Technical Guide
Equivalent Circuit of Capacitor
100
Cp
Rs
Rp
Cp : Capacitance
Rp : Equivalent parallel
resistance
10
1
100m
Imp
1/ ω C
ω L
L
(Insulation resistance)
( ? Rated Voltage/LC)
Rs : Equivalent series
resistance
L : Inductance
ESR
10m
1m
100
R
1k
10k 100k 1M
Frequency (Hz)
10M
100M
Z = ? Rs +
(
)
1 + ω Cp Rp ?
+ ? ω L ?
(
)
1 + ω Cp Rp ?
?
?
Rp ?
2 2 2 ?
2
?
?
ω CpRp 2 ?
2 2 2 ?
2
Feature of Functional Polymer
100
10
1
0.1
Electrolyte (Aluminum Electrolytic Capacitor)
Manganese dioxide
(Tantalum Solid Electrolytic Capacitor)
TCNQ Complex salt
(Organic Semiconductive Capacitor)
PPY by Chemical Polymerization
0.01
( Ω? cm)
PPY by Electrolytic Polymerization
Conductive Polymer (PEDOT)
O
S
O
O
S
O
PEDOT
PEDT
FPCAP differs from the aluminum electrolytic capacitor in that in place of the electrolyte,
functional polymer is impregnated.
NICHICON CORPORATION / FPCAP ELECTRONICS (SUZHOU) CO., LTD.
n
49
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