ITT - Index of

TYPE TAP
PLASTIC ENCAPSULATED
TANTALUM CAPACITORS MINIATURE
TYPE SOLID-ELECTROLYTE
Definitions and Ratings
RATED CAPACITANCE -
60 cycles and +25°C.
Value measured at
CAPACITANCE TOLERANCE - Variation of
actual value from nominal rated value in per
cent (%).
RATED DC VOLTAGE - Listed rating in volts
DC at a surface temperature of +40°C.
CONTINUOUS MAXIMUM VOLTAGE-Highest
DC voltage which can be applied to capacitor.
Max voltage equals rated voltage up to +85°C
ambient temperature.
SURGE VOLTAGE-Maximum voltage to which
capacitor may be subjected 5 times per hour
for one minute. Maximum value is 1.15 times
the rated voltage. Capacitors should not be
used in electrical circuits where the capacitor
is regularly charged and discharged to the
peak of the surge voltage.
REVERSE VOLTAGE-Not to exceed 0.5 Reverse
voltage higher than this limit can be
handled by connecting 2 capacitors in antiseries
(bipolar capacitor). Resulting capacitors
will be of same voltage, but half capacity of
single unit.
AC RIPPLE VOLTAGE-Sum of superimposed
peak AC voltage and DC voltage must not exceed
rated voltage. See figures 3, 6 and 9.
LEAKAGE CURRENT --'- Current measured
through a 1,000n resistor with rated voltage
applied for 3 minutes at +25°C. This current
does not exceed 0.02 times capacitance (,u.F)
times rated voltage (volts), or 1 JJ.A, whichever
is greater. At +85°C, typical leakage current
is less than 10 times the value at +25°C. See
figure 4.
IMPEDANCE-Measured at 10KHz and 25°C.
See figure 8.
DISSIPATION FACTOR-(tangent of loss angle:,
tant~) defined by tan {l =2'lTfRC, is measured at
a frequency of 120 Hz, at room temperature,
25°C.
Variation of tan,'j with temperature is shown
in figure 10.
Protective Circuit Resistance
The failure rate of TAP capacitors will be
70.=1 x 10-0 h-l
at 3 Ohm/voltage circuit resistance
65°C arid rated voltage
Any lower resistance will increase the failure
rate.
This can be compensated by voltage derating.
See figures 12, 13, and 14.
CHARACTERISTIC CURVES
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TEMPERATURE--C - FREQUENCY - KHz --
Figure 1 Figure 2 Figure 3
16- 8