Datasheet > ET50-202

ET50-202

更新时间： 2022-11-01 23:09:16

品牌	Logo	应用领域
威世 - VISHAY		电容器
页数	文件大小	规格书
4页	356K
描述
DC Filter Capacitors

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ET50-202 数据手册

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.

100

Fig. 1

1000

10 000

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

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.

at 20 °C

Power Factor

vs.

Temperature

2 %

1 kHz

1 %

50 Hz

Note

0 %

65 80

- 20

•

The impregnant used is a non toxic highly refined, purified and

inhibited mineral oil.

Fig. 2

DIELECTRIC RESISTANCE

APPLICATIONS

The ET range is specifically designed for high voltage filters

and can be successfully used in the following

(Parallel resistance) is indicated by the graph of insulance

(MΩ x μF) vs temperature fig. 3. The insulance (MÉ¹x μF) is

nominally 10 000 s at + 20 °C. (Measurements taken after

1 minute with an applied voltage of 500 V)

applications:

• By-pass

10⁵

• Coupling

10⁴

• Filter applications

• X-ray power supplies

• Electrostatic air deaners

10³

Insulance vs. Temperature

Typical Values

10²

- 40

TEMPERATURE RANGE

Fig. 3

Temperature range is - 55 °C to + 85 °C. Derating is

required for operation at higher temperatures.

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.

TEMPERATURE COEFFICIENT

Capacitance will increase by 2 % per 100 °C temperature

rise.

10⁵

CAPACITANCE RANGE

0.0005 μF to 2 μF. The tolerance is 10 %. ꢀther tolerances

are available on request. Nominal values measured at 1 kHz.

10⁴

10³

10²

VOLTAGE RANGE

1000 V_DCto 70 000 V_DC

150 °C

Rated Voltage

100

Fig. 4

Document Number: 13014

Revision: 11-Aug-10

For technical questions, contact: esta@vishay.com

www.vishay.com

12 3 4

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