Equivalent & Substitute Parts for XRCWHT-L1-0000-005B8

Part Overview

The XRCWHT-L1-0000-005B8 is a CreeLED XLamp® XR-C warm white surface mount LED in 3529 (9073 Metric) package format. This part is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The XLamp® XR-C series has been superseded by the XLamp® XR-E series, which maintains compatible electrical and mechanical specifications while offering active product status and improved thermal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.

Key Parameters

Parameter	Value
Manufacturer Part Number	XRCWHT-L1-0000-005B8
Manufacturer	CreeLED, Inc.
Series	XLamp® XR-C
Product Status	Obsolete
Color	White
Flux @ 25°C, 350mA	59lm (57lm ~ 62lm)
Forward Voltage (Vf) Typical	4.6V
Test Current	350mA
Maximum Current	500mA
Lumens/Watt @ 350mA	48 lm/W
Viewing Angle	90°
Package / Case	3529 (9073 Metric)
Mounting Type	Surface Mount
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
RoHS Status	RoHS Compliant
MSL Rating	4 (72 Hours)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution for XRCWHT-L1-0000-005B8 is determined by the following critical parameters:

Mechanical Compatibility: Package type (3529/9073 Metric), mounting type (Surface Mount), physical dimensions (9.00mm x 7.00mm x 4.60mm max height), and viewing angle (90°) must remain identical.

Electrical Compatibility: Flux output at 350mA test current (59lm ±3lm range), forward voltage tolerance, and maximum current rating must support the same operating conditions.

Regulatory & Environmental: RoHS compliance, MSL rating (4), and REACH status must be maintained.

All substitute parts listed are from the XLamp® XR-E series, which shares identical mechanical packaging and optical characteristics with the obsolete XR-C series while providing active product status and improved thermal efficiency (8°C/W vs. 12°C/W).

Parameter Comparison

Parameter	XRCWHT-L1-0000-005B8 (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)
Forward Voltage (Vf) Typical	4.6V	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
Maximum Current	500mA	700mA	700mA	700mA	700mA	700mA	—	—	—	—
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
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)
REACH Status	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 XLamp® XR-E series and maintain full RoHS compliance and REACH unaffected status. The primary distinction between substitute options is packaging format and correlated color temperature specification.

For standard applications: XREWHT-L1-0000-005B6, XREWHT-L1-0000-005B7, XREWHT-L1-0000-005B8, and XREWHT-L1-0000-005B9 are supplied in Tape & Reel (TR) packaging and are functionally equivalent to the obsolete XRCWHT-L1-0000-005B8.

For warm white color temperature specification: XREWHT-L1-0000-005E8 is specified at 2700K with CRI 80 (Typ) and is supplied in Tape & Reel (TR) packaging.

For alternative reel configurations: XREWHT-L1-R250-005B6, XREWHT-L1-R250-005B7, XREWHT-L1-R250-005B8, and XREWHT-L1-R250-005B9 provide the same electrical and mechanical specifications with R250 reel designation.

All substitute parts deliver improved thermal performance (8°C/W vs. 12°C/W) and higher luminous efficacy (51 lm/W vs. 48 lm/W) compared to the obsolete XR-C series part.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-005B6 directly replace XRCWHT-L1-0000-005B8 on existing PCBs?

A: Yes. Both parts use identical 3529 (9073 Metric) surface mount packages with matching footprints, dimensions (9.00mm x 7.00mm), and maximum seated height (4.60mm). No PCB layout modifications are required.

Q: What is the difference between XREWHT-L1-0000-005B8 and XREWHT-L1-R250-005B8?

A: The electrical and mechanical specifications are identical. The difference is packaging format: XREWHT-L1-0000-005B8 is supplied in standard Tape & Reel (TR), while XREWHT-L1-R250-005B8 uses an R250 reel configuration. Select based on your assembly equipment compatibility.

Q: Why does XREWHT-L1-0000-005E8 specify 2700K color temperature while others do not?

A: XREWHT-L1-0000-005E8 is a warm white variant with defined correlated color temperature (2700K) and CRI specification (80 Typ). Other XREWHT variants do not specify CCT in the provided data. Select XREWHT-L1-0000-005E8 only if warm white color temperature is a design requirement.

Q: Is the forward voltage difference (4.6V vs. 3.3V) significant for circuit design?

A: The 0.2V difference between XRCWHT-L1-0000-005B8 (4.6V) and XR-E substitutes (3.3V) is within typical LED forward voltage tolerance ranges. Verify that your current-limiting circuit accommodates this specification. The lower forward voltage of XR-E parts may result in slightly reduced power dissipation.

Q: What is the advantage of the improved thermal resistance (8°C/W vs. 12°C/W)?

A: Lower thermal resistance improves heat dissipation from the LED junction to the PCB, resulting in lower junction temperatures at equivalent drive currents. This extends LED lifetime and maintains more stable light output over operating temperature ranges.

Q: Are all substitute parts RoHS compliant and REACH unaffected?

A: Yes. All listed substitute parts maintain RoHS compliance and REACH unaffected status, matching the regulatory profile of the obsolete XRCWHT-L1-0000-005B8.

Q: Can I use XREWHT parts at the 500mA maximum current of the original part?

A: XR-E substitutes are rated for 700mA maximum current, exceeding the 500mA rating of the obsolete XR-C part. Operation at 350mA test current is identical between all parts. Higher current operation is permissible within XR-E specifications but requires thermal management verification.

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