!Caution
1. The performance of chip multilayer ceramic capacitors
and chip EMIFIL NFM series (henceforth just “capacitors”)
may be aected by the storage conditions.
Please use them promptly aer delivery.
1-1. Maintain appropriate storage for the capacitors using
the following conditions: Room Temperature of +5 to
+40°C and a Relative Humidity of 20 to 70%.
High temperature and humidity conditions and/or
prolonged storage may cause deterioration of the
packaging materials. If more than six months have
elapsed since delivery, check packaging, mounting,
etc. before use.
In addition, this may cause oxidation of the electrodes.
If more than one year has elapsed since delivery, also
check the solderability before use.
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 humidity
conditions.
Storage and Operation Conditions
1. Temperature Dependent Characteristics
1. The electrical characteristics of a 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 Characteristics X5R (R6)]
Sample: 22μF, Rated Voltage 4VDC
[Example of Temperature Characteristics X7R (R7)]
Sample: 0.1μF, Rated Voltage 50VDC
-20
-15
-10
-5
0
5
10
15
20
Temperature (°C)
-75 -50 -25 0 25 50 75 100
Capacitance Change (%)
-20
-15
-10
-5
0
5
10
15
20
Temperature (°C)
-75 -50 -25 0 25 50 75 100 125 150
Capacitance Change (%)
2. Measurement of Capacitance
1. Measure capacitance with the voltage and frequency
specified in the product specifications.
1-1. The output voltage of the measuring equipment may
decrease occasionally when capacitance is high.
Please confirm whether a prescribed measured
voltage is impressed to the capacitor.
1-2. The capacitance values of high dielectric constant
type capacitors change depending on the AC voltage
applied. Please consider the AC voltage
characteristics when selecting a capacitor to be used
in an AC circuit.
Rating
Continued on the following page.
!Note • 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.
