218-40CT3 Wakefield Thermal Solutions, 218-40CT3 Datasheet - Page 19

• 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

1.375
(34.9) REF
0.062
(1.6) REF
0.500
(12.7) REF
(18.5)
0.730
RAISED BOSS x 0.030 (0.8) HIGH
0.125 (3.2) DIA
A
(17.0)
0.670
(NOMINAL)
0.180
(4.6)
0.093
(2.4)
0.044 (1.1) (STANDOFF)
0.130 (3.3)
DIA
DIA
(25.4)
1.000
0.093
(2.4) DIA
0.156
(4.0)
Nominal
Installed
Nominal
Installed
Speed
330SC
Speed
285SC
Force
Force
10 lb
Clip
Clip
4 lb
100
80
60
40
20
0
0
0
POWER DISSIPATION (WATTS)
200
4
AIR VELOCITY (FPM)
400
8
600
12
800
16
1000
20
5
4
3
2
1
0