74765 Datasheet by Aavid, Thermal Division of Boyd Corporation

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§Vk AAVID 4A§ THERMALLOY 4.24 '1 m (0.167) 3 26.03 4‘ (1.025) 4L 5 08 ‘ 107.57 J (0 200) (4.235) c 74765 PRODUCT DETAILS §VP AAVID 4A§ THERMALLOY
DATASHEET
EXTRUSION PROFILE 74765
USA: 1.855.322.2843 Extrusion Profile 74765
EUROPE: 39.051.764002 www.aavid.com
ASIA: 86.21.6115.2000 x8122 November 2016 A02
Property
Details
Height
1.02 in (25.91 mm)
Width
4.24 in (107.7 mm)
Perimeter
50.53 in
Weight
2.4 lbs per foot (3.57 kg per meter)
Material
6063-T5 Aluminum Extrusion Alloy
74765 PRODUCT DETAILS
§Vp AAVID 4A§ THERMALLOY THERMA L DA TA an .-"' 3.... g g ............ .1 G E w ' 1-. 8 u. ..... 355.322.2343 AV; E EVI D Extrusion Frame 7 325‘ THERMALLOY
DATASHEET
EXTRUSION PROFILE 74765
USA: 1.855.322.2843 Extrusion Profile 74765
EUROPE: 39.051.764002 www.aavid.com
ASIA: 86.21.6115.2000 x8122 November 2016 A02
THERMAL DATA
Natural Convection: 1.38 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.
Natural Convection
Heat Sink Temperature Rise
Above Ambient
Heat Sink
Thermal Resistance
2.5
7.5
12.5
17.5
22.5
2.5
7.5
12.5
17.5
22.5
Power Dissipated (W)
Power Dissipated (W)
Forced Convection
Heat Sink Temperature Rise
Above Ambient (25W Dissipated)
Heat Sink
Thermal Resistance
Air Flow (m/s)
Air Flow (m/s)
1.0
2.0
3.0
4.1
5.1
200
400
600
800
1000
1.0
2.0
3.0
4.1
5.1
200
400
600
800
1000
Air Flow (LFM)
Air Flow (LFM)

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74765 EXTRUSION 1.025X4.235"X5'