EXTRUSION PROFILE 68855
DATASHEET
68855 PRODUCT DETAILS
Property
Height
Width
Perimeter
Weight
Material
Details
.505 in (12.83 mm)
7.201 (182.90 mm)
46.30 in
1.7 lb per foot (2.53 kg per meter)
6063-T5 Aluminum Extrusion Alloy
USA: 1.855.322.2843
EUROPE: 39.051.764002
ASIA: 86.21.6115.2000 x8122
Extrusion Profile 68855
www.aavid.com
August 2017 A03
EXTRUSION PROFILE 68855
THERMAL DATA
Natural Convection: 1.51 based on 70 C temp rise above ambient
Thermal resistance is calculated based on a single 1" (25.4mm) square heat source centered on the heat sink. If you have distributed
loads, then you can expect 10% better performance in natural convection and 20% better performance in forced convection.
DATASHEET
Natural Convection
Heat Sink Temperature Rise
Above Ambient
25.0
6.00
Heat Sink
Thermal Resistance
18.8
4.50
12.5
3.00
6.2
1.50
0.0
1.0
3.0
5.0
7.0
Power Dissipated (W)
9.0
0.00
1.0
3.0
5.0
7.0
Power Dissipated (W)
9.0
Forced Convection
Heat Sink Temperature Rise
Above Ambient (10W Dissipated)
Air Flow (m/s)
1.0
2.0
3.0
4.1
5.1
15.0
1.50
1.0
Heat Sink
Thermal Resistance
Air Flow (m/s)
2.0
3.0
4.1
5.1
11.2
1.12
7.5
0.75
3.8
0.38
0.0
200
400
600
Air Flow (LFM)
800
1000
0.00
200
400
600
Air Flow (LFM)
800
1000
USA: 1.855.322.2843
EUROPE: 39.051.764002
ASIA: 86.21.6115.2000 x8122
Extrusion Profile 68855
www.aavid.com
August 2017 A03