
POE-D11-00-E-06
CERAMIC DISC CAPACITOR SAFETY RECOGNIZED,
AC SERIES
Ver : 6 Page: 18 / 19
II. Voltage Applied Method
When the withstanding voltage is applied, capacitor’s lead or terminal shall be firmly
connected to the output of the withstanding voltage test equipment, and then the voltage shall
be raised from near zero to the test voltage.
If the test voltage without the raise from near zero voltage would be applied directly to
capacitor, test voltage should be applied with the *zero cross. At the end of the test time, the
test voltage shall be reduced to near zero, and then capacitor's lead or terminal shall be taken
off the output of the withstanding voltage test equipment.
If the test voltage without the raise from near zero voltage would be applied directly to
capacitor, the surge voltage may arise, and therefore, the defective may be caused.
ZERO CROSS is the point where voltage sine wave
pass 0V.- See the right figure.
(4). Fail-Safe
When capacitor would be broken, failure may result in a short circuit. Be sure to provide an
appropriate fail-safe function like a fuse on your product if failure would follow an electric shock,
fire or fume.
Failure to follow the above cautions may result, worst case, in a short circuit and cause fuming or
partial dispersion when the product is used.
9.2 Caution (Storage and operating condition):
Operating and storage environment
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. And 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 –10 to 40 degrees centigrade and 15 to 85 %. Use
capacitors within 6 months.
"Failure to follow the above cautions may result, worst case, in a short circuit and cause fuming or
partial dispersion when the product is used."
9.3 Caution (Soldering and Mounting):
9.3.1 Vibration and impact:
Do not expose a capacitor or its leads to excessive shock or vibration during use.