ET
Vishay ESTA
DC Filter Capacitors
RIPPLE
The sum of the peak ripple voltage and the DC voltage
should not exceed the rated voltage. Refer to graph fig.1 for
permissible peak-to-peak ripple voltage as a percentage of
rated voltage for various frequencies.
30
% RIPPLE
20
10
0
10
100
1000
10 000
Hz
Fig. 1
TYPE ET
These capacitors are manufactured using a mixed dielectric
material that consists of polyester/polypropylene film and
capacitor tissue. They are impregnated and filled with a
mineral oil. The container is a Synthetic Resin Bonded Paper
tube sealed at both ends with resin assuring hermetic
sealing. The capacitors are terminated with M5 *12 mm
studs or tinned copper wire.
Note
• The impregnant used is a non toxic highly refined, purified and
inhibited mineral oil.
POWER FACTOR
The power factor is variable, and is a function of temperature
and frequency see fig. 2. Nominal value < 0.5 % at 20 °C
at 20 °C
2%
1%
0%
Power Factor
vs.
Temperature
1 kHz
50 Hz
- 20
0
40
65 80
Fig. 2
APPLICATIONS
The ET range is specifically designed for high voltage filters
and can be successfully used in the following
applications:
• By-pass
• Coupling
• Filter applications
• X-ray power supplies
• Electrostatic air deaners
DIELECTRIC RESISTANCE
(Parallel resistance) is indicated by the graph of insulance
(MΩ x μF) vs temperature fig. 3. The insulance (MÉ
1
x μF) is
nominally 10 000 s at + 20 °C. (Measurements taken after
1 minute with an applied voltage of 500 V)
MΩ x MF
10
5
10
4
10
3
10
2
Insulance vs. Temperature
Typical Values
- 40
0
40
80
TEMPERATURE RANGE
Temperature range is - 55 °C to + 85 °C. Derating is
required for operation at higher temperatures.
Fig. 3
LIFE EXPECTANCY
ET type capacitors are designed for a life exceptancy of
5000 h at 65 °C. To achieve the same life expectancy at
85 °C derate to 60 % of rated voltage fig. 4.
Hours
10
5
10
4
10
3
10
2
TEMPERATURE COEFFICIENT
Capacitance will increase by 2 % per 100 °C temperature
rise.
CAPACITANCE RANGE
0.0005 μF to 2 μF. The tolerance is ± 10 %. Other tolerances
are available on request. Nominal values measured at 1 kHz.
VOLTAGE RANGE
1000 V
DC
to 70 000 V
DC
Document Number: 13014
Revision: 11-Aug-10
50
100
150 °C
Rated Voltage
Fig. 4
For technical questions, contact:
esta@vishay.com
www.vishay.com
1
ET
Vishay ESTA
TEST VOLTAGE
Terminal/terminal (Vt/t)
For DC rating < 20 kV
Vt/t = 2.0 x rated voltage 60 s
For DC rating > 20 kV
Vt/t = 1.5 x rated voltage 60 s
DC Filter Capacitors
TYPE DESCRIPTION
PART NUMBER
1000 V
DC
WKG
ET10-103
ET10-203
ET10-503
ET10-254
ET10-504
ET10-205
1500 V
DC
WKG
ET15-103
ET15-203
ET15-254
ET15-504
ET15-105
ET15-205
2000 V
DC
WKG
ET20-103
ET20-503
ET20-104
ET20-254
L
CAP.
[μF]
0.01
(1)
0.02
(1)
L
[mm]
42
42
48
60
70
110
42
42
60
110
110
110
48
60
60
60
75
42
42
48
55
55
60
75
110
42
42
60
42
60
95
42
42
42
48
48
60
75
95
110
D
[mm]
17
17
17
22
30
35
17
20
30
25
35
42
17
17
22
30
35
17
20
20
25
30
35
42
42
17
17
22
20
30
42
17
17
20
20
22
25
30
35
42
0.05
0.25
0.5
2.0
0.01
(1)
0.02
(1)
0.25
0.5
1.0
2.0
0.01
(1)
0.05
0.1
0.25
0.5
0.005
(1)
0.01
(1)
WEIGHT
The approximate weight in grams may be calculated by
multiplying the volume of the capacitor container by
1.2 x 10
-3
.
TERMINATIONS
Add suffix W to part No. To indicate wire terminations.
CAPACITANCE
Capacitance tolerance of 20 % is standard with those
marked.
DIMENSIONS
in millimeters
ET20-504
12
5
12
D
3000 V
DC
WKG
ET30-502
ET30-103
ET30-203
ET30-503
ET30-104
ET30-254
ET30-504
ET30-105
4000 V
DC
WKG
ET40-102
ET40-502
ET40-503
ET40-103
ET40-104
ET40-504
5000 V
DC
WKG
ET50-102
ET50-202
ET50-502
ET50-103
ET50-203
ET50-503
ET50-104
ET50-254
ET50-504
0.001
(1)
0.002
(1)
0.005
0.01
0.02
0.05
0.1
0.25
0.5
(1)
0.02
0.05
0.1
0.25
0.5
1.0
0.001
(1)
0.005
0.05
0.01
0.1
0.5
(1)
Notes
(1)
Capacitance tolerance of 20 % is standard
• Non standard size containers can be supplied on request
www.vishay.com
2
For technical questions, contact:
esta@vishay.com
Document Number: 13014
Revision: 11-Aug-10
Legal Disclaimer Notice
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
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the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
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consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
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requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
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including but not limited to the warranty expressed therein.
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Document Number: 91000
Revision: 11-Mar-11
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