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550D825X0050R2 Datasheet(PDF) 6 Page - Vishay Siliconix |
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550D825X0050R2 Datasheet(HTML) 6 Page - Vishay Siliconix |
6 / 9 page Document Number: 40017 For technical questions, contact: aluminumcaps4@vishay.com www.vishay.com Revision: 28-Aug-08 6 550D Solid-Electrolyte TANTALEX® Capacitors for High Frequency Power Supplies Vishay Sprague PERFORMANCE CHARACTERISTICS (Continued) 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 15 times the value listed in the Standard Ratings Table. 8. Life Test: Capacitors shall withstand rated DC voltage applied at + 85 °C for 2000 h or rated DC voltage applied at + 125 °C for 1000 h. 8.1 Following the life test, the dissipation factor shall meet the initial requirement; the capacitance change shall not exceed ± 2 %; the leakage current shall not exceed 125 % of the original requirement. 9. Shelf Test: Capacitors shall withstand a shelf test for 5000 h at a temperature of + 85 °C, with no voltage applied. 9.1 Following the shelf test, the leakage current shall meet the initial requirement; the dissipation factor shall not exceed 150 % of the initial requirement; the capacitance change shall not exceed ± 5 %. 10 Vibration Tests: Capacitors shall be subjected to vibration tests in accordance with the following criteria. 10.1 Capacitors shall be secured for test by means of a rigid mounting using suitable brackets. 10.2 Low Frequency Vibration: Vibration shall consist of a simple harmonic motion having an amplitude of 0.03" (0.76) and a maximum total excursion of 0.06" (1.52), in a direction perpendicular to the major axis of the capacitor. 10.2.1 Vibration frequency shall be varied uniformly between the approximate limits of 10 Hz to 55 Hz during a period of approximately one minute, continuously for 1 and 1.5 h. 10.2.2 A cathode ray oscilloscope or other comparable means shall be used in determining electrical intermittency during the final 30 minutes of the test. The AC voltage applied shall not exceed 2 volts rms. 10.2.3 Electrical tests shall show no evidence of intermittent contacts, open circuits or short circuits during these tests. 10.2.4 Following the low frequency vibration test, capacitors shall meet the original requirements for leakage current and dissipation factor; capacitance change shall not exceed ± 5 % of the original measured value. 10.3 High Frequency Vibration: Vibration shall consist of a simple harmonic motion having an amplitude of 0.06" (1.52) ± 10 % maximum total excursion or 20 g peak, whichever is less. 10.3.1 Vibration Frequency shall be varied logarithmically from 50 Hz to 2000 Hz and return to 50 Hz during a cycle period of 20 min. 10.3.2 The vibration shall be applied for 4 h in each of 2 directions, parallel and perpendicular to the major axis of the capacitors. 10.3.3 Rated DC voltage shall be applied during the vibration cycling. 10.3.4 A cathode ray oscilloscope or other comparable means shall be used in determining electrical intermittency during test. The AC voltage applied shall not exceed 2 Vrms. 10.3.5 Electrical tests shall show no evidence of intermittent contacts, open circuits or short circuits during these tests. 10.3.6 There shall be no mechanical damage to these capacitors as a result of these tests. 10.3.7 Following the high frequency vibration test, capacitors shall meet the original limits for capacitance, dissipation factor and leakage current. 11. Acceleration Test: 11.1 Capacitors shall be rigidly mounted by means of suitable brackets. 11.2 Capacitors shall be subjected to a constant acceleration of 100 g for a period of 10 s in each of 2 mutually perpendicular planes. 11.2.1 The direction of motion shall be parallel to and perpendicular to the cylindrical axis of the capacitors. 11.3 Rated DC voltage shall be applied during acceleration test. 11.3.1 A cathode ray oscilloscope or other comparable means shall be used in determining electrical intermittency during test. The AC voltage applied shall not exceed 2 Vrms. 11.4 Electrical tests shall show no evidence of intermittent contacts, open circuits or short circuits during these tests. 11.5 There shall be no mechanical damage to these capacitors as a result of these tests. 11.6 Following the acceleration test, capacitors shall meet the original limits for capacitance, dissipation factor and leakage current. 12. Shock Test: 12.1 Capacitors shall be rigidly mounted by means of suitable brackets. The test load shall be distributed uniformly on the test platform to minimize the effects of unbalanced loads. |
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