218-40CT5 Wakefield Thermal Solutions, 218-40CT5 Datasheet - Page 10
![HEATSINK ALUM NATURAL SMD](/photos/5/90/59090/wakefield_engineering-_218-40ct5_sml.jpg)
218-40CT5
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
345-1083
WTS001_p26-49
BOARD LEVEL HEAT SINKS FOR TO-220, TO-218 AND M
Dimensions: in. (mm)
Dimensions: in. (mm)
Dimensions: in. (mm)
MECHANICAL DIMENSIONS
MECHANICAL DIMENSIONS
MECHANICAL DIMENSIONS
6/14/07
10:55 AM
Standard
P/N
244-145AB
244-145ABE-50 1.650 (41.9)
Material: Aluminum, Black Anodized
Standard
P/N
245-145AB
245-145ABE-50 1.650 (41.9)
Material: Aluminum, Black Anodized
Standard
P/N
246-197AB
246-197ABE-50 2.168 (55.1)
Order SpeedClip™ 285SC or 330SC separately. (See 248 Series section).
Material: Aluminum, Black Anodized
244 SERIES
245 SERIES
246 SERIES
Page 31
Height Above
Height Above
Height Above
1.450 (36.8)
1.450 (36.8)
1.968 (50.0)
PC Board
in. (mm)
PC Board
in. (mm)
PC Board
in. (mm)
Low Height, Slim Profile Wavesolderable Folded Fin Heat Sinks
Low Height, Slim Profile Wavesolderable Folded Fin Heat Sinks
Medium Height, Slim Profile Wavesolderable Folded Fin Heat Sinks
1.300 (33.0) x 480 (12.1)
1.300 (33.0) x 480 (12.1)
1.750 (44.5) x .380 (9.7)
1.750 (44.5) x .380 (9.7)
1.986 (50.4) x 3.75 (9.5)
1.986 (50.4) x 3.75 (9.5)
Dimensions
Dimensions
Dimensions
Footprint
Footprint
Footprint
in. (mm)
in. (mm)
in. (mm)
Configuration
Configuration
Configuration
Ver.t/Horiz.
Vert./Horiz.
Vert/Horiz,
Mounting
Mounting
Mounting
Vertical
Vertical
Vertical
Tab Options
Tab Options
Tab Options
Solderable
Solderable
Solderable
No Tab
No Tab
No Tab
50
50
50
ULTIWATT
Thermal Performance at Typical Load
Thermal Performance at Typical Load
Thermal Performance at Typical Load
44°C @ 4W
44°C @ 4W
38°C @ 4W
38°C @ 4W
35°C @ 4W
35°C @ 4W
Convection
Convection
Convection
Natural
Natural
Natural
™ COMPONENTS
4.4°C/W @ 400 LFM
4.4°C/W @ 400 LFM
3.2°C/W @ 400 LFM
3.2°C/W @ 400 LFM
2.8°C/W @ 400 LFM
2.8°C/W @ 400 LFM
Convection
Convection
Convection
Forced
Forced
Forced
Board Level
Heat Sinks
MULTIWATT
MULTIWATT
MULTIWATT
.0240 (10.90)
.0250 (11.40)
lbs. (grams)
.0160 (7.25)
.0170 (7.20)
lbs. (grams)
.0160 (7.25)
.0170 (7.20)
lbs. (grams)
Weight
Weight
Weight
31