TO-5 Heat Sinks
3257, 3260
Extruded collar style heat sink with radial fins
Air Velocity—Feet Per Minute
400
600
800
THRU HOLE DISCRETE SEMICONDUCTOR PACKAGES
0
100
Mounting Surface Temp
Rise Above Ambient—°C
80
60
40
20
0
0.0
326005
325705
200
40
30
20
10
0
0.4
0.8
1.2
1.6
Heat Dissipated—Watts
2.0
Thermal Resistance From MTG
Surface to Ambient—°C/Watt
1000
50
12.70
(0.500)
Extruded collar style heat
sink with radial fins.
The split
collar design provides a press fit
between the transistor and the
heat sink creating an excellent
thermal conduction path.
Available in two heights.
ORDERING INFORMATION
Part Number
325705B00000G
326005B00000G
“A” Dim
6.35 (0.250)
9.53 (0.375)
ø 8.07
(0.318) THRU
"A"
Material: Aluminum
Finish: Black Anodize
3201, 3202
Extruded collar style heat sink with swept back fins
0
100
Mounting Surface Temp
Rise Above Ambient—°C
80
60
40
20
0
0.0
200
Air Velocity—Feet Per Minute
400
600
800
"A"
Thermal Resistance From MTG
Surface to Ambient—°C/Watt
1000
50
40
30
20
10
0
Extruded collar style heat sink with
swept back fins
for increased surface
area in a small volume. The split collar
design provides a press fit between
the transistor and the heat sink creating
an excellent thermal conduction path.
Available in two inside diameters.
ORDERING INFORMATION
Part Number
320105B00000G
320205B00000G
“A” Dim
8.07 (0.318)
7.75 (0.305)
12.70
(0.500)
6.35
(0.250)
Material: Aluminum
Finish: Black Anodize
0.4
0.8
1.2
1.6
Heat Dissipated—Watts
2.0
3230
Extruded collar style heat sink with mounting hole
0
100
Mounting Surface Temp
Rise Above Ambient—°C
80
60
40
20
0
0.0
Air Velocity—Feet Per Minute
400
200
600
800
40
30
20
10
0
0.4
0.8
1.2
1.6
Heat Dissipated—Watts
2.0
Thermal Resistance From MTG
Surface to Ambient—°C/Watt
1000
50
Extruded collar style heat sink
with mounting hole
for hardware
attachment to the circuit card. The heat
sink includes a mount boss that will
accept a 4-40 screw for secure mounting
in high vibration environments. The split
collar design provides a press fit between
the transistor and the heat sink creating
an excellent thermal conduction path.
ORDERING INFORMATION
Part Number
323005B00000G
Description
ø 8.08
(0.318)
ø 3.17
(0.125)
19.05
(0.750)
R 7.62
(0.300)
6.35
(0.250)
Material: Aluminum
Finish: Black Anodize
Extruded collar style heat sink with mounting boss
76
AMERICA
EUROPE
www.aavidthermalloy.com
USA
Tel: +1 (603) 224-9988 email: info@aavid.com
Italy
Tel: +39 051 764011 email: sales.it@aavid.com
United Kingdom
Tel: +44 1793 401400 email: sales.uk@aavid.com
ASIA
Singapore
Tel: +65 6362 8388 email: sales@aavid.com.sg
Taiwan
Tel: +886(2) 2698-9888 email: sales@aavid.com.tw
Microcontroller MCU
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