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High Effective Capacitance & High Allowable Ripple Current
C02E.pdf
Sep.25,2013
GR3 Series
Anti-
noise
This is a general purpose high ripple resistance product excellent
in DC bias characteristics.
Features
1
When a DC bias is applied, a capacitance
higher than conventional products
(X7R characteristics) can be acquired.
About twice the capacitance can be secured
when DC200V is applied.
2
Improved ripple resistance performance
compared to conventional products
(X7R characteristics).
In the case of a product with a capacitance of 1μF,
when the exothermic temperature reaches 20°C at
frequency f=300kHz, the amount of resistance of a
product with conventional material is 2.9Ar.m.s.;
however, the new material is 4.7Ar.m.s..
20
New Material GR3 (1μF/250V)
100
30kHz
0
Conventional Material GRM (1μF/250V)
100kHz
2.9Ar.m.s.
4.7Ar.m.s.
30kHz
-20
300kHz
20°C
-40
-60
-80
10
100kHz
300kHz
New Material GR3
Conventional Material GRM
-100
0
50
100 150
200
250
1
0
1
2
3
4
5
6
7
DC Bias (V)
<Comparison between Capacitance - DC Bias Characteristics>
Current (Ar.m.s.)
<Comparison of Ripple Heat Generation Characteristics>
3
This product has a noise reduction effect.
Since dielectric materials which enable a reduction of noise are used, this product is more effective for reducing
noise compared to the general purpose GRM series.
90
80
70
60
50
40
30
New Material GR3
Conventional Material GRM
20
3216(1206)
630V/0.01μF
3225(1210)
630V/0.047μF
4532(1812)
250V/0.33μF
5750(2220)
250V/0.33μF
in mm(inch)
Specifications
Size
2.0×1.25mm to 5.7×5.0mm
e
g
e
Rated Voltage
DC250V to 630V
T
Capacitance
0.01μF to 1.0μF
L
W
Main Applications
For PFC (Power Factor Correction) Circuits of Power Supplies,
EMI Suppression and Smoothing Circuits
<Dimensions>
This catalog contains only a portion of the product lineup.
Please refer to the capacitor search tool on the Murata Web site for details.
121
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