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594D156X-035D2T Datasheet(PDF) 5 Page - Vishay Siliconix |
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594D156X-035D2T Datasheet(HTML) 5 Page - Vishay Siliconix |
5 / 9 page www.vishay.com 70 594D Vishay Sprague Document Number 40006 Revision 09-Mar-05 For technical questions, contact tantalum@vishay.com 7.1 At + 25 °C, the leakage current shall not exceed the value listed in the Standard Ratings Table. 7.2 At + 85 °C, the leakage current shall not exceed 10 times the value listed in the Standard Ratings Table. 7.3 At + 125 °C, the leakage current shall not exceed 12 times the value listed in the Standard Ratings Table. 1. Operating Temperature: Capacitors are designed to operate over the temperature range of - 55°C to + 85°C. 1.1 Capacitors may be operated to + 125°C with voltage derating to two-thirds the + 85°C rating. 2. DC Working Voltage: The DC working voltage is the maximum operating voltage for continuous duty at the rated temperature. 3. Surge Voltage: The surge DC rating is the maximum voltage to which the capacitors may be subjected under any conditions, including transients and peak ripple at the highest line voltage. 3.1 Surge Voltage Test: Capacitors shall withstand the surge voltage applied in series with a 33 ohm ± 5% resistor at the rate of one-half minute on, one-half minute off, at + 85°C, for 1000 successive test cycles. 3.2 Following the surge voltage test, the dissipation factor and the leakage current shall meet the initial requirements; the capacitance shall not have changed more than ± 10%. 4. Capacitance Tolerance: The capacitance of all capacitors shall be within the specified tolerance limits of the normal rating. 4.1 Capacitance measurements shall be made by means of polarized capacitance bridge. The polarizing volt age shall be of such magnitude that there shall be no reversal of polarity due to the AC component. The maximum voltage applied to capacitors during measurement shall be 2 volts rms at 120 Hz at +25°C. If the AC voltage applied is less than one-half volt rms, no DC bias is required. Accuracy of the bridge shall be within ± 2%. 5. Capacitance Change With Temperature: The capacitance change with temperature shall not exceed the following percentage of the capacitance measured at + 25°C: - 55°C - 10% + 85°C + 10% + 125°C + 12% 6. Dissipation Factor: The dissipation factor, deter- mined from the expression 2πfRC, shall not exceed values listed in the Standard Ratings Table. 6.1 Measurements shall be made by the bridge method at, or referred to, a frequency of 120 Hz and a temperature of + 25°C. 7. Leakage Current: Capacitors shall be stabilized at the rated temperature for 30 minutes. Rated voltage shall be applied to capacitors for 5 minutes using a steady source of power (such as a regulated power supply) with 1000 ohm resistor connected in series with the capacitor under test to limit the charging current. Leakage current shall then be measured. Note that the leakage current varies with applied volt age. See graph below for the appropriate adjustment factor. TYPICAL LEAKAGE CURRENT FACTOR RANGE + 85 °C Rating + 125 °C Rating Working Voltage (V) Working Voltage (V) Surge Voltage (V) Surge Voltage (V) 4.0 6.3 10 16 20 25 35 50 5.2 8 13 20 26 32 46 65 2.7 4 7 10 13 17 23 33 3.4 5 8 12 16 20 28 38 PERFORMANCE CHARACTERISTICS 100 10 1.0 0.1 0.01 0.001 0 10 20 30 40 50 60 70 80 90 100 + 125 °C + 85 °C + 55 °C + 25 °C 0 °C - 55 °C Percent of Rated Voltage |
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