218-40CT5 Wakefield Thermal Solutions, 218-40CT5 Datasheet - Page 6
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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 POWER SEMICONDUCTOR HEAT SINKS
PATENT PENDING
PATENT 5381041
MECHANICAL DIMENSIONS
Dimensions: in. (mm)
MECHANICAL DIMENSIONS
6/14/07
239-75AB
10:55 AM
Standard
P/N
235-85AB
235-85ABE-01
235-85ABE-05
235-85ABE-10
Material: Aluminum, Black Anodized
Standard
P/N
243-1PAB
243-3PAB
Material: Aluminum, Pre-anodized Black
Standard
P/N
239-75AB
239-75ABE-03
239-75ABE-04
Material: Aluminum, Black Anodized
235 SERIES
243 SERIES
239 SERIES
235-85AB-05
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243 SERIES
Height Above
Height Above
Height Above
Dimensions: in. (mm)
1.000 (25.4)
.850 (21.6)
.850 (21.6)
.500 (12.7)
.975 (24.8)
.750 (19.1)
.750 (19.1)
.750 (19.1)
.800 (20.3)
PC Board
PC Board
PC Board
in. (mm)
in. (mm)
in. (mm)
235-85AB
Compact, Stress-Free Labor-Saving Locking-Tab Heat Sinks
Snap-Down Self-Locking Heat Sinks
Labor-Saving Clip-On Heat Sinks
1.000 (25.4) x .500 (12.7)
1.000 (25.4) x .500 (12.7)
1.000 (25.4) x .500 (12.7)
1.120 (28.4) x .435 (11.0)
1.120 (28.4) x .435 (11.0)
1.120 (28.4) x .435 (11.0)
.850 (21.6) x 1.000 (25.4)
MECHANICAL DIMENSIONS
.800 (20.3) x .270 (6.9)
.800 (20.3) x .270 (6.9)
SECTION A-A
Dimensions
Dimensions
Dimensions
Dimensions: in. (mm)
Footprint
Footprint
Footprint
in. (mm)
in. (mm)
in. (mm)
235-85AB-01
Configuration
Configuration
Configuration
SECTION A-A
Vert./Horiz.
Vert./Horiz.
Verl./Horiz.
239-75AB-03
Vert./Horiz
239-75AB-04
Mounting
Horizontal
Mounting
Mounting
239 SERIES
Vertical
Vertical
Vertical
Vertical
235-85AB-10
235 SERIES
Tab Options
Tab Options
Tab Options
Solderable
Solderable
Solderable
No Tab
No Tab
No Tab
No Tab
01
05
10
03
04
VIEW B-B
Clip/Mtg Hole
Clip/Mtg Hole
Clip/Mtg Hole
Clip/Mtg Hole
Clip/Mtg Hole
Clip/Mtg Hole
Clip/Mtg Hole
Mounting
Mounting
Mounting
Style
Style
Style
Clip
Clip
Convection
40°C @ 2W
40°C @ 2W
40°C @ 2W
40°C @ 2W
Convection
Convection
38°C @ 2W
38°C @ 2W
38°C @ 2W
Thermal Performance at Typical Load
Thermal Performance at Typical Load
50°C@ 2W
78°C@ 2W
Thermal Performance at Typical Load
CONVECTION CHARACTERISTICS
CONVECTION CHARACTERISTICS
CONVECTION CHARACTERISTICS
Natural
Natural
Natural
NATURAL AND FORCED
NATURAL AND FORCED
NATURAL AND FORCED
6.8°C/W @ 400 LFM
6.8°C/W @ 400 LFM
6.8°C/W @ 400 LFM
6.8°C/W @ 400 LFM
4.5°C/W @ 400 LFM
8.2°C/W @ 400 LFM
6°C/W @ 400 LFM
6°C/W @ 400 LFM
6°C/W @ 400 LFM
Board Level
Heat Sinks
Convection
Convection
Convection
Forced
Forced
Forced
TO-220
TO-220
TO-220
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