Multilayer ceramic capacitors are available in a
variety of physical sizes and configurations, including
leaded devices and surface mounted chips. Leaded
styles include molded and conformally coated parts
with axial and radial leads. However, the basic
capacitor element is similar for all styles. It is called a
chip and consists of formulated dielectric materials
which have been cast into thin layers, interspersed
with metal electrodes alternately exposed on opposite
edges of the laminated structure.
The entire structure is
fired at high temperature to produce a monolithic
block
which provides high capacitance values in a
small physical volume. After firing, conductive
terminations are applied to opposite ends of the chip to
make contact with the exposed electrodes.
Termination materials and methods vary depending on
the intended use.
TEMPERATURE CHARACTERISTICS
Ceramic dielectric materials can be formulated with
a wide range of characteristics. The EIA standard for
ceramic dielectric capacitors (RS-198) divides ceramic
dielectrics into the following classes:
Class I: Temperature compensating capacitors,
suitable for resonant circuit application or other applications where high Q and stability of capacitance characteristics are required. Class I capacitors have
predictable temperature coefficients and are not
effected by voltage, frequency or time. They are made
from materials which are not ferro-electric, yielding
superior stability but low volumetric efficiency. Class I
capacitors are the most stable type available, but have
the lowest volumetric efficiency.
Class II: Stable capacitors, suitable for bypass
or coupling applications or frequency discriminating
circuits where Q and stability of capacitance characteristics are not of major importance. Class II
capacitors have temperature characteristics of ± 15%
or less. They are made from materials which are
ferro-electric, yielding higher volumetric efficiency but
less stability. Class II capacitors are affected by
temperature, voltage, frequency and time.
Class III: General purpose capacitors, suitable
for by-pass coupling or other applications in which
dielectric losses, high insulation resistance and
stability of capacitance characteristics are of little or
no importance. Class III capacitors are similar to Class
II capacitors except for temperature characteristics,
which are greater than ± 15%. Class III capacitors
have the highest vol
umetric efficiency and poorest
stability of any type.
KEMET leaded ceramic capacitors are offered in
the three most popular temperature characteristics:
C0G: Class I, with a temperature coefficient of 0 ±
30 ppm per degree C over an operating
temperature range of - 55°C to + 125°C (Also
known as “NP0”).
X7R: Class II, with a maximum capacitance
change of ± 15% over an operating temperature
range of - 55°C to + 125°C.
Z5U: Class III, with a maximum capacitance
change of + 22% - 56% over an operating tem-
perature range of + 10°C to + 85°C.
Specified electrical limits for these three temperature
characteristics are shown in Table 1.
SPECIFIED ELECTRICAL LIMITS
TEMPERATURE CHARACTERISTICS
PARAMETERC0GX7RZ5U
Dissipation Factor: Measured at following conditions:
C0G — 1 kHz and 1 vrms if capacitance > 1000 pF
1 MHz and 1 vrms if capacitance ≤ 1000 pF0.15%2.5%4.0%
X7R — 1 kHz and 1 vrms* or if extended cap range 0.5 vrms
Z5U — 1 kHz and 0.5 vrms
Dielectric Strength: 2.5 times rated DC voltage.Pass Subsequent IR Test
Insulation Resistance (IR): At rated DC voltage,1,000 MΩ-µF1,000 MΩ-µF1,000 MΩ-µF
whichever of the two is smalleror 100 GΩor 100 GΩor 10 GΩ
Temperature Characteristics: Range, °C-55 to +125-55 to +125+10 to +85
Capacitance Change without0 ± 30 ppm/°C±15%+22%, -56%
DC voltage
* 1 MHz and 1 vrms if capacitance ≤ 100 pF on military product.
Table I
Multlayer Ceramic
Capacitors
Page 2
CERAMIC CONFORMALLY COATED/AXIAL & RADIAL
PERFORMANCE CHARACTERISTICS FOR STANDARD AND HIGH VOLTAGE
EIA RS-198, Method 304, Condition D (10-2000Hz; 20g)
Shock:
EIA RS-198, Method 305, Condition I (100g)
Life Test:
EIA RS-198, Method 201, Condition D.
