■Limitation of Applications
Please contact us before using our products for the applications listed below which require especially high reliability
for the prevention of defects which might directly cause damage to the third party's life, body or property.
①Aircraft equipment ②Aerospace equipment ③Undersea equipment ④Power plant control equipment
⑤Medical equipment ⑥Transportation equipment(vehicles,trains,ships,etc.) ⑦Traffic signal equipment
⑧Disaster prevention / crime prevention equipment ⑨Data-processing equipment
⑩Application of similar complexity and/or reliability requirements to the applications listed in the above.
■Storage and Operation condition
1. The performance of chip multilayer ceramic capacitors may be affected by the storage conditions.
1-1. Store the capacitors in the following conditions:
Room Temperature of +5℃to +40℃and a Relative Humidity of 20% to 70%.
(1) High temperature and humidity conditions may accelerate the deterioration of solderability due to oxidation
of the terminal electrodes and deterioration of taping/packaging performance.
Therefore, maintain the appropriate storage temperature and humidity.
(2) Prolonged storage may cause oxidation of the electrodes and deterioration of the packaging materials.
If more than six months have elapsed since delivery, check the mounting before use.
If more than one year has elapsed since delivery, also check the solderability before use.
Even if the storage period is short, do not exceed the specified atmospheric conditions.
(3) Store the capacitors in the original packaging without opening the smallest packing unit.
Do not exceed the above atmospheric conditions for any length of time.
1-2. Corrosive gas can react with the termination (external) electrodes or lead wires of capacitors, and result
in poor solderability. Do not store the capacitors in an atmosphere consisting of corrosive gas (e.g.,hydrogen
sulfide, sulfur dioxide, chlorine, ammonia gas etc.).
1-3. Due to moisture condensation caused by rapid humidity changes, or the photochemical change caused
by direct sunlight on the terminal electrodes and/or the resin/epoxy coatings, the solderability and
electrical performance may deteriorate. Do not store capacitors under direct sunlight or in high huimidity
conditions
1.Temperature Dependent Characteristics
1. The electrical characteristics of the capacitor can change with temperature.
1-1. For capacitors having larger temperature dependency, the capacitance may change with temperature
changes. The following actions are recommended in order to ensure suitable capacitance values.
(1) Select a suitable capacitance for the operating temperature range.
(2) The capacitance may change within the rated temperature.
When you use a high dielectric constant type capacitor in a circuit that needs a tight (narrow) capacitance
tolerance (e.g., a time-constant circuit), please carefully consider the temperature characteristics, and
carefully confirm the various characteristics in actual use conditions and the actual system.
[Example of Temperature Caracteristics X7R(R7)] [Example of Temperature Characteristics X5R(R6)]
-20
-10
-15
-5
5
0
10
15
20
Temperature (C)
-75 -50 -25 025 50 75 100 125 150
Capacitance Change(%)
-20
-10
-15
-5
5
0
10
15
20
Temperature (C)
-75 -50 -25 025 50 75 100
Capacitance Change(%)
