XRCWHT-L1-R250-005E7 Cree Inc, XRCWHT-L1-R250-005E7 Datasheet - Page 7

• Manufacturer Part Number: XRCWHT-L1-R250-005E7
• Description: LED WARM WHITE 3000K SMD XLAMP
• Manufacturer: Cree Inc
• Series: Xlamp® XR-Cr

Specifications of XRCWHT-L1-R250-005E7

• Viewing Angle: 90°
• Color: White, Warm
• Current - Test: 350mA
• Luminous Flux @ Current - Test: 56.8lm
• Current - Max: 500mA
• Lumens @ Current - Max: 72lm
• Lumens/watt @ Current - Test: 46lm/W
• Voltage - Forward (vf) Typ: 3.5V
• Wavelength: 3000K
• Lens Style/size: Round with Domed Top
• Mounting Type: Surface Mount
• Package / Case: 9.00mm L x 7.00mm W x 4.40mm H
• Led Color: Warm White
• Luminous Flux @ Test: 62lm
• Cct: 3700K
• Forward Current @ Test: 350mA
• Forward Current If Max: 500mA
• Forward Voltage @ Test: 3.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1003 - LM3406 LED DRIVER EVAL BOARD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: XRCWHT-L1-R250-005E7; XRCWHT-L1-R250-005E7TR

THERMAL DESIGN
The maximum forward current is determined by the thermal resistance between the LED junction and ambient. Given
an existing thermal resistance of 12°C/W or 15°C/W between the junction and the solder point, it is crucial for the end
product to be designed in a manner that minimizes the thermal resistance from the solder point to ambient in order to
optimize lamp life and optical characteristics.
Copyright © 2007-2008 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree, the Cree logo and XLamp are registered trade-
marks of Cree, Inc.
Red-Orange
Royal Blue
Amber
White
Green
Blue
Red
White, Royal Blue, Blue & Green
Thermal Design
Amber
Red-Orange, Red
600
500
400
300
200
100
400
300
200
100
800
700
600
500
400
300
200
100
0
0
0
0
0
0
Rj-a = 20°C/W
Rj-a = 30°C/W
Rj-a = 40°C/W
Rj-a = 20°C/W
Rj-a = 30°C/W
Rj-a = 40°C/W
Rj-a = 15°C/W
Rj-a = 25°C/W
Rj-a = 35°C/W
25
25
25
50
50
50
Ambient Temperature (°C)
Ambient Temperature (°C)
Ambient Temperature (°C)
75
75
75
100
100
100
125
125
125
150
150
150
XLAMP XR-C LEDS
7