APPLICATION NOTES FOR MULTILAYER
CERAMIC CAPACITORS
TABLE 1
EIA TEMPERATURE CHARACTERISTIC CODES
FOR CLASS I DIELECTRICS
Significant Figure
of Temperature
Coefficient
PPM per
Degree C
Letter
Symbol
Multiplier Applied
to Temperature
Coefficient
Multi-
plier
Number
Symbol
Tolerance of
Temperature
Coefficient *
PPM per
Degree C
Letter
Symbol
0.0
0.3
0.9
1.0
1.5
2.2
3.3
4.7
7.5
C
B
A
M
P
R
S
T
U
-1
-10
-100
-1000
-100000
+1
+10
+100
+1000
+10000
0
1
2
3
4
5
6
7
8
9
±30
±60
±120
±250
±500
±1000
±2500
G
H
J
K
L
M
N
* These symetrical tolerances apply to a two-point measurement of
temperature coefficient: one at 25°C and one at 85°C. Some deviation
is permitted at lower temperatures. For example, the PPM tolerance
for C0G at -55°C is +30 / -72 PPM.
TABLE 2
EIA TEMPERATURE CHARACTERISTIC CODES
FOR CLASS II & III DIELECTRICS
Low Temperature
Rating
Degree
Celcius
Letter
Symbol
High Temperature Maximum Capacitance
Rating
Shift
Degree
Celcius
Number
Symbol
Percent
Letter
Symbol
+10C
-30C
-55C
Z
Y
X
+45C
+65C
+85C
+105C
+125C
+150C
+200C
2
4
5
6
7
8
9
±1.0%
±1.5%
±2.2%
±3.3%
±4.7%
±7.5%
±10.0%
±15.0%
±22.0%
+22 / -33%
+22 / -56%
+22 / -82%
A
B
C
D
E
F
P
R
S
T
U
V
+10
+20
+30
+40
+50
+60
+70
+80
6
© KEMET Electronics Corporation, P.O. Box 5928, Greenville, S.C. 29606, (864) 963-6300
KEMET [ KEMET CORPORATION ]
