• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
• Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
!Note
!Note
C02E.pdf
sales representatives or product engineers before ordering.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering0. 9.9.18
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!Caution
Continued from the preceding page.
(2) In case of C0G, U2J char.
Due to the low self-heating characteristics of low-
<C0G char., Rated Voltage: DC3.15kV>
dissipation capacitors, the allowable electric power of
these capacitors is generally much higher than that of
X7R characteristic capacitors.
The capacitors less than 22pF can be applied maximum
4.0kV peak to peak at 100kHz or less only for the ballast
or the resonance usage in the LCD backlight inverter
circuit.
When a high frequency voltage which cause 20°C self
heating to the capacitor is applied, it will exceed
capacitor's allowable electric power.
<Capacitor Selection Tool>
We are also offering free software the "capacitor
selection tool: Murata Medium Voltage Capacitors
Selection Tool by Voltage Form (*)" which will assist you
in selecting a suitable capacitor.
The frequency of the applied sine wave voltage should be
less than 500kHz (less than 100kHz in case of rated
voltage: DC3.15kV). The applied voltage should be less
than the value shown in figure below.
The software can be downloaded from Murata's Internet
Website.
While, in case of non-sine wave which include a
harmonic frequency, please contact our sales
representatives or product engineers. Excessive heat
may lead to deterioration of the capacitor's characteristics
and reliability. (Never attempt to perform measurement
with the cooling fan running. Otherwise, accurate
measurement cannot be ensured.)
(http://www.murata.com/designlib/mmcsv_e.html).
By inputting capacitance values and applied voltage
waveform of the specific capacitor series, this software
will calculate the capacitor's power consumption and list
suitable capacitors (non-sine wave is also available).
* Subject series are below.
· Temperature Characteristics C0G, U2J
The temperature of the surface
of capacitor: 125˚C or less (including self-heating)
C0G char., Rated Voltage: DC630V
C0G char., Rated Voltage: DC3.15kV
1000
(630)
10000
100 to 470pF
560pF
to 22pF
27 to 47pF
680pF
820pF
(3150)
1000
1000pF
100
1
10
100
1000
1
10
100
1000
Frequency [kHz]
Frequency [kHz]
U2J char., Rated Voltage: DC250V
U2J char., Rated Voltage: DC630V
U2J char., Rated Voltage: DC1kV
1000
1000
10000
to 680pF
1,000pF
2,200pF
(630)
to 470pF
to 4,700pF
10,000pF
1000
100
(250)
100
100
1
10
100 (500)1000
1
10
100 (500)1000
1
10
100 (500)1000
Frequency [kHz]
Frequency [kHz]
Frequency [kHz]
U2J char., Rated Voltage: DC2kV
U2J char., Rated Voltage: DC3.15kV
10000
10000
1000
100
to 100pF
150pF
220pF
18
to 33pF
(3150)
47pF
100pF
1000
1
10
100
1000
1
10
100 (500)1000
Frequency [kHz]
Frequency [kHz]
The sine-wave frequency VS allowable voltage
Continued on the following page.
208
MURATA [ muRata ]
