HSS-B20-0452H Datasheet, PDF (1/3 Pages) CUI INC – shur-lock tabs

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MODEL: HSS-B20-0452H │ DESCRIPTION: HEAT SINK
FEATURES
• TO-220 package
• shur-lock tabs
• black anodized finish
• aluminum
date 03/30/2017
page 1 of 3
MODEL
HSS-B20-0452H
Note:
1. See performance curves for full thermal resistance details.
PERFORMANCE CURVES
@ 75°C ΔT,
nat conv
(°C/W)
23.81
thermal resistance¹
@ 1 W,
nat conv
(°C/W)
31.83
@ 1 W,
200 LFM
(°C/W)
6.40
@ 1 W,
400 LFM
(°C/W)
4.74
power
dissipation¹
@ 75°C ΔT,
nat conv
(W)
3.15
100
Power
(W)
0
1
Heatsink Temperature Rise Above
Ambient (ΔT = Ths - Ta) (°C)
Natural
Conv.
200 LFM 400 LFM
0
0
0
31.83
6.40
4.74
90
Without Airflow
200 LFM
80
400 LFM
70
60
50
2
55.26
12.91
9.31
40
3
72.42
19.27
13.93
4
86.68
25.77
18.75
5
101.18
32.39
23.22
Ths: “hot spot” temperature measured on the heatsink
Ta: ambient temperature
30
20
10
0
0
1
2
3
4
5
Heat Dissipated (W)
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