CERAMIC CAPACITORS
CK Series
Taping : dimensions
Radial Molded Capacitors
In accordance with
MIL C 11015 D
standards
CKR 05/06 : on request, High reliability types.
FEATURES
• Radial molded capacitors
• BX dielectric
• Capacitance range: 10pF to 1µF
• RoHS and Non RoHS compliant capacitors available
ELECTRICAL SPECIFICATIONS
Description
Operating temperature
Climatic category
Rated voltage (U
RC
)
BX
–55°C to +125°C
55 / 125 / 56
25V
DC
to 250V
DC
±15%
+15% –25%
2.5 U
RC
at 1MHz for C ≤ 100pF
at 1kHz for C > 100pF
≤2.5% at 1MHz for C ≤ 100pF
≤2.5% at 1kHz for C > 100pF
≥ 100,000 MΩ for C ≤ 10nF
≥ 1,000 MΩ.µF for C > 10nF
≤ 2.5% per decade hour
PHYSICAL CHARACTERISTICS
CONSTRUCTION
Leaded MLCC capacitors for through-hole mounting:
Epoxy molded capacitors
MARKING
Capacitance, tolerance, voltage, dielectric, date code.
Max. ΔC/°C over temperature range without DC voltage applied
Maximum ΔC/°C over temperature range with rated voltage applied
Dielectric withstanding voltage
Capacitance
Dissipation factor at 25°C
Insulation resistance at 25°C
Aging
DIMENSIONS in inches (mm)
STANDARD RATINGS
Size
L
05
0.189 ± 0.008
(4.8 ± 0.2)
0.189 ± 0.008
(4.8 ± 0.2)
0.091 ± 0.008
(2.3 ± 0.2)
0.2 ± 0.008
(5.08 ± 0.2)
0.024
(0.6)
10pF
820nF
220nF
120nF
47nF
12nF
6.8nF
06
0.291 ± 0.008
(7.4 ± 0.2)
0.291 ± 0.008
(7.4 ± 0.2)
0.091 ± 0.008
(2.3 ± 0.2)
0.2 ± 0.008
(5.08 ± 0.2)
0.024
(0.6)
330pF
1.5µF
1µF
470nF
180nF
39nF
27nF
Dimensions
inches (mm)
Rated voltage (U
RC
)
Available capacitance values:
BX: E6, E12, E24 (see page 14). Specific values upon request.
The above table defines the standard products, other components may be built upon
request.
W
T
X
Ø ± 10%
Min. Cap. value
25V
50V
63V
100V
200V
250V
HOW TO ORDER
CK
Series
CK
= Radial leaded,
molded capacitor
05
Size
05
06
W
RoHS compliant
-
= No RoHS
W
= RoHS
compliant
F
Quality level
-
= standard quality
level
F
= Hi-Rel quality:
screening in
accordance with
Exxelia specification
820nF
Capacitance
Capacitance value
in clear
10%
Tolerance
±10%
±20%
25V
Rated voltage
25V
50V
63V
100V
200V
250V
B
Packaging
-
= Exxelia packaging
-
Reliability level
Intermediary
and higher voltages
available on request
For F parts only.
Acc. to Exxelia spec.
Available for quantity
-
≥ 500:
T5
T6
B
= reel
See page 15
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CERAMIC CAPACITORS
General Information
Taping : dimensions NPO/COG (Class 1)
COMPOSITION
NPO capacitors are produced by using a dielectric made of titanium dioxide
(Ti O
2
) modified by magnesium oxide Mg O (white ceramics) or a rare earth
oxide, e.g. Nd
2
O
3
(other NPO ceramics).
As a consequence, these ceramics are non ferro-electric materials with a low
dielectric constant (
ε
r ≤ 110).
Other additives are used to dope the dielectric constant up to 300. Though der-
ogating from CG class, doped dielectric constant features a linear temperature
drift and a matchless stability compared with class 2 ceramics.
