Stamped Heat Sinks

Ideal for lower power PCB cooling, CUI Devices’ stamped heat sinks are made from aluminum or copper with black anodized or tin-plated material finishes. Supporting a variety of transistor packages, our stampings are available in sizes from 8 to 50.8 mm with heights from 4 to 25.4 mm. Our stamped heat sinks are measured under four conditions for thermal resistance and carry power dissipation ratings from 2.1 up to 10.29 W at 75°C.

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Package Cooled
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TO-218
TO-220
TO-252
TO-263
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Mounting Style
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PCB
Surface Mount
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Solder Pin Orientation
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Horizontal
No Pin
Vertical
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Solder Pin Length (mm)
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Min
Max
GO
2.54
2.74
2.8
3.18
3.2
3.8
3.9
4
4.3
4.31
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)
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Min
Max
GO
7.29
7.59
7.65
9.56
10.14
10.19
10.9
11.03
11.54
12.75
12.79
13.67
14.71
15.16
15.5
15.79
15.83
16.3
16.66
17.05
17.74
18.12
18.29
18.34
18.63
18.82
19.22
19.74
20.59
20.83
20.93
22.06
22.39
23.9
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
32.69
33.28
35.71
Reset
Rth @ 1 W, nat conv (°C/W)
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Min
Max
GO
9.28
9.7
10.6
12.5
12.99
13.4
14.1
14.33
15.27
15.8
16.2
16.9
18.6
18.99
19.1
19.73
19.8
20
20.24
20.27
20.74
21.9
21.92
22.14
22.47
22.64
22.9
23.05
23.32
24.3
24.62
26.05
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
35.46
35.5
37.62
39.9
40.16
41.98
Reset
Rth @ 1 W, 200 LFM (°C/W)
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Min
Max
GO
2.01
3.47
3.5
3.51
3.7
3.76
4.2
4.3
4.51
4.8
5
5.01
5.39
5.44
5.5
5.6
5.72
5.83
5.87
5.88
6.3
6.32
6.5
6.86
6.9
7.05
7.24
7.45
7.46
7.51
7.7
7.9
8.15
8.18
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
Reset
Rth @ 1 W, 400 LFM (°C/W)
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Min
Max
GO
1.71
2.42
2.74
2.9
2.98
3
3.1
3.2
3.4
3.7
4
4.01
4.1
4.17
4.22
4.48
4.5
4.51
4.58
4.85
5.08
5.2
5.56
5.7
5.76
5.8
5.84
5.9
6.09
6.1
6.2
6.25
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
Reset
PD @ 75°C ΔT, nat conv (W)
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Min
Max
GO
2.1
2.25
2.29
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
3.14
3.35
3.4
3.58
3.6
3.64
3.8
3.9
3.98
4.02
4.09
4.1
4.14
4.23
4.4
4.5
4.6
4.74
4.75
4.76
4.84
4.95
5.1
5.49
5.86
5.88
6.5
6.8
6.88
7.36
7.4
7.85
9.8
9.89
10.29
Reset
Length (mm)
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Min
Max
GO
8
12.7
14.99
15
17.78
18.79
19
19.05
19.38
20
21.66
23.4
23.62
24.4
25.4
27.96
29.97
30
30.3
31
31.8
36.83
38
38.1
41
41.66
41.91
42.5
44.45
49.31
50.8
Reset
Width (mm)
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Min
Max
GO
12.8
13
13.21
17.8
19
19.7
19.8
20
21.1
22
22.2
22.86
24.9
25
25.25
25.4
25.91
26.2
32
33.02
35
38.1
42
44.45
48.26
51
Reset
Height (mm)
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Min
Max
GO
4
5.35
6.35
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
12.5
12.7
12.9
13.08
18.5
19
20
21.59
24.13
25
25.4
Reset
Material
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AL1050
AL1100
AL5052
C1100
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Material Finish
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Black Anodized
Tin Plated
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Rth = Thermal Resistance, PD = Power Dissipation

