XRCWHT-L1-0000-005B7 LED XLamp® XR-C Warm White Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-005B7 is a CreeLED XLamp® XR-C warm white surface mount LED in 3529 (9073 Metric) package configuration. This part is classified as obsolete. Equivalent and substitute parts from the active XLamp® XR-E series are available with compatible electrical and mechanical specifications, enabling direct functional replacement in applications requiring warm white LED lighting at 350mA nominal current.

Key Parameters

Parameter	Value
Manufacturer Part Number	XRCWHT-L1-0000-005B7
Manufacturer	CreeLED, Inc.
Series	XLamp® XR-C
Product Status	Obsolete
Color	White
Flux @ 25°C, 350mA	59lm (57lm ~ 62lm)
Current - Test	350mA
Voltage - Forward (Vf) Typ	4.6V
Lumens/Watt @ 350mA	48 lm/W
Current - Max	500mA
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	12°C/W
Mounting Type	Surface Mount
RoHS Status	RoHS Compliant
MSL Rating	4 (72 Hours)

Substitute Part Grouping Explanation

Substitution of XRCWHT-L1-0000-005B7 is based on the following critical parameters that must remain compatible:

Mechanical Compatibility: All substitute parts maintain identical package type (3529/9073 Metric), physical dimensions (9.00mm x 7.00mm), and maximum seated height (4.60mm), ensuring PCB footprint and assembly compatibility.

Electrical Compatibility: Substitute parts operate at 350mA nominal test current with identical luminous flux output (59lm at 25°C). Forward voltage differs slightly (3.3V vs. 4.6V), which is within acceptable circuit design tolerance for LED driver circuits. All parts support the same maximum current rating or higher.

Optical Compatibility: All substitute parts maintain 90° viewing angle and white color specification, preserving optical performance in the application.

Regulatory Compliance: All substitute parts maintain RoHS compliance, MSL 4 rating, and identical moisture sensitivity specifications.

The substitute parts are divided into two groups based on product status and thermal characteristics:

Group 1 - Active Status with Enhanced Thermal Performance: XREWHT-L1-0000-005E8, XREWHT-L1-0000-005B6, XREWHT-L1-0000-005B7, XREWHT-L1-0000-005B8, XREWHT-L1-0000-005B9. These XLamp® XR-E parts feature improved thermal resistance (8°C/W vs. 12°C/W) and higher maximum current ratings (700mA).

Group 2 - Active Status with Standard Thermal Performance: XREWHT-L1-R250-005B6, XREWHT-L1-R250-005B7, XREWHT-L1-R250-005B8, XREWHT-L1-R250-005B9. These XLamp® XR-E parts maintain 8°C/W thermal resistance with R250 package variant designation.

Parameter Comparison

Parameter	XRCWHT-L1-0000-005B7 (Main)	XREWHT-L1-0000-005E8	XREWHT-L1-0000-005B6	XREWHT-L1-0000-005B7	XREWHT-L1-0000-005B8	XREWHT-L1-0000-005B9	XREWHT-L1-R250-005B6	XREWHT-L1-R250-005B7	XREWHT-L1-R250-005B8	XREWHT-L1-R250-005B9
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
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active
Color	White	White, Warm	White	White	White	White	White	White	White	White
CCT (K)	—	2700K	—	—	—	—	—	—	—	—
Flux @ 25°C, 350mA	59lm (57–62lm)	59lm (57–62lm)	59lm (57–62lm)	59lm (57–62lm)	59lm (57–62lm)	59lm (57–62lm)	59lm (57–62lm)	59lm (57–62lm)	59lm (57–62lm)	59lm (57–62lm)
Current - Test	350mA	350mA	350mA	350mA	350mA	350mA	350mA	350mA	350mA	350mA
Voltage - Forward (Vf) Typ	4.6V	3.3V	3.3V	3.3V	3.3V	3.3V	3.3V	3.3V	3.3V	3.3V
Lumens/Watt @ 350mA	48 lm/W	51 lm/W	51 lm/W	51 lm/W	51 lm/W	51 lm/W	51 lm/W	51 lm/W	51 lm/W	51 lm/W
Current - Max	500mA	700mA	700mA	700mA	700mA	700mA	—	—	—	—
Viewing Angle	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)
Size / Dimension	9.00mm x 7.00mm	9.00mm x 7.00mm	9.00mm x 7.00mm	9.00mm x 7.00mm	9.00mm x 7.00mm	9.00mm x 7.00mm	9.00mm x 7.00mm	9.00mm x 7.00mm	9.00mm x 7.00mm	9.00mm x 7.00mm
Height - Seated (Max)	4.60mm	4.60mm	4.60mm	4.60mm	4.60mm	4.60mm	4.60mm	4.60mm	4.60mm	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
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
MSL Rating	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)

Engineering Selection Recommendations

All listed substitute parts are from the active XLamp® XR-E product line and maintain full RoHS compliance and MSL 4 moisture sensitivity specifications identical to the obsolete XRCWHT-L1-0000-005B7.

Primary Substitutes (Enhanced Thermal Performance): XREWHT-L1-0000-005B6, XREWHT-L1-0000-005B7, XREWHT-L1-0000-005B8, XREWHT-L1-0000-005B9 are recommended for new designs and production transitions. These parts feature improved thermal resistance (8°C/W vs. 12°C/W), higher maximum current capability (700mA vs. 500mA), and active product status with ongoing manufacturer support.

Warm Color Temperature Option: XREWHT-L1-0000-005E8 provides explicit 2700K warm white color temperature specification with 80 CRI (Color Rendering Index) rating, suitable for applications requiring defined color temperature performance.

R250 Package Variant: XREWHT-L1-R250-005B6, XREWHT-L1-R250-005B7, XREWHT-L1-R250-005B8, XREWHT-L1-R250-005B9 maintain identical electrical and thermal specifications with R250 package designation, available for specific supply chain or procurement requirements.

Forward voltage difference (3.3V vs. 4.6V) is within standard LED driver circuit tolerance and does not require circuit redesign for constant-current applications.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-005B6 directly replace XRCWHT-L1-0000-005B7 on existing PCBs?

A: Yes. Both parts use identical 3529 (9073 Metric) package with matching footprint dimensions (9.00mm x 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 (4.6V to 3.3V)?

A: For constant-current LED driver circuits, this difference is absorbed by the driver's voltage regulation and does not affect circuit operation. The lower forward voltage of XR-E parts results in slightly reduced power dissipation, which is beneficial for thermal management.

Q: Why do XREWHT-L1-R250 parts show no maximum current specification?

A: The R250 package variant designation indicates a specific supply configuration. The electrical performance remains equivalent to standard XREWHT parts. Consult the detailed datasheet for R250-specific current ratings if required.

Q: Are all substitute parts suitable for high-temperature applications?

A: The improved thermal resistance of XR-E parts (8°C/W vs. 12°C/W) provides better heat dissipation. For applications with elevated ambient temperatures or high-density LED arrays, XR-E substitutes offer superior thermal performance.

Q: What is the difference between XREWHT-L1-0000-005E8 and other XREWHT-L1-0000 variants?

A: XREWHT-L1-0000-005E8 specifies explicit color temperature (2700K warm white) and CRI rating (80 Typ), making it suitable for applications requiring defined color rendering. Other variants do not specify CCT or CRI values.

Q: Is inventory availability a factor in part selection?

A: All substitute parts are listed as active with current inventory. Specific availability should be confirmed with the supplier for production quantities and lead times.

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