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CUI Inc

│ SERIES: HSE-B18X-035H │ DESCRIPTION: HEAT SINK

date 09/07/2017

│ page 5 of 7

0

10

20

30

40

50

60

70

80

90

100

012

34

5

Dissipated Power (W)

678

9101112131415

Without Airflow

200 LFM

400 LFM

16

19

17 18

20

Heatsink Temperature Rise Above

Ambient (ΔT = Ths - Ta) (°C)

Power

(W)

Natural

Conv.

200 LFM

400 LFM

0

0

0

0

1

6.61

2.24

1.22

2

12.73

4.57

2.80

3

17.96

7.08

4.43

4

23.17

9.36

5.95

5

27.87

11.84

7.45

6

32.13

14.18

9.12

7

37.08

16.65

10.83

8

41.69

19.14

12.37

9

45.91

21.56

13.84

10

49.93

24.05

15.42

11

53.54

26.41

17.20

12

57.87

28.59

18.81

13

61.43

31.04

20.31

14

65.76

33.48

21.97

15

69.68

35.82

23.48

16

73.44

38.17

25.05

17

77.08

40.51

26.93

18

80.18

42.90

28.82

19

83.71

45.25

30.61

20

87.57

47.63

32.29

Ths: “hot spot” temperature measured on the heatsink

Ta: ambient temperature

HSE-B18635-035H

PERFORMANCE CURVES (CONTINUED)

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