GRM0332C2A6R9DA01 datasheet(66/89 Pages) MURATA1

66 / 89 page

C02E.pdf

Nov.27,2017

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.

267

Caution

3. Applied Voltage and Applied Current

1. Do not apply a voltage to the capacitor that exceeds the

rated voltage as called out in the speciﬁcations.

1-1. Applied voltage between the terminals of a capacitor

shall be less than or equal to the rated voltage.

(1) When AC voltage is superimposed on DC voltage,

the zero-to-peak voltage shall not exceed the

rated DC voltage.

When AC voltage or pulse voltage is applied, the

peak-to-peak voltage shall not exceed the rated

DC voltage.

(2) Abnormal voltages (surge voltage, static

electricity, pulse voltage, etc.) shall not exceed

the rated DC voltage.

1-2. Inﬂuence of over voltage

Over voltage that is applied to the capacitor may

result in an electrical short circuit caused by the

breakdown of the internal dielectric layers.

The time duration until breakdown depends on the

applied voltage and the ambient temperature.

2. Use a safety standard certiﬁed capacitor in a power

supply input circuit (AC ﬁlter), as it is also necessary to

consider the withstand voltage and impulse withstand

voltage deﬁned for each device.

3. The capacitors also have rated currents.

The current ﬂowing between the terminals of a capacitor

shall be less than or equal to the rated current. Using the

capacitor beyond this range could lead to excessive heat.

Typical Voltage Applied to the DC Capacitor

(E: Maximum possible applied voltage.)

DC Voltage

DC Voltage+AC

AC Voltage

Pulse Voltage

4. Type of Applied Voltage and Self-heating Temperature

1. Conﬁrm the operating conditions to make sure that no large

current is ﬂowing into the capacitor due to the continuous

application of an AC voltage or pulse voltage.

When a DC rated voltage product is used in an AC voltage

circuit or a pulse voltage circuit, the AC current or pulse

current will ﬂow into the capacitor; therefore check the

self-heating condition.

Please conﬁrm the surface temperature of the capacitor so

that the temperature remains within the upper limits of the

operating temperature, including the rise in temperature due

to self-heating. When the capacitor is used with a

high-frequency voltage or pulse voltage, heat may be

generated by dielectric loss.

1-1. The load should be contained so that the self-heating of

the capacitor body remains below 20°C, when

measuring at an ambient temperature of 25°C.

100

Current (Ar.m.s.)

[Example of Temperature Rise (Heat Generation)

in Chip Multilayer Ceramic Capacitors in Contrast

to Ripple Current]

Sample: R (R1) characteristics 10µF,

Rated voltage: DC10V

Ripple Current

100kHz

500kHz

1MHz

Continued from the preceding page.

Continued on the following page.

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