218-40CT5 Wakefield Thermal Solutions, 218-40CT5 Datasheet - Page 11
![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
32
Dimensions: in. (mm)
Dimensions: in. (mm)
Dimensions: in. (mm)
MECHANICAL DIMENSIONS
MECHANICAL DIMENSIONS
MECHANICAL DIMENSIONS
Board Level
Heat Sinks
6/14/07
Standard
P/N
247-195AB
247-195ABE-50 1.950 (49.5)
Order SpeedClip™ 285SC or 330SC separately. (See 248 Series section).
Material: Aluminum, Black Anodized
Standard
P/N
248-162AB
248-162ABE-50 1.620 (41.1)
Order SpeedClip™ 285SC or 330SC separately.
Material: Aluminum, Black Anodized
Standard
P/N
249-113AB
249-113ABE-50 1.130 (28.7)
Order SpeedClip™ 285SC or 330SC separately. (See 248 Series section).
Material: Aluminum, Black Anodized
247 SERIES
249 SERIES
248 SERIES
10:55 AM
Height Above
Height Above
Height Above
1.950 (49.5)
1.620 (41.1)
1.130 (28.7)
PC Board
PC Board
PC Board
in. (mm)
in. (mm)
in. (mm)
Page 32
Medium Height, Deep Profile Wavesolderable Folded Fin Heat Sinks
Low Height, Medium Profile Wavesolderable Folded Fin Heat Sinks
Medium Height, Deep Profile Wavesolderable Folded Fin Heat Sinks
1.900 (48.3) x .950 (24.1)
1.900 (48.3) x .950 (24.1)
2.000 (50.8) x .750 (19.1)
2.000 (50.8) x .750 (19.1)
1.900 (48.3) x .950 (24.1)
1.900 (48.3) x .950 (24.1)
Dimensions
Dimensions
Dimensions
Footprint
Footprint
Footprint
in. (mm)
in. (mm)
in. (mm)
Configuration
Configuration
Configuration
Vert./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
Convection
Convection
35°C @ 4W
35°C @ 4W
Convection
25°C@ 4W
25°C@ 4W
35°C@ 4W
35°C@ 4W
Order SpeedClips™ separately for use
with Series 246, 247, 248 or 249
Natural
Natural
Natural
™ COMPONENTS
3.29°C/W @ 400 LFM
3.29°C/W @ 400 LFM
2.4°C/W @ 400 LFM
2.4°C/W @ 400 LFM
2.5°C/W @ 400 LFM
2.5°C/W @ 400 LFM
Convection
Convection
Convection
Forced
Forced
Forced
MULTIWATT
MULTIWATT
MULTIWATT
.0330 (15.10)
.0340 (15.60)
lbs. (grams)
lbs. (grams)
lbs. (grams)
.026 (11.60)
.027 (12.20)
.020 (8.90)
.021 (9.40)
Weight
Weight
Weight