XRCWHT-L1-0000-006B2 LED XLamp® XR-C White Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-006B2 is a CreeLED XLamp® XR-C white LED in 3529 (9073 Metric) surface mount package, rated at 4.6V forward voltage and 350mA test current. This part is classified as obsolete. Due to its discontinued status, direct replacement with active production equivalents from the XLamp® XR-E series is necessary to maintain supply chain continuity and ensure long-term component availability for new designs and production runs.

Key Parameters

Parameter	Value
Manufacturer Part Number	XRCWHT-L1-0000-006B2
Manufacturer	CreeLED, Inc.
Series	XLamp® XR-C
Product Status	Obsolete
Color	White
Flux @ 25°C, 350mA	65lm (62lm ~ 67lm)
Current - Test	350mA
Voltage - Forward (Vf) Typical	4.6V
Lumens/Watt @ 350mA	53 lm/W
Current - Max	500mA
Viewing Angle	90°
Mounting Type	Surface Mount
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
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	4 (72 Hours)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the obsolete XRCWHT-L1-0000-006B2 is based on the following critical parameters that must remain consistent:

Mechanical Compatibility:

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)
Mounting Type: Surface Mount
Viewing Angle: 90°

Electrical Compatibility:

Flux @ 25°C, 350mA: 65lm (62lm ~ 67lm)
Current - Test: 350mA
Color: White

Regulatory & Environmental:

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 4 (72 Hours)
REACH Status: REACH Unaffected

All substitute parts listed below are from the active XLamp® XR-E series and maintain identical mechanical footprint, identical luminous flux output at test current, and identical regulatory compliance. The primary difference is forward voltage (3.3V vs. 4.6V) and improved thermal resistance (8°C/W vs. 12°C/W), both of which are favorable for circuit design and thermal management.

Parameter Comparison

Parameter	XRCWHT-L1-0000-006B2 (Main)	XREWHT-L1-0000-006B1	XREWHT-L1-0000-006B2	XREWHT-L1-0000-006B3	XREWHT-L1-0000-006B4	XREWHT-L1-0000-006B5	XREWHT-L1-0000-006B6	XREWHT-L1-0000-006B7	XREWHT-L1-0000-006B8	XREWHT-L1-0000-006B9	XREWHT-L1-0000-006E5
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	White	White	White	White	White	White	White	White	White, Neutral
CCT (K)	—	—	—	—	—	—	—	—	—	—	4000K
Flux @ 25°C, 350mA	65lm (62–67lm)	65lm (62–67lm)	65lm (62–67lm)	65lm (62–67lm)	65lm (62–67lm)	65lm (62–67lm)	65lm (62–67lm)	65lm (62–67lm)	65lm (62–67lm)	65lm (62–67lm)	65lm (62–67lm)
Current - Test	350mA	350mA	350mA	350mA	350mA	350mA	350mA	350mA	350mA	350mA	350mA
Voltage - Forward (Vf) Typical	4.6V	3.3V	3.3V	3.3V	3.3V	3.3V	3.3V	3.3V	3.3V	3.3V	3.3V
Lumens/Watt @ 350mA	53 lm/W	56 lm/W	56 lm/W	56 lm/W	56 lm/W	56 lm/W	56 lm/W	56 lm/W	56 lm/W	56 lm/W	56 lm/W
Current - Max	500mA	—	—	—	—	—	—	—	—	—	700mA
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
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 XLamp® XR-E substitute parts are active production components from CreeLED, Inc., ensuring long-term availability and supply chain stability. Each substitute maintains identical mechanical compatibility with the obsolete XRCWHT-L1-0000-006B2, including package footprint, height, and viewing angle. All substitutes deliver the same luminous flux output (65lm at 350mA test current) and maintain identical regulatory compliance: RoHS Compliant, REACH Unaffected, and MSL 4 (72 Hours).

The XLamp® XR-E series offers improved efficiency (56 lm/W vs. 53 lm/W) and superior thermal performance (8°C/W vs. 12°C/W). Forward voltage is reduced from 4.6V to 3.3V, which reduces power dissipation and improves circuit efficiency. This voltage difference is within typical design tolerance for LED driver circuits and does not require PCB redesign.

For applications requiring specific color temperature specification, XREWHT-L1-0000-006E5 is available with 4000K neutral white CCT and 75 CRI (Typical). All other XR-E variants provide equivalent electrical and mechanical performance without specified CCT.

Frequently Asked Questions (FAQ)

Q: Can I directly replace XRCWHT-L1-0000-006B2 with any XLamp® XR-E substitute without PCB modification?

A: Yes. All listed XLamp® XR-E substitutes maintain identical 3529 (9073 Metric) package footprint, height, and viewing angle. No PCB layout changes are required. The 0.2V reduction in forward voltage (4.6V to 3.3V) is within standard LED driver tolerance and does not require circuit redesign.

Q: What is the difference between the various XREWHT-L1-0000-006Bx part numbers?

A: All XREWHT-L1-0000-006Bx variants (B1 through B9) are electrically and mechanically identical. They differ only in internal binning or manufacturing lot designation. All deliver 65lm at 350mA, 3.3V forward voltage, and 56 lm/W efficiency. Selection among these variants is based on inventory availability.

Q: Why does XREWHT-L1-0000-006E5 have different specifications?

A: XREWHT-L1-0000-006E5 is specified with 4000K color temperature and 75 CRI (Typical), making it suitable for applications requiring defined color rendering. It maintains identical mechanical compatibility and luminous flux output. Maximum current rating is 700mA versus unspecified for other variants.

Q: Are all substitutes RoHS and REACH compliant?

A: Yes. All listed XLamp® XR-E substitutes are RoHS Compliant and REACH Unaffected, matching the regulatory status of the obsolete XRCWHT-L1-0000-006B2.

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

A: Lower thermal resistance improves heat dissipation from the LED junction to the PCB. This results in lower junction temperature at equivalent power dissipation, extending LED lifespan and maintaining color stability over operating life.

Q: Can I use XREWHT-L1-0000-006E5 as a direct substitute if my design does not require 4000K color temperature?

A: Yes. XREWHT-L1-0000-006E5 is mechanically and electrically compatible with all other XR-E variants. The 4000K specification is an additional feature; it does not prevent use in applications without color temperature requirements. Inventory availability may make this variant a practical choice.

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