MKP 1840 M
AC and Pulse Metallized Polypropylene Film Capacitors
MKP Radial Potted Type
Vishay Roederstein
HEAT CONDUCTIVITY (G) AS A FUNCTION OF ORIGINAL PITCH AND CAPACITOR BODY
THICKNESS IN mW/°C
HEAT CONDUCTIVITY (mW/°C)
PITCH 10 mm PITCH 15 mm PITCH 22.5 mm PITCH 27.5 mm PITCH 37.5 mm
Wmax.
(mm)
PITCH 5 mm
PITCH 7.5 mm
3.0
3.5
2.5
4.0
-
-
-
-
-
3.5
-
-
-
-
-
-
4.0
-
5.0
6.0
-
-
-
-
4.5
4.5
5.5
6.5
-
-
-
-
5.0
5.0
6.5
-
-
-
-
-
5.5
6.5
-
-
7.5
-
7.5
9.0
-
-
-
5.7
-
-
-
-
-
-
6.0
-
10.5
-
-
-
6.5
-
-
9.0
-
11.5
17.0
-
-
7.5
-
-
13.5
19.0
-
-
8.5
-
-
-
15.0
16.5
-
-
9.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
22.5
-
-
-
10.5
11.0
11.5
13.5
14.5
15.0
16.5
18.0
18.0
18.0
20.0
-
-
-
26.5
-
-
-
-
30.5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
33.5
41.0
-
-
-
-
-
-
-
-
-
52.0
-
-
-
45.0
57.0
57.0
67.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
75.5
99.0
-
-
-
-
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 power dissipation can be calculated according type detail specification “HQN-384-01/101: Technical Information Film
Capacitors” with the typical tgd of the curves.
The component temperature rise (ΔT) can be measured (see section “Measuring the Component Temperature” for more details)
or calculated by ΔT = P/G:
• ΔT = Component temperature rise (°C)
• P = Power dissipation of the component (mW)
• G = Heat conductivity of the component (mW/°C)
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For technical questions, contact: dc-film@vishay.com
Document Number: 26018
Revision: 01-Jul-10