274-3AB Wakefield Thermal Solutions, 274-3AB Datasheet - Page 9

• Manufacturer Part Number: 274-3AB
• Description: Heat Sink
• Manufacturer: Wakefield Thermal Solutions

Specifications of 274-3AB

• Packages Cooled: TO-220
• Thermal Resistance: 31°C/W
• Width: 13.2mm
• Height: 6.4mm
• Heat Sink Material: Aluminum
• Length: 19.1mm
• Mounting Type: Mounting Hole
• Package / Case: TO-220
• Color: Black
• Product: Heatsinks
• Mounting Style: Screw
• Heatsink Material: Aluminum
• Dimensions: 13.2 mm L x 19.1 mm W x 6.4 mm H
• Designed For: TO-220
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q5346208

WTS001_p26-49
BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS
Material: Aluminum,
Black Anodized
MECHANICAL DIMENSIONS
30
Board Level
Heat Sinks
MECHANICAL DIMENSIONS
232-200AB
6/14/07
251-62AB
Standard
P/N
242-125ABE-22 1.285 (32.6)
Material: Aluminum, Black Anodized
Standard
P/N
232-200AB
232-200ABE-23 2.000 (50.8)
238-200AB
238-200ABE-23 2.000 (50.8)
Standard
P/N
251-62AB
251-80AB
251-80ABE-19
Material: Aluminum, Black Anodized
242 SERIES
251 SERIES
232 & 238 SERIES
242-125AB-22
10:55 AM
232-200AB-23
Height Above
Height Above
2.000 (50.8)
2.000 (50.8)
Height Above
.620 (15.7)
.845 (21.5)
.875 (22.2)
PC Board
PC Board
in. (mm)
in. (mm)
251-80AB
PC Board
in. (mm)
Page 30
MECHANICAL DIMENSIONS
Low-Height, Low-Profile Twisted Fin Heat Sinks
Slim-Profile Heat Sinks With Integral Clips
1.380 (35.1) x .500 (12.7)
1.380 (35.1) x .500 (12.7)
1.380 (35.1) x .500 (12.7)
1.380 (35.1) x .500 (12.7)
Staggered Fin Heat Sinks for Vertical Mounting
.875 (22.2) x .250 (6.4)
.910 (23.1) x .380 (9.7)
.910 (23.1) x .380 (9.7)
.910 (23.1) x .380 (9.7)
238-200AB
Dimensions
Dimensions
Dimensions
Footprint
in. (mm)
Footprint
Footprint
in. (mm)
in. (mm)
Dimensions: in. (mm)
Dimensions: in. (mm)
238 SERIES
251 SERIES
Configuration Tab Options
238-200AB-23
Configuration
Configuration
251-80AB-19
Vert./Horiz.
Vert./Horiz.
Mounting
Mounting
Mounting
Vertical
Vertical
Vertical
Verlical
Verlical
Vertical
242 SERIES
232 AND 238 SERIES
Dimensions: in. (mm)
Solderable
2, Solderable
2, Solderable
Tab Options
Tab Options
Solderable
Solderable
2, Twisted
2, Twisted
22
No Tab
No Tab
19
Mounting
Mtg Hole
Clip/Mtg Hole
Clip/Mtg Hole
Style
Mounting
Mounting
Mtg Slot
Mtg Slot
Style
Style
Clip
Clip
Clip
CONVECTION CHARACTERISTICS
48°C @ 2W
Convection
Thermal Performance at Typical Load
CONVECTION CHARACTERISTICS
CONVECTION CHARACTERISTICS
Natural
NATURAL AND FORCED
NATURAL AND FORCED
NATURAL AND FORCED
48°C @ 4W
48°C @ 4W
48°C @ 4W
48°C @ 4W
Convection
Convection
66°C @ 3W
64°C @ 3W
64°C @ 3W
Thermal Performance at Typical Load
Thermal Performance at Typical Load
Natural
Natural
6.2°C/W @ 400 LFM
3.3°C/W @ 400 LFM
3.3°C/W @ 400 LFM
3.3°C/W @ 400 LFM
3.3°C/W @ 400 LFM
66°C/W @ 400 LFM
66°C/W @ 400 LFM
66°C/W @ 400 LFM
Convection
Convection
Convection
15 Lead Multiwatt
Forced
Forced
TO-202, TO-220
Forced
TO-220