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Equivalent & Substitute Parts for XRCWHT-L1-0000-008B5
Part Overview
The XRCWHT-L1-0000-008B5 is a CreeLED XLamp® XR-C white surface mount LED in 3529 (9073 Metric) package format. This component is classified as obsolete product status. The XLamp® XR-C series has been superseded by the XLamp® XR-E series, which maintains compatible electrical and mechanical specifications while offering improved thermal performance and active product support. Equivalent substitute parts are available from CreeLED's current product portfolio.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | XRCWHT-L1-0000-008B5 |
| Manufacturer | CreeLED, Inc. |
| Series | XLamp® XR-C |
| Product Status | Obsolete |
| Color | White |
| Flux @ 25°C, 350mA | 77lm (74lm ~ 81lm) |
| Forward Voltage (Vf) Typical | 4.6V |
| Test Current | 350mA |
| Maximum Current | 500mA |
| Lumens/Watt @ 350mA | 63 lm/W |
| 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
Substitute parts for XRCWHT-L1-0000-008B5 are selected based on the following critical parameters that determine functional compatibility:
Electrical Compatibility Parameters:
- Test Current: 350mA (maintained across all substitutes)
- Flux Output @ 25°C: 77lm (74lm ~ 81lm) (maintained across all substitutes)
- Viewing Angle: 90° (maintained across all substitutes)
- Color: White (maintained across all substitutes)
Mechanical Compatibility Parameters:
- Package / Case: 3529 (9073 Metric) (maintained across all substitutes)
- Size / Dimension: 0.354" L x 0.276" W (9.00mm x 7.00mm) (maintained across all substitutes)
- Height - Seated (Max): 0.181" (4.60mm) (maintained across all substitutes)
- Mounting Type: Surface Mount (maintained across all substitutes)
Regulatory & Environmental Compliance:
- RoHS Status: RoHS Compliant (maintained across all substitutes)
- Moisture Sensitivity Level (MSL): 4 (72 Hours) (maintained across all substitutes)
- REACH Status: REACH Unaffected (maintained across all substitutes)
All substitute parts are from the CreeLED XLamp® XR-E series, which represents the current generation replacement for the obsolete XLamp® XR-C series. The XLamp® XR-E substitutes maintain identical mechanical footprint, electrical performance at rated current, and light output specifications while providing improved thermal resistance characteristics (8°C/W versus 12°C/W) and active product status.
Parameter Comparison
| Parameter | XRCWHT-L1-0000-008B5 (Main) | XREWHT-L1-0000-008AA | XREWHT-L1-0000-008B1 | XREWHT-L1-0000-008B2 | XREWHT-L1-0000-008B3 | XREWHT-L1-0000-008B4 | XREWHT-L1-0000-008B5 | XREWHT-L1-0000-008B6 | XREWHT-L1-0000-008B7 | XREWHT-L1-0000-008B8 | XREWHT-L1-0000-008B9 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | XLamp® XR-E | XLamp® XR-E |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| Color | White | White, Warm | White | White | White | White | White | White | White | White | White |
| Forward Voltage (Vf) Typical | 4.6V | 3.3V | 3.3V | 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 | 350mA | 350mA |
| Flux @ 25°C, 350mA | 77lm (74lm ~ 81lm) | 77lm (74lm ~ 81lm) | 77lm (74lm ~ 81lm) | 77lm (74lm ~ 81lm) | 77lm (74lm ~ 81lm) | 77lm (74lm ~ 81lm) | 77lm (74lm ~ 81lm) | 77lm (74lm ~ 81lm) | 77lm (74lm ~ 81lm) | 77lm (74lm ~ 81lm) | 77lm (74lm ~ 81lm) |
| Lumens/Watt @ 350mA | 63 lm/W | 67 lm/W | 67 lm/W | 67 lm/W | 67 lm/W | 67 lm/W | 67 lm/W | 67 lm/W | 67 lm/W | 67 lm/W | 67 lm/W |
| Viewing Angle | 90° | 90° | 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) | 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) | 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) | 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 | 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 | Surface Mount | Surface Mount |
| RoHS Status | RoHS Compliant | RoHS Compliant | 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) | 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 | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
All listed substitute parts are active products from CreeLED's current XLamp® XR-E portfolio and maintain full RoHS compliance and REACH unaffected status. The XLamp® XR-E series substitutes provide identical mechanical compatibility and electrical performance at rated operating current (350mA) compared to the obsolete XRCWHT-L1-0000-008B5.
The primary engineering advantage of XLamp® XR-E substitutes is improved thermal resistance (8°C/W versus 12°C/W), which reduces junction temperature rise during operation and extends component reliability. All substitute parts maintain the same 3529 (9073 Metric) package footprint, identical physical dimensions, and equivalent light output specifications (77lm at 350mA test current).
Forward voltage differs slightly between the main part (4.6V typical) and XLamp® XR-E substitutes (3.3V typical). This 0.2V reduction results in lower power dissipation and improved lumens-per-watt efficiency (67 lm/W versus 63 lm/W). Circuit designs must accommodate this voltage difference in current-limiting resistor or driver calculations.
Selection among the available XLamp® XR-E substitute part numbers (XREWHT-L1-0000-008B1 through 008B9, and XREWHT-L1-0000-008AA) is based on inventory availability and specific application requirements. All maintain identical electrical and mechanical specifications.
Frequently Asked Questions (FAQ)
Q: Can XREWHT-L1-0000-008B1 through 008B9 be used as direct replacements for XRCWHT-L1-0000-008B5?
A: Yes. All XLamp® XR-E substitute parts maintain identical mechanical footprint (3529 package, 9.00mm x 7.00mm x 4.60mm), identical light output (77lm at 350mA), and identical viewing angle (90°). The parts are pin-compatible and PCB-compatible without layout modifications.
Q: What is the difference between XREWHT-L1-0000-008AA and the other XLamp® XR-E substitutes?
A: XREWHT-L1-0000-008AA is specified as warm white (2700K CCT), while XREWHT-L1-0000-008B1 through 008B9 are specified as neutral white. All maintain identical electrical performance and mechanical compatibility. Selection depends on color temperature requirements for the application.
Q: Does the forward voltage difference (4.6V main part versus 3.3V substitutes) affect circuit design?
A: Yes. The 0.2V reduction in typical forward voltage must be accounted for in current-limiting resistor calculations and power supply design. Circuits designed for 4.6V operation will operate at slightly lower power dissipation with 3.3V parts. Recalculation of series resistor values is required to maintain target operating current.
Q: Are all substitute parts RoHS compliant?
A: Yes. All XLamp® XR-E substitute parts are RoHS compliant and REACH unaffected, matching the regulatory status of the main part XRCWHT-L1-0000-008B5.
Q: What is the advantage of the improved thermal resistance in XLamp® XR-E parts?
A: The thermal resistance reduction from 12°C/W to 8°C/W means lower junction temperature rise during operation at the same ambient temperature and current. This improves component reliability, extends operational life, and reduces thermal stress on the LED die.
Q: Can these parts be used in existing PCB designs without modification?
A: Yes. The identical 3529 package footprint and physical dimensions (0.354" L x 0.276" W x 0.181" H) allow direct PCB placement without layout changes. However, circuit calculations for current-limiting resistors must be updated to account for the 0.2V forward voltage difference.
Q: What is the moisture sensitivity level for these parts?
A: All parts, including the main part and all substitutes, have MSL 4 rating with 72-hour floor life. Standard moisture control procedures for MSL 4 components apply during storage, handling, and assembly.
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