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Heat Sinks
Heat Sinks
CUI Device’s line of heat sinks is available in board level and BGA designs. Compatible with TO-218, TO-220, TO-252, and TO-263 transistor packages as well as ball grid array (BGA) package types, our aluminum heat sinks and copper heat sinks are conveniently measured under four conditions for thermal resistance, making it easier to select the optimal heat sink for your natural convection or forced air cooled system.
Types of Heat Sinks
Heat Sink Type
BGA, Extruded
Board Level, Extruded
Board Level, Stamped
Reset
Package Cooled
Not Applicable
TO-218
TO-220
TO-252
TO-263
Reset
Mounting Style
Adhesive
PCB
Surface Mount
Reset
Solder Pin Orientation
Horizontal
No Pin
Vertical
Reset
Solder Pin Length (mm)
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)
Min
Max
GO
4.49
4.74
4.85
4.97
5.21
5.47
5.66
5.77
5.86
6.15
6.25
6.41
6.65
6.94
7.13
7.29
7.5
7.56
7.58
7.59
7.62
7.65
7.81
7.96
7.98
8.06
8.15
8.24
8.35
8.43
8.97
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
11.11
11.19
11.54
11.63
11.72
11.84
12.1
12.23
12.36
12.5
12.71
12.75
12.79
12.93
13.16
13.64
13.67
13.7
14.42
14.71
15
15.16
15.19
15.41
15.5
15.79
15.83
15.96
16.3
16.66
17.05
17.39
17.74
18.1
18.12
18.29
18.34
18.63
18.82
18.83
19.22
19.59
19.74
19.75
20.27
20.41
20.59
20.83
20.93
21.44
22.06
22.39
23.68
23.9
23.91
24.01
24.08
24.19
24.79
25.35
25.4
25.44
25.46
25.86
25.92
26.13
26.32
26.4
27.37
27.66
27.78
28.85
29.09
29.57
29.73
30.38
31.22
32.69
33.28
35.71
35.98
37.9
38.45
38.75
38.9
39.1
Reset
Rth @ 1 W, nat conv (°C/W)
Min
Max
GO
5.1
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
9.28
9.37
9.6
9.7
9.81
9.9
9.93
10.1
10.49
10.51
10.52
10.6
10.92
10.96
11.01
11.06
11.1
11.15
11.17
11.54
11.67
12.28
12.29
12.33
12.5
12.7
12.98
12.99
13.03
13.19
13.31
13.4
13.52
13.6
13.64
13.8
13.97
14.1
14.33
14.35
14.4
14.7
14.8
15
15.27
15.42
15.8
15.97
16.1
16.12
16.16
16.2
16.65
16.8
16.9
17.13
17.29
17.9
18.2
18.58
18.6
18.99
19.1
19.57
19.73
19.8
20
20.24
20.27
20.74
20.99
21.3
21.9
21.92
22.14
22.39
22.47
22.5
22.6
22.64
22.9
23
23.05
23.32
24
24.3
24.5
24.62
26.05
26.1
26.6
27.22
28.6
28.8
29
29.1
29.2
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
39.7
39.9
40.16
41.2
41.6
41.9
41.98
42
43.3
Reset
Rth @ 1 W, 200 LFM (°C/W)
Min
Max
GO
1.4
2.01
2.1
2.24
2.29
2.31
2.38
2.45
2.5
2.57
2.6
2.63
2.67
2.7
2.78
2.8
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
3.6
3.62
3.63
3.64
3.66
3.7
3.73
3.76
3.79