££
200V
C0G – 200% of rated voltage @ +125°C
X7R – 200% of rated voltage @ +125°C
Z5U – 200% of rated voltage @ +85°C
³³
500V
C0G – rated voltage @ +125°C
X7R – rated voltage @ +125°C
Post Test Limits @ 25°C are:
Capacitance Change:
C0G (£ 200V) – +3% or 0.25pF, whichever is greater.
C0G (³ 500V) – +3% or 0.50pF, whichever is greater.
X7R – + 20% of initial value (2)
Z5U – + 30% of initial value (2)
Dissipation Factor:
C0G – 0.15% maximum
X7R – 2.5% maximum
Z5U – 4.0% maximum
Insulation Resistance:
C0G – 10k Megohm or 100 Megohm x µF, whichever is less.
³1kV tested @ 500V.
X7R – 10k Megohm or 100 Megohm x µF, whichever is less.
³1kV tested @ 500V.
Z5U – 1k Megohm or 100 Megohm x µF, whichever is less.
ELECTRICAL
Capacitance @ 25°C:
Within specified tolerance and following test conditions.
C0G – > 1000pF with 1.0 vrms @ 1 kHz
£ 1000pF with 1.0 vrms @ 1 MHz
X7R – with 1.0 vrms @ 1 kHz
Z5U – with 1.0 vrms @ 1 kHz
Dissipation Factor @ 25°C:
Same test conditions as capacitance.
C0G – 0.15% maximum
X7R – 2.5% maximum
Z5U – 4.0% maximum
Insulation Resistance @ 25°C:
EIA RS-198, Method 104, Condition A <1kV
C0G – 100k Megohm or 1000 Megohm x µF, whichever is less.
£500V test @ rated voltage, ³1kV test @ 500V
X7R – 100k Megohm or 1000 Megohm x µF, whichever is less.
£500V test @ rated voltage, ³1kV test @ 500V
Z5U – 10k Megohm or 1000 Megohm x µF, whichever is less.
Dielectric Withstanding Voltage:
EIA RS-198, Method 103
£200V test @ 250% of rated voltage for 5 seconds with current
limited to 50mA.
500V test @ 150% of rated voltage for 5 seconds with current
limited to 50mA.
³1000V test @ 120% of rated voltage for 5 seconds with current
limited to 50mA.
Moisture Resistance:
EIA RS-198, Method 204, Condition A (10 cycles without
applied voltage.)
Post Test Limits @ 25°C are:
Capacitance Change:
C0G (£ 200V) – +3% or 0.25pF, whichever is greater.
C0G (³ 500V) – +3% or 0.50pF, whichever is greater.
X7R – + 20% of initial value (2)
Z5U – + 30% of initial value (2)
Dissipation Factor:
C0G – 0.25% maximum
X7R – 3.0% maximum
Z5U – 4.0% maximum
Insulation Resistance:
C0G – 10k Megohm or 100 Megohm x µF, whichever is less.
£500V test @ rated voltage, ³1kV test @ 500V.
X7R – 10k Megohm or 100 Megohm x µF, whichever is less.
³500V test @ rated voltage, >1kV test @ 500V.
Z5U – 1k Megohm or 100 Megohm x µF, whichever is less.
Thermal Shock:
EIA RS-198, Method 202, Condition B (C0G & X7R: -55°C to
+125°C); Condition A (Z5U: -55°C to 85°C)
(1)+53 PPM -30 PPM/ °C from +25°C to -55°C, + 60 PPM below
10pF.
(2)X7R and Z5U dielectrics exhibit aging characteristics; there-
fore, it is highly recommended that capacitors be deaged for 2
hours at 150°C and stabilized at room temperature for 48
hours before capacitance measurements are made.
Page 3
CERAMIC CONFORMALLY COATED/RADIAL
“STANDARD & HIGH VOLTAGE GOLDEN MAX”
Golden Max
STANDARD LEAD CONFIGURATION — OUTLINE DRAWINGS
*.276 (7.00) MIN.
