1. See performance curves for full thermal resistance details.
2. Placement pins with standoffs.
3. Custom cut to length options available. Thermal data not available on custom lengths.
PERFORMANCE CURVES
HSE-B20254-035H
Heatsink Temperature Rise Above
Ambient (ΔT = Ths - Ta) (°C)
Power
(W)
0
1
2
3
4
5
6
7
8
9
10
Natural
Conv.
0
14.40
28.52
43.03
56.78
67.70
77.09
86.63
95.53
103.32
112.39
200 LFM
0
3.28
6.90
10.51
13.98
17.81
21.84
25.55
29.43
33.25
37.35
400 LFM
0
2.49
5.02
7.48
9.87
12.71
14.82
17.33
19.68
22.19
24.51
100
90
Without Airflow
200 LFM
400 LFM
Mounting Surface Temperature
Rise Above Ambient (°C)
80
70
60
50
40
30
20
10
0
0
1
2
3
Ths: “hot spot” temperature measured on the heatsink
Ta: ambient temperature
Dissipated Power (W)
4
5
6
7
8
9
10
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Additional Resources:
Product Page
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3D Model
CUI Devices
│
SERIES:
HSE-BX-02
│
DESCRIPTION:
HEAT SINK
date
02/10/2020│
page
2 of 5
PERFORMANCE CURVES (CONTINUED)
HSE-B20381-035H
100
Without Airflow
200 LFM
400 LFM
Heatsink Temperature Rise Above
Ambient (ΔT = Ths - Ta) (°C)
200 LFM
0
3.66
6.96
10.35
13.65
17.05
20.69
24.37
27.82
30.95
34.45
400 LFM
0
2.76
5.06
7.51
9.97
12.65
15.04
17.45
19.84
22.10
24.85
Mounting Surface Temperature
Rise Above Ambient (°C)
90
80
70
60
50
40
30
20
10
0
0
Power
(W)
0
1
2
3
4
5
6
7
8
9
10
Natural
Conv.
0
13.64
25.38
40.52
51.51
61.79
71.27
80.06
89.74
97.27
105.15
1
2
3
Dissipated Power (W)
4
5
6
7
8
9
10
Ths: “hot spot” temperature measured on the heatsink
Ta: ambient temperature
HSE-B20508-035H(-W)
100
Without Airflow
200 LFM
400 LFM
Heatsink Temperature Rise Above
Ambient (ΔT = Ths - Ta) (°C)
Mounting Surface Temperature
Rise Above Ambient (°C)
90
80
70
60
50
40
30
20
10
0
0
Power
(W)
0
1
2
3
4
5
6
7
8
9
10
Natural
Conv.
0
12.98
23.69
33.43
43.43
52.51
61.06
69.25
77.11
84.38
92.34
200 LFM
0
5.17
10.43
16.23
22.15
27.62
33.03
38.72
43.92
49.28
54.09
400 LFM
0
3.28
7.01
9.87
14.05
18.06
22.24
26.25
30.07
33.81
36.92
1
2
3
Dissipated Power (W)
4
5
6
7
8
9
10
Ths: “hot spot” temperature measured on the heatsink
Ta: ambient temperature
cuidevices.com
Additional Resources:
Product Page
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3D Model
CUI Devices
│
SERIES:
HSE-BX-02
│
DESCRIPTION:
HEAT SINK
date
02/10/2020│
page
3 of 5
PERFORMANCE CURVES (CONTINUED)
HSE-20635-035H(-W)
Heatsink Temperature Rise Above
Ambient (ΔT = Ths - Ta) (°C)
Power
(W)
0
1
2
3
4
5
6
7
8
9
10
Natural
Conv.
0
10.92
20.75
29.43
37.74
45.32
53.03
59.98
66.72
73.88
80.40
200 LFM
0
4.35
9.46
14.60
19.72
24.84
29.05
33.85
38.44
43.38
47.80
400 LFM
0
2.86
5.94
9.20
12.44
15.80
19.04
22.26
25.51
28.69
32.10
100
90
Without Airflow
200 LFM
400 LFM
Mounting Surface Temperature
Rise Above Ambient (°C)
80
70
60
50
40
30
20
10
0
0
1
2
3
Ths: “hot spot” temperature measured on the heatsink
Ta: ambient temperature
Dissipated Power (W)
4
5
6
7
8
9
10
cuidevices.com
Additional Resources:
Product Page
|
3D Model
CUI Devices
│
SERIES:
HSE-BX-02
│
DESCRIPTION:
HEAT SINK
date
02/10/2020│
page
4 of 5
MECHANICAL DRAWING
units: mm
tolerance: ±0.5 mm
MATERIAL
FINISH
PIN MATERIAL
PIN PLATING
AL 6063-T5
black anodized
steel
tin
-W Models
*
*
MODEL NO.
HSE-B20254-035H*
HSE-B20381-035H
HSE-B20508-035H
HSE-B20508-035H-W
HSE-B20635-035H
HSE-B20635-035H-W
Note:
* Mounting hole not present on 25.4 mm length model.
LENGTH, L
(mm)
25.4
38.1
50.8
50.8
63.5
63.5
WEIGHT
(g)
11.33
16.67
22.22
22.22
27.5
27.5
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Additional Resources:
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3D Model
CUI Devices
│
SERIES:
HSE-BX-02
│
DESCRIPTION:
HEAT SINK
date
02/10/2020│
page
5 of 5
REVISION HISTORY
rev.
1.0
1.01
1.02
description
initial release
updated datasheet
brand update
date
05/09/2017
09/11/2017
02/10/2020
The revision history provided is for informational purposes only and is believed to be accurate.
CUI Devices offers a one (1) year limited warranty. Complete warranty information is listed on our website.
CUI Devices reserves the right to make changes to the product at any time without notice. Information provided by CUI Devices is believed to be accurate and reliable. However, no
responsibility is assumed by CUI Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI Devices products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any
component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or
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