Board Level Heat Sinks

Featuring a variety of standard extrusions and stampings, Same Sky's board level heat sinks are compatible with TO-218, TO-220, TO-252, and TO-263 transistor package types. Our board level heat sinks are made from aluminum or copper with black anodized, blue anodized, or tin-plated material finishes. Our board level heat sinks also support a range of standard shapes and sizes from 8 mm up to 70 mm and profiles from 4 mm up to 45 mm.

Types of Board Level Heat Sinks

Filters | Reset All
Package Cooled
dropdn-arrow
Not Applicable
TO-218
TO-220
TO-252
TO-263
Reset
Mounting Style
dropdn-arrow
PCB
Surface Mount
Reset
Solder Pin Orientation
dropdn-arrow
Horizontal
No Pin
Vertical
Reset
Solder Pin Length (mm)
dropdn-arrow
Min
Max
GO
2.3
2.54
2.6
2.65
2.74
2.8
2.95
3.18
3.2
3.5
3.8
3.9
3.96
4
4.3
4.31
4.5
5
5.03
5.08
5.1
5.3
6.1
6.35
6.5
7.4
8.26
8.5
9.5
9.53
9.7
Reset
Rth @ 75°C ΔT, nat conv (°C/W)
dropdn-arrow
Min
Max
GO
4.49
4.85
4.97
5.21
5.47
5.66
5.77
5.86
6.15
6.25
6.41
6.94
7.13
7.29
7.5
7.58
7.59
7.65
7.81
7.98
8.06
8.15
8.24
8.43
9.15
9.26
9.38
9.56
9.62
9.74
10.14
10.19
10.27
10.71
10.87
10.9
11.03
11.19
11.54
11.72
12.1
12.5
12.71
12.75
12.79
12.93
13.16
13.64
13.67
14.42
14.71
15
15.16
15.5
15.79
15.83
15.96
16.3
16.66
17.05
17.74
18.12
18.29
18.34
18.63
18.82
18.83
19.22
19.74
19.75
20.27
20.59
20.83
20.93
21.44
22.06
22.39
23.9
24.19
24.79
25.35
25.86
25.92
26.13
26.32
26.4
27.37
27.66
27.78
28.85
29.09
29.57
30.38
31.22
32.69
33.28
35.71
38.45
38.75
38.9
Reset
Rth @ 1 W, nat conv (°C/W)
dropdn-arrow
Min
Max
GO
5.2
5.5
6.61
7
7.36
7.6
7.62
7.9
7.99
8.05
8.34
8.51
8.52
8.63
8.71
8.94
9.28
9.37
9.7
9.81
9.93
10.49
10.51
10.52
10.6
10.92
10.96
11.01
11.06
11.15
11.17
11.54
11.67
12.28
12.29
12.33
12.5
12.98
12.99
13.03
13.19
13.31
13.4
13.52
13.6
13.64
13.97
14.1
14.33
14.35
14.4
15
15.27
15.42
15.8
15.97
16.12
16.16
16.2
16.65
16.9
17.13
17.29
18.58
18.6
18.99
19.1
19.57
19.73
19.8
20
20.24
20.27
20.74
20.99
21.9
21.92
22.14
22.39
22.47
22.6
22.64
22.9
23.05
23.32
24.3
24.62
26.05
26.1
26.6
27.22
28.6
29.7
30.28
30.4
30.86
31.07
31.2
31.94
32.65
32.7
32.8
33.89
33.93
34.4
35.3
35.46
35.5
37.62
39.9
40.16
41.2
41.6
41.98
42
Reset
Rth @ 1 W, 200 LFM (°C/W)
dropdn-arrow
Min
Max
GO
2.01
2.1
2.24
2.29
2.31
2.38
2.45
2.5
2.57
2.63
2.67
2.7
2.78
2.85
2.88
2.91
2.98
3.09
3.26
3.28
3.32
3.44
3.47
3.5
3.51
3.52
3.53
3.62
3.63
3.64
3.66
3.7
3.73
3.76
3.79
3.86
3.94
4.03
4.05
4.2
4.28
4.3
4.33
4.35
4.38
4.39
4.42
4.44
4.46
4.49
4.51
4.76
4.8
4.85
4.93
5
5.01
5.17
5.39
5.44
5.5
5.6
5.72
5.77
5.83
5.87
5.88
6.12
6.3
6.32
6.5
6.7
6.84
6.86
6.9
7.05
7.07
7.24
7.45
7.46
7.51
7.7
7.74
7.9
8.15
8.18
8.36
8.5
8.8
9.2
9.51
10.05
10.1
10.49
10.6
10.68
10.9
11.04
11.2
11.6
12
12.6
13.2
14
16.3
16.6
19.2
20.9
21.4
Reset
Rth @ 1 W, 400 LFM (°C/W)
dropdn-arrow
Min
Max
GO
1
1.11
1.22
1.55
1.66
1.7
1.71
1.79
1.8
1.82
1.86
1.91
2.07
2.09
2.12
2.13
2.14
2.21
2.25
2.31
2.42
2.43
2.44
2.48
2.49
2.5
2.52
2.56
2.57
2.6
2.74
2.76
2.8
2.82
2.84
2.86
2.88
2.89
2.9
2.97
2.98
3
3.1
3.17
3.2
3.21
3.27
3.28
3.3
3.31
3.4
3.44
3.68
3.7
4
4.01
4.1
4.13
4.17
4.2
4.22
4.48
4.5
4.51
4.58
4.85
5.05
5.08
5.18
5.2
5.56
5.7
5.76
5.77
5.79
5.8
5.84
5.9
6.09
6.1
6.2
6.25
6.41
6.5
6.53
6.7
6.81
6.84
7.3
7.5
7.87
7.88
8.1
8.48
8.5
8.6
8.9
9
10.3
10.8
10.9
13.8
14.8
15
Reset
PD @ 75°C ΔT, nat conv (W)
dropdn-arrow
Min
Max
GO
1.93
1.94
1.95
2.1
2.25
2.29
2.4
2.47
2.54
2.58
2.6
2.7
2.71
2.74
2.84
2.85
2.87
2.89
2.9
2.96
3.03
3.1
3.14
3.35
3.4
3.5
3.58
3.6
3.64
3.7
3.8
3.9
3.98
4.02
4.09
4.1
4.14
4.23
4.4
4.5
4.6
4.7
4.74
4.75
4.76
4.84
4.95
5
5.1
5.2
5.49
5.5
5.7
5.8
5.86
5.88
5.9
6
6.2
6.4
6.5
6.7
6.8
6.88
6.9
7
7.3
7.36
7.4
7.7
7.8
7.85
8
8.1
8.2
8.9
9.1
9.2
9.3
9.4
9.6
9.8
9.89
9.9
10
10.29
10.53
10.8
11.7
12
12.2
12.79
12.8
13
13.26
13.7
14.4
15.1
15.46
16.7
Reset
Length (mm)
dropdn-arrow
Min
Max
GO
8
12
12.7
14.99
15
17
17.78
18.79
19
19.05
19.38
20
21.66
23.4
23.62
24.4
25
25.4
27
27.96
29.97
30
30.3
31
31.75
31.8
35
36.83
38
38.1
41
41.66
41.91
42.5
44.45
49.31
50
50.8
63
63.5
70
Reset
Width (mm)
dropdn-arrow
Min
Max
GO
12
12.8
13
13.21
16
16.5
17.8
19
19.4
19.7
19.8
20
21.1
22
22.2
22.86
24.9
25
25.25
25.4
25.91
26.2
29
30
31.9
32
33.02
34.5
34.92
35
38.1
41.6
42
44.45
45
48.26
50
51
Reset
Height (mm)
dropdn-arrow
Min
Max
GO
4
4.5
5.35
6.35
6.5
7.1
7.7
8.5
9.4
9.5
9.52
9.53
9.65
9.91
10
10.16
11
11.2
11.43
11.94
12
12.5
12.7
12.9
13.08
14
16
18.5
19
20
21.59
24.13
25
25.4
28
32.5
45
Reset
Material
dropdn-arrow
AL1050
AL1100
AL5052
AL6063-T5
C1100
Reset
Material Finish
dropdn-arrow
Black Anodized
Blue Anodized
Tin Plated
Reset