C317
C322
C330
H
*
S
Drawings are not to scale. See table below for dimensions.
See page 10 for optional lead configurations.
Note: Non-standard lead lengths are available in bulk only.
OPTIONAL CONFIGURATIONS BY LEAD SPACING
The preferred lead wire configurations are shown on page 9. However, additional configurations are
available. All available options, including those on page 9, are shown below grouped by lead spacing.
Lead Spacing
.100" ± .030
Lead Spacing
.200" ± .030
Lead Spacing
.200" ± .030
C 3 1 5
.150
MAX.
.100
C 3 1 7
.150
MAX.
.200
C 3 2 5
.200
MAX.
.210
MAX.
.276
MIN.
MAX.
.320
MAX.
.230
.276
MIN.
C 3 1 6
.150
MAX.
.100
.200
C 3 1 8
.150
MAX.
.200
C 3 2 7
.200
MAX.
.230
MAX.
.230
±.030
.235
MAX.
.276
MIN.
.350
MAX.
C 3 2 0
.200
MAX.
.260
MAX.
.276
MIN.
.100
C 3 2 2C 3 2 3
.200
MAX.
.260
MAX.
.276
MIN.
.200
C 3 2 8
.200
MAX.
.325
MAX.
C 3 2 4C 3 2 6
.200
MAX.
.100
.125
.200
MAX.
.200
.260
MAX.
.276
MIN.
.320
MAX.
.276
MIN.
.200
MAX.
.100
.200
.350
MAX.
.230
± .030
Lead Spacing
.200" ± .030
Note: C330 Shoulder
bend leads:
X7R/50V 683-105
Z5U/100V 683-334
KEMET offers standard reeling of Molded and Conformally
Coated Axial Leaded Ceramic Capacitors for automatic insertion
or lead forming machines per EIA specification RS-296. KEMET’S
internal specification four-digit suffix, 7200, is placed at the end of
the part number to designate tape and reel packaging, ie:
C410C104Z5U5CA7200.
Paper (50 lb.) test minimum is inserted between the layers of
capacitors wound on reels for component pitch ≤ 0.400".
Capacitor lead length may extend only a maximum of .0625"
(1.59mm) beyond the tapes' edges. Capacitors are centered in a
row between the two tapes and will deviate only ± 0.031
(0.79mm) from the row center. A minimum of 36" (91.5 cm) leader
tape is provided at each end of the reel capacitors. Universal
splicing clips are used to connect the tape. Standard reel
quantities are shown on page 41.
KEMET offers standard reeling of Molded and Conformally
Coated Radial Leaded Ceramic Capacitors for automatic
insertion per EIA specification RS-468. Parts are taped to a
tagboard carrier strip, and wound on a reel as shown in
Figure 1. Kraft paper interleaving is inserted between the
layers of capacitors on the reel. Ammopack is also available,
with the same lead tape configuration and package quantities.
Figure 1
Carrier Strip
®
KEMET
12"
(30.48 cm
.655" ±0.010"
0.25)
(16.6 ±
)
*
(82.6)
31/4"
.059" to .315"
Greater Than
Over All
Height
of T aped
Component
Hub
1
/8"
(3.18)
s
Figure 3: Standard Reel
H1
C315*
C320*
D
0
C340**
C6xx#
C056**
C066**
H
F
C330**
CK06**
CKR06**
C062**
Figure 2: Lead Tape Configuration (See Table Below)
Ceramic Radial Tape and Reel Dimensions in Millimeters & (Inches)
DimensionSymbol
Sprocket Hole Diameter
Sprocket Hole Pitch
Component Pitch
Lead Spacing (1)
Sprocket Hole Center
to Lead Center (1)
Sprocket Hole Center
to Component Center
Height to Seating Plane
(straight leads) (2)
Component Height
Above T ape Center
(1) Measured at the egress from the carrier tape, on the component side.
(2) Determined by a 4 digit suffix placed at the end of the part number, as follows:
7301 =
7303 =
Recommended for parts with formed leads.
Recommended for parts with straight leads.