X8R Dielectric
General Specifications
AVX have developed a range of multilayer ceramic capacitors designed for use in applications up to
150ºC. These capacitors are manufactured with an X8R dielectric material which has a capacitance
variation of ±15% between -55ºC and +150ºC.
The need for X8R performance has been driven by customer requirements for parts that operate at
elevated temperatures. They provide a highly reliable capacitor with low loss and stable capacitance
over temperature.
They are ideal for automotive under the hood sensors, measure while drilling and log while drilling.
Typical applications include wire line logging tools such as gamma ray receivers, acoustic trans-
ceivers and micro-resistivity tools. They can also be used as bulk capacitors for high temperature
camera modules.
X8R capacitors are available as standard and Automotive AEC-Q200 qualified parts. Optional termi-
nation systems, tin, FLEXITERM
TM
and conductive epoxy for hybrid applications are available.
Providing this series with our FLEXITERM
TM
termination system provides further advantage to cus-
tomers by way of enhanced resistance to both, temperature cycling and mechanical damage.
PART NUMBER (see page 2 for complete part number explanation)
0805
Size
0603
0805
1206
5
Voltage
25V = 3
50V = 5
F
Dielectric
X8R = F
104
K
4
T
2
A
Special
Code
A = Std.
Product
Capacitance Capacitance
Failure
Terminations
Packaging
Tolerance
Code (In pF)
Rate
2 = 7" Reel
T = Plated Ni
J = ± 5%
4 = Automotive
4 = 13" Reel
2 Sig. Digits +
and Sn
K = ±10%
A = Not
TM
Number of
Z = FLEXITERM
M = ± 20%
Applicable U = Conductive
Zeros
e.g. 10µF = 106
Epoxy for
Hybrid apps
NOTE: Contact factory for availability of Termination and Tolerance Options for Specific Part Numbers.
SIZE
271
331
471
681
102
152
182
222
272
332
392
472
562
682
822
103
123
153
183
223
273
333
393
473
563
683
823
104
124
154
184
224
274
334
394
474
684
824
105
Cap
(pF)
WVDC
270
330
470
680
1000
1500
1800
2200
2700
3300
3900
4700
5600
6800
8200
0.01
0.012
0.015
0.018
0.022
0.027
0.033
0.039
0.047
0.056
0.068
0.082
0.1
0.12
0.15
0.18
0.22
0.27
0.33
0.39
0.47
0.68
0.82
1
WVDC
0603
25V
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
50V
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
25V
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
N
N
N
N
N
N
N
N
N
N
N
N
0805
50V
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
N
N
N
N
N
N
25V
1206
50V
Cap
(µF)
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
M
M
M
M
M
M
M
M
M
M
M
M
M
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
M
M
M
M
M
M
M
M
M
M
25V
50V
25V
50V
25V
50V
SIZE
Letter
Max.
Thickness
A
0.33
(0.013)
C
0.56
(0.022)
E
0.71
(0.028)
PAPER
G
0.86
(0.034)
0603
J
0.94
(0.037)
K
1.02
(0.040)
M
1.27
(0.050)
0805
N
1.40
(0.055)
P
Q
1.52
1.78
(0.060)
(0.070)
EMBOSSED
X
2.29
(0.090)
1206
Y
2.54
(0.100)
Z
2.79
(0.110)
12
= AEC-Q200 Qualified
= Under development (Contact
factory for advanced samples)
X8R Dielectric
General Specifications
APPLICATIONS FOR X8R CAPACITORS
•
•
•
•
All market sectors with a 150°C requirement
Automotive on engine applications
Oil exploration applications
Hybrid automotive applications
– Battery control
– Inverter / converter circuits
– Motor control applications
– Water pump
• Hybrid commercial applications
– Emergency circuits
– Sensors
– Temperature regulation
ADVANTAGES OF X8R MLC CAPACITORS
• Capacitance variation of ±15% between –55°C and
+150°C
• Qualified to the highest automotive AEC-Q200 standards
• Excellent reliability compared to other capacitor
technologies
• RoHS compliant
• Low ESR / ESL compared to other technologies
• Tin solder finish
• FLEXITERM
TM
available
• Hybrid available
• 50V range available
ENGINEERING TOOLS FOR HIGH VOLTAGE MLC CAPACITORS
•
•
•
•
Samples
Technical Articles
Application Engineering
Application Support
X8R Dielectric
0805, 50V, X8R Typical Temperature Coefficient
5.00
0.00
% Cap change
-5.00
-10.00
-15.00
-20.00
-25.00
-60
-40
-20
0
20
40
60
80
100
120
140
160
X7R included
for comparison
Temperature (°C)
13
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