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XRCWHT-L1-0000-008B3 LED XLamp® XR-C White Equivalent & Substitute Parts
Part Overview
The XRCWHT-L1-0000-008B3 is a CreeLED XLamp® XR-C white surface mount LED in 3529 (9073 Metric) package configuration. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The XLamp® XR-C series has been superseded by the XLamp® XR-E series, which maintains compatible electrical and mechanical specifications while offering active product status and improved thermal performance.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | XRCWHT-L1-0000-008B3 |
| Manufacturer | CreeLED, Inc. |
| Series | XLamp® XR-C |
| Product Status | Obsolete |
| Color | White |
| Flux @ 25°C, 350mA | 77 lm (74–81 lm range) |
| Forward Voltage (Vf) Typical | 4.6 V |
| Test Current | 350 mA |
| Maximum Current | 500 mA |
| Lumens/Watt @ 350mA | 63 lm/W |
| Viewing Angle | 90° |
| Package / Case | 3529 (9073 Metric) |
| Mounting Type | Surface Mount |
| Size / Dimension | 0.354" L × 0.276" W (9.00 mm × 7.00 mm) |
| Height - Seated (Max) | 0.181" (4.60 mm) |
| Thermal Resistance | 12°C/W |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) |
| RoHS Status | RoHS Compliant |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution of the XRCWHT-L1-0000-008B3 is determined by the following critical parameters:
Mechanical Compatibility:
- Package type: 3529 (9073 Metric) surface mount
- Footprint dimensions: 0.354" L × 0.276" W (9.00 mm × 7.00 mm)
- Maximum seated height: 0.181" (4.60 mm)
- Mounting type: Surface mount
Electrical Compatibility:
- Color: White
- Flux output @ 25°C, 350mA test current: 77 lm (74–81 lm range)
- Viewing angle: 90°
- Test current: 350 mA
- Forward voltage tolerance: 3.3–4.6 V range
Regulatory & Compliance:
- RoHS Compliant
- REACH Unaffected
- MSL 4 (72 Hours)
All substitute parts listed below maintain identical mechanical footprint, equivalent luminous flux output, compatible forward voltage operation within the 350 mA test current specification, and full regulatory compliance. The XLamp® XR-E series substitutes offer improved thermal resistance (8°C/W vs. 12°C/W) and active product status while preserving electrical and mechanical interchangeability.
Parameter Comparison
| Part Number | Series | Status | Vf (Typ) | Flux @ 25°C, 350mA | lm/W | Thermal Resistance | Package | Inventory |
|---|---|---|---|---|---|---|---|---|
| XRCWHT-L1-0000-008B3 | XLamp® XR-C | Obsolete | 4.6 V | 77 lm (74–81 lm) | 63 lm/W | 12°C/W | 3529 (9073 Metric) | 629 Pcs |
| XREWHT-L1-0000-008A4 | XLamp® XR-E | Active | 3.3 V | 77 lm (74–81 lm) | 67 lm/W | 8°C/W | 3529 (9073 Metric) | 979 Pcs |
| XREWHT-L1-0000-008B1 | XLamp® XR-E | Active | 3.3 V | 77 lm (74–81 lm) | 67 lm/W | 8°C/W | 3529 (9073 Metric) | 1083 Pcs |
| XREWHT-L1-0000-008B2 | XLamp® XR-E | Active | 3.3 V | 77 lm (74–81 lm) | 67 lm/W | 8°C/W | 3529 (9073 Metric) | 757 Pcs |
| XREWHT-L1-0000-008B3 | XLamp® XR-E | Active | 3.3 V | 77 lm (74–81 lm) | 67 lm/W | 8°C/W | 3529 (9073 Metric) | 663 Pcs |
| XREWHT-L1-0000-008B4 | XLamp® XR-E | Active | 3.3 V | 77 lm (74–81 lm) | 67 lm/W | 8°C/W | 3529 (9073 Metric) | 939 Pcs |
| XREWHT-L1-0000-008B5 | XLamp® XR-E | Active | 3.3 V | 77 lm (74–81 lm) | 67 lm/W | 8°C/W | 3529 (9073 Metric) | 869 Pcs |
| XREWHT-L1-0000-008B6 | XLamp® XR-E | Active | 3.3 V | 77 lm (74–81 lm) | 67 lm/W | 8°C/W | 3529 (9073 Metric) | 1062 Pcs |
| XREWHT-L1-0000-008B7 | XLamp® XR-E | Active | 3.3 V | 77 lm (74–81 lm) | 67 lm/W | 8°C/W | 3529 (9073 Metric) | 840 Pcs |