The wide range of possible NPO dielectric compositions enables to use the ma-
terial best suited to the application :
• standard applications,
• high voltage,
• high temperature,
• microwave,
• power capacitors.
«Temperature coefficient» compositions are particularly suitable for imped-
ance matching. These ceramics usually enable to achieve temperature coef-
ficients from 0 to –1 000 ppm/°C. For specific requirements, other coefficients
can be achieved (e.g. –3 300 ppm/°C).
TEMPERATURE COEFFICIENT
kV
+ 100
0
– 33
– 75
– 150
– 220
– 330
– 470
– 750
– 1 000
Temperature coefficient kV(ppm/°C)
Tolerances
Code letter
± 30
AG
± 30
CG
± 30
HG
± 30
LG
± 30
PG
± 30
RG
± 60
SH
± 60
TH
± 120
UJ
± 250
QK
STABILITY
As
ε
r is low, these dielectrics are extremely stable with only minor changes
under such stresses as :
• temperature,
• voltage,
• frequency.
In addition, they are not affected by piezo-electric phenomena and their dielec-
tric absorption coefficients are low and even non measurable for dielectrics
with the lowest constants.
MECHANICAL PROPERTIES
Class 1 ceramics are the perfect match for metallic electrodes made of Pd or
Ag-Pd alloy and have a high hardness and mechanical toughness making them
resistant to thermal shocks (wave soldering for instance) and to thermal cy-
cling after mounting on substrates having an expansion coefficient close to
the capacitor one.
Ceramic chips meet CECC 32100 and NF C 93133 standards.
CLIMATIC CATEGORIES
Climatic categories are identified by three-digit codes as per NF C 20700 stan-
dard. Coding method is described in table 6.
e.g. : – 55°C + 125°C / 56 days category is identified by code 434.
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CERAMIC CAPACITORS
General Information NPO/COG (Class 1)
General characteristics
IMPEDANCE VERSUS FREQUENCY
DISSIPATION FACTOR VERSUS FREQUENCY
10
4
1
0.5
10 pF
F
100 p
10
0n
F
10
nF
1n
F
Dissipation factor (%)
Impedance (m )
0.2
0.1
0.05
10
2
10
0.02
1
10
10
2
10
3
Frequency (kHz)
10
4
10
5
10
6
10
7
0.01
1
2
5
10
2
5
Frequency (kHz)
10
2
2
5
10
3
CAPACITANCE CHANGE VERSUS TEMPERATURE
0.5
0.4
0.3
0.2
Typical
Standard limits
IR VERSUS TEMPERATURE
10
4
5
Insulation resistance (G )
2
10
3
5
2
∆C/C (%)
0.1
0
10
2
–0.1
–0.2
–0.3
5
2
10
5
2
–0.4
–0.5
–55 –35 –15 5
25 45 65 85 105 125 145
1
-55 -40
0
20
85
125
155
Temperature (°C)
Temperature (°C)
DISSIPATION FACTOR VERSUS TEMPERATURE
TYPICAL FAILURE RATE VERSUS TEMPERATURE
0.05
10
–7
5
Dissipation factor (%)
0.04
2
10
–8
l
(failure/h)
5
0.03
1.5
2
–9
0.02
10
5
2
0.01
–55 –40
0
20
85
125
155
10
–10
1
0.9
0.8
0.7
0.6
0.5
20
40
60
80
100
125
Temperature (°C)
Temperature (°C)
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STANDARD
10
3
CERAMIC CAPACITORS
General Information
Taping : dimensions
X7R (Class 2)
COMPOSITION
Class 2 capacitors are produced by using a dielectric made of barium titanate
(Ba Ti O
3
). By nature, the dielectric is a ferroelectric compound with a high di-
electric constant usually varying :
• from 1 000 to 5 000 - typical of capacitors meeting 2C1 type specifica-
tions (BX, X7R),
• from 5 000 to 15 000 - typical of capacitors meeting Z5U or Y5V type
specifications.
