XRCWHT-L1-0000-008F4 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-008F4 is a CreeLED XLamp® XR-C neutral white LED (4750K) in 3529 SMD package, rated for 350mA operation at 4.6V forward voltage with 77lm luminous flux at 25°C. This part is classified as obsolete. Equivalent substitute parts from the active XLamp® XR-E series are available to maintain design continuity and ensure supply chain availability for applications requiring neutral white LED lighting in the 4000K to 4750K color temperature range.

Key Parameters

Parameter	Value
Manufacturer Part Number	XRCWHT-L1-0000-008F4
Manufacturer	CreeLED, Inc.
Series	XLamp® XR-C
Product Status	Obsolete
Color	White, Neutral
CCT (K)	4750K
Flux @ 25°C, 350mA	77lm (74lm ~ 81lm)
Forward Voltage (Vf) Typical	4.6V
Test Current	350mA
Maximum Current	500mA
Lumens/Watt @ 350mA	63 lm/W
CRI (Color Rendering Index)	75 (Typ)
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 (Moisture Sensitivity Level)	4 (72 Hours)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of XRCWHT-L1-0000-008F4 is based on the following criteria:

Mechanical Compatibility: All substitute parts maintain identical package type (3529 SMD), physical dimensions (9.00mm x 7.00mm), and mounting height (4.60mm), ensuring direct PCB footprint compatibility.

Electrical Compatibility: Substitute parts operate at the same test current (350mA), produce identical luminous flux (77lm at 25°C), maintain equivalent CRI (75 Typ), and share the same 90° viewing angle. Forward voltage differs slightly (3.3V vs 4.6V), which is within acceptable tolerance for most LED driver circuits.

Color Temperature Range: Substitutes span 4000K to 4750K, encompassing the original 4750K specification. Parts are grouped by CCT: 4000K (008E5 variants), 4300K (008F5 variants), and 4750K (008F4 variants).

Series Upgrade: All substitutes are from the active XLamp® XR-E series, providing improved thermal performance (8°C/W vs 12°C/W) and higher maximum current rating (700mA vs 500mA).

Packaging Variants: Substitutes are available in standard Tape & Reel (TR) packaging with two reel options: standard (L1-0000) and R250 (L1-R250).

Parameter Comparison

Parameter	XRCWHT-L1-0000-008F4 (Main)	XREWHT-L1-0000-008E4	XREWHT-L1-0000-008E5	XREWHT-L1-0000-008F4	XREWHT-L1-0000-008F5	XREWHT-L1-R250-008E4	XREWHT-L1-R250-008E5	XREWHT-L1-R250-008F4	XREWHT-L1-R250-008F5
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
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
CCT (K)	4750K	4500K	4000K	4750K	4300K	4500K	4000K	4750K	4300K
Flux @ 25°C, 350mA (lm)	77	77	77	77	77	77	77	77	77
Forward Voltage (Vf) Typical	4.6V	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
Maximum Current	500mA	700mA	700mA	700mA	700mA	700mA	700mA	700mA	700mA
Lumens/Watt @ 350mA	63 lm/W	67 lm/W	67 lm/W	67 lm/W	67 lm/W	67 lm/W	67 lm/W	67 lm/W	67 lm/W
CRI (Color Rendering Index)	75 (Typ)	75 (Typ)	75 (Typ)	75 (Typ)	75 (Typ)	75 (Typ)	75 (Typ)	75 (Typ)	75 (Typ)
Viewing Angle	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)
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
Height - Seated (Max)	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
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
MSL (Moisture Sensitivity Level)	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

Engineering Selection Recommendations

Primary Selection: XREWHT-L1-0000-008F4 is the direct functional equivalent, matching the original 4750K color temperature specification while offering improved thermal performance and higher current capability from the active XLamp® XR-E series.

Alternative Color Temperature Options: XREWHT-L1-0000-008E4 (4500K) and XREWHT-L1-0000-008E5 (4000K) are suitable for applications where neutral white color temperature can be adjusted within the 4000K to 4500K range without affecting system performance.

Packaging Consideration: Standard Tape & Reel (L1-0000) variants are recommended for general production use. R250 reel variants (L1-R250) are available for high-volume manufacturing environments requiring 250mm reel specifications.

Compliance: All substitute parts maintain RoHS compliance, REACH unaffected status, and identical MSL rating (4, 72 Hours), ensuring regulatory and environmental compatibility with the original design.

Thermal Advantage: XLamp® XR-E substitutes provide 33% lower thermal resistance (8°C/W vs 12°C/W), enabling improved thermal management and extended operational life in thermally constrained applications.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-008F4 be used as a direct replacement for XRCWHT-L1-0000-008F4?

A: Yes. Both parts share identical 3529 SMD package dimensions, 77lm luminous flux at 350mA, 90° viewing angle, and 75 CRI. The 0.2V forward voltage difference (3.3V vs 4.6V) is within standard LED driver tolerance and does not require circuit modification.

Q: What is the difference between standard (L1-0000) and R250 (L1-R250) packaging?

A: Both variants contain identical LED components and electrical specifications. The difference is reel diameter: standard Tape & Reel uses conventional reel size, while R250 uses 250mm reels for high-volume automated assembly lines. Select based on your manufacturing equipment compatibility.

Q: Are there color temperature restrictions when selecting a substitute?

A: The original part operates at 4750K. Substitutes are available in 4000K, 4300K, and 4750K. Selection depends on application requirements. If exact 4750K is required, use XREWHT-L1-0000-008F4 or XREWHT-L1-R250-008F4. Cooler temperatures (4000K, 4300K) are suitable for applications tolerating broader neutral white ranges.

Q: Does the improved thermal resistance of XR-E substitutes affect circuit design?

A: No. The lower thermal resistance (8°C/W vs 12°C/W) is a performance improvement that reduces junction temperature under identical operating conditions. Existing circuit designs require no modification.

Q: Are all substitute parts in active production status?

A: Yes. All XREWHT variants listed are active products from CreeLED. The original XRCWHT-L1-0000-008F4 is obsolete, making active XR-E substitutes the recommended long-term supply solution.

Q: Do substitute parts maintain the same moisture sensitivity level?

A: Yes. All parts carry MSL rating 4 (72 Hours), requiring identical storage and handling procedures. No changes to component storage or reflow processes are necessary.

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