XRCWHT-L1-0000-00B09 LED XLamp® XR-C White Surface Mount Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-00B09 is a CreeLED XLamp® XR-C white surface mount LED in 3529 (9073 Metric) package configuration. This part is classified as obsolete, making direct replacement necessary for ongoing production and maintenance applications. The XLamp® XR-C series has been superseded by the XLamp® XR-E series, which maintains electrical and mechanical compatibility while offering improved thermal performance and active product status.

Key Parameters

Parameter	Value
Manufacturer Part Number	XRCWHT-L1-0000-00B09
Manufacturer	CreeLED, Inc.
Series	XLamp® XR-C
Product Status	Obsolete
Color	White
Flux @ 25°C, 350mA	97 lm (94–100 lm range)
Forward Voltage (Vf) Typical	4.6V
Test Current	350 mA
Maximum Current	500 mA
Lumens/Watt @ 350mA	79 lm/W
Viewing Angle	90°
Package / Case	3529 (9073 Metric)
Mounting Type	Surface Mount
Size / Dimension	0.354" L × 0.276" W (9.00 mm × 7.00 mm)
Height - Seated (Max)	0.181" (4.60 mm)
Thermal Resistance	12°C/W
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	4 (72 Hours)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of XRCWHT-L1-0000-00B09 is determined by the following critical parameters that must remain constant or compatible:

Mandatory Compatibility Parameters:

Package / Case: 3529 (9073 Metric) — identical footprint and height
Mounting Type: Surface Mount — same assembly process
Viewing Angle: 90° — optical performance requirement
Flux @ 25°C, 350mA: 97 lm (94–100 lm range) — luminous output specification
Test Current: 350 mA — standard operating point
Color: White — spectral output category

Electrical Tolerance Parameters:

Forward Voltage (Vf): 3.3V to 4.6V range acceptable for circuit compatibility
Lumens/Watt: 79–84 lm/W range maintains efficiency class
Maximum Current: 500 mA minimum required for design margin

Regulatory & Environmental Parameters:

RoHS Compliant status required
MSL 4 (72 Hours) handling requirement
REACH Unaffected status maintained

All substitute parts listed below are from the XLamp® XR-E series, which shares identical mechanical dimensions, optical characteristics, and regulatory compliance while offering improved thermal resistance (8°C/W vs. 12°C/W) and active product status.

Parameter Comparison

Parameter	XRCWHT-L1-0000-00B09 (Main)	XREWHT-L1-0000-00B01	XREWHT-L1-0000-00B05	XREWHT-L1-0000-00B07	XREWHT-L1-0000-00B08	XREWHT-L1-0000-00B09 (XR-E)	XREWHT-L1-0000-00B10	XREWHT-L1-0000-00B37	XREWHT-L1-0000-00BB1	XREWHT-L1-0000-00BB2	XREWHT-L1-0000-00BB3
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, Cool	White	White	White	White	White	White	White	White	White
Flux @ 25°C, 350mA	97 lm (94–100 lm)	97 lm (94–100 lm)	97 lm (94–100 lm)	97 lm (94–100 lm)	97 lm (94–100 lm)	97 lm (94–100 lm)	97 lm (94–100 lm)	97 lm (94–100 lm)	97 lm (94–100 lm)	97 lm (94–100 lm)	97 lm (94–100 lm)
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	350 mA	350 mA	350 mA	350 mA	350 mA	350 mA	350 mA	350 mA	350 mA	350 mA	350 mA
Lumens/Watt @ 350mA	79 lm/W	84 lm/W	84 lm/W	84 lm/W	84 lm/W	84 lm/W	84 lm/W	84 lm/W	84 lm/W	84 lm/W	84 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 × 0.276" W (9.00 mm × 7.00 mm)	0.354" L × 0.276" W (9.00 mm × 7.00 mm)	0.354" L × 0.276" W (9.00 mm × 7.00 mm)	0.354" L × 0.276" W (9.00 mm × 7.00 mm)	0.354" L × 0.276" W (9.00 mm × 7.00 mm)	0.354" L × 0.276" W (9.00 mm × 7.00 mm)	0.354" L × 0.276" W (9.00 mm × 7.00 mm)	0.354" L × 0.276" W (9.00 mm × 7.00 mm)	0.354" L × 0.276" W (9.00 mm × 7.00 mm)	0.354" L × 0.276" W (9.00 mm × 7.00 mm)	0.354" L × 0.276" W (9.00 mm × 7.00 mm)
Height - Seated (Max)	0.181" (4.60 mm)	0.181" (4.60 mm)	0.181" (4.60 mm)	0.181" (4.60 mm)	0.181" (4.60 mm)	0.181" (4.60 mm)	0.181" (4.60 mm)	0.181" (4.60 mm)	0.181" (4.60 mm)	0.181" (4.60 mm)	0.181" (4.60 mm)
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
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 are qualified replacements for the obsolete XRCWHT-L1-0000-00B09. Selection criteria are based on product status, regulatory compliance, and thermal performance:

