The following cautions must
be observed when using electrolytic capacitors.
DC Electrolytic Capacitors have the polarity.
sure of the polarity, Application of the reversed voltage may
cause a short circuit or
damage to the capacitors when the polarity
is not determined or unknown. Note that DC
electrolytic capacitors cannot be for used
for AC application.
2. Capacitors are not
suitable operating with sudden charge
and discharge are frequently repeated.
the circuit subjected to rapid charge cycles, capacitors may be
damaged. Be sure
and use special capacitors in these applications.
3. Be sure not to apply
a voltage exceeding the rated voltage.
a voltage exceeding the rated voltage is applied the leakage current
which may damage the capacitor. For a short
period however the capacitor
withstands up to the surge voltage.
4. Be sure not to flow
excessive ripple current through the capacitor.
flow of ripple current over the permissible ripple current will
cause heat of the
capacitor, which may decrease the capacitance
and damage the capacitor. Use
capacitors designed for high ripple current
5. Capacitors should
be stored in cold and dry placed which have
been stored for a long period.
capacitors after long storage tends to have high leakage current
damage the capacitor by the excessive heat
because of high leakage current
flow. Use it after voltage treatment(aging).
6. Be sure of the temperature
The characteristics of capacitors change with the operating temperature.
is temporary and Restorable with in the
specified temperature range. Be sure not to
use capacitors below or over the recommended
7. Be sure not to apply
excessive force to the terminals and leads.
The excessive strong force applied to the terminals and lead wires
may break them
and loosen the connections of the internal
8. Capacitance decreases
at higher frequencies.
capacitance value is measured at 120Hz. The capacitance decreases
applied frequency becomes higher whereas increases
as the ambient temperature
9. Tangent of loss angle
increases at higher frequencies.
tangent of loss angle(tand ) increase
as the applied frequency becomes higher
whereas the ambient temperature becomes higher.
10. Be careful of temperature
and time when soldering.
Dipping must be
performed at the soldering temperature or less than 260º
less than 10 seconds otherwise
the capacitors may be damaged , and the sleeve
of the capacitors may deform and
crack from the extremely high temperature.
Be cautions of cleaning the circuit board after soldering.
protection for sleeve marking and sealing materials on capacitors
not be damaged, which should never
be washed or cleaned by halogens agents or
solvents such as trichloroethene,
Xyiene or acetone etc.
12. The specification of products are according to characteristic
established by JIS-C5141.