3.8
3.86
3.9
3.94
4
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
4.5
4.51
4.7
4.76
4.8
4.85
4.93
5
5.01
5.1
5.17
5.3
5.39
5.44
5.5
5.6
5.72
5.77
5.83
5.87
5.88
6
6.12
6.3
6.32
6.5
6.7
6.8
6.84
6.86
6.9
7.05
7.07
7.24
7.45
7.46
7.51
7.7
7.74
7.8
7.9
8.15
8.18
8.36
8.4
8.5
8.6
8.8
9.2
9.51
9.6
9.7
10.05
10.1
10.49
10.6
10.68
10.9
11.04
11.2
11.6
12
12.6
13.1
13.2
14
15.8
16
16.3
16.5
16.6
19.2
20.9
21.4
Reset
Rth @ 1 W, 400 LFM (°C/W)
Min
Max
GO
0.9
1
1.11
1.22
1.5
1.55
1.6
1.66
1.7
1.71
1.79
1.8
1.82
1.86
1.9
1.91
2.07
2.09
2.1
2.12
2.13
2.14
2.21
2.25
2.31
2.4
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
4.3
4.48
4.5
4.51
4.58
4.7
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
6.09
6.1
6.2
6.25
6.41
6.5
6.53
6.7
6.8
6.81
6.84
7.3
7.5
7.87
7.88
8.1
8.48
8.5
8.6
8.9
9
9.3
10.3
10.8
10.9
11.2
11.6
12.3
13.8
14.8
15
Reset
PD @ 75°C ΔT, nat conv (W)
Min
Max
GO
1.92
1.93
1.94
1.95
1.98
2.08
2.1
2.25
2.29
2.4
2.47
2.52
2.54
2.58
2.6
2.7
2.71
2.74
2.84
2.85
2.87
2.89
2.9
2.95
2.96
3.03
3.1
3.11
3.12
3.14
3.17
3.35
3.4
3.5
3.58
3.6
3.64
3.67
3.7
3.8
3.83
3.9
3.98
4.02
4.09
4.1
4.14
4.23
4.31
4.4
4.5
4.6
4.7
4.74
4.75
4.76
4.84
4.87
4.94
4.95
5
5.1
5.2
5.47
5.49
5.5
5.7
5.8
5.86
5.88
5.9
6
6.07
6.13
6.2
6.33
6.4
6.45
6.5
6.7
6.75
6.8
6.88
6.9
7
7.3
7.36
7.4
7.7
7.8
7.85
8
8.1
8.2
8.36
8.9
8.98
9.1
9.2
9.3
9.4
9.43
9.6
9.8
9.84
9.89
9.9
9.92
10
10.29
10.53
10.8
11.28
11.69
11.7
12
12.2
12.79
12.8
13
13.26
13.7
14.4
15.1
15.46
15.83
16.7
Reset
Length (mm)
Min
Max
GO
8
8.5
10
12
12.7
14
14.99
15
17
17.78
18
18.79
19
19.05
19.38
20
21
21.66
23
23.4
23.62
24.4
25
25.4
27
27.96
28.5
29.97
30
30.3
30.7
31
31.75
31.8
33.5
35
36.83
37.4
38
38.1
40
41
41.66
41.91
42.5
43.1
44.45
45
49.31
50
50.8
60
63
63.5
70
Reset
Width (mm)
Min
Max
GO
8.5
10
12
12.8
13
13.21
14
16
16.5
17
17.8
18
19
19.4
19.7
19.8
20
21
21.1
22
22.2
22.86
23
24.9
25
25.25
25.4
25.91
26.2
27
28.5
29
30
30.7
31.5
31.9
32
33.02
33.5
34.5
34.92
35
37.4
38.1
40
41.6
42
43.1
44.45
45
48.26
50
51
60
Reset
Height (mm)
Min
Max
GO
4
4.5
5.35
6
6.35
6.5
7
7.1
7.5
7.7
8
8.5
9
9.4
9.5
9.52
9.53
9.65
9.91
10
10.16
11
11.2
11.43
11.5
11.94
12
12.5
12.7
12.9
13.08
14
14.1
15
16
16.51
18
18.5
19
20
21.59
22
24.13
25
25.4
28
32.5
45
Reset
Material
AL1050
AL1100
AL5052
AL6063-T5
C1100
Reset
Material Finish
Black Anodized
Blue Anodized
Tin Plated
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Rth = Thermal Resistance, PD = Power Dissipation
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