APPLICATION NOTES FOR MULTILAYER CERAMIC CAPACITORS
© KEMET Electronics Corporation, P.O. Box 5928, Greenville, S.C. 29606, (864) 963-630046
IMPEDANCE VS FREQUENCY
Impedance (Ohms)
1 10 100 1,000
0.001
0.01
1
10
100
0.1
0.1
Frequency - MHz
Impedance vs Frequency for C0G Dielectric
Figure 10.
EFFECT OF FREQUENCY
-0.1
0
+0.2
-0.2
+0.1
0.10
0.20
0.0
Frequency - Hertz
Capacitance & DF vs Frequency - C0G
Figure 8.
%DF
Typical Aging Rates for X7R & Z5UFigure 13.
74%
76%
78%
80%
82%
84%
86%
88%
90%
92%
94%
96%
98%
100%
Capacitance
1 10 100 1000 10K 100K
EFFECT OF TIME
%DF
-10
-5
+5
-15
0
5.0
10.0
0.0
2.5
7.5
Frequency - Hertz
Capacitance & DF vs Frequency - X7R & Z5U
Figure 9.
.01µF
.001µF
%6C
100 1K 10K 100K 1M 10M
100 1K 10K 100K 1M 10M
%6C
%6C
%DF
Z5U
X7R
%DF
%6C
Impedance (Ohms)
1 10 100 1,000
0.001
0.01
1
10
100
0.1
0.1
Frequency - MHz
Impedance vs Frequency for Z5U Dielectric
Figure 12.
Impedance (Ohms)
1 10 100 1,000
0.001
0.01
1
10
100
0.1
0.1
Frequency - MHz
Impedance vs Frequency for X7R Dielectric
Figure 11.
0.1µF
1.0 µF
0.1µF
.01µF
1.0 µF
Impedance vs. Frequency
Leaded Ceramic C0G
0.01
0.1
1
10
100
0.1 1 1 0 100 1000
Frequency - MHz
Impedance (Ohms)
0.01µF
0.001µF
Leaded X7R
0.01
0.1
1
10
100
0.1 1 1 0 100 1000
Frequency - MHz
Impedance (Ohms)
0.01µF
0.1µF
Impedance vs. Frequency
1.0µF
Impedance vs. Frequency
Leaded Z5U
0.01
0.1
1
10
100
0.1 1 1 0 100 1000
Frequency - MHz
Impedance (Ohms)
0.1µF
1.0µF
Impedance vs Frequency
for C0G Dielectric
Figure 10.
Impedance vs Frequency
for X7R Dielectric
Figure 11.
Impedance vs Frequency
for Z5U Dielectric
Figure 12.
apac
ance
100%
74%
76%
78%
80%
82%
84%
86%
88%
90%
92%
94%
96%
98%
X7R
Z5U
1 10 100 1000 10K 100K
