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MKP1847 AC Capacitors
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HEAT CONDUCTIVITY
DIMENSIONS (mm)
Vishay Roederstein
HEAT CONDUCTIVITY (mW/°C)
w
9.0
11.0
13.0
15.0
18.0
21.0
18.5
21.5
24.0
30.0
25.0
30.0
35.0
45.0
h
19.0
21.0
23.0
25.0
28.0
31.0
35.5
38.5
44.0
45.0
45.0
45.0
50.0
45.0
l
32.0
32.0
32.0
32.0
32.0
32.0
43.0
43.0
42.0
42.0
57.5
57.5
57.5
57.5
PITCH 27.5 mm PITCH 37.5 mm PITCH 52.5 mm
16 - -
19 - -
22 - -
25 - -
30 - -
35 - -
- 45 -
- 51 -
- 59 -
- 68 -
- - 77
- - 85
- - 100
- - 108
?
2 x ? ? ------- ? x dt ? U NDC x ? ------- ?
? dt ? rated ?
? dt ?
?
?
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
Thermocouple
The case temperature is measured in unloaded (T amb ) and maximum loaded condition (T C ). ?
The temperature rise is given by ? T = T C - T amb . ?
To avoid thermal radiation or convection, the capacitor must be tested in a closed area from air circulation.
APPLICATION NOTE AND LIMITING CONDITIONS
These capacitors are not suitable for mains applications as across-the-line capacitors without additional protection. ?
These mains applications are strictly regulated in safety standards and therefore electromagnetic interference suppression
capacitors conforming the standards must be used.
To select the capacitor for a certain application, the following conditions must be checked:
? The peak voltage (U P+ ) shall not be greater than ? 2 x U RMS
? The peak-to-peak ripple voltage (U PP ) shall not be greater than 0.2 x ? 2 x U RMS
? The voltage pulse slope (dU/dt) shall not exceed the rated pulse slope at the DC voltage rating. ?
If the pulse voltage is lower than the rated DC voltage, the rated voltage pulse slope may be multiplied by U NDC and divided
by the applied voltage. ?
For all other pulses following equation must be fulfilled: ?
T
dU 2 dU
0
T is the pulse duration
? The maximum component surface temperature must be lower than 105 °C and maximum temperature rise between case and
free air ambient shall be lower than 15 °C.
Revision: 28-Nov-13
11
Document Number: 28172
For technical questions, contact: dc-film@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
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MKP1847622254P2
功能描述:薄膜电容器 22uF 250VAC 5% 30x45x42 2-pin radial 60K Hrs RoHS:否 制造商:Cornell Dubilier 产品类型: 电介质:Polyester 电容:0.047 uF 容差:10 % 电压额定值:100 V 系列:225P 工作温度范围:- 55 C to + 85 C 端接类型:Radial 引线间隔:9.5 mm
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MKP1847622254P5
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MKP1847622254Y2
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