CCR05Cxxx AVX Corporation, CCR05Cxxx Datasheet - Page 9

• Manufacturer Part Number: CCR05Cxxx
• Description: Multilayer Ceramic Leaded Capacitors
• Manufacturer: AVX Corporation

The Capacitor
100.0
10.00
10.0
0.10
0.01
1.00
10.0
1.0
Effect of Lead Length – Military CKR05 .01mF
0.1
1.0
0.1
Effect of Capacitance – AVX SpinGuards
1
1
1
Effect of Dielectric – AVX DIPGuards
Impedance vs. Frequency
Impedance vs. Frequency
Impedance vs. Frequency
.33mF
Log Frequency, MHz
10
Log Frequency, MHz
Log Frequency, MHz
10
10
.1mF
Figure 8
.01mF
100
100
100
.001mF
200
.500"
.250"
.062"
0"
1000
1000
7
Figure 9
Effects of Mechanical Stress – High “K” dielectric ceramic
capacitors exhibit some low level piezoelectric reactions
under mechanical stress. As a general statement, the
piezoelectric output is higher, the higher the dielectric con-
stant of the ceramic. It is desirable to investigate this effect
before using high “K” dielectrics as coupling capacitors in
extremely low level applications.
Reliability – Historically ceramic capacitors have been one
of the most reliable types of capacitors in use today.
The approximate formula for the reliability of a ceramic
capacitor is:
where
Historically for ceramic capacitors exponent X has been
considered as 3. The exponent Y for temperature effects
typically tends to run about 8.
L
V
V
L
o
o
t
t
= operating life
= test life
= test voltage
= operating voltage X,Y = see text
+1.5
-3.0
-4.5
-1.5
-6.0
-7.5
0
1
Characteristic
C0G (NP0)
X7R
Z5U
Y5V
Typical Curve of Aging Rate
L
L
10
o
t
=
X7R Dielectric
100
V
V
o
t
T
T
Max. Aging Rate %/Decade
o
t
Hours
= test temperature and
= operating temperature in °C
1000 10,000 100,000
X
T
T
None
o
t
2
3
5
Y