218-40CT5 Wakefield Thermal Solutions, 218-40CT5 Datasheet - Page 3

• 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
40
20
80
60
40
20
80
60
40
20
0
0
0
0
0
0
0
0
200
200
200
200
200
0.5
2
1
HEAT DISSIPATED (WATTS)
HEAT DISSIPATED (WATTS)
HEAT DISSIPATED (WATTS)
AIR VELOCITY (LFM)
AIR VELOCITY (LFM)
400
400
400
400
400
1.0
2
4
600
1.5
600
600
600
600
3
6
800
2.0
800
800
4
800
800
8
1000
1000
1000
2.5
5
1000
1000
10
10
5
0
20
18
16
14
12
10
8
6
4
2
0
10
8
6
4
2
0
100
80
60
40
20
100
40
20
0
0
80
60
40
20
0
0
0
0
0
0
200
200
200
0.5
200
200
1
2
HEA
HEA
HEA
A