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33

593D

Vishay Sprague

Document Number 40005

Revision 01-Mar-04

For technical questions, contact tantalum@vishay.com

7.1

At + 25

the value listed in the Standard Ratings Table.

7.2

At + 85

times the value listed in the Standard Ratings Table.

7.3

At + 125

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

PERFORMANCE CHARACTERISTICS (Continued)

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.