Do you know how to calculate the ripple current of a tantalum capacitor?
First we give the formula as below:
In this formula ,
I is the maximum allowable ripple current (A).
P is the power dissipation (mW).
ESR is the equivalent series resistance (mΩ).
K is the temperature derating factor.
F is the frequency derating factor.
The temperature derating factor K and frequency derating factor F vary under different temperature and frequency conditions.
Below are the corresponding parameters for UF Capacitors’ CA45 series and CA55 series under specific conditions.
K(Temperature Derating Factor )
|
Temperature |
25℃ |
85℃ |
125℃ |
|
Derating Factor K |
1.0 |
0.9 |
0.4 |
F(Frequency Derating Factor)
|
Frequency |
10KHz |
100KHz |
500KHz |
1MHz |
|
Derating Factor F |
0.80 |
1.00 |
1.15 |
1.20 |
P(Power Dissipation)
|
Case Code |
Size Metric Code |
Power Dissipation@+25℃（mW） |
|
|
CA45 Series |
CA55 Series |
||
|
A |
3216-16(±0.20) |
75 |
100 |
|
B |
3528-19(±0.20) |
85 |
125 |
|
C |
6032-25(±0.30) |
110 |
175 |
|
H |
7343-19(±0.30) |
120 |
185 |
|
F |
7260-19(±0.30) |
130 |
200 |
|
D |
7343-28(±0.30) |
150 |
225 |
|
E |
7343-41(±0.30) |
165 |
250 |
|
V |
7361-36(±0.30) |
250 |
360 |
UF Capacitors is a global player in the passive components industry, we produce MLCC, tantalum capacitors, film capacitors, electrolytic capacitors since 1995.
We OEM for USA brand in China, so reliable quality & cost down by 20~30% with quality guarantee.
Following cross reference chart FYI. Kindly return RFQ for quotation in free. Thank you
|
Description |
UF Capacitors |
Kemet |
AVX |
Vishay |
|
 |
PolymerTantalum Capacitors |
CA55 Series |
T520B107M006ATE070 |
TCJC106M035R0200 |
T556B706M015AT |
 |
Tantalum Chip Capacitors, |
CA45 Series |
T489C155K050ATE2K5 |
TAJB226K016RNJ |
293D156X9016B2TE3 |
 |
Low ESR Chip Tantalum Capacitors, |
CA45U Series |
T494T475K016AT |
TPSA106K010R0900 |
593D476X9016D2TE3 |
 |
Radial Epoxy Dipped Tantalum Capacitor |
CA42 Series |
T350B474M050AS7301 |
TAP226K035CCS |
199D107X9016F6V1E3 |
Contact: carey@ufcapacitors.com
www.ufcapacitors.com