date 02/10/2020
page 1 of 5
SERIES: HSE-B20X-01 │ DESCRIPTION: HEAT SINK
cuidevices.com
FEATURES
• TO-220 package
• placement pins for secure PCB attachment
• slide in style
• multiple available cut lengths
MODEL thermal resistance1power
dissipation1
length
(mm)
@ 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-B20250-040H-01 25 13.64 18.58 4.44 3.30 5.50
HSE-B20380-040H-01 38 10.27 13.31 5.77 3.68 7.30
HSE-B20500-040H-01 50 8.43 11.67 2.85 1.91 8.90
HSE-B20630-040H-01 63 8.24 11.01 4.46 2.97 9.10
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
Mounting Surface Temperature
Rise Above Ambient (°C)
0
10
20
30
40
50
60
70
80
90
100
012345
6789
Without Airflow
200 LFM
400 LFM
Heatsink Temperature Rise Above
Ambient (ΔT = Ths - Ta) (°C)
Power
(W)
Natural
Conv. 200 LFM 400 LFM
0000
1 18.58 4.44 3.30
2 33.32 9.59 6.21
3 45.87 14.21 9.38
4 58.26 18.79 12.55
5 69.68 23.71 15.95
6 82.14 28.49 19.39
7 92.93 32.90 22.71
8 102.15 37.44 25.85
9 110.43 42.50 29.39
10 117.47 47.13 32.50
Ths: “hot spot” temperature measured on the heatsink
Ta: ambient temperature
HSE-B20250-040H-01
Additional Resources: Product Page | 3D Model