593D Datasheet, PDF (7/11 Pages) Vishay Siliconix – Solid Tantalum Chip Capacitors Tantamount Commercial, Surface Mount for Switch Mode Power Supplies and Converters

593D
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
12 times the value listed in the Standard Ratings
Table.
8. ESR
8.1 ESR (Equivalent Series Resistance) shall not
exceed the values listed in the Ratings Table.
Measurement shall be made by the bridge method
at a frequency of 100kHz and a temperature of +25°C.
9. Life Test: Capacitors shall withstand rated DC
voltage applied at + 85°C or two-thirds rated voltage
applied at + 125°C for 2000 hours.
9.1 Following the life test, the dissipation factor shall
meet the initial requirement; the capacitance change
shall not exceed ± 10%; the leakage current shall not
exceed 125% of the initial requirement.
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 simple harmonic motion having an amplitude of
0.03" [0.76mm] and a maximum total excursion of
0.06" [1.52mm], in a direction perpendicular to the
major axis of the capacitors.
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
1.5 hours.
10.2.2 An 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 capacitance,
dissipation factor and leakage current.
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 minutes.
10.3.2 The vibration shall be applied for 4 hours 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 An oscilloscope or other comparable means shall be
used in determining electrical intermittency during the
last cycle. The AC voltage applied shall not exceed 2
volts rms.
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 seconds in
each of 2 mutually perpendicular planes.
11.2.1 The direction of motion shall be parallel to and per-
pendicular to the longitudinal axis of the capacitors.
11.3 Rated DC voltage shall be applied during acceleration
test.
11.3.1 An oscilloscope or other comparable means shall be
used in determining electrical intermittency during test.
The AC voltage applied shall not exceed 2 volts rms.
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 mechancial 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.
Document Number 40005
Revision 01-Mar-04
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