Depending on whether the dielectric contains a flux additive, mainly bismuth
or boron, electrodes are made of Ag-Pd alloys with high silver content or high
palladium content, even pure palladium in some cases.
Stability category
Code letter
B
C
D
E
R
X
CAPACITANCE/TEMPERATURE RELATIONSHIP
Capacitance variations are defined within a specified temperature range, +
20°C being the reference temperature. This characteristic is expressed by as-
sociating the temperature range and capacitance stability.
Max. capacitance variation (%)
with reference to capacitance at 20°C
At rated DC voltage
Without voltage
(U
DC
)
± 10
+ 10– 15
± 20
+ 20 – 30
+ 20 – 55
+ 15 – 15
+ 15 – 15
+ 20 – 30
+ 20 – 40
+ 20 – 65
Not applicable
+ 15 – 25
STABILITY
As the dielectric is a ferro-electric material, class 2 capacitors present signifi-
cant variations under such stresses as :
• temperature,
• voltage,
• frequency.
In addition, the dielectric absorption coefficient can reach a few % and
piezo-electric phenomena can affect the dielectric at critical frequencies (full
information and specific documents available on request).
Temperature category
Code
1
2
4
Temperature range
– 55°C +125°C
– 55°C + 85°C
– 25°C + 85°C
MECHANICAL PROPERTIES
Class 2 dielectrics are hard materials and are sensitive to thermo-mechanical
stress. Stress should be limited when mounting and adequate substrates with
an adapted expansion coefficient used.
BISMUTH OR BISMUTH FREE DIELECTRICS
Class 2 capacitors are made of ceramics capable to embed a flux element (e.g.
bismuth or boron salt).Their eventual use will affect the choice of electrode
alloys firing temperature used. Capacitor behavior under such constraints as
temperature, voltage, frequency and even reliability, in some applications (fur-
ther information available on request), is also different.
That is why French and European standard authorities have decided to
differentiate bismuth from bismuth free ceramics by measuring tangent
d
at
–55°C. Tangent Tg
d
(–55°C) 350.10
–4
in flux free dielectrics.
Flux free dielectrics are identified by suffix «A» after capacitor type (e.g.
CNC2A).
CAPACITANCE CHANGE VERSUS FREQUENCY
5
0
∆C/C
(%)
–5
– 10
5
1
2
5
Frequency (kHz)
10
2
5
10
2
2
5
10
3
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CERAMIC CAPACITORS
General Information X7R (Class 2)
General characteristics
IMPEDANCE VERSUS FREQUENCY
DISSIPATION FACTOR VERSUS FREQUENCY
10
5
5
0n
10
F
10
4
0p
10
Dissipation factor (%)
Impedance (mΩ)
1
0.5
10
3
10
2
0.2
10
10
0.1
10
2
10
3
Frequency (kHz)
10
4
10
5
10
6
10
7
5
1
2
5
Frequency (kHz)
10
2
5
10
2
2
5
10
3
DISSIPATION FACTOR VERSUS TEMPERATURE
CAPACITANCE CHANGE VERSUS TEMPERATURE
Urc = 50V
5
2
1
0.5
0.2
0.1
0.05
–55 –40
0
20
85
125
155
-30
0
0V
DC
16V
DC
25V
DC
30V
DC
Dissipation factor (%)
∆
C/C (%)
-10
40V
DC
50V
DC
-20
Temperature (°C)
IR VERSUS TEMPERATURE
-55
-35
-15
Temperature (°C)
5
25
45
65
85 105 125
TYPICAL FAILURE RATE VERSUS TEMPERATURE
10
3
10
-6
5
5
2
Insulation resistance (G )
2
1.5
1
0.9
0.8
0.7
0.6
0.5
l
(failure/h)
10
2
10
-7
5
2
5
2
10
5
2
10
-8
5
2
1
-55 -40
10
-9
0
20
85
125
155
20
40
60
80
100
125
Temperature (°C)
Temperature (°C)
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STANDARD
10
nF
1n
F
F
2
F
1µ
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