!Caution
Continued on the following page.
The insulating coating of capacitors does not form a
perfect seal; therefore, do not use or store
capacitors in a corrosive atmosphere, especially
where chloride gas, sulfide gas, acid, alkali, salt
or the like are present. Also avoid exposure to
moisture. Before cleaning, bonding or molding this
product, verify that these processes do not affect
product quality by testing the performance of a
cleaned, bonded or molded product in the intended
equipment. Store the capacitors where the
temperature and relative humidity do not exceed 5
to 40 degrees centigrade and 20 to 70%.
Use capacitors within 6 months after delivery.
c Storage and Operation Conditions
c Rating
When DC-rated capacitors are to be used in AC or ripple
current circuits, be sure to maintain the Vp-p value of the
applied voltage or the V
0-p which contains DC bias within
the rated voltage range.
When the voltage is applied to the circuit, starting or
stopping may generate irregular voltage for a transit
period because of resonance or switching. Be sure to
use a capacitor with a rated voltage range that includes
these irregular voltages.
When DC-rated capacitors are to be used in input circuits
from commercial power source (AC filter), be sure to use
Safety Recognized Capacitors because various
regulations on withstand voltage or impulse withstand
established for all equipment should be taken into
consideration.
Voltage
Positional
Measurement
DC Voltage DC+AC Voltage AC Voltage Pulse Voltage (1) Pulse Voltage (2)
V0-p V0-p Vp-p Vp-p Vp-p
1. Operating Voltage
Keep the surface temperature of a capacitor below the
upper limit of its rated operating temperature range. Be
sure to take into account the heat generated by the
capacitor itself. When the capacitor is used in a
high-frequency current, pulse current or similar current, it
may have self-generated heat due to dielectric loss. In
the case of "High Dielectric Constant Type Capacitors,"
applied voltage load should be such that self-generated
heat is within 20 °C under the condition where the
capacitor is subjected at an atmosphere temperature of
25 °C. Please contact us if self-generated heat occurs
with "Temperature Compensating Type Capacitors".
When measuring, use a thermocouple of small thermal
capacity -K of ø0.1mm under conditions where the
capacitor is not affected by radiant heat from other
components or wind from surroundings. Excessive heat
may lead to deterioration of the capacitor's characteristics
and reliability. Never attempt to perform measurement
with the cooling fan running. Otherwise, accurate
measurement cannot be ensured.
2. Operating Temperature and Self-generated Heat
Be sure to provide an appropriate fail-safe function on
your product to prevent a second damage that may be
caused by the abnormal function or the failure of our
product.
3. Fail-Safe
