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ET30-502 Datasheet(PDF) 1 Page - Vishay Siliconix |
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ET30-502 Datasheet(HTML) 1 Page - Vishay Siliconix |
1 / 4 page Document Number: 13014 For technical questions, contact: esta@vishay.com www.vishay.com Revision: 11-Aug-10 1 DC Filter Capacitors ET Vishay ESTA 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. 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 TEMPERATURE RANGE Temperature range is - 55 °C to + 85 °C. Derating is required for operation at higher temperatures. 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 VDC to 70 000 VDC 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. Fig. 1 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 Fig. 2 DIELECTRIC RESISTANCE (Parallel resistance) is indicated by the graph of insulance (M Ω x μF) vs temperature fig. 3. The insulance (MÉ1 x μF) is nominally 10 000 s at + 20 °C. (Measurements taken after 1 minute with an applied voltage of 500 V) 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. Fig. 4 30 10 20 10 100 1000 Hz 0 10 000 2 % 0 % 1 % 80 - 20 0 40 65 1 kHz 50 Hz Power Factor vs. Temperature at 20 °C - 40 0 40 80 10 2 10 3 10 4 10 5 Insulance vs. Temperature Typical Values 50 100 150 °C 10 2 10 3 10 4 10 5 Rated Voltage |
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