MKP1847H AC Filtering

www.vishay.com

Vishay Roederstein

Revision: 16-Mar-17

9

Document Number: 26067

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

Maximum RMS current as function of frequency

Maximum RMS current as function of frequency

POWER DISSIPATION AND MAXIMUM COMPONENT TEMPERATURE RISE

The power dissipation must be limited in order not to exceed the maximum allowed component temperature rise as a function

of the free air ambient temperature.

The component temperature rise (

T) can be measured or calculated by T = P/G:

•

T = component temperature rise (°C) with a maximum of 15 °C

• P = power dissipation of the component (mW)

• G = heat conductivity of the component (mW/°C)

MEASURING THE COMPONENT TEMPERATURE

The temperature rise is given by

T = T

To avoid thermal radiation or convection, the capacitor must be tested in a closed area from air circulation.

10

100

1000

10000

0.1

1

10

100

10

100

1000

10 000

100 000

Axis Title

f (Hz)

2nd line

1 μF

22 μF

10 μF

10

100

1000

10000

0.1

1

10

100

10

100

1000

10 000

100 000

Axis Title

f (Hz)

2nd line

2 μF

7 μF

HEAT CONDUCTIVITY

DIMENSION (mm)

HEAT CONDUCTIVITY

(mW/°C)

wh

l

13.0

23.0

32.0

22

15.0

25.0

32.0

25

18.0

28.0

32.0

30

21.0

31.0

32.0

35

22.0

38.0

32.0

41

21.5

38.5

42.0

52

30.0

45.0

42.0

70

30.0

45.0

57.5

86

35.0

50.0

57.5

100

Thermocouple