218-40CT3 Wakefield Thermal Solutions, 218-40CT3 Datasheet - Page 4

• Manufacturer Part Number: 218-40CT3
• Description: HEATSINK ALUM BLACK SMD
• Manufacturer: Wakefield Thermal Solutions
• Series: 218r

Specifications of 218-40CT3

• Thermal Resistance: 21 C / W
• Height: 0.4" (10.16mm)
• Package Cooled: SMD
• Attachment Method: SMD Pad
• Outline: 22.86mm x 8.12mm
• Power Dissipation @ Temperature Rise: 2W @ 52°C
• Thermal Resistance @ Forced Air Flow: 21°C/W @ 200 LFM
• Thermal Resistance @ Natural: 31°C/W
• Product: Heatsinks
• Mounting Style: SMD/SMT
• Heatsink Material: Aluminum
• Fin Style: Folded
• Dimensions: 22.86 mm L x 8 mm W x 10.16 mm H
• Designed For: SMT Devices
• Packages Cooled: TO-218 / TO-220
• Width: 22.9mm
• Heat Sink Material: Copper
• Mounting Type: PC Board Surface Mount
• Length: 8mm
• Body Plating: Matte Tin
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 21840CT3; 345-1082

BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS
100
100
100
80
60
40
80
60
40
20
80
60
40
20
0
0
0
0
0
0
0
200
200
200
200
200
0.5
1
HEAT DISSIPATED (WATTS)
HEAT DISSIPATED (WATTS)
AIR VELOCITY (LFM)
AIR VELOCITY (LFM)
AIR VELOCITY (LFM)
400
400
400
400
400
1.0
2
600
600
1.5
600
600
600
3
800
800
2.0
800
800
4
800
1000
1000
1000
1000
2.5
5
1000
25
20
15
10
5
0
20
18
16
14
12
10
8
6
4
2
0
10
8
6
4
100
100
100
80
60
40
20
80
60
40
20
80
60
40
20
100
100
0
0
0
80
60
40
20
80
60
40
20
100
80
60
40
0
0
0
0
0
0
0
0
0
0
0
0
0
200
200
200
200
200
200
0.5
200
200
200
200
2
0.5
1
200
1
HEAT DISSIPATED (WATTS)
HEAT DISSIPATED (WATTS)
HEAT DISSIPATED (WATTS)
HEAT DISSIPATED (WATTS)
HEAT DISSIPATED (WATTS)
AIR VELOCITY (LFM)
AIR VELOCITY (LFM)
AIR VELOCITY (LFM)
AIR VELOCITY (LFM)
AIR VELOCITY (LFM)
400
400
AIR VELOCITY (LFM)
400
400
400
400
1.0
400
400
400
400
2
4
1.0
400
2
600
600
1.5
600
600
600
600
600
600
600
600
3
1.5
6
600
3
800
800
2.0
800
800
4
800
800
800
800
800
800
2.0
4
8
800
1000
1000
1000
1000
2.5
5
1000
1000
1000
1000
1000
1000
10
5
1000
2.5
25
20
15
10
5
0
20
18
16
14
12
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
25
20
15
10
5
0
10
8
6
4
100
100
80
60
40
20
100
80
60
40
20
0
0
80
60
40
20
0
0
0
0
0
0
0