Additional Resources:
Product Page
date
08/05/2022
page 1 of 4
MODEL: HSE-BX-056H | DESCRIPTION: HEAT SINK
FEATURES
• TO-220 package
• placement pins for secure PCB attachment
• round hole for component attchment
• multiple available cut lengths
MODEL
thermal resistance1
length
(mm)
power
dissipation1
@ 75°C ΔT, nat
conv (°C/W)
@ 1 W,
nat conv
(°C/W)
@ 1 W,
200 LFM
(°C/W)
@ 1 W,
400 LFM
(°C/W)
@ 75°C ΔT, nat
conv
(W)
HSE-B20254-056H
25.4
13.64
17.13
8.36
6.41
5.50
HSE-B20381-056H
38.1
11.19
15.00
3.53
2.56
6.70
Note:
1. See performance curves for full thermal resistance details.
2. Custom cut to length options available. Thermal data not available on custom lengths.
PERFORMANCE CURVES
HSE-B20254-056H
100
Without Airflow
Heatsink Temperature Rise Above
Ambient (ΔT = Ths - Ta) (°C)
90
200 LFM
400 LFM
0
0
0
0
1
17.13
8.36
6.41
2
32.20
17.46
11.75
3
45.00
24.87
17.28
4
58.12
32.88
23.43
5
69.84
40.99
29.16
6
80.93
48.89
34.64
10
7
91.01
56.79
40.37
0
8
99.56
65.43
46.09
110.81
72.66
52.01
118.44
82.03
57.73
Mounting Surface Temperature
Rise Above Ambient (°C)
Natural
Conv.
9
400 LFM
80
Power
(W)
10
200 LFM
70
60
50
40
30
20
0
1
Ths: “hot spot” temperature measured on the heatsink
Ta: ambient temperature
cuidevices.com
2
3
4
5
6
Dissipated Power (W)
7
8
9
10
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Product Page
CUI DEVICES | MODEL: HSE-BX-056H | DESCRIPTION: HEAT SINK
date 08/05/2022 | page 2 of 4
PERFORMANCE CURVES (CONTINUED)
HSE-B20381-056H
Power
(W)
Natural
Conv.
200 LFM
400 LFM
0
0
0
0
1
15.00
3.53
2.56
2
27.32
7.15
5.23
3
38.89
10.82
7.90
4
49.63
14.38
10.72
5
59.72
17.90
13.32
6
69.31
21.80
16.03
7
77.53
25.42
18.80
8
87.53
28.89
21.65
9
95.75
32.68
24.48
10
104.38
36.30
27.29
100
Without Airflow
90
Mounting Surface Temperature
Rise Above Ambient (°C)
Heatsink Temperature Rise Above
Ambient (ΔT = Ths - Ta) (°C)
200 LFM
400 LFM
80
70
60
50
40
30
20
10
0
0
1
Ths: “hot spot” temperature measured on the heatsink
Ta: ambient temperature
cuidevices.com
2
3
4
5
6
Dissipated Power (W)
7
8
9
10
Additional Resources:
Product Page
CUI DEVICES | MODEL: HSE-BX-056H | DESCRIPTION: HEAT SINK
date 08/05/2022 | page 3 of 4
MECHANICAL DRAWING
units: mm
tolerance: ±0.5 mm
MATERIAL
AL 6063-T5
FINISH
black anodized
PIN MATERIAL
steel
PIN PLATING
tin
*
Note:
MODEL NO.
LENGTH, L
(mm)
HSE-B20254-056H*
25.4
11.33
HSE-B20381-056H
38.1
16.67
* Mounting hole not present on 25.4 mm length model.
cuidevices.com
WEIGHT
(g)
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Product Page
CUI DEVICES | MODEL: HSE-BX-056H | DESCRIPTION: HEAT SINK
date 08/05/2022 | page 4 of 4
REVISION HISTORY
rev.
description
date
1.0
initial release
05/05/2017
1.01
updated datasheet
09/07/2017
1.02
brand update
02/11/2020
logo, datasheet style update
08/05/2022
1.03
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 effectiveness.
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