
| CRI (Color Rendering Index) | 75 (Typ) | 75 (Typ) | 75 (Typ) | 75 (Typ) | 75 (Typ) | 75 (Typ) | 75 (Typ) | 75 (Typ) | 75 (Typ) |
| Viewing Angle | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° |
| Package / Case | 3529 (9073 Metric) | 3529 (9073 Metric) | 3529 (9073 Metric) | 3529 (9073 Metric) | 3529 (9073 Metric) | 3529 (9073 Metric) | 3529 (9073 Metric) | 3529 (9073 Metric) | 3529 (9073 Metric) |
| Size / Dimension | 0.354" L x 0.276" W (9.00mm x 7.00mm) | 0.354" L x 0.276" W (9.00mm x 7.00mm) | 0.354" L x 0.276" W (9.00mm x 7.00mm) | 0.354" L x 0.276" W (9.00mm x 7.00mm) | 0.354" L x 0.276" W (9.00mm x 7.00mm) | 0.354" L x 0.276" W (9.00mm x 7.00mm) | 0.354" L x 0.276" W (9.00mm x 7.00mm) | 0.354" L x 0.276" W (9.00mm x 7.00mm) | 0.354" L x 0.276" W (9.00mm x 7.00mm) |
| Height - Seated (Max) | 0.181" (4.60mm) | 0.181" (4.60mm) | 0.181" (4.60mm) | 0.181" (4.60mm) | 0.181" (4.60mm) | 0.181" (4.60mm) | 0.181" (4.60mm) | 0.181" (4.60mm) | 0.181" (4.60mm) |
| Thermal Resistance of Package | 12°C/W | 8°C/W | 8°C/W | 8°C/W | 8°C/W | 8°C/W | 8°C/W | 8°C/W | 8°C/W |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | RoHS Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) | 4 (72 Hours) | 4 (72 Hours) | 4 (72 Hours) | 4 (72 Hours) | 4 (72 Hours) | 4 (72 Hours) | 4 (72 Hours) | 4 (72 Hours) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
Primary Substitute (Exact CCT Match): XREWHT-L1-0000-009F4 and XREWHT-L1-R250-009F4 are direct functional equivalents with identical 4750K color temperature. Both parts are active products with RoHS compliance and REACH unaffected status. The difference between these two is packaging format: standard tape & reel versus R250 reel specification. Selection depends on procurement and assembly line requirements.
Secondary Substitutes (Adjacent CCT): XREWHT-L1-0000-009F5 / XREWHT-L1-R250-009F5 (4300K) and XREWHT-L1-0000-009E4 / XREWHT-L1-R250-009E4 (4500K) are suitable where CCT tolerance permits. All maintain identical luminous flux, CRI, viewing angle, and mechanical compatibility. These parts offer active product status and improved thermal performance (8°C/W versus 12°C/W).
Tertiary Substitute (Cooler CCT): XREWHT-L1-0000-009E5 / XREWHT-L1-R250-009E5 (4000K) operates at the cooler end of the neutral white spectrum. Selection is appropriate only where application design accommodates the 750K shift from the original 4750K specification.
Thermal Advantage: All XR-E substitutes provide improved thermal resistance (8°C/W) compared to the original XR-C part (12°C/W), resulting in lower junction temperatures at equivalent drive currents and enhanced reliability.
Frequently Asked Questions (FAQ)
Q: Can XREWHT-L1-0000-009F4 directly replace XRCWHT-L1-0000-009F4 without circuit modification?
A: Yes. Both parts operate at identical test current (350mA), produce identical luminous flux (84lm), maintain identical viewing angle (90°), and share identical package dimensions (3529, 9.00mm x 7.00mm). The forward voltage difference (3.3V versus 4.6V) is accommodated by constant-current LED driver circuits, which are standard in modern LED applications. No circuit redesign is required.
Q: What is the difference between XREWHT-L1-0000-009F4 and XREWHT-L1-R250-009F4?
A: Both parts are electrically and mechanically identical. The difference is packaging format: XREWHT-L1-0000-009F4 uses standard tape & reel packaging, while XREWHT-L1-R250-009F4 uses R250 reel specification. Selection depends on assembly equipment compatibility and procurement preferences. Electrical performance is identical.
Q: Why do substitute parts show higher maximum current (700mA) than the original (500mA)?
A: The XR-E series supports higher maximum current ratings due to improved thermal design. However, the test current remains 350mA for all parts. Design circuits should maintain the original 350mA operating point to preserve luminous flux and thermal characteristics. The higher maximum rating provides design flexibility for future applications.
Q: Are all substitute parts RoHS compliant and REACH unaffected?
A: Yes. All substitute parts listed maintain RoHS Compliant status and REACH Unaffected designation, matching the original part's environmental compliance profile.
Q: Can I use XREWHT-L1-0000-009E5 (4000K) as a substitute for the 4750K original part?
A: XREWHT-L1-0000-009E5 is mechanically and electrically compatible but operates at 4000K instead of 4750K. This represents a 750K shift toward cooler color temperature. Substitution is permissible only where application specifications allow this color temperature deviation. For applications requiring strict CCT matching, use XREWHT-L1-0000-009F4 (4750K) or XREWHT-L1-0000-009F5 (4300K).
Q: What is the thermal advantage of switching to XR-E substitutes?
A: XR-E parts provide thermal resistance of 8°C/W compared to the original XR-C part's 12°C/W. At equivalent drive currents, this 33% improvement in thermal performance results in lower junction temperatures, extended component life, and enhanced system reliability.
Q: Is the MSL (Moisture Sensitivity Level) the same across all parts?
A: Yes. All parts maintain MSL 4 (72 Hours), requiring identical moisture control and handling procedures during storage and assembly.
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