HSS-B20-NPX-02 Datasheet, PDF (1/3 Pages) CUI INC – black anodized finish

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SERIES: HSS-B20-NPX-02 │ DESCRIPTION: HEAT SINK
FEATURES
• TO-220 package
• round or slot hole attachment options
• black anodized finish
• aluminum
date 03/30/2017
page 1 of 3
MODEL
mounting hole
type
size
(mm)
HSS-B20-NPR-02
round
Ø3.81
HSS-B20-NPS-02
slot
3.9 x 9.52
Note:
1. See performance curves for full thermal resistance details.
PERFORMANCE CURVES
@ 75°C ΔT,
nat conv
(°C/W)
14.71
14.71
thermal resistance¹
@ 1 W,
nat conv
(°C/W)
18.99
18.99
@ 1 W,
200 LFM
(°C/W)
4.20
4.20
@ 1 W,
400 LFM
(°C/W)
3.00
3.00
power
dissipation¹
@ 75°C ΔT,
nat conv
(W)
5.10
5.10
Heatsink Temperature Rise Above
Ambient (ΔT = Ths - Ta) (°C)
Power
(W)
Natural
Conv.
200 LFM 400 LFM
0
0
0
0
1
18.99
4.20
3.00
2
36.06
8.84
5.97
3
49.01
13.51
9.16
4
62.95
17.94
12.37
5
73.94
22.27
15.40
6
84.05
26.97
18.76
7
95.04
31.60
21.79
8
105.21
36.59
25.01
9
113.51
40.90
28.42
10
116.17
45.59
31.75
Ths: “hot spot” temperature measured on the heatsink
Ta: ambient temperature
100
Without Airflow
90
200 LFM
80
400 LFM
70
60
50
40
30
20
10
0
0
1
2
3
4
5
6
7
8
9
10
Heat Dissipated (W)
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