Results 67
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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-218, TO-220 Vertical 3.9 32.7 AL1050 Black Anodized 19 x 19 x 9.5 0.75 x 0.75 x 0.37
TO-218, TO-220 Horizontal 4.3 29.7 AL1050 Black Anodized 30.3 x 22.2 x 5.35 1.19 x 0.87 x 0.21
TO-218, TO-220 Horizontal 3.8 19.8 AL1050 Black Anodized 50.8 x 35 x 8.5 2 x 1.38 x 0.35
TO-218, TO-220 Horizontal 5.1 16.2 AL1050 Black Anodized 42.5 x 25.4 x 25.4 1.67 x 1 x 1
TO-218, TO-220 No Pin -- 12.5 AL1050 Black Anodized 38 x 42 x 25 1.5 x 1.65 x 0.98
TO-218, TO-220 No Pin -- 13.4 AL1050 Black Anodized 38 x 42 x 20 1.5 x 1.65 x 0.79
TO-218, TO-220 Horizontal 5.3 24.3 AL1050 Black Anodized 24.4 x 25.4 x 12.7 0.96 x 1 x 0.5
TO-218, TO-220 No Pin -- 31.2 AL1050 Black Anodized 19 x 22 x 19 0.75 x 0.87 x 0.75
TO-218, TO-220 No Pin -- 26.6 AL1050 Black Anodized 19 x 22 x 19 0.75 x 0.87 x 0.75
TO-220 Horizontal 4 18.6 AL1050 Black Anodized 23.4 x 38.1 x 12.7 0.92 x 1.5 x 0.5
TO-220 No Pin -- 28.6 AL5052 Black Anodized 19.05 x 24.9 x 4 0.75 x 0.98 x 0.16
TO-220 No Pin -- 19.1 AL5052 Black Anodized 31 x 25.25 x 12.9 1.22 x 0.99 x 0.51
TO-220 Horizontal 9.5 32.8 AL5052 Black Anodized 19 x 22 x 11 0.75 x 0.87 x 0.43
TO-220 Horizontal 3.8 20 AL1050 Black Anodized 50.8 x 32 x 12.7 2 x 1.26 x 0.5
TO-220 Horizontal 4 21.9 AL1050 Black Anodized 29.97 x 25.4 x 12.7 1.18 x 1 x 0.5
TO-220 Horizontal 4.31 22.9 AL1050 Black Anodized 29.97 x 25.4 x 12.7 1.18 x 1 x 0.5
TO-220 Horizontal 2.74 35.5 C1100 Tin Plated 21.66 x 13.21 x 13.08 0.85 x 0.52 x 0.52
TO-220 Horizontal 3.2 30.4 C1100 Tin Plated 27.96 x 22 x 9.52 1.1 x 0.87 x 0.38
TO-220 No Pin -- 39.9 C1100 Tin Plated 12.7 x 26.2 x 9.91 0.5 x 1.03 x 0.39
TO-220 Horizontal 3.18 15.8 AL1050 Black Anodized 41.91 x 44.45 x 9.65 1.65 x 1.75 x 0.38
TO-220 Horizontal 3.18 16.9 AL1050 Black Anodized 41.66 x 33.02 x 11.94 1.64 x 1.3 x 0.47
TO-220 Horizontal 8.26 14.1 AL1050 Black Anodized 23.62 x 48.26 x 24.13 0.93 x 1.9 x 0.95
TO-220 Horizontal 8.26 10.6 AL1050 Black Anodized 49.31 x 48.26 x 24.13 1.94 x 1.9 x 0.95
TO-263 No Pin -- 21.9 C1100 Tin Plated 19.38 x 25.4 x 11.43 0.76 x 1 x 0.45
TO-220 Horizontal 5.08 12.99 AL1100 Black Anodized 42.5 x 25.4 x 25.4 1.67 x 1 x 1
Results 67
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