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(9. Caution, continued)
No. Process Condition
9 Handling of loose
chip capacitors
1. The chip capacitor may crack if dropped, especially large case sizes. Please
handle with care and do not use if dropped.
2. When stacking the P.C. board for storage or handling after soldering, the corner of
the P.C. board may hit the chip capacitor of a neighboring board to cause a crack.
10 Capacitance aging
Class 2 capacitors have an aging characteristic, which is a decrease in capacitance
over time due to crystalline changes that occur I ferroelectric ceramics. Careful
consideration should be done in case of the time constant circuit.
11 Estimated life and
estimated failure
rate of capacitors
The estimated life and (failure rate) depend on the temperature and voltage applied.
This can be calculated by the equation described in JEITA RCR-2335B Annex
6 ”Calculation of the estimated lifetime and the failure rate.” The risk can be
decreased by reducing the temperature and the voltage but the failure rate can not be
guaranteed.
12 Others
The products listed on this specification sheet are intended for use in general
electronic equipment (AV equipment, telecommunications equipment, home
appliances, amusement equipment, computer equipment, personal equipment, office
equipment, measurement equipment, industrial robots) under a normal operation and
use condition.
The products are not designed or warranted to meet the requirements of the
applications listed below, whose performance and/or quality require a more stringent
level of safety or reliability, or whose failure, malfunction or trouble could cause
serious damage to society, person or property. Please understand that TDK is not
responsible for any damage or liability caused by use of this product in any of the
applications below or for any other use exceeding the range or conditions set forth in
this specification sheet:
Aerospace/Aviation equipment. Transportation equipment (cars, electric trains, ships,
etc.) Medical equipment. Power-generation control equipment. Atomic energy-related
equipment. Seabed equipment. Transportation control equipment.
Public information-processing equipment. Military equipment. Electric heating
apparatus, burning equipment. Disaster prevention/crime prevention equipment.
Safety equipment. Other applications that are not considered general-purpose
applications.
When using this product in general-purpose applications, you are kindly requested to
take into consideration securing protection circuit/equipment or providing backup
circuits, etc., to ensure higher safety.
Crack
Floor
P. C . B o a r d
Crack