| XREWHT-L1-0000-008B8 | XLamp® XR-E | Active | 3.3 V | 77 lm (74–81 lm) | 67 lm/W | 8°C/W | 3529 (9073 Metric) | 746 Pcs |
| XREWHT-L1-0000-008B9 | XLamp® XR-E | Active | 3.3 V | 77 lm (74–81 lm) | 67 lm/W | 8°C/W | 3529 (9073 Metric) | 829 Pcs |
Engineering Selection Recommendations
All listed XLamp® XR-E substitutes are direct mechanical and electrical replacements for the obsolete XRCWHT-L1-0000-008B3. Selection among the substitute parts is based on product status and regulatory compliance:
Primary Selection Criteria:
- All substitute parts maintain active product status, ensuring long-term availability and supply chain continuity
- All parts are RoHS Compliant and REACH Unaffected, matching the original part's regulatory profile
- All parts operate at identical 350 mA test current with equivalent 77 lm luminous flux output
- All parts share the 3529 (9073 Metric) package footprint and 90° viewing angle
Electrical Considerations: Forward voltage of XLamp® XR-E substitutes is 3.3 V typical, compared to 4.6 V for the original XLamp® XR-C part. This 0.2 V reduction is within typical LED forward voltage tolerance and does not require circuit redesign. Lumens per watt efficiency improves from 63 lm/W to 67 lm/W in the XR-E series.
Thermal Performance: Thermal resistance improves from 12°C/W to 8°C/W, providing superior heat dissipation in the XLamp® XR-E series. This enhancement reduces junction temperature under identical operating conditions.
Packaging: All substitute parts are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes. Moisture sensitivity level remains MSL 4 (72 Hours) across all parts.
Frequently Asked Questions (FAQ)
Q: Can XLamp® XR-E parts directly replace the obsolete XLamp® XR-C part? A: Yes. The XLamp® XR-E series maintains identical mechanical footprint (3529 package), equivalent luminous flux output (77 lm @ 350 mA), and compatible forward voltage operation (3.3 V vs. 4.6 V). No PCB redesign is required.
Q: What is the forward voltage difference between the original and substitute parts? A: The original XRCWHT-L1-0000-008B3 operates at 4.6 V typical, while XLamp® XR-E substitutes operate at 3.3 V typical. This 0.2 V difference is within standard LED forward voltage tolerance and does not necessitate circuit modification.
Q: Are all substitute parts RoHS and REACH compliant? A: Yes. All listed substitute parts are RoHS Compliant and REACH Unaffected, matching the regulatory status of the original part.
Q: What is the difference in thermal resistance? A: The original part has 12°C/W thermal resistance, while XLamp® XR-E substitutes have 8°C/W. Lower thermal resistance improves heat dissipation and reduces junction temperature during operation.
Q: Are the substitute parts available in the same packaging format? A: All substitute parts are supplied in Tape & Reel (TR) packaging, suitable for automated pick-and-place assembly. The original part was supplied without specified packaging format.
Q: How do the luminous flux outputs compare? A: All parts, including the original and substitutes, deliver 77 lm (74–81 lm range) at 25°C and 350 mA test current. Luminous flux is equivalent across all listed parts.
Q: What is the viewing angle for all parts? A: All parts maintain a 90° viewing angle, ensuring identical light distribution characteristics.
Q: Are there differences in moisture sensitivity? A: No. All parts are classified as MSL 4 (72 Hours), requiring identical moisture control and handling procedures during storage and assembly.
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