• Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Note
C03E.pdf
May.17,2013
Notice
Continued from the preceding page.
7. Coating
ꢍꢊ ! CRACK MAY BE CAUSED IN THE CAPACITOR DUE TO THE STRESS
of the thermal contraction of the resin during curing
process.
ꢅꢊ 3ELECT A RESIN THAT IS LESS HYGROSCOPICꢊ
Using hygroscopic resins under high humidity conditions
may cause the deterioration of the insulation resistance of
a capacitor.
The stress is affected by the amount of resin and curing
contraction.
An epoxy resin can be used as a less hygroscopic resin.
3ELECT A RESIN WITH LOW CURING CONTRACTIONꢊ
The difference in the thermal expansion coefficient
BETWEEN A COATING RESIN OR A MOLDING RESIN AND THE
capacitor may cause the destruction and deterioration of
THE CAPACITOR SUCH AS A CRACK OR PEELINGꢎ AND LEAD TO THE
deterioration of insulation resistance or dielectric
BREAKDOWNꢊ
3ELECT A RESIN FOR WHICH THE THERMAL EXPANSION COEFFICIENT
is as close to that of the capacitor as possible.
A silicone resin can be used as an under-coating to buffer
against the stress.
c Other
1. Transportation
ꢅꢊ #HARACTERISTICS %VALUATION IN THE !CTUAL 3YSTEM
ꢍꢊ %VALUATE THE CAPACITOR IN THE ACTUAL SYSTEMꢎ TO CONFIRM
THAT THERE IS NO PROBLEM WITH THE PERFORMANCE AND
specification values in a finished product before using.
ꢅꢊ 3INCE A VOLTAGE DEPENDENCY AND TEMPERATURE
dependency exists in the capacitance of high dielectric
type ceramic capacitors, the capacitance may change
depending on the operating conditions in the actual
system. Therefore, be sure to evaluate the various
CHARACTERISTICSꢎ SUCH AS THE LEAKAGE CURRENT AND NOISE
ABSORPTIVITYꢎ WHICH WILL AFFECT THE CAPACITANCE VALUE OF
the capacitor.
1. The performance of a capacitor may be affected by the
conditions during transportation.
1-1. The capacitors shall be protected against
excessive temperature, humidity, and mechanical
force during transportation.
(1) Climatic condition
s LOW AIR TEMPERATUREꢀ ꢁꢂꢃ #
s CHANGE OF TEMPERATURE AIRꢄAIRꢀ ꢁꢅꢆ #ꢄꢇꢅꢆ #
s LOW AIR PRESSUREꢀ ꢈꢃ K0A
s CHANGE OF AIR PRESSUREꢀ ꢉ K0AꢄMINꢊ
ꢋꢅꢌ -ECHANICAL CONDITION
4RANSPORTATION SHALL BE DONE IN SUCH A WAY THAT
the boxes are not deformed and forces are not
DIRECTLY PASSED ON TO THE INNER PACKAGINGꢊ
ꢍꢁꢅꢊ $O NOT APPLY EXCESSIVE VIBRATIONꢎ SHOCKꢎ OR
pressure to the capacitor.
ꢈꢊ )N ADDITIONꢎ VOLTAGES EXCEEDING THE PREDETERMINED
surge may be applied to the capacitor by the
INDUCTANCE IN THE ACTUAL SYSTEMꢊ %VALUATE THE SURGE
resistance in the actual system as required.
ꢋꢍꢌ 7HEN EXCESSIVE MECHANICAL SHOCK OR PRESSURE
IS APPLIED TO A CAPACITORꢎ CHIPPING OR CRACKING
may occur in the ceramic body of the capacitor.
ꢋꢅꢌ 7HEN THE SHARP EDGE OF AN AIR DRIVERꢎ A
SOLDERING IRONꢎ TWEEZERSꢎ A CHASSISꢎ ETCꢊ
impacts strongly on the surface of the capacitor,
THE CAPACITOR MAY CRACK AND SHORTꢁCIRCUITꢊ
ꢍꢁꢈꢊ $O NOT USE A CAPACITOR TO WHICH EXCESSIVE SHOCK
WAS APPLIED BY DROPPINGꢎ ETCꢊ
A capacitor dropped accidentally during
processing may be damaged.
60
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