Request Quote
(Ships tomorrow)
Equivalent & Substitute Parts for XRCWHT-L1-0000-008B4
Part Overview
The CreeLED XRCWHT-L1-0000-008B4 is an XLamp® XR-C series white LED in 3529 (9073 Metric) surface mount package, rated for 350mA operation at 4.6V forward voltage. This part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The XR-C series has been superseded by the XLamp® XR-E series, which maintains mechanical and electrical compatibility while offering improved thermal characteristics and active product status.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | XRCWHT-L1-0000-008B4 | — |
| Series | XLamp® XR-C | — |
| Product Status | Obsolete | — |
| Color | White | — |
| Forward Voltage (Vf) | 4.6 | V |
| Test Current | 350 | mA |
| Maximum Current | 500 | mA |
| Luminous Flux @ 25°C, 350mA | 77 (74–81) | lm |
| Lumens per Watt | 63 | lm/W |
| Viewing Angle | 90 | ° |
| Package / Case | 3529 (9073 Metric) | — |
| Dimensions (L × W) | 0.354" × 0.276" (9.00mm × 7.00mm) | — |
| Height (Seated, Max) | 0.181" (4.60mm) | — |
| Thermal Resistance | 12 | °C/W |
| Mounting Type | Surface Mount | — |
| RoHS Status | RoHS Compliant | — |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) | — |
Substitute Part Grouping Explanation
Substitution of XRCWHT-L1-0000-008B4 is based on the following criteria:
Mechanical Compatibility:
- Identical package type: 3529 (9073 Metric)
- Identical footprint dimensions: 0.354" L × 0.276" W (9.00mm × 7.00mm)
- Identical seated height: 0.181" (4.60mm)
- Surface mount configuration maintained
Electrical Compatibility:
- Test current: 350mA (identical)
- Luminous flux @ 25°C: 77lm (74–81lm range, identical)
- Viewing angle: 90° (identical)
- Color: White (maintained across all substitutes)
Key Difference:
- Forward voltage: XR-E series operates at 3.3V (vs. 4.6V for XR-C)
- Thermal resistance: XR-E series provides 8°C/W (vs. 12°C/W for XR-C)
- Product status: All XR-E substitutes are Active (vs. Obsolete for XR-C)
All substitute parts are CreeLED XLamp® XR-E series components with identical optical output, mechanical form factor, and compliance certifications. The lower forward voltage and improved thermal performance of XR-E variants provide operational advantages in new designs.
Parameter Comparison
| Parameter | XRCWHT-L1-0000-008B4 (Main) | XREWHT-L1-0000-008A4 | 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, Neutral | White | White | White | White | White | White | White | White | White |
| CCT (K) | — | 4000K | — | — | — | — | — | — | — | — | — |
| Forward Voltage (Vf) Typ | 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 |
| Luminous Flux @ 25°C, 350mA | 77lm (74–81lm) | 77lm (74–81lm) | 77lm (74–81lm) | 77lm (74–81lm) | 77lm (74–81lm) | 77lm (74–81lm) | 77lm (74–81lm) | 77lm (74–81lm) | 77lm (74–81lm) | 77lm (74–81lm) | 77lm (74–81lm) |
| Lumens per Watt | 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) |
| Dimensions (L × W) | 0.354" × 0.276" (9.00mm × 7.00mm) | 0.354" × 0.276" (9.00mm × 7.00mm) | 0.354" × 0.276" (9.00mm × 7.00mm) | 0.354" × 0.276" (9.00mm × 7.00mm) | 0.354" × 0.276" (9.00mm × 7.00mm) | 0.354" × 0.276" (9.00mm × 7.00mm) | 0.354" × 0.276" (9.00mm × 7.00mm) | 0.354" × 0.276" (9.00mm × 7.00mm) | 0.354" × 0.276" (9.00mm × 7.00mm) | 0.354" × 0.276" (9.00mm × 7.00mm) | 0.354" × 0.276" (9.00mm × 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 | 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 |
| 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 XLamp® XR-E substitutes maintain full mechanical and optical compatibility with the obsolete XRCWHT-L1-0000-008B4. Selection among the substitute parts is based on product availability and packaging requirements:
Primary Recommendation: XREWHT-L1-0000-008B4 (XLamp® XR-E equivalent) provides direct parametric equivalence with the main part. This variant is Active status, available in Tape & Reel packaging, and offers improved thermal performance (8°C/W vs. 12°C/W). The 0.2V reduction in forward voltage (3.3V vs. 4.6V) reduces power dissipation and improves efficiency to 67 lm/W.
Alternative Selections:
- XREWHT-L1-0000-008A4: Specified for 4000K neutral white color temperature, suitable for applications requiring defined CCT.
- XREWHT-L1-0000-008B1 through XREWHT-L1-0000-008B9: All variants maintain identical electrical and mechanical specifications. Selection depends on inventory availability and specific color temperature requirements not explicitly defined in the main part specification.
All substitutes are RoHS Compliant, REACH Unaffected, and maintain MSL 4 (72 Hours) classification, ensuring compliance with environmental and regulatory requirements.
Frequently Asked Questions (FAQ)
Q: Can XREWHT-L1-0000-008B4 directly replace XRCWHT-L1-0000-008B4 on existing PCBs?
A: Yes. Both parts use identical 3529 (9073 Metric) surface mount packages with matching footprint dimensions (9.00mm × 7.00mm) and seated height (4.60mm). No PCB layout modifications are required.
Q: What is the impact of the 0.2V forward voltage difference?
A: The XR-E series operates at 3.3V versus 4.6V for the XR-C series. This reduces power dissipation by approximately 5.7% at 350mA test current. Circuit designs must accommodate this lower voltage requirement; existing current-limiting resistor values may require adjustment to maintain 350mA operation.
Q: Are all XR-E variants electrically interchangeable?
A: Yes, for the parameters specified. All XR-E variants (XREWHT-L1-0000-008B1 through XREWHT-L1-0000-008B9) share identical forward voltage (3.3V), test current (350mA), luminous flux (77lm), viewing angle (90°), and thermal resistance (8°C/W). Differences in part number suffixes reflect internal binning or color temperature variations not detailed in the provided specifications.
Q: Why is the thermal resistance lower in XR-E variants?
A: The XLamp® XR-E series incorporates improved thermal design, reducing junction-to-case thermal resistance from 12°C/W to 8°C/W. This enhancement allows better heat dissipation and supports higher ambient temperature operation.
Q: What is the significance of MSL 4 (72 Hours)?
A: Moisture Sensitivity Level 4 requires that components be stored in dry conditions and baked before reflow soldering if exposed to humidity for more than 72 hours. This applies uniformly to both the main part and all substitutes.
Q: Can I use XREWHT-L1-0000-008A4 if my application requires neutral white color?
A: XREWHT-L1-0000-008A4 is specified for 4000K neutral white color temperature. If your application requires this specific CCT, this variant is suitable. Other variants do not specify CCT in their documentation.
Q: Are there packaging differences between substitutes?
A: The main part (XRCWHT-L1-0000-008B4) is listed without explicit packaging specification. All XR-E substitutes are supplied in Tape & Reel (TR) packaging. Confirm packaging requirements with your procurement process.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts