218-40CT5 Wakefield Thermal Solutions, 218-40CT5 Datasheet - Page 2

• Manufacturer Part Number: 218-40CT5
• Description: HEATSINK ALUM NATURAL SMD
• Manufacturer: Wakefield Thermal Solutions
• Series: 218r

Specifications of 218-40CT5

• Height: 0.4" (10.16mm)
• Package Cooled: SMD
• Attachment Method: SMD Pad
• Outline: 26.16mm x 12.70mm
• Power Dissipation @ Temperature Rise: 2W @ 52°C
• Thermal Resistance @ Forced Air Flow: 21°C/W @ 200 LFM
• Thermal Resistance @ Natural: 31°C/W
• Packages Cooled: TO-218 / TO-220
• Thermal Resistance: 31°C/W
• Width: 26.2mm
• Heat Sink Material: Copper
• Mounting Type: PC Board Surface Mount
• Length: 12.7mm
• Body Plating: Matte Tin
• Product: Heatsinks
• Mounting Style: SMD/SMT
• Heatsink Material: Aluminum
• Fin Style: Folded
• Dimensions: 26.16 mm L x 12.7 mm W x 10.16 mm H
• Designed For: SMT Devices
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 21840CT5; 345-1083

BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS
100
100
80
60
40
20
80
0
0
0
0
200
200
0.5
200
HEAT DISSIPATED (WATTS)
AIR VELOCITY (LFM)
AIR VELOCITY (LFM)
400
400
400
1.0
600
600
1.5
600
800
800
2.0
800
1000
1000
1000
2.5
25
20
15
10
5
0
20
18
16
100
100
80
80
60
40
20
0
Solid line = 218-40CT5
0
0
0
200
200
200
0.5
HEAT DISSIPATED (WATTS)
AIR VELOCITY (LFM)
AIR VELOCITY (LFM)
400
400
400
1.0
Dashed Line = 218-40CT3
600
600
600
1.5
800
800
800
2.0
1000
1000
1000
2.5
25
20
15
10
5
0
10
8