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TO-220 & TO-218 & TO-247 Heat Sinks
SW25, SW38, SW50, SW63
Extruded heat sink with unequal channel widths
Grease
&
Epoxy
page112
Mounting
Kits
page 99
Air Velocity — Feet Per Minute
100
0
200
400
600 800
1000
10
6.25
(0.246)
34.50
(1.358)
80
60
40
20
0
8
6
4
2
0
12.50
(0.492)
2.00
(0.079)
SEE NOTE 1
Extruded heat sink with unequal
SW25
0
2
4 6
Heat Dissipated — Watts
8
10
channel widths front and back
SW38
can accommodate a TO-220, TO-218,
or TO-247 devices. Includes two solder-
able mounting pins which permit verti-
cal mounting and eliminate stress on
device leads. Available in three heights.
Version without hole uses clip 5901
(sold separately) to attach device.
See page 97 for clip information.
100
80
60
40
20
0
Air Velocity — Feet Per Minute
200 400 600 800
1000
10
8
6
4
2
25.00
(0.984) 19.90
(0.783) 15.00
(0.591)
4.00
(0.157)
2.50
(0.098)
"A"
? 3.20
(0.126) TYP
SW50
0
0
2
4 6
Heat Dissipated — Watts
8
10
0
25.40
(1.000)
SW63
ORDERING INFORMATION
Dia of PCB
Plated Thru
Part Number
SW25-2G
Description
Extruded heat sink with unequal channel widths front and back
“A” Dim
25.00 (0.984)
Holes
No
Hole for Pins
3.00 (0.118)
SW25-4G
SW38-2G
SW38-4G
SW50-2G
SW50-4G
SW63-2G
SW63-4G
With device mounting holes
Extruded heat sink with unequal channel widths front and back
With device mounting holes
Extruded heat sink with unequal channel widths front and back
With device mounting holes
Extruded heat sink with unequal channel widths front and back
With device mounting holes
25.00 (0.984)
38.00 (1.496)
38.00 (1.496)
50.00 (1.968)
50.00 (1.968)
63.00 (2.480)
63.00 (2.480)
Yes
No
Yes
No
Yes
No
Yes
3.00 (0.118)
3.00 (0.118)
3.00 (0.118)
3.00 (0.118)
3.00 (0.118)
3.00 (0.118)
3.00 (0.118)
NOTE 1: This hole not present in SW25 model
Material: Aluminum
Finish: Black Anodize
5297, 5298, 5299, 5300
Extruded heat sink with large radial fins
Grease
&
Epoxy
page112
Mounting
Kits
page 99
Air Velocity—Feet Per Minute
100
0
200
400
600 800
1000
5
20.96
(0.825)
80
60
4
3
40
20
0
2
1
0
"A"
"C"
0
4
8 12
16
20
52970X
Heat Dissipated—Watts
Extruded heat sink with large radial
52980X
fins features equal channel widths on
Air Velocity—Feet Per Minute
"B"
3.96
both sides for single or dual device
mounting. Includes two solderable
mounting pins which permit vertical
mounting and eliminate stress on
device leads. Available in four heights
for TO-220, TO-218, and TO-247 devices.
100
80
60
40
0
200
400
600 800
1000
5
4
3
2
3.18
(0.125)
14.22
(0.560)
13.72
(0.540)
25.40
(0.156)
2x
? 2.36
(0.093) 2x
20
0
1
0
(1.000)
0
4
8 12
16
20
52990X
53000X
Heat Dissipated—Watts
1.57
ORDERING INFORMATION
Dia of PCB
Plated Thru
25.40
(1.000)
(0.062)
Part Number
529701B02500G
Device
TO-218, TO-247
“A” Dim
25.40 (1.000)
“B” Dim
21.59 (0.850)
“C” Dim
3.66 (0.144)
Hole for Pins
2.67 (0.105)
529702B02500G
529801B02500G
529802B02500G
529901B02500G
529902B02500G
530001B02500G
530002B02500G
TO-220
TO-218, TO-247
TO-220
TO-218, TO-247
TO-220
TO-218, TO-247
TO-220
25.40 (1.000)
38.10 (1.500)
38.10 (1.500)
50.80 (2.000)
50.80 (2.000)
63.50 (2.500)
63.50 (2.500)
18.29 (0.720)
21.59 (0.850)
18.29 (0.720)
21.59 (0.850)
18.29 (0.720)
21.59 (0.850)
18.29 (0.720)
3.17 (0.125)
3.66 (0.144)
3.17 (0.125)
3.66 (0.144)
3.17 (0.125)
3.66 (0.144)
3.17 (0.125)
2.67 (0.105)
2.67 (0.105)
2.67 (0.105)
2.67 (0.105)
2.67 (0.105)
2.67 (0.105)
2.67 (0.105)
17.02
(0.670)
41.91
(1.650)
Material: Aluminum
Finish: Black Anodize
For additional options see page 83
AMERICA
USA Tel: +1 (603) 224-9988 email: info@aavid.com
ASIA
Singapore Tel: +65 6362 8388 email: sales@aavid.com.sg
56
www.aavidthermalloy.com
EUROPE
Italy Tel: +39 051 764011 email: sales.it@aavid.com
United Kingdom Tel: +44 1793 401400 email: sales.uk@aavid.com
Taiwan Tel: +886(2) 2698-9888 email: sales@aavid.com.tw
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