Primary Selection Criteria:

All substitute parts maintain active product status, ensuring long-term supply availability and manufacturing support
All parts are RoHS Compliant and REACH Unaffected, meeting regulatory requirements for new designs and production
All parts share identical mechanical footprint (3529 package, 9.00 mm × 7.00 mm × 4.60 mm max height), enabling direct PCB assembly compatibility without layout modification

Electrical Compatibility:

Forward voltage reduction from 4.6V to 3.3V (typical) represents a 0.2V decrease, which is within acceptable circuit tolerance for most LED driver designs
Luminous flux remains constant at 97 lm (94–100 lm range) at 350 mA test current, maintaining brightness specification
Efficiency improvement from 79 lm/W to 84 lm/W reduces power dissipation and thermal load

Thermal Performance Advantage:

Thermal resistance improvement from 12°C/W to 8°C/W (33% reduction) provides superior heat dissipation, extending LED lifetime and enabling higher ambient temperature operation
Lower junction temperature at equivalent current reduces color shift and maintains lumen maintenance over operational life

Packaging & Handling:

All parts supplied in Tape & Reel (TR) format, compatible with automated pick-and-place assembly
MSL 4 (72 Hours) classification maintained across all substitutes, requiring identical moisture control procedures

Recommended Selection: For general replacement applications, XREWHT-L1-0000-00B05, XREWHT-L1-0000-00B07, XREWHT-L1-0000-00B08, XREWHT-L1-0000-00B09 (XR-E series), or XREWHT-L1-0000-00B10 are functionally equivalent. For applications requiring cool white color temperature specification, XREWHT-L1-0000-00B01 (5000K–10000K CCT, CRI 75 Typ) is specified. For neutral white applications, XREWHT-L1-0000-00BB1, XREWHT-L1-0000-00BB2, or XREWHT-L1-0000-00BB3 are appropriate.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-00B05 directly replace XRCWHT-L1-0000-00B09 without circuit modification?

A: Yes. Both parts share identical package dimensions (3529, 9.00 mm × 7.00 mm), viewing angle (90°), and luminous flux (97 lm at 350 mA). The forward voltage difference (4.6V to 3.3V) is within standard LED driver tolerance. No PCB layout changes are required. Circuit current limiting and thermal management remain unchanged.

Q: What is the significance of the thermal resistance improvement from 12°C/W to 8°C/W?

A: Lower thermal resistance improves heat transfer from the LED junction to the PCB and ambient environment. At equivalent operating current and ambient temperature, the XR-E series junction temperature will be approximately 4°C lower per watt of dissipated power. This extends LED lifetime, reduces color shift, and improves lumen maintenance over time.

Q: Are all XLamp® XR-E white substitutes interchangeable?

A: All listed XLamp® XR-E white parts (XREWHT-L1-0000-00B05, B07, B08, B09, B10, B37, BB1, BB2, BB3) share identical electrical and mechanical specifications. They differ only in internal binning or manufacturing date codes. Selection among these parts is based on availability and supply chain requirements. XREWHT-L1-0000-00B01 differs in color temperature specification (5000K–10000K cool white with CRI 75) and is selected only when cool white color temperature is required.

Q: What handling precautions apply to these surface mount LEDs?

A: All parts are classified MSL 4 (72 Hours), requiring moisture control during storage and handling. Parts must be stored in sealed containers with desiccant at ≤30% relative humidity. Once the package is opened, parts must be used within 72 hours or re-baked at 125°C for 24 hours before assembly. Standard ESD precautions apply during handling and soldering.

Q: Can the XRCWHT-L1-0000-00B09 be used in new designs, or must substitutes be selected?

A: The XRCWHT-L1-0000-00B09 is classified as obsolete and is not recommended for new designs. All new designs must specify an active XLamp® XR-E equivalent from the substitute list. Obsolete parts may be used only for maintenance and repair of existing products where supply is available.

Q: How does the packaging format (Tape & Reel) affect assembly compatibility?

A: All substitute parts are supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly. The 3529 package footprint is compatible with standard pick-and-place equipment and reflow soldering processes. No special assembly procedures are required beyond standard SMD handling protocols.

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