Charging characteristics
5.5V 1.0F
Self-discharging characteristics according to charging time
Charging condition: 5V
(Note) If charging time is brief, complete charge is not attained, and initial voltage due to internal charge is
increased.
Influence of ambient temperature on self-discharging characteristics
Charging condition: 5V, 24hours
(Note) In the self-discharge characteristics, the terminal voltage drop is affected by ambient temperature. This
means a self-discharge current becomes great as ambient temperature rises. In case where it is used with a
micro applied current of nano-ampere order, ambient temperature allows a difference to occur in backup time.
Discharging characteristics
Constant resistance discharge: 1MW
Charge voltage: 5V
Charge time: 24hours
Measurement temp: +20°C
Influence of ambient temperature on discharge characteristics
Constant resistance discharge: 250kW
Charge time: 24hours
(Note) Voltage drop gets a little faster as ambient temperature rise. This occurs because the rise in ambient
temperature causes a self-discharge current added to applied current.
(Note) In low temperature area, ion movement for the formation of electric double layers becomes slow, and
time required for complete charge takes longer. Consequently, The voltage drop is large in the condition with
low temperature when there is no difference at charging time..
Current characteristics
Initialization of test samples
The samples shall be measured after applying 5.5V for 2hours 300W resistance in the temperature (20±10°C,
65±10% not being wetted with dew) and discharging in short circuit for 12 to 24hours.
(n =20)
Relations between applied voltage and capacitance change
Test condition: +70°C 5.5V
Applied voltage: 4, 5, 5.5V
(Note) Capacitance changes at the life test vary from applied voltage. The lower the voltage is, the
smaller it becomes. Almost no capacitance change due to no-load shelving.
Relations between ambient temperature and capacitance change
Test condition: +70, +60, +55°C
Applied voltage: 5.5V