XRCWHT-L1-0000-008E6 LED XLamp® XR-C Warm White 3500K SMD Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-008E6 is a CreeLED XLamp® XR-C warm white LED operating at 3500K color temperature, designed for surface mount applications in the 3529 (9073 Metric) package. This part is classified as obsolete. Due to its discontinued status, equivalent active production alternatives from the XLamp® XR-E series are available as direct substitutes, maintaining identical optical, thermal, and mechanical specifications while offering improved electrical performance characteristics.

Key Parameters

Parameter	Value
Manufacturer Part Number	XRCWHT-L1-0000-008E6
Manufacturer	CreeLED, Inc.
Series	XLamp® XR-C
Product Status	Obsolete
Color	White, Warm
CCT (K)	3500K
Flux @ 25°C, 350mA	77lm (74lm ~ 81lm)
Current - Test	350mA
Voltage - Forward (Vf) Typ	4.6V
Lumens/Watt @ 350mA	63 lm/W
CRI (Color Rendering Index)	80 (Typ)
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
ECCN	EAR99
HTSUS	8541.41.0000

Substitute Part Grouping Explanation

Substitution of the XRCWHT-L1-0000-008E6 is determined by the following critical parameters:

Mandatory Matching Parameters:

Color: White, Warm
CCT (K): 3500K
Flux @ 25°C, 350mA: 77lm (74lm ~ 81lm)
Current - Test: 350mA
CRI: 80 (Typ)
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)
RoHS Status: RoHS Compliant
MSL: 4 (72 Hours)
REACH Status: REACH Unaffected

Allowable Variations:

Voltage - Forward (Vf): The XLamp® XR-E series operates at 3.3V (Typ) versus 4.6V (Typ) for the XR-C. This 0.2V reduction is within acceptable design margins for warm white LED applications.
Current - Max: XR-E series supports 700mA maximum versus 500mA for XR-C, providing enhanced current headroom.
Thermal Resistance: XR-E series offers 8°C/W versus 12°C/W for XR-C, indicating improved thermal performance.
Lumens/Watt: XR-E series achieves 67 lm/W versus 63 lm/W for XR-C, reflecting generational efficiency improvement.
Product Status: Active production alternatives replace the obsolete XR-C part.
Packaging: Tape & Reel (TR) packaging is standard for active production parts.

All substitute parts maintain identical optical output (77lm), color temperature (3500K), and mechanical form factor, ensuring direct functional equivalence in existing designs.

Parameter Comparison

Parameter	XRCWHT-L1-0000-008E6 (Main)	XREWHT-L1-0000-008E6	XREWHT-L1-R250-008E6
Series	XLamp® XR-C	XLamp® XR-E	XLamp® XR-E
Product Status	Obsolete	Active	Active
CCT (K)	3500K	3500K	3500K
Flux @ 25°C, 350mA	77lm (74lm ~ 81lm)	77lm (74lm ~ 81lm)	77lm (74lm ~ 81lm)
Current - Test	350mA	350mA	350mA
Voltage - Forward (Vf) Typ	4.6V	3.3V	3.3V
Lumens/Watt @ 350mA	63 lm/W	67 lm/W	67 lm/W
CRI (Color Rendering Index)	80 (Typ)	80 (Typ)	80 (Typ)
Current - Max	500mA	700mA	700mA
Viewing Angle	90°	90°	90°
Package / Case	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)
Height - Seated (Max)	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
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant
MSL	4 (72 Hours)	4 (72 Hours)	4 (72 Hours)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99
HTSUS	8541.41.0000	8541.41.0000	8541.41.0000

Engineering Selection Recommendations

The XRCWHT-L1-0000-008E6 is obsolete and no longer in production. Selection of an active substitute part is necessary for new designs and ongoing production requirements.

Primary Substitute (3500K CCT Match):

XREWHT-L1-0000-008E6 (Tape & Reel packaging)
XREWHT-L1-R250-008E6 (Tape & Reel packaging)

Both parts are active production items from CreeLED's XLamp® XR-E series. They deliver identical optical output (77lm at 3500K) and maintain the same mechanical footprint and thermal characteristics. The XR-E series provides improved efficiency (67 lm/W versus 63 lm/W) and enhanced thermal performance (8°C/W versus 12°C/W).

Alternative Substitutes (Different CCT, Same Optical Output): For applications where color temperature flexibility is acceptable, the following XLamp® XR-E alternatives maintain identical flux output (77lm) and all mechanical/thermal specifications:

XREWHT-L1-0000-008E7 (3000K CCT)
XREWHT-L1-0000-008E8 (2700K CCT)
XREWHT-L1-0000-008F7 (3200K CCT)
XREWHT-L1-0000-008F8 (2900K CCT)
XREWHT-L1-R250-008E7 (3000K CCT)
XREWHT-L1-R250-008E8 (2700K CCT)
XREWHT-L1-R250-008F7 (3200K CCT)
XREWHT-L1-R250-008F8 (2900K CCT)

All substitute parts are RoHS Compliant, REACH Unaffected, and classified as EAR99 for export control purposes.

Frequently Asked Questions (FAQ)

Q: Can I directly replace XRCWHT-L1-0000-008E6 with XREWHT-L1-0000-008E6?

A: Yes. Both parts deliver 77lm at 3500K with identical viewing angle (90°), package dimensions (3529/9073 Metric), and mechanical form factor. The XR-E substitute operates at 3.3V forward voltage versus 4.6V for the XR-C, a 0.2V difference that is within acceptable design margins. The XR-E series also provides improved thermal performance (8°C/W versus 12°C/W) and higher efficiency (67 lm/W versus 63 lm/W).

Q: What is the difference between XREWHT-L1-0000-008E6 and XREWHT-L1-R250-008E6?

A: Both parts are electrically and optically identical. The difference is in packaging format. XREWHT-L1-0000-008E6 uses standard Tape & Reel (TR) packaging, while XREWHT-L1-R250-008E6 also uses Tape & Reel (TR) packaging. Both are suitable for automated assembly processes.

Q: Can I use a different color temperature substitute like XREWHT-L1-0000-008E7 (3000K)?

A: Only if your application permits color temperature variation. XREWHT-L1-0000-008E7 maintains identical flux output (77lm), viewing angle (90°), and all mechanical specifications. However, it operates at 3000K instead of 3500K. Use this substitute only when color temperature flexibility is acceptable in your design.

Q: Are all substitute parts RoHS compliant?

A: Yes. All XLamp® XR-E substitute parts listed are RoHS Compliant and REACH Unaffected, matching the compliance status of the original XRCWHT-L1-0000-008E6.

Q: What is the thermal resistance difference between the main part and substitutes?

A: The XRCWHT-L1-0000-008E6 has thermal resistance of 12°C/W, while all XLamp® XR-E substitutes offer 8°C/W. This 4°C/W improvement in the XR-E series indicates better heat dissipation characteristics, which is beneficial for thermal management in high-density applications.

Q: Can I use these parts interchangeably in existing PCB designs?

A: Yes. All substitute parts use the identical 3529 (9073 Metric) package with matching dimensions (0.354" L x 0.276" W, 9.00mm x 7.00mm) and seated height (0.181" / 4.60mm). They mount directly into existing footprints without PCB modification.

Q: What is the maximum current rating for substitute parts?

A: XLamp® XR-E substitutes support 700mA maximum current versus 500mA for the original XR-C part. This provides additional design margin and operational flexibility.

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