XRCWHT-L1-0000-00610 LED XLamp® XR-C Cool White Surface Mount Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-00610 is a CreeLED XLamp® XR-C cool white surface mount LED in 3529 (9073 Metric) package configuration. This part is classified as obsolete, making substitute parts necessary for ongoing production and design updates. The XLamp® XR-C series has been superseded by the XLamp® XR-E series, which maintains electrical and mechanical compatibility while offering improved thermal performance and extended product lifecycle support.

Key Parameters

Parameter	Value
Manufacturer Part Number	XRCWHT-L1-0000-00610
Manufacturer	CreeLED, Inc.
Series	XLamp® XR-C
Product Status	Obsolete
Color	White
Flux @ 25°C, 350mA	65 lm (62–67 lm range)
Forward Voltage (Vf) Typical	4.6V
Test Current	350 mA
Maximum Current	500 mA
Lumens per Watt @ 350mA	53 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-L1-0000-00610 is based on 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° — identical optical characteristics
Flux @ 25°C, 350mA: 65 lm (62–67 lm range) — equivalent luminous output
Test Current: 350 mA — standard operating point
Color: White — functional requirement
Thermal Resistance: 8°C/W (substitute) vs. 12°C/W (original) — improved thermal performance acceptable
Forward Voltage (Vf): 3.3V (substitute) vs. 4.6V (original) — within acceptable circuit tolerance for most applications
Lumens per Watt: 56 lm/W (substitute) vs. 53 lm/W (original) — improved efficiency acceptable

All substitute parts are from the XLamp® XR-E series, which represents the direct product line evolution from XLamp® XR-C. The XR-E variants maintain identical package geometry, optical performance, and luminous flux specifications while offering superior thermal management and active product status.

Parameter Comparison

Parameter	XRCWHT-L1-0000-00610 (Original)	XREWHT-L1-0000-00601	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
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 (lm)	65 (62–67)	65 (62–67)	65 (62–67)	65 (62–67)	65 (62–67)	65 (62–67)	65 (62–67)	65 (62–67)	65 (62–67)	65 (62–67)	65 (62–67)
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 per 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
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)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
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
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 substitute parts are qualified replacements for XRCWHT-L1-0000-00610 based on the following engineering criteria:

Product Lifecycle Status: The original XRCWHT-L1-0000-00610 is obsolete. All substitute parts are active products from CreeLED, ensuring long-term availability, technical support, and supply chain continuity.

Regulatory Compliance: All substitute parts maintain RoHS Compliance and REACH Unaffected status, matching the original part's regulatory posture. Moisture Sensitivity Level (MSL) remains constant at 4 (72 Hours), requiring identical handling and storage protocols.

Electrical Compatibility: Substitute parts operate at 3.3V typical forward voltage compared to the original 4.6V. This 0.2V reduction is within acceptable tolerance for standard LED driver circuits and current-limiting applications. Luminous flux output remains constant at 65 lm (62–67 lm range) at 350 mA test current, ensuring equivalent brightness performance.

Thermal Performance: Substitute parts feature improved thermal resistance of 8°C/W compared to the original 12°C/W, resulting in lower junction temperatures and extended operational life under identical current conditions.

Mechanical Compatibility: All substitute parts maintain identical package geometry (3529 / 9073 Metric), footprint dimensions (9.00 mm × 7.00 mm), and seated height (4.60 mm), enabling direct PCB assembly without layout modifications.

Optical Characteristics: Viewing angle remains constant at 90°, preserving beam pattern and light distribution characteristics in existing optical designs.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-006B1 through XREWHT-L1-0000-006B9 be used interchangeably with XRCWHT-L1-0000-00610?

A: Yes. All substitute parts share identical package geometry, optical specifications, and luminous flux output. The primary differences are forward voltage (3.3V vs. 4.6V) and improved thermal resistance (8°C/W vs. 12°C/W). These differences are compatible with standard LED circuit designs and do not require PCB modifications.

Q: What is the difference between XREWHT-L1-0000-00601 and the other XREWHT variants?

A: XREWHT-L1-0000-00601 is specified with a color temperature range of 5000K–10000K (cool white), while XREWHT-L1-0000-006B1 through 006B9 are specified as neutral or warm white variants. All maintain identical electrical and mechanical parameters. Selection depends on the required color temperature for the application.

Q: Will the lower forward voltage (3.3V) of substitute parts affect my circuit design?

A: The 0.2V reduction in forward voltage is typically accommodated by standard LED driver circuits and current-limiting resistor designs. For constant-current driver applications, no circuit modification is required. For resistor-based current limiting, recalculation may optimize performance but is not mandatory for functional compatibility.

Q: Are the thermal improvements of substitute parts (8°C/W vs. 12°C/W) beneficial?

A: Yes. Lower thermal resistance reduces junction temperature at identical operating currents, extending LED lifespan and improving color stability. This represents an improvement over the original part with no negative impact on existing designs.

Q: Do substitute parts require different handling or storage procedures?

A: No. All substitute parts maintain MSL 4 (72 Hours) moisture sensitivity, identical to the original part. Standard ESD precautions and dry storage conditions apply.

Q: Can I mix XRCWHT-L1-0000-00610 and substitute parts in the same assembly?

A: While electrically compatible, mixing parts with different forward voltages (4.6V vs. 3.3V) in series-connected LED strings may result in uneven brightness distribution. For uniform brightness in multi-LED designs, use parts from a single manufacturer lot or specification.

Q: What is the packaging format for substitute parts?

A: All substitute parts are supplied in Tape & Reel (TR) format, suitable for automated pick-and-place assembly. The original XRCWHT-L1-0000-00610 packaging format is not specified in available data.

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