Equivalent & Substitute Parts for XRCWHT-L1-0000-005B5

Part Overview

The XRCWHT-L1-0000-005B5 is a CreeLED XLamp® XR-C warm white surface mount LED in 3529 (9073 Metric) package. This part is classified as obsolete. Equivalent and substitute parts from the active XLamp® XR-E series are available to maintain design continuity and ensure supply chain availability for applications requiring warm white LED lighting at 350mA nominal current.

Key Parameters

Parameter	Value
Manufacturer Part Number	XRCWHT-L1-0000-005B5
Manufacturer	CreeLED, Inc.
Series	XLamp® XR-C
Product Status	Obsolete
Color	White
Flux @ 25°C, 350mA	59lm (57lm ~ 62lm)
Current - Test	350mA
Voltage - Forward (Vf) Typ	4.6V
Lumens/Watt @ 350mA	48 lm/W
Current - Max	500mA
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 of Package	12°C/W
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	4 (72 Hours)

Substitute Part Grouping Explanation

Substitution of XRCWHT-L1-0000-005B5 is based on the following allowed electrical and mechanical parameters:

Critical Matching Parameters:

Package / Case: 3529 (9073 Metric) — identical footprint and mounting interface
Viewing Angle: 90° — identical optical characteristics
Flux @ 25°C, 350mA: 59lm (57lm ~ 62lm) — identical luminous output at test current
Current - Test: 350mA — identical nominal operating current
Size / Dimension: 0.354" L x 0.276" W (9.00mm x 7.00mm) — identical physical dimensions
Height - Seated (Max): 0.181" (4.60mm) — identical height for PCB clearance
Mounting Type: Surface Mount — identical assembly method
RoHS Status: RoHS Compliant — identical regulatory compliance
Moisture Sensitivity Level (MSL): 4 (72 Hours) — identical handling requirements

Allowable Parameter Variations:

Voltage - Forward (Vf): 4.6V (main part) to 3.3V (substitute parts) — within acceptable range for warm white LED technology
Lumens/Watt: 48 lm/W (main part) to 51 lm/W (substitute parts) — improved efficiency in substitutes
Current - Max: 500mA (main part) to 700mA (substitute parts, except R250 variants) — higher maximum rating in substitutes
Thermal Resistance: 12°C/W (main part) to 8°C/W (substitute parts) — improved thermal performance in substitutes
Series: XLamp® XR-C (main part) to XLamp® XR-E (substitute parts) — generational upgrade within same product family
Product Status: Obsolete (main part) to Active (substitute parts) — ensures long-term availability

All substitute parts maintain identical mechanical compatibility and electrical performance at the 350mA test current, enabling direct replacement in existing designs.

Parameter Comparison

Part Number	Series	Status	Vf (Typ)	Flux @ 25°C, 350mA	lm/W @ 350mA	I-Max	Thermal R	Inventory
XRCWHT-L1-0000-005B5	XLamp® XR-C	Obsolete	4.6V	59lm (57-62)	48	500mA	12°C/W	819 Pcs
XREWHT-L1-0000-005E8	XLamp® XR-E	Active	3.3V	59lm (57-62)	51	700mA	8°C/W	917 Pcs
XREWHT-L1-0000-005B6	XLamp® XR-E	Active	3.3V	59lm (57-62)	51	700mA	8°C/W	776 Pcs
XREWHT-L1-0000-005B7	XLamp® XR-E	Active	3.3V	59lm (57-62)	51	700mA	8°C/W	989 Pcs
XREWHT-L1-0000-005B8	XLamp® XR-E	Active	3.3V	59lm (57-62)	51	700mA	8°C/W	925 Pcs
XREWHT-L1-0000-005B9	XLamp® XR-E	Active	3.3V	59lm (57-62)	51	700mA	8°C/W	929 Pcs
XREWHT-L1-R250-005B6	XLamp® XR-E	Active	3.3V	59lm (57-62)	51	—	8°C/W	707 Pcs
XREWHT-L1-R250-005B7	XLamp® XR-E	Active	3.3V	59lm (57-62)	51	—	8°C/W	1048 Pcs
XREWHT-L1-R250-005B8	XLamp® XR-E	Active	3.3V	59lm (57-62)	51	—	8°C/W	938 Pcs
XREWHT-L1-R250-005B9	XLamp® XR-E	Active	3.3V	59lm (57-62)	51	—	8°C/W	697 Pcs

Engineering Selection Recommendations

All listed substitute parts are active products from CreeLED's XLamp® XR-E series and maintain full RoHS compliance and REACH unaffected status identical to the original XRCWHT-L1-0000-005B5. The substitute parts offer improved thermal performance (8°C/W versus 12°C/W) and higher efficiency (51 lm/W versus 48 lm/W) while maintaining identical luminous output at the 350mA test current.

The XREWHT-L1-0000-005E8 variant includes specified CCT (2700K) and CRI (80 Typ) parameters, making it suitable for applications requiring warm white color temperature specification. All other XREWHT variants provide equivalent electrical and thermal performance without specified color temperature data.

Parts designated with "R250" in the part number differ only in maximum current rating specification, which is not provided in the datasheet. These variants are suitable for applications operating at or below 350mA nominal current.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-005B6, XREWHT-L1-0000-005B7, XREWHT-L1-0000-005B8, and XREWHT-L1-0000-005B9 be used interchangeably with XRCWHT-L1-0000-005B5?

A: Yes. All four parts are parametric equivalents. They share identical package, footprint, viewing angle, luminous output at 350mA, and thermal resistance. The 0.2V reduction in forward voltage (4.6V to 3.3V) is within acceptable operating range for warm white LED applications and may reduce power dissipation in the circuit.

Q: What is the difference between XREWHT-L1-0000-005B6/B7/B8/B9 and XREWHT-L1-R250-005B6/B7/B8/B9?

A: The R250 designation indicates a different maximum current rating specification. Both groups are suitable for 350mA nominal operation. Selection between these groups depends on circuit design requirements for maximum current headroom.

Q: Is XREWHT-L1-0000-005E8 different from the other XREWHT variants?

A: XREWHT-L1-0000-005E8 is specified with CCT 2700K and CRI 80 (Typ). The other XREWHT variants do not include these color specification parameters in the provided data. All maintain identical electrical performance at 350mA test current.

Q: Will the lower forward voltage of substitute parts affect my circuit design?

A: The forward voltage reduction from 4.6V to 3.3V (0.2V) is within normal tolerance for warm white LED technology. For series-connected LED strings, this results in approximately 0.2V lower total voltage drop per LED. Circuit designs using current-limiting resistors or constant current drivers will automatically compensate for this variation.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts use identical 3529 (9073 Metric) package and Surface Mount assembly method. Packaging format (Tape & Reel) is specified for all substitute parts. The original XRCWHT-L1-0000-005B5 packaging format is not specified in the provided data.

Q: What is the thermal advantage of the substitute parts?

A: Substitute parts feature 8°C/W thermal resistance compared to 12°C/W for the original part. This 33% improvement in thermal performance allows for better heat dissipation and potentially higher ambient temperature operation or higher current capability in thermally constrained applications.

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