Board Level
Heat Sinks
BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS
235 SERIES
Compact, Stress-Free Labor-Saving Locking-Tab Heat Sinks
TO-220
Height Above
PC Board
in. (mm)
Footprint
Dimensions
in. (mm)
Thermal Performance at Typical Load
Standard
P/N
Mounting
Configuration
Solderable
Tab Options
Mounting
Style
Natural
Forced
Convection
Convection
235-85AB ̆
235-85AB-01
235-85AB-05
235-85AB-10
.850 (21.6) 1.000 (25.4) x .500 (12.7) Vert./Horiz.
.850 (21.6) 1.000 (25.4) x .500 (12.7) Vertical
.500 (12.7) .850 (21.6) x1.000 (25.4) Horizontal
.975 (24.8) 1.000 (25.4) x .500 (12.7)
No Tab
01
05
Clip/Mtg Hole
Clip/Mtg Hole
Clip/Mtg Hole
Clip/Mtg Hole
40°C @ 2W
40°C @ 2W
40°C @ 2W
40°C @ 2W
6.8°C/W @ 400 LFM
6.8°C/W @ 400 LFM
6.8°C/W @ 400 LFM
6.8°C/W @ 400 LFM
Vertical
10
PATENT 5381041
Material: Aluminum, Black Anodized
NATURAL AND FORCED
CONVECTION CHARACTERISTICS
235 SERIES
MECHANICAL DIMENSIONS
235-85AB
235-85AB-05
235-85AB-01
235-85AB-10
Dimensions: in. (mm)
243 SERIES
Labor-Saving Clip-On Heat Sinks
TO-220
Thermal Performance at Typical Load
Height Above
PC Board
Footprint
Dimensions
in. (mm)
Standard
P/N
Mounting
Configuration
Solderable
Tab Options
Mounting
Style
Natural
Forced
Convection
in. (mm)
Convection
243-1PAB
243-3PAB ̆
1.000 (25.4)
.800 (20.3)
.800 (20.3) x .270 (6.9)
.800 (20.3) x .270 (6.9)
Vert./Horiz.
Verl./Horiz.
No Tab
No Tab
Clip
Clip
50°C@ 2W
78°C@ 2W
4.5°C/W @ 400 LFM
8.2°C/W @ 400 LFM
Material: Aluminum, Pre-anodized Black
NATURAL AND FORCED
CONVECTION CHARACTERISTICS
MECHANICAL DIMENSIONS
243 SERIES
VIEW B-B
SECTION A-A
Dimensions: in. (mm)
239 SERIES
Snap-Down Self-Locking Heat Sinks
TO-220
Thermal Performance at Typical Load
Height Above
PC Board
Footprint
Dimensions
in. (mm)
Standard
P/N
Mounting
Solderable
Tab Options
Mounting
Style
Natural
Forced
Convection
in. (mm)
Configuration
Convection
239-75AB
239-75AB-03
239-75AB-04
.750 (19.1)
.750 (19.1)
.750 (19.1)
1.120 (28.4) x .435 (11.0)
1.120 (28.4) x .435 (11.0)
1.120 (28.4) x .435 (11.0)
Vert./Horiz
Vertical
Vertical
No Tab
03
04
Clip/Mtg Hole
Clip/Mtg Hole
Clip/Mtg Hole
38°C @ 2W
38°C @ 2W
38°C @ 2W
6°C/W @ 400 LFM
6°C/W @ 400 LFM
6°C/W @ 400 LFM
PATENT PENDING
Material: Aluminum, Black Anodized
239 SERIES
NATURAL AND FORCED
CONVECTION CHARACTERISTICS
MECHANICAL DIMENSIONS
SECTION A-A
239-75AB
239-75AB-03
239-75AB-04
Dimensions: in. (mm)
All other products, please contact factory for price, delivery, and minimums.
̆ Normally stocked
33