HSS-B20-NP-11 Datasheet, PDF (1/3 Pages) CUI INC – black anodized finish

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MODEL: HSS-B20-NP-11 │ DESCRIPTION: HEAT SINK
FEATURES
• TO-220 package
• round hole for component attachment
• black anodized finish
• aluminum
date 03/29/2017
page 1 of 3
MODEL
HSS-B20-NP-11
Note:
1. See performance curves for full thermal resistance details.
PERFORMANCE CURVES
@ 75°C ΔT,
nat conv
(°C/W)
17.05
thermal resistance¹
@ 1 W,
nat conv
(°C/W)
22.64
@ 1 W,
200 LFM
(°C/W)
6.86
@ 1 W,
400 LFM
(°C/W)
5.08
power
dissipation¹
@ 75°C ΔT,
nat conv
(W)
4.40
Heatsink Temperature Rise Above
Ambient (ΔT = Ths - Ta) (°C)
Power
(W)
Natural
Conv.
200 LFM 400 LFM
0
0
0
0
1
22.64
6.86
5.08
2
39.83
14.30
10.75
3
55.63
21.31
16.28
4
69.75
28.40
21.66
5
83.29
35.60
27.37
Ths: “hot spot” temperature measured on the heatsink
Ta: ambient temperature
100
90
Without Airflow
200 LFM
80
400 LFM
70
60
50
40
30
20
10
0
0
1
2
3
4
5
Dissipated Power (W)
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