Rth = Thermal Resistance, PD = Power Dissipation


Results 138
Show
Model Number Package Cooled Solder Pin Orientation Solder Pin Length (mm) Thermal Resistance @ 1 W, nat conv (°C/W) Material Material Finish Dimensions LxWxH (mm) Dimensions LxWxH (in)
TO-220 No Pin -- 18.99 AL1050 Black Anodized 29.97 x 25.4 x 12.7 1.18 x 1 x 0.5
TO-220 No Pin -- 32.65 AL1050 Black Anodized 18.79 x 22.86 x 9.52 0.74 x 0.9 x 0.37
TO-220 No Pin -- 22.47 AL1050 Black Anodized 29.97 x 25.4 x 12.7 1.18 x 1 x 0.5
TO-220 No Pin -- 21.92 AL5052 Black Anodized 20 x 19.7 x 7.7 0.79 x 0.78 x 0.3
TO-220 Horizontal 6.1 30.86 AL5052 Black Anodized 19 x 12.8 x 12.7 0.75 x 0.5 x 0.5
TO-220 No Pin -- 22.64 AL1050 Black Anodized 17.78 x 19.8 x 21.59 0.7 x 0.78 x 0.85
TO-220 Horizontal 6.1 31.07 AL5052 Black Anodized 19 x 13 x 12.7 0.75 x 0.51 x 0.5
TO-220 Horizontal 5.08 20.74 AL1050 Black Anodized 29.97 x 25.4 x 12.7 1.18 x 1 x 0.5
TO-220 Horizontal 9.5 23.32 AL5052 Black Anodized 19 x 22 x 11.2 0.75 x 0.87 x 0.44
TO-220 Horizontal 6.1 37.62 AL5052 Black Anodized 15 x 12.8 x 12.7 0.59 x 0.5 x 0.5
TO-220 Horizontal 7.4 27.22 AL5052 Black Anodized 19 x 21.1 x 10 0.75 x 0.83 x 0.39
TO-220 Horizontal 6.35 35.46 AL1050 Black Anodized 19.05 x 13.21 x 6.35 0.75 x 0.52 x 0.25
TO-220 Horizontal 6.1 23.05 AL5052 Black Anodized 38.1 x 12.8 x 12.7 1.5 x 0.5 x 0.5
Results 138
Show
Back to Top

Resources

Here to assist you at every stage of the design journey.