XRCWHT-L1-0000-005B4 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-005B4 is a CreeLED XLamp® XR-C white surface mount LED in 3529 (9073 Metric) package configuration. This part is classified as obsolete, necessitating identification of active equivalent alternatives from the XLamp® XR-E series that maintain functional compatibility within the specified electrical and mechanical parameters.

Key Parameters

Parameter	Value
Manufacturer Part Number	XRCWHT-L1-0000-005B4
Series	XLamp® XR-C
Product Status	Obsolete
Color	White
Flux @ 25°C, 350mA	59 lm (57–62 lm)
Forward Voltage (Vf Typ)	4.6V
Test Current	350 mA
Maximum Current	500 mA
Lumens/Watt @ 350mA	48 lm/W
Viewing Angle	90°
Package / Case	3529 (9073 Metric)
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
Mounting Type	Surface Mount
RoHS Status	RoHS Compliant
MSL Rating	4 (72 Hours)

Substitute Part Grouping Explanation

Substitution of XRCWHT-L1-0000-005B4 is determined by the following critical parameters:

Mechanical Compatibility: Package type (3529/9073 Metric), physical dimensions (9.00 mm × 7.00 mm), and height (4.60 mm maximum) must remain identical for PCB layout and assembly compatibility.

Electrical Compatibility: Test current (350 mA), flux output (59 lm nominal at 25°C), viewing angle (90°), and color (white) establish functional equivalence. Forward voltage tolerance allows operation within 3.3V to 4.6V range.

Regulatory Compliance: RoHS compliance and MSL rating (4/72 Hours) must be maintained.

All substitute parts listed are from the active XLamp® XR-E series, maintaining identical package geometry and electrical performance within specified tolerances. The XR-E series offers improved thermal characteristics (8°C/W versus 12°C/W) and higher maximum current ratings (700 mA versus 500 mA), providing enhanced reliability margins.

Parameter Comparison

Parameter	XRCWHT-L1-0000-005B4 (Main)	XREWHT-L1-0000-006E5	XREWHT-L1-0000-005B6	XREWHT-L1-0000-005B7	XREWHT-L1-0000-005B8	XREWHT-L1-0000-005B9	XREWHT-L1-R250-005B6	XREWHT-L1-R250-005B7	XREWHT-L1-R250-005B8	XREWHT-L1-R250-005B9
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
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active
Color	White	White, Neutral	White	White	White	White	White	White	White	White
CCT (K)	—	4000K	—	—	—	—	—	—	—	—
Flux @ 25°C, 350mA (lm)	59 (57–62)	65 (62–67)	59 (57–62)	59 (57–62)	59 (57–62)	59 (57–62)	59 (57–62)	59 (57–62)	59 (57–62)	59 (57–62)
Forward Voltage (Vf Typ)	4.6V	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
Maximum Current	500 mA	700 mA	700 mA	700 mA	700 mA	700 mA	—	—	—	—
Lumens/Watt @ 350mA	48 lm/W	56 lm/W	51 lm/W	51 lm/W	51 lm/W	51 lm/W	51 lm/W	51 lm/W	51 lm/W	51 lm/W
Viewing Angle	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)
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)
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)
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
Mounting Type	Surface Mount	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	RoHS Compliant
MSL Rating	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)

Engineering Selection Recommendations

All listed XLamp® XR-E substitutes maintain active product status with full RoHS compliance and identical MSL ratings. The XR-E series provides improved thermal performance (8°C/W thermal resistance versus 12°C/W) and higher maximum current capability (700 mA versus 500 mA), delivering enhanced operational margins for thermal management and current headroom.

Primary Selection: XREWHT-L1-0000-005B6, XREWHT-L1-0000-005B7, XREWHT-L1-0000-005B8, and XREWHT-L1-0000-005B9 are direct parametric equivalents with identical flux output (59 lm at 350 mA) and 90° viewing angle. Forward voltage reduction from 4.6V to 3.3V requires circuit verification for current-limiting resistor adjustment.

Alternative Selection: XREWHT-L1-0000-006E5 delivers higher flux output (65 lm at 350 mA) and specified color temperature (4000K neutral white) with improved efficiency (56 lm/W). This option suits applications requiring enhanced brightness and color specification.

Tape & Reel Variants: XREWHT-L1-R250-005B6, XREWHT-L1-R250-005B7, XREWHT-L1-R250-005B8, and XREWHT-L1-R250-005B9 provide identical electrical and mechanical specifications in Tape & Reel packaging format for high-volume production environments.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-005B6 directly replace XRCWHT-L1-0000-005B4 without circuit modification?

A: Mechanical and functional compatibility is confirmed. Forward voltage differs (3.3V versus 4.6V), requiring verification of current-limiting resistor values in the LED drive circuit to maintain specified 350 mA test current.

Q: What is the difference between standard and Tape & Reel packaging variants?

A: Electrical and mechanical specifications are identical. Tape & Reel (TR) packaging (XREWHT-L1-R250-xxxxx variants) is configured for automated assembly equipment, while standard packaging supports manual or mixed-mode assembly. Select based on production methodology.

Q: Why does XREWHT-L1-0000-006E5 show higher flux output?

A: XREWHT-L1-0000-006E5 operates at specified 4000K color temperature with optimized phosphor composition, delivering 65 lm at 350 mA versus 59 lm for unspecified color temperature variants. This represents improved efficiency in the XR-E platform.

Q: Are all substitute parts available in equivalent inventory quantities?

A: Inventory levels vary. XREWHT-L1-0000-006E5 (2132 pcs), XREWHT-L1-R250-005B7 (1048 pcs), and XREWHT-L1-0000-005B9 (929 pcs) offer highest availability. Confirm supply status for production scheduling.

Q: What thermal performance improvement does the XR-E series provide?

A: Thermal resistance improves from 12°C/W (XR-C) to 8°C/W (XR-E), reducing junction temperature rise by approximately 33% at equivalent power dissipation. This enhancement supports higher ambient temperature operation or increased current headroom.

Q: Is forward voltage difference critical for my application?

A: Forward voltage reduction (4.6V to 3.3V) affects total circuit voltage drop and current-limiting resistor calculation. Recalculate resistor values to maintain 350 mA nominal current. Verify power supply capability for the reduced voltage